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$275+ Cheap flights from London, ON (YXU) to San Diego (SAN)

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SAN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from London to San Diego

Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:00 pm
YXU
-
SAN
1 stop17h 30m
WestJet
Sun 7/122:05 pm
SAN
-
YXU
1 stop12h 07m
WestJet
Deal found 1/28$472
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Wed 7/86:00 am
YXU
-
SAN
1 stop8h 35m
Air Canada
Sun 7/127:00 am
SAN
-
YXU
2 stops11h 40m
Air Canada
Deal found 1/28$513
This Air Canada deal was found by Cheapflights users on 1/29. 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.
Wed 7/86:00 am
YXU
-
SAN
1 stop8h 35m
Air Canada
Mon 7/137:00 am
SAN
-
YXU
2 stops11h 40m
Air Canada
Deal found 1/29$516
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Mon 3/95:40 pm
YXU
-
SAN
2 stops21h 23m
Air Canada
Thu 3/126:05 pm
SAN
-
YXU
2 stops11h 41m
Air Canada
Deal found 1/28$564
This United Airlines deal was found by Cheapflights users on 1/29. 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 7/86:00 am
YXU
-
SAN
1 stop8h 40m
United Airlines
Mon 7/135:42 pm
SAN
-
YXU
3 stops20h 53m
United Airlines
Deal found 1/29$567
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 3/95:10 am
YXU
-
SAN
3 stops18h 08m
United Airlines
Thu 3/128:50 pm
SAN
-
YXU
2 stops8h 56m
United Airlines
Deal found 1/27$569

Find flight deals from London to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to San Diego (SAN). 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$472
(Trip.com)

One-way from

$275
(Air Canada)

Popular in

March

Cheapest in

April

Average price

$394
Provider with most accurate pricing for London-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for London-San Diego flights.
Search Deals
From London to San Diego
Search Deals
One-way flight from London to San Diego
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to San Diego 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 January 29, 2026.
Use the filters below to find and compare flights from London to San Diego that are best for you.

Fly from

London

Fly to

San Diego

Route

Depart

Return

Price

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 7/8

8:00 pm-10:30 am

1 stop17h 30m

San Diego

Sun 7/12

2:05 pm-5:12 am

1 stop12h 07m

$472

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 7/8

6:00 am-11:35 am

1 stop8h 35m

San Diego

Sun 7/12

7:00 am-9:40 pm

2 stops11h 40m

$513

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 7/8

6:00 am-11:35 am

1 stop8h 35m

San Diego

Mon 7/13

7:00 am-9:40 pm

2 stops11h 40m

$516

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 3/9

5:40 pm-12:03 pm

2 stops21h 23m

San Diego

Thu 3/12

6:05 pm-8:46 am

2 stops11h 41m

$564

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 7/8

6:00 am-11:40 am

1 stop8h 40m

San Diego

Mon 7/13

5:42 pm-5:35 pm

3 stops20h 53m

$567

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 3/9

5:10 am-8:18 pm

3 stops18h 08m

San Diego

Thu 3/12

8:50 pm-8:46 am

2 stops8h 56m

$569

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 7/8

9:30 am-8:26 pm

3 stops13h 56m

San Diego

Sun 7/12

10:30 pm-3:00 pm

2 stops13h 30m

$569

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 7/15

6:00 am-11:40 am

1 stop8h 40m

$275

LondonSan Diego

YXU - SAN

YXUSAN

London

Sat 3/14

9:40 am-7:00 pm

2 stops12h 20m

$308

LondonSan Diego

YXU - SAN

YXUSAN

London

Sat 3/14

5:10 am-8:53 pm

3 stops18h 43m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

  • Most accurate provider: When it comes to deals on London, Ontario-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London, Ontario-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London, Ontario-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London, Ontario-San Diego 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 London, Ontario-San Diego 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 London to San Diego

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

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

Currently, July is the cheapest month in which you can book a flight from London, Ontario to San Diego (average of $96). Flying from London, Ontario to San Diego in November is currently the most expensive (average of $259). 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 London to San Diego. 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 London, Ontario to San Diego?

    A quick flight from London, Ontario to San Diego can take about 8h 35m. WestJet provides one of the quickest options available for as low as $513. The distance from London, Ontario to San Diego is about 2070 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from London, Ontario to San Diego (average of $96). Flying from London, Ontario to San Diego in November is currently the most expensive (average of $259). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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