HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Idaho Falls (IDA) to London (LON) from $733

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IDA — LON
May 20 — May 271
From?
To?
Mon 5/20
Mon 5/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Cheap flight deals from Idaho Falls to London

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 15, 2024.

Popular in

June

Cheapest in

March

Average price

$1,422

Round-trip from

$643
High demand for flights, 43% potential price rise
Search Deals
Best time to find cheap flights, 33% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Idaho Falls Fanning Field to London (LON)
Search Deals

What is the cheapest day to fly round-trip from Idaho Falls to London?

Users have found that flying from Idaho Falls to London on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Idaho Falls to London?

The best pricing can be found in the month of March. Prices to London from Idaho Falls average $984. You can even find prices in March for less than $984, as users have found deals to London from as low as $657. The month of June appears to be one of the more expensive times to travel to London from Idaho Falls. Flying in the targeted month can save you up to 76%.

When is the cheapest time to fly from Idaho Falls to London (IDA - LON)?

It’s typically best to fly out from Idaho Falls to London at noon. Doing so could potentially save you 45% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap United Airlines flights from Idaho Falls to London

Explore cheap flight options specifically provided by United Airlines for the route between Idaho Falls and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 15, 2024.
Consider these cheap United Airlines flights we've found departing from Idaho Falls to London. Deals update often to give you more flight options matching your criteria
Tue 10/17:00 amIDA - LHR
1 stop22h 20mUnited Airlines
Thu 10/3112:00 pmLHR - IDA
2 stops31h 33mUnited Airlines
Deal found 5/15$733
Sat 11/95:57 pmIDA - LHR
2 stops30h 33mUnited Airlines
Wed 11/203:00 pmLHR - IDA
2 stops33h 22mUnited Airlines
Deal found 5/14$737
Sat 11/95:57 pmIDA - LHR
1 stop32h 43mUnited Airlines
Wed 11/203:00 pmLHR - IDA
2 stops33h 22mUnited Airlines
Deal found 5/14$738
Tue 10/110:55 amIDA - LHR
2 stops17h 15mUnited Airlines
Thu 10/317:40 amLHR - IDA
2 stops19h 13mUnited Airlines
Deal found 5/15$740
Sat 11/95:57 pmIDA - LHR
1 stop32h 43mUnited Airlines
Wed 11/2011:35 amLHR - IDA
1 stop16h 18mUnited Airlines
Deal found 5/14$754
Tue 5/2810:45 amIDA - LHR
1 stop15h 55mUnited Airlines
Wed 6/57:25 amLHR - IDA
2 stops16h 50mUnited Airlines
Deal found 5/14$904

Cheap American Airlines flights from Idaho Falls to London

Explore cheap flight options specifically provided by American Airlines for the route between Idaho Falls and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 15, 2024.
Browse through some of the cheapest American Airlines flights traveling from Idaho Falls to London. Make sure to examine the flight information before completing your reservation.
Mon 5/277:00 amIDA - LHR
1 stop22h 15mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$887
Mon 5/271:15 pmIDA - LHR
2 stops15h 55mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/14$890
Tue 5/281:15 pmIDA - LHR
2 stops16h 30mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$892
Mon 5/277:00 amIDA - LHR
1 stop16h 25mAmerican Airlines
Wed 6/51:05 pmLHR - IDA
1 stop15h 38mAmerican Airlines
Deal found 5/14$918
Sat 6/11:15 pmIDA - LHR
1 stop14h 30mAmerican Airlines
Mon 6/37:40 amLHR - IDA
2 stops20h 54mAmerican Airlines
Deal found 5/14$1,740
Sat 6/112:05 pmIDA - LHR
2 stops17h 40mAmerican Airlines
Mon 6/36:45 amLHR - IDA
2 stops21h 49mAmerican Airlines
Deal found 5/14$1,745

Cheap Idaho Falls to London flights in May & June 2024

Find cheap flight options from Idaho Falls to London specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,644,845 searches. Prices were last updated on May 15, 2024.
Scroll through some of the best deals on flights from Idaho Falls to London in 2024. Check back in a little while for more flight options.
Mon 5/277:00 amIDA - LHR
1 stop22h 15mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$887
Mon 5/277:00 amIDA - LHR
1 stop22h 15mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/15$888
Mon 5/271:15 pmIDA - LHR
2 stops15h 55mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/14$890
Mon 5/271:15 pmIDA - LHR
2 stops15h 55mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/15$891
Tue 5/281:15 pmIDA - LHR
2 stops16h 30mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$892
Tue 5/2810:45 amIDA - LHR
1 stop15h 55mUnited Airlines
Wed 6/57:25 amLHR - IDA
2 stops16h 50mUnited Airlines
Deal found 5/14$904
Mon 5/277:00 amIDA - LHR
1 stop16h 25mAmerican Airlines
Wed 6/51:05 pmLHR - IDA
1 stop15h 38mAmerican Airlines
Deal found 5/14$918
Sat 6/11:15 pmIDA - LHR
1 stop14h 30mAmerican Airlines
Mon 6/37:40 amLHR - IDA
2 stops20h 54mAmerican Airlines
Deal found 5/14$1,740
Sat 6/112:05 pmIDA - LHR
2 stops17h 40mAmerican Airlines
Mon 6/36:45 amLHR - IDA
2 stops21h 49mAmerican Airlines
Deal found 5/14$1,745

