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Cheap flights from San Francisco (SFO) to London (YXU) from $513

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 7/18. 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.
SFO — YXU
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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Cheap flight deals from San Francisco to London

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to London (YXU). 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 28, 2024.

Popular in

July

Cheapest in

February

Average price

$595

Round-trip from

$230
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 66% potential price drop
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Average for round-trip flights in May 2024
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From San Francisco to London
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What is the cheapest day to fly round-trip from San Francisco to London, Ontario?

Travelers have found that booking a Wednesday departure is the best way to save up to 96% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest month to fly from San Francisco to London, Ontario?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to London, Ontario. Flights to London, Ontario from San Francisco in February are about $565 on average during February, but can be found for as low as $195.

When is the cheapest time to fly from San Francisco to London, Ontario (SFO - YXU)?

One of the essential ways to save on airfare from San Francisco to London, Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 36% on airfare.

Cheap WestJet flights from San Francisco to London

Explore cheap flight options specifically provided by WestJet for the route between San Francisco 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 2,696,634 searches. Data last updated May 28, 2024.
Thu 7/183:20 pmSFO - YXU
2 stops10h 58mWestJet
Sun 7/218:00 pmYXU - SFO
2 stops20h 32mWestJet
Deal found 5/28$513
Thu 7/1812:50 pmSFO - YXU
1 stop13h 28mWestJet
Sun 7/216:15 amYXU - SFO
1 stop8h 45mWestJet
Deal found 5/28$587
Thu 7/183:20 pmSFO - YXU
3 stops34h 58mWestJet
Sun 7/216:15 amYXU - SFO
2 stops34h 17mWestJet
Deal found 5/28$674
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$785
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mWestJet
Deal found 5/27$804
Wed 6/53:20 pmSFO - YXU
2 stops35h 10mWestJet
Mon 6/106:15 amYXU - SFO
2 stops35h 19mWestJet
Deal found 5/27$823
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Mon 6/106:15 amYXU - SFO
1 stop8h 47mWestJet
Deal found 5/27$906
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$983
Thu 7/183:20 pmSFO - YXU
3 stops24h 39mWestJet
Sun 7/218:00 pmYXU - SFO
3 stops21h 33mWestJet
Deal found 5/28$1,158

Cheap San Francisco to London flights in May & June 2024

Find cheap flight options from San Francisco 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 2,696,634 searches. Prices were last updated on May 28, 2024.
Wed 6/512:07 pmSFO - YXU
2 stops38h 23mMultiple Airlines
Mon 6/106:15 amYXU - SFO
1 stop8h 47mMultiple Airlines
Deal found 5/27$688
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$785
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mWestJet
Deal found 5/27$804
Wed 6/53:20 pmSFO - YXU
2 stops35h 10mWestJet
Mon 6/106:15 amYXU - SFO
2 stops35h 19mWestJet
Deal found 5/27$823
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Mon 6/106:15 amYXU - SFO
1 stop8h 47mWestJet
Deal found 5/27$906
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$983
Wed 6/56:01 pmSFO - YXU
3 stops32h 29mMultiple Airlines
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mMultiple Airlines
Deal found 5/27$1,085
Wed 6/54:50 pmSFO - YXU
2 stops13h 26mMultiple Airlines
Mon 6/103:25 pmYXU - SFO
3 stops31h 47mMultiple Airlines
Deal found 5/27$1,109
Wed 6/53:20 pmSFO - YXU
3 stops35h 10mMultiple Airlines
Mon 6/106:15 amYXU - SFO
3 stops35h 19mMultiple Airlines
Deal found 5/27$1,203

San Francisco to London 2024 flight deals

Discover exclusive flight deals for travel between San Francisco and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Wed 6/512:07 pmSFO - YXU
2 stops38h 23mMultiple Airlines
Mon 6/106:15 amYXU - SFO
1 stop8h 47mMultiple Airlines
Deal found 5/27$688
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$785
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mWestJet
Deal found 5/27$804
Wed 6/53:20 pmSFO - YXU
2 stops35h 10mWestJet
Mon 6/106:15 amYXU - SFO
2 stops35h 19mWestJet
Deal found 5/27$823
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Mon 6/106:15 amYXU - SFO
1 stop8h 47mWestJet
Deal found 5/27$906
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$983
Wed 6/56:01 pmSFO - YXU
3 stops32h 29mMultiple Airlines
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mMultiple Airlines
Deal found 5/27$1,085
Wed 6/54:50 pmSFO - YXU
2 stops13h 26mMultiple Airlines
Mon 6/103:25 pmYXU - SFO
3 stops31h 47mMultiple Airlines
Deal found 5/27$1,109
Wed 6/53:20 pmSFO - YXU
3 stops35h 10mMultiple Airlines
Mon 6/106:15 amYXU - SFO
3 stops35h 19mMultiple Airlines
Deal found 5/27$1,203

