Cheap flights from Dulles Intl (IAD) to the United Kingdom from $192

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. 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.
IAD — LHR
Jun 12 — Jun 191

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom?

Travelers have found it’s best to book a flight 24 days in advance to save up to 17% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 24 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to United Kingdom 1-2 weeks in advance for as low as $767, or $807 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to United Kingdom?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to United Kingdom. Flights to United Kingdom from Washington, D.C. Dulles Intl Airport in October are about $719 on average during October, but can be found for as low as $354.

What is the cheapest time of day to fly from IAD to GB?

When flying from Washington, D.C. Dulles Intl Airport to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Dulles Intl to United Kingdom flights in June & July 2024

Find cheap flight options from Dulles Intl to United Kingdom specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 7, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to United Kingdom in 2024. Check back in a little while for more flight options.
Wed 7/106:50 pmIAD - STN
1 stop10h 50mPLAY
Sun 9/111:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$432
Sat 7/66:50 pmIAD - STN
1 stop10h 50mPLAY
Tue 9/1711:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$468
Sat 7/66:50 pmIAD - STN
1 stop10h 50mPLAY
Wed 8/2811:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$476
Sun 7/286:50 pmIAD - STN
1 stop10h 50mPLAY
Thu 8/2911:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$492
Sun 7/286:50 pmIAD - STN
1 stop10h 50mPLAY
Sat 9/711:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$521
Tue 6/256:50 pmIAD - STN
1 stop10h 50mPLAY
Fri 11/110:55 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$529
Wed 7/3111:15 pmIAD - LHR
1 stop16h 05mIcelandair
Tue 8/209:25 pmLHR - IAD
1 stop29h 45mIcelandair
Deal found 6/6$543
Sat 7/136:50 pmIAD - STN
1 stop10h 50mPLAY
Wed 7/1711:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$546
Wed 7/3111:15 pmIAD - LHR
1 stop16h 05mIcelandair
Thu 8/229:25 pmLHR - IAD
1 stop29h 45mIcelandair
Deal found 6/6$550

Dulles Intl to United Kingdom 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and United Kingdom in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 7, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to United Kingdom in 2024. Check back in a little while for more flight options.
Mon 9/236:50 pmIAD - STN
1 stop10h 50mPLAY
Mon 9/3011:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$407
Sun 9/86:50 pmIAD - STN
1 stop10h 50mPLAY
Thu 9/1211:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$408
Mon 9/96:50 pmIAD - STN
1 stop10h 50mPLAY
Sat 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$409
Wed 9/46:50 pmIAD - STN
1 stop10h 50mPLAY
Sat 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$410
Fri 9/66:50 pmIAD - STN
1 stop10h 50mPLAY
Mon 9/1611:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$411
Sat 9/146:50 pmIAD - STN
1 stop10h 50mPLAY
Fri 9/2711:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$412
Fri 11/156:05 pmIAD - STN
1 stop10h 50mPLAY
Fri 11/2210:55 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$415
Fri 9/206:50 pmIAD - STN
1 stop10h 50mPLAY
Fri 9/2711:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/6$416
Sun 9/86:50 pmIAD - STN
1 stop10h 50mPLAY
Sun 9/2211:40 amSTN - IAD
1 stop11h 00mPLAY
Deal found 6/7$417

Dulles Intl to United Kingdom flights leaving soon

Find last-minute flight options from Dulles Intl to United Kingdom 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 3,050,429 searches. Data last updated June 7, 2024.
Check out these flights departing soon from Washington, D.C. to United Kingdom. It's wise to confirm all flight details are correct before booking.
Sun 6/94:30 pmIAD - LCY
1 stop12h 35mITA Airways
Mon 6/174:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$735
Tue 6/114:30 pmIAD - LCY
1 stop12h 35mITA Airways
Tue 6/254:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$740
Mon 6/104:30 pmIAD - LCY
1 stop12h 35mITA Airways
Mon 6/174:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$743
Tue 6/114:30 pmIAD - LCY
1 stop12h 35mITA Airways
Tue 6/258:30 amLCY - IAD
1 stop35h 10mITA Airways
Deal found 6/6$745
Tue 6/114:30 pmIAD - LCY
1 stop12h 35mITA Airways
Tue 6/184:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$746
Tue 6/114:30 pmIAD - LCY
1 stop12h 35mITA Airways
Tue 6/184:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/7$747
Mon 6/104:30 pmIAD - LCY
1 stop12h 35mITA Airways
Thu 6/204:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$756
Tue 6/114:30 pmIAD - LCY
1 stop12h 35mITA Airways
Thu 6/204:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$762
Mon 6/104:30 pmIAD - LCY
1 stop18h 45mITA Airways
Mon 6/244:50 pmLCY - IAD
1 stop26h 50mITA Airways
Deal found 6/6$768

One-way flights to United Kingdom from Dulles Intl

Search for one-way flight options from Dulles Intl to United Kingdom. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 7, 2024.
Users traveling one-way from Washington, D.C. to United Kingdom can select one of these great deals. Users can also find round-trip Washington, D.C. to United Kingdom flights by using the search form above.
Mon 12/27:40 pmIAD - LGW
1 stop10h 05mIcelandair
Deal found 6/6$192
Mon 12/27:40 pmIAD - LHR
1 stop10h 15mIcelandair
Deal found 6/6$192
Mon 10/288:40 pmIAD - LGW
1 stop10h 15mIcelandair
Deal found 6/6$214
Mon 10/288:40 pmIAD - LGW
1 stop10h 15mIcelandair
Deal found 6/6$215
Tue 10/18:30 pmIAD - LGW
1 stop10h 15mIcelandair
Deal found 6/6$222
Tue 10/18:30 pmIAD - LHR
1 stop10h 25mIcelandair
Deal found 6/6$222
Tue 10/298:40 pmIAD - LGW
1 stop10h 15mIcelandair
Deal found 6/6$224
Tue 10/88:30 pmIAD - LHR
1 stop10h 25mIcelandair
Deal found 6/6$224
Tue 7/2311:15 pmIAD - LGW
1 stop31h 30mIcelandair
Deal found 6/6$229