Idaho Falls to London 2024 flight deals

Discover exclusive flight deals for travel between Idaho Falls and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 15, 2024.
Scroll through some of the best deals on flights from Idaho Falls to London in 2024. Check back in a little while for more flight options.
Tue 10/17:00 amIDA - LHR
1 stop22h 20mUnited Airlines
Thu 10/3112:00 pmLHR - IDA
2 stops31h 33mUnited Airlines
Deal found 5/15$733
Sat 11/95:57 pmIDA - LHR
2 stops30h 33mUnited Airlines
Wed 11/203:00 pmLHR - IDA
2 stops33h 22mUnited Airlines
Deal found 5/14$737
Sat 11/95:57 pmIDA - LHR
1 stop32h 43mUnited Airlines
Wed 11/203:00 pmLHR - IDA
2 stops33h 22mUnited Airlines
Deal found 5/14$738
Tue 10/110:55 amIDA - LHR
2 stops17h 15mUnited Airlines
Thu 10/317:40 amLHR - IDA
2 stops19h 13mUnited Airlines
Deal found 5/15$740
Tue 10/11:05 pmIDA - LHR
1 stop13h 55mKLM
Thu 10/3110:45 amLHR - IDA
1 stop17h 16mKLM
Deal found 5/15$749
Sat 11/95:57 pmIDA - LHR
1 stop32h 43mUnited Airlines
Wed 11/2011:35 amLHR - IDA
1 stop16h 18mUnited Airlines
Deal found 5/14$754
Mon 5/277:00 amIDA - LHR
1 stop22h 15mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$887
Mon 5/277:00 amIDA - LHR
1 stop22h 15mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/15$888
Mon 5/271:15 pmIDA - LHR
2 stops15h 55mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/14$890

Idaho Falls to London flights leaving soon

Find last-minute flight options from Idaho Falls to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 15, 2024.
Book one of these great deals on flights from Idaho Falls to London. Users should be sure to double check the price, date, and time of their last-minute flight.
Mon 5/277:00 amIDA - LHR
1 stop22h 15mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$887
Mon 5/271:15 pmIDA - LHR
2 stops15h 55mAmerican Airlines
Wed 6/56:45 amLHR - IDA
2 stops21h 58mAmerican Airlines
Deal found 5/14$890
Tue 5/281:15 pmIDA - LHR
2 stops16h 30mAmerican Airlines
Wed 6/57:40 amLHR - IDA
2 stops21h 03mAmerican Airlines
Deal found 5/14$892
Tue 5/2810:45 amIDA - LHR
1 stop15h 55mUnited Airlines
Wed 6/57:25 amLHR - IDA
2 stops16h 50mUnited Airlines
Deal found 5/14$904
Mon 5/277:00 amIDA - LHR
1 stop16h 25mAmerican Airlines
Wed 6/51:05 pmLHR - IDA
1 stop15h 38mAmerican Airlines
Deal found 5/14$918

Find flights from Idaho Falls to London within your budget

Customize your flight search to find flights from Idaho Falls to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 15, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$733 - $1,771

Route

Depart

Return

Price

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 10/1

1 stop22h 20m

London Heathrow

Thu 10/31

2 stops31h 33m

$733

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 11/9

2 stops30h 33m

London Heathrow

Wed 11/20

2 stops33h 22m

$737

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 11/9

1 stop32h 43m

London Heathrow

Wed 11/20

2 stops33h 22m

$738

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 10/1

2 stops17h 15m

London Heathrow

Thu 10/31

2 stops19h 13m

$740

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 10/1

1 stop13h 55m

London Heathrow

Thu 10/31

1 stop17h 16m

$749

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 5/27

1 stop22h 15m

London Heathrow

Wed 6/5

2 stops21h 03m

$887

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 5/27

2 stops15h 55m

London Heathrow

Wed 6/5

2 stops21h 58m

$890

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 5/28

2 stops16h 30m

London Heathrow

Wed 6/5

2 stops21h 03m

$892

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 6/1

1 stop14h 30m

London Heathrow

Mon 6/3

1 stop15h 29m

$1,771

Flights are sorted by cheapest first

Deals found on 5/15

When is the cheapest time to fly from Idaho Falls to London?

Use this chart to determine the cheapest time to fly round-trip from Idaho Falls to London. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Idaho Falls to London flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to London by month

Plan your trip from Idaho Falls to London by taking into account the cheapest months to travel. The average price of a one-way flight from Idaho Falls to London is currently $0 while a round-trip flight costs $904. Price data was last updated on May 12, 2024.