San Francisco to London flights leaving soon

Find last-minute flight options from San Francisco 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 2,696,634 searches. Data last updated May 28, 2024.
Wed 6/512:07 pmSFO - YXU
2 stops38h 23mMultiple Airlines
Mon 6/106:15 amYXU - SFO
1 stop8h 47mMultiple Airlines
Deal found 5/27$688
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$785
Wed 6/53:20 pmSFO - YXU
2 stops24h 53mWestJet
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mWestJet
Deal found 5/27$804
Wed 6/53:20 pmSFO - YXU
2 stops35h 10mWestJet
Mon 6/106:15 amYXU - SFO
2 stops35h 19mWestJet
Deal found 5/27$823
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Mon 6/106:15 amYXU - SFO
1 stop8h 47mWestJet
Deal found 5/27$906
Wed 6/57:30 amSFO - YXU
1 stop8h 43mWestJet
Sun 6/98:00 pmYXU - SFO
1 stop19h 02mWestJet
Deal found 5/27$983
Wed 6/56:01 pmSFO - YXU
3 stops32h 29mMultiple Airlines
Sun 6/98:00 pmYXU - SFO
2 stops45h 34mMultiple Airlines
Deal found 5/27$1,085
Wed 6/54:50 pmSFO - YXU
2 stops13h 26mMultiple Airlines
Mon 6/103:25 pmYXU - SFO
3 stops31h 47mMultiple Airlines
Deal found 5/27$1,109
Wed 6/53:20 pmSFO - YXU
3 stops35h 10mMultiple Airlines
Mon 6/106:15 amYXU - SFO
3 stops35h 19mMultiple Airlines
Deal found 5/27$1,203

Find flights from San Francisco to London within your budget

Customize your flight search to find flights from San Francisco 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 2,696,634 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$513 - $1,158

Route

Depart

Return

Price

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 7/18

2 stops10h 58m

London

Sun 7/21

2 stops20h 32m

$513

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 7/18

1 stop13h 28m

London

Sun 7/21

1 stop8h 45m

$587

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 7/18

3 stops34h 58m

London

Sun 7/21

2 stops34h 17m

$674

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 7/18

3 stops24h 39m

London

Sun 7/21

3 stops21h 33m

$1,158

Flights are sorted by cheapest first

Deals found on 5/28

When is the cheapest time to fly from San Francisco to London, Ontario?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to London. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their San Francisco to London, Ontario flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco 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.

Temperature and rainfall in London by month

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

YXU

Temperature

21.2 - 68 °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 28, 2024.
WestJet
7.5
Good
2,879 reviews
Check prices

Overall

7.5

Crew

8.1

Food

6.5

Comfort

7.3

Boarding

7.7

Entertainment

6.4

Reviews

1 / 10

System was down and the line on the check in counter was very slow.

WestJet
7.5
Good
2,879 reviews
WestJet
7.5
Good
2,879 reviews
Check prices

Overall

7.5

Crew

8.1

Food

6.5

Comfort

7.3

Boarding

7.7

Entertainment

6.4

Reviews

1 / 10

System was down and the line on the check in counter was very slow.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to London. 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 San Francisco to London, Ontario for under $600 on Cheapflights?

    Yes, there are multiple flights from San Francisco to London, Ontario for under $600. The cheapest flight booked recently is on WestJet for just $513, but on average you can expect to pay $733.

  • Are there last-minute flights available from San Francisco to London, Ontario for under $700?

    There are currently 9+ open flights from San Francisco to London, Ontario within the next 7 days for less than $700.

  • What is the cheapest airline to fly from San Francisco to London, Ontario round-trip?

    WestJet, at $513, was found to be the cheapest airline from San Francisco to London, Ontario.. This flight start at 9% lower than the current average price 3 months from now.

  • What does SFO to YXU mean?

    SFO stands for San Francisco Airport, while YXU stands for London Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

    The amount of baggage you can bring on your San Francisco 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 San Francisco to London with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Francisco 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 San Francisco to London that include hotel bookings?

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

  • How can I find direct flights from San Francisco to London?

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

  • Can I find deals for business class flights from San Francisco to London?

    Yes. Cheapflights offers flight deals from San Francisco 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 San Francisco to London that allow pets onboard?

    Many airlines flying from San Francisco 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 San Francisco to London?

    Yes, you can often find last-minute deals on San Francisco 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 San Francisco to London, Ontario flight deals updated?

    The San Francisco to London, Ontario flight deals you see on this page were last updated on 5/27.

See more FAQs

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Top airline flying from San Francisco to London

Discover the top airline that operate flights from San Francisco 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 2,696,634 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$205Average$735FlexibilityNo cancel feeOn-time67%
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Search flights from San Francisco to London by cabin class

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

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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 San Francisco to London?

Deals for San Francisco to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from San Francisco.

Can Cheapflights find flights from San Francisco to London with no change fees?

Need flexible booking options for your flight to London from San Francisco? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco to London become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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