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Cheap flights from London, ON to San Diego from C$ 289

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 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SAN
19 May — 26 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to San Diego

Enter your travel dates to find the best prices.

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 19 April 2026.

Fri 29/55:10 a.m.
YXU
-
SAN
1 stop10h 08m
Multiple Airlines
Fri 5/63:30 p.m.
SAN
-
YXU
1 stop10h 50m
Multiple Airlines
Deal found 14/4C$ 519
Tue 14/76:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Thu 23/75:00 p.m.
SAN
-
YXU
1 stop9h 20m
WestJet
Deal found 16/4C$ 539
Fri 17/76:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Mon 20/73:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 16/4C$ 557
Thu 16/76:10 a.m.
YXU
-
SAN
1 stop12h 45m
WestJet
Tue 21/73:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 16/4C$ 586
Mon 13/76:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Mon 20/73:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 16/4C$ 591
Sat 18/75:55 p.m.
YXU
-
SAN
1 stop23h 15m
WestJet
Thu 23/73:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 16/4C$ 649
Thu 16/76:10 a.m.
YXU
-
SAN
1 stop11h 00m
WestJet
Sun 19/73:30 p.m.
SAN
-
YXU
1 stop10h 50m
WestJet
Deal found 16/4C$ 653
Thu 16/79:30 a.m.
YXU
-
SAN
2 stops14h 09m
Air Canada
Mon 20/77:00 a.m.
SAN
-
YXU
2 stops11h 40m
Air Canada
Deal found 16/4C$ 680
Thu 16/75:10 a.m.
YXU
-
SAN
1 stop9h 25m
Air Canada
Tue 21/77:00 a.m.
SAN
-
YXU
2 stops11h 40m
Air Canada
Deal found 16/4C$ 686

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 19 April 2026.

Round-trip from

C$ 519

One-way from

C$ 289
WestJet
  • WestJet
  • 29/5-5/6
  • 2 total stops
  • 20h 58m total
  • London to San Diego
Search Deals
Air Canada
  • Air Canada
  • 29/5
  • 1 total stop
  • 10h 08m total
  • London to San Diego
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 629,999 searches. Data last updated 19 April 2026.
Use the filters below to find and compare flights from London to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonSan Diego

YXU - SAN

YXUSAN

London

Fri 29/5

5:10 a.m.-12:18 p.m.

1 stop10h 08m

San Diego

Fri 5/6

3:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 519

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 16/7

5:10 a.m.-11:35 a.m.

1 stop9h 25m

San Diego

Fri 24/7

10:40 p.m.-2:55 p.m.

2 stops13h 15m

C$ 708

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 16/7

5:10 a.m.-11:35 a.m.

1 stop9h 25m

San Diego

Wed 22/7

7:41 p.m.-2:55 p.m.

3 stops16h 14m

C$ 708

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 9/7

9:30 a.m.-10:34 p.m.

2 stops16h 04m

San Diego

Sat 11/7

6:40 a.m.-9:40 p.m.

2 stops12h 00m

C$ 715

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 16/7

5:10 a.m.-3:25 p.m.

2 stops13h 15m

San Diego

Sun 19/7

10:40 p.m.-2:55 p.m.

2 stops13h 15m

C$ 715

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 15/7

12:20 p.m.-8:23 p.m.

2 stops11h 03m

San Diego

Thu 23/7

6:40 a.m.-9:40 p.m.

2 stops12h 00m

C$ 715

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 9/7

9:30 a.m.-8:23 p.m.

2 stops13h 53m

San Diego

Sat 11/7

10:40 p.m.-9:40 p.m.

2 stops20h 00m

C$ 716
Cheapest one-way
Quickest one-way

LondonSan Diego

YXU - SAN

YXUSAN

London

Fri 29/5

5:10 a.m.-12:18 p.m.

1 stop10h 08m

C$ 289

LondonSan Diego

YXU - SAN

YXUSAN

London

Fri 29/5

5:10 a.m.-12:30 a.m.

3 stops22h 20m

C$ 508

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Sorted by cheapest first

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.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated 19 April 2026.
Check out reviews from past customers who have flown with United Airlines and Air Canada from London to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,605 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,605 reviews
United Airlines
7.4
Good
9,605 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,939 reviews
United Airlines
7.4
Good
9,605 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 9h 25m. United Airlines provides one of the quickest options available for as low as C$ 708. London, Ontario and San Diego are separated by a distance of 3331 km.

  • What are the cheapest airlines flying from London, Ontario to San Diego round-trip?

    Our cheapest airline available from London, Ontario to San Diego is Air Canada. Our recent data shows that you can find tickets from as low as C$ 322 on this airline. An additional option worth looking into is United Airlines, starting at C$ 410.

  • 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.

See more FAQs

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs

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Top 2 airlines flying from London to San Diego

Discover the top 2 airlines that operate flights from London to San Diego. 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 629,999 searches. Data last updated 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 322AverageC$ 505FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 410AverageC$ 411FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 London to San Diego?

Cheapflights makes it easy to find London to San Diego 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 London to San Diego?

Cheapflights helps you find that perfect flight to San Diego from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from London to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to San Diego 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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