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$301+ Cheap flights from San Diego (SAN) to London, ON (YXU)

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YXU
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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Cheap flight deals from San Diego to London

Cheapest flights from San Diego to London
Explore the most affordable flight options available from San Diego to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.

This Justfly.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/223:30 pm
SAN
-
YXU
1 stop10h 50m
WestJet
Mon 6/296:10 am
YXU
-
SAN
1 stop11h 00m
WestJet
Deal found 4/5$408
This Air Canada deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:15 pm
SAN
-
YXU
1 stop16h 38m
Air Canada
Sat 5/305:10 am
YXU
-
SAN
1 stop10h 08m
Air Canada
Deal found 4/5$459
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:40 pm
SAN
-
YXU
2 stops19h 58m
United Airlines
Sat 5/305:10 am
YXU
-
SAN
1 stop10h 08m
United Airlines
Deal found 4/6$541
This Air Canada deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am
SAN
-
YXU
2 stops11h 40m
Air Canada
Sat 9/265:40 am
YXU
-
SAN
1 stop9h 36m
Air Canada
Deal found 4/7$544
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:40 pm
SAN
-
YXU
3 stops22h 58m
United Airlines
Wed 5/135:10 am
YXU
-
SAN
1 stop10h 08m
United Airlines
Deal found 4/8$546

Find flight deals from San Diego to London

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$408
(Justfly.com)

One-way from

$301
(Air Canada)
Provider with most accurate pricing for San Diego-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-London flights.
Search Deals
From San Diego to London
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One-way flight from San Diego to London
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego 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 2,558,603 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/29

6:10 am-2:10 pm

1 stop11h 00m

$408

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

1:15 pm-8:53 am

1 stop16h 38m

London

Sat 5/30

5:10 am-12:18 pm

1 stop10h 08m

$459

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Wed 5/6

7:40 pm-9:38 pm

3 stops22h 58m

London

Wed 5/13

5:10 am-12:18 pm

1 stop10h 08m

$546

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

9:05 pm-11:43 am

2 stops11h 38m

London

Sat 5/30

9:30 am-11:54 pm

2 stops17h 24m

$556

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 9/22

1:10 pm-8:55 am

1 stop16h 45m

London

Sat 9/26

5:40 am-12:16 pm

1 stop9h 36m

$560

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/21

1:15 pm-8:53 am

1 stop16h 38m

London

Thu 5/28

5:10 am-12:18 pm

1 stop10h 08m

$566
Cheapest one-way
Quickest one-way

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Sun 7/12

4:15 pm-5:20 am

1 stop10h 05m

$348

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Sun 7/12

6:25 am-5:20 am

3 stops19h 55m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Diego-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-London, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to London

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

What is the cheapest month to book a flight from San Diego to London, Ontario?

Currently, January is the cheapest month in which you can book a flight from San Diego to London, Ontario (average of $88). Flying from San Diego to London, Ontario in September is currently the most expensive (average of $262). 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.

Related info for your journey

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

  • How long is the flight from San Diego to London, Ontario?

    There are many flights that can get you from San Diego to London, Ontario in 10h 50m. Fly via WestJet or Air Canada to get the fastest option. Airlines will cover a distance of 2070 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego 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 Diego to London, Ontario?

    Currently, January is the cheapest month in which you can book a flight from San Diego to London, Ontario (average of $88). Flying from San Diego to London, Ontario in September is currently the most expensive (average of $262). 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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