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Cheap flights from San Francisco Bay Area to London, ON from C$ 220

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YXU
5 Jul — 12 Jul1
1 adult

Cheap flight deals from San Francisco Bay Area to London

Keep the following information in mind while searching for San Francisco Bay Area to London flight deals. Data was last updated 30 June 2025.

Round-trip from

C$ 431

One-way from

C$ 220

Popular in

December

Cheapest in

March

Average price

C$ 601
WestJet
  • WestJet
  • 25/7-8/8
  • 4 total stops
  • 22h 28m total
  • San Francisco Bay Area to London
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WestJet
  • WestJet
  • 15/8
  • 1 total stop
  • 8h 09m total
  • San Francisco Bay Area to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 202 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 74 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from San Francisco Bay Area to London

Cheapest flights from San Francisco Bay Area to London
Explore the most affordable flight options available from San Francisco Bay Area to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.

Fri 25/72:45 p.m.SFO - YXU
2 stops11h 29mWestJet
Fri 8/86:00 a.m.YXU - SFO
2 stops10h 59mWestJet
Deal found 29/6C$ 431
Sun 20/76:05 p.m.SFO - YXU
1 stop8h 09mDelta
Fri 25/76:00 a.m.YXU - SFO
1 stop9h 05mDelta
Deal found 29/6C$ 648
Thu 14/810:15 a.m.SFO - YXU
3 stops15h 59mMultiple Airlines
Thu 21/86:00 a.m.YXU - SFO
1 stop8h 56mMultiple Airlines
Deal found 30/6C$ 674
Wed 13/812:20 a.m.SFO - YXU
2 stops11h 42mUnited Airlines
Thu 21/86:15 a.m.YXU - SFO
1 stop9h 38mUnited Airlines
Deal found 30/6C$ 676
Sun 20/710:56 p.m.SFO - YXU
1 stop7h 21mAir Canada
Thu 24/76:15 a.m.YXU - SFO
2 stops14h 28mAir Canada
Deal found 29/6C$ 725
Wed 13/811:14 a.m.SJC - YXU
2 stops15h 00mDelta
Wed 20/86:00 a.m.YXU - SJC
2 stops13h 07mDelta
Deal found 29/6C$ 900
Thu 3/710:15 a.m.SFO - YXU
1 stop31h 45mFlair Airlines
Fri 25/79:45 p.m.YXU - SFO
1 stop14h 45mFlair Airlines
Deal found 30/6C$ 934
Wed 13/84:41 p.m.SJC - YXU
3 stops33h 33mMultiple Airlines
Wed 20/89:45 p.m.YXU - SJC
3 stops28h 13mMultiple Airlines
Deal found 29/6C$ 992
Sat 19/711:32 a.m.SJC - YXU
2 stops14h 42mWestJet
Sun 27/78:00 p.m.YXU - SJC
2 stops21h 40mWestJet
Deal found 30/6C$ 1,286
Sat 19/77:00 a.m.SJC - YXU
3 stops23h 17mUnited Airlines
Sun 27/75:45 p.m.YXU - SJC
2 stops21h 17mUnited Airlines
Deal found 30/6C$ 1,384

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco Bay Area 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 629,999 searches. Data last updated 30 June 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to London that are best for you.

Fly from

San Francisco Bay Area

Fly to

London

Route

Depart

Return

Price

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 25/7

2:45 p.m.-5:14 a.m.

2 stops11h 29m

London

Fri 8/8

6:00 a.m.-1:59 p.m.

2 stops10h 59m

C$ 431

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 20/7

6:05 p.m.-5:14 a.m.

1 stop8h 09m

London

Fri 25/7

6:00 a.m.-12:05 p.m.

1 stop9h 05m

C$ 648

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Thu 14/8

10:15 a.m.-5:14 a.m.

3 stops15h 59m

London

Thu 21/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

C$ 674

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Wed 13/8

12:20 a.m.-3:02 p.m.

2 stops11h 42m

London

Thu 21/8

6:15 a.m.-12:53 p.m.

1 stop9h 38m

C$ 676

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Sun 20/7

10:56 p.m.-9:17 a.m.

1 stop7h 21m

London

Thu 24/7

6:15 a.m.-5:43 p.m.

2 stops14h 28m

C$ 725

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Wed 13/8

11:14 a.m.-5:14 a.m.

2 stops15h 00m

London

Wed 20/8

6:00 a.m.-4:07 p.m.

2 stops13h 07m

C$ 900

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Wed 13/8

4:41 p.m.-5:14 a.m.

3 stops33h 33m

London

Wed 20/8

9:45 p.m.-10:58 p.m.

3 stops28h 13m

C$ 992

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Sat 19/7

11:32 a.m.-5:14 a.m.

2 stops14h 42m

London

Sun 27/7

8:00 p.m.-2:40 p.m.

2 stops21h 40m

C$ 1,286

San JoseLondon

SJC - YXU

SJCYXU

San Jose

Sat 19/7

7:00 a.m.-9:17 a.m.

3 stops23h 17m

London

Sun 27/7

5:45 p.m.-12:02 p.m.

2 stops21h 17m

C$ 1,384

San FranciscoLondon

SFO - YXU

SFOYXU

San Francisco

Fri 15/8

6:05 p.m.-5:14 a.m.

1 stop8h 09m

C$ 220

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/6

Showing 1-10 of 14 results
1
2

Best time to book a flight from San Francisco Bay Area to London

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

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to London

What is the cheapest month to book a flight from San Francisco Bay Area to London, Ontario?

Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London, Ontario (average of C$ 243). Flying from San Francisco Bay Area to London, Ontario in December is currently the most expensive (average of C$ 478). 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.

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 30 June 2025.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet from San Francisco Bay Area to London. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,908 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,654 reviews
Delta
8.0
Very good
7,973 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area 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 into for flights to London from San Francisco Bay Area?

    If you book a flight to London from San Francisco Bay Area, you will be flying to London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London.

  • What are the cheapest airlines to fly from San Francisco Bay Area to London, Ontario one-way?

    C$ 220 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from C$ 297 and C$ 302, respectively.

  • Can I find deals for flights from San Francisco Bay Area to London that include hotel bookings?

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

  • How can I find direct flights from San Francisco Bay Area 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 Bay Area to London.

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

    Yes. Cheapflights offers flight deals from San Francisco Bay Area 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.

  • What is the cheapest month to book a flight from San Francisco Bay Area to London, Ontario?

    Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London, Ontario (average of C$ 243). Flying from San Francisco Bay Area to London, Ontario in December is currently the most expensive (average of C$ 478). 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

Travelling to a place near San Francisco Bay Area?

Book flights to San Francisco Bay Area if you plan to visit one of these locations
Grand Bend
Port Stanley

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Alternative routes for San Francisco Bay Area to London

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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 Bay Area to London?

Cheapflights makes it easy to find San Francisco Bay Area to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area 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 Bay Area.

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

Certainly. Search results for flights to London from San Francisco Bay Area shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for San Francisco Bay Area to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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