Find flights from Dulles Intl to United Kingdom within your budget

Customize your flight search to find flights from Dulles Intl to United Kingdom 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 3,050,429 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$407 - $525

Route

Depart

Return

Price

Washington, D.C. Dulles IntlLondon Stansted

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 9/23

1 stop10h 50m

London Stansted

Mon 9/30

1 stop11h 00m

$407

Washington, D.C. Dulles IntlLondon Luton

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

Thu 9/19

1 stop13h 20m

London Luton

Mon 9/23

1 stop16h 40m

$451

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 12/1

Nonstop7h 10m

London Heathrow

Wed 12/18

Nonstop8h 30m

$488

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 12/1

Nonstop7h 10m

London Heathrow

Wed 12/18

Nonstop8h 30m

$490

Washington, D.C. Dulles IntlLondon Gatwick

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 10/13

1 stop16h 30m

London Gatwick

Tue 10/22

1 stop27h 50m

$499

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 10/11

1 stop22h 10m

London Heathrow

Sun 10/13

1 stop34h 05m

$506

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 10/2

1 stop16h 10m

London Heathrow

Wed 10/9

1 stop12h 35m

$524

Washington, D.C. Dulles IntlGlasgow Intl

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 11/16

1 stop9h 15m

Glasgow Intl

Sun 11/24

1 stop10h 35m

$525

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 11/25

1 stop12h 30m

London Heathrow

Mon 12/2

1 stop13h 55m

$525

Flights are sorted by cheapest first

Deals found on 6/6

No data available for this route at this time. Please check back soon.

Best time to book a flight from Dulles Intl to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated June 7, 2024.
See what other customers who have flown with Scandinavian Airlines, SWISS and Lufthansa from Washington, D.C. to United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,363 reviews

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

8.0
Very good
10,363 reviews
8.0
Very good
10,363 reviews

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.9
Good
1,483 reviews
8.0
Very good
10,363 reviews

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,927 reviews
8.0
Very good
10,363 reviews

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,362 reviews
8.0
Very good
10,363 reviews

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.7
Good
999 reviews
8.0
Very good
10,363 reviews

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Washington, D.C. Dulles Intl Airport to United Kingdom for under $500 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to United Kingdom for under $500. The cheapest flight booked recently is on PLAY for just $407, but on average you can expect to pay $417.

  • Are there nonstop flights from Washington, D.C. Dulles Intl Airport to United Kingdom for under $500 on Cheapflights?

    Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to United Kingdom under $500. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to United Kingdom is less than $568.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to United Kingdom for under $800?

    There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to United Kingdom within the next 7 days for less than $800.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to United Kingdom?

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to United Kingdom?

    Before booking your flight to United Kingdom from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (66%), Aer Lingus (66%), Finnair( 66%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to United Kingdom?

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to United Kingdom is $458. On average you can expect to pay $2,261. The most popular route, (Washington, D.C. Dulles Intl - London Heathrow), can usually be booked for $276.

  • What does IAD to LHR mean?

    IAD and LHR are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. IAD to LHR refers to a flight route from Washington, D.C. Dulles Intl Airport to London Heathrow Airport. Manchester Airport (MAN), Edinburgh Turnhouse Airport (EDI), London Gatwick Airport (LGW), Birmingham Airport (BHX), Glasgow Intl Airport (GLA) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Dulles Intl to United Kingdom that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to United Kingdom 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 Dulles Intl to United Kingdom with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to United Kingdom 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 Dulles Intl to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to United Kingdom.

  • Can I find deals for business class flights from Dulles Intl to United Kingdom?

    Yes. Cheapflights offers flight deals from Dulles Intl to United Kingdom 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 Dulles Intl to United Kingdom that allow pets onboard?

    Many airlines flying from Dulles Intl to United Kingdom 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 Dulles Intl to United Kingdom?

    Yes, you can often find last-minute deals on Dulles Intl to United Kingdom 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 Washington, D.C. Dulles Intl Airport to United Kingdom flight deals updated?

    The Washington, D.C. Dulles Intl Airport to United Kingdom flight deals you see on this page were last updated on 6/7.

  • What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to United Kingdom?

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom (average of $653). Flying from Washington, D.C. Dulles Intl Airport to United Kingdom in June is currently the most expensive (average of $1,102). 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.

See more FAQs

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Alternative routes for Dulles Intl to United Kingdom
See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Dulles Intl to United Kingdom

Discover the top 10 airlines that operate flights from Dulles Intl to United Kingdom. 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 3,050,429 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$182Average$614FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$241Average$794FlexibilityNo cancel feeOn-time75%
PLAYCheapest$367Average$494FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$387Average$805FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$387Average$932FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$392Average$969FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$426Average$565FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$478Average$600FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$479Average$724FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$492Average$722FlexibilityNo cancel feeOn-time76%

Search flights from Dulles Intl to United Kingdom by cabin class

Find flights from Dulles Intl to United Kingdom, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Dulles Intl to United Kingdom

Find hourly flight availability from Dulles Intl to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 7, 2024.
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
39%of flight departuresAfternoonNoon to 6 pm
60%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM
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