Currently, November is the cheapest month in which you can book a flight from Idaho Falls to London (average of $653). Flying from Idaho Falls to London in June is currently the most expensive (average of $1,150). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$673

February

$662

March

$715

April

$692

May

$733

June

$1,150

July

$976

August

$775

September

$745

October

$708

November

$653

December

$672

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated May 15, 2024.
See what other customers who have flown with United Airlines and American Airlines from Idaho Falls to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.9
Good
1,568 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.3

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

KLM
7.9
Good
1,568 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.3

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

United Airlines
7.4
Good
10,959 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.3

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

American Airlines
7.3
Good
14,561 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.9

Comfort

7.6

Food

7.3

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Idaho Falls to London?

    Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to London from Idaho Falls. Booking flights from Fanning Field (IDA) to London should be relatively easy as there are 0 daily outbound flights to London from 2 different airlines.

  • Can I find flights from Idaho Falls to London for under $800 on Cheapflights?

    Yes, there are multiple flights from Idaho Falls to London for under $800. The cheapest flight booked recently is on United Airlines for just $733, but on average you can expect to pay $1,014.

  • Are there last-minute flights available from Idaho Falls to London for under $900?

    There are currently 5+ open flights from Idaho Falls to London within the next 7 days for less than $900.

  • What are the cheapest airlines flying from Idaho Falls to London round-trip?

    Cheapflights users have booked flights from Idaho Falls to London round-trip from $733. Other airlines that can offer you cheap pricing are KLM, from $749, and American Airlines, from $887. You may be able to fly from Idaho Falls to London for 25% less than the average price by searching for these airlines.

  • What does IDA to LHR mean?

    This is defined as Idaho Falls Fanning Field Airport (IDA) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely. Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

  • Can I find deals for flights from Idaho Falls to London that include extra baggage allowance?

    The amount of baggage you can bring on your Idaho Falls to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Idaho Falls to London with specific airlines?

    Yes, Cheapflights allows you to browse and filter Idaho Falls to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Idaho Falls to London that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to London.

  • Can I find deals for business class flights from Idaho Falls to London?

    Yes. Cheapflights offers flight deals from Idaho Falls to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Idaho Falls to London that allow pets onboard?

    Many airlines flying from Idaho Falls to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Idaho Falls to London?

    Yes, you can often find last-minute deals on Idaho Falls to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Idaho Falls to London flight deals updated?

    The Idaho Falls to London flight deals you see on this page were last updated on 5/15.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho Falls to London
See prices for flight routes from nearby airports that may be better suited for you.

Boise to Heathrow flights
Spokane to Heathrow flights
Boise to Gatwick flights
Spokane to Gatwick flights
Boise to London City flights
Spokane to London City flights
Idaho Falls to Heathrow flights
Boise to Edinburgh flights
Jackson to Heathrow flights
Spokane to Edinburgh flights
Spokane to Southampton flights
Spokane to Manchester flights
Jackson to Gatwick flights
Jackson to Birmingham flights
Jackson to Leeds flights
Jackson to Manchester flights
Boise to Birmingham flights

Top 2 airlines flying from Idaho Falls to London

Discover the top 2 airlines that operate flights from Idaho Falls to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,644,845 searches. Data last updated May 15, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$675Average$773FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$712Average$877FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
New York to Amsterdam flights
New York to Madrid flights
Los Angeles to Amsterdam flights
Miami to Barcelona flights
Dallas to Minneapolis flights
San Francisco to Paris flights
Las Vegas to Reno flights
Dallas to Detroit flights
Miami to Mexico City flights
Denver to Detroit flights
Seattle to Tokyo flights
Idaho Falls to Lewiston, Idaho flights

Search flights from Idaho Falls to London by cabin class

Find flights from Idaho Falls to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Montes Claros
Flights to Girona Costa Brava
Flights to Naxos
Flights to Bourgas
Flights to Hyannis Barnstable
Flights to Samos
Flights to Reggio Calabria Tito Menniti
Flights to Devils Lake
Flights to Ningbo Lishe Intl
Flights to Pellston Emmet County
Flights to Provincetown
Flights to Cortez Montezuma County
Flights to Ohrid
Flights to Oran Es Senia
Flights to Menorca/Mahon
Flights to Hakodate
Flights to Ordu/Giresun
Flights to Laayoune Hassan I
Flights to Cornwall Newquay
Flights to Melilla
Flights to Rennes St Jacques
Flights to Parikia Paros
Flights to Constanţa Mihail Kogalniceanu
Flights to Miyakojima Hirara

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Idaho Falls to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Idaho Falls today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Idaho Falls to London?

Cheapflights helps you find that perfect flight to London from Idaho Falls by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Idaho Falls to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Idaho Falls to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Idaho Falls to London become cheaper?

Yes, Cheapflights offers price alerts on Idaho Falls to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines