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Cheap flights from London, ON to San Diego from C$ 473

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SAN
31 Mar — 7 Apr1
1 adult

Cheap 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 26 March 2025.

Round-trip from

C$ 473
United Airlines
  • United Airlines
  • 20/5-23/5
  • 3 total stops
  • 22h 21m total
  • London to San Diego
Search Deals

Find 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 26 March 2025.

Tue 20/56:15 a.m.YXU - SAN
1 stop8h 38mUnited Airlines
Fri 23/510:20 p.m.SAN - YXU
2 stops13h 43mUnited Airlines
Deal found 25/3C$ 473
Tue 20/56:00 a.m.YXU - SAN
1 stop10h 20mDelta
Fri 23/52:05 p.m.SAN - YXU
1 stop12h 09mDelta
Deal found 25/3C$ 645
Fri 16/56:15 a.m.YXU - SAN
1 stop8h 38mAir Canada
Mon 19/510:10 p.m.SAN - YXU
2 stops13h 48mAir Canada
Deal found 24/3C$ 788
Fri 16/56:00 a.m.YXU - SAN
1 stop10h 20mWestJet
Mon 19/52:05 p.m.SAN - YXU
1 stop26h 04mWestJet
Deal found 24/3C$ 1,293

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 26 March 2025.
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

Tue 20/5

6:15 a.m.-11:53 a.m.

1 stop8h 38m

San Diego

Fri 23/5

10:20 p.m.-3:03 p.m.

2 stops13h 43m

C$ 473

LondonSan Diego

YXU - SAN

YXUSAN

London

Tue 20/5

6:00 a.m.-1:20 p.m.

1 stop10h 20m

San Diego

Fri 23/5

2:05 p.m.-5:14 a.m.

1 stop12h 09m

C$ 645

LondonSan Diego

YXU - SAN

YXUSAN

London

Fri 16/5

6:15 a.m.-11:53 a.m.

1 stop8h 38m

San Diego

Mon 19/5

10:10 p.m.-2:58 p.m.

2 stops13h 48m

C$ 788

LondonSan Diego

YXU - SAN

YXUSAN

London

Fri 16/5

6:00 a.m.-1:20 p.m.

1 stop10h 20m

San Diego

Mon 19/5

2:05 p.m.-7:09 p.m.

1 stop26h 04m

C$ 1,293

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

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, January is the cheapest month in which you can book a flight from London, Ontario to San Diego (average of C$ 300). Flying from London, Ontario to San Diego in July is currently the most expensive (average of C$ 412). 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.

What is the cheapest time of day to fly from YXU to SAN?

Find hourly flight availability from London to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 March 2025.

When flying from London, Ontario to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 26 March 2025.
Delta
8.0
Very good
7,891 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
8,960 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 United Airlines. Our recent data shows that you can find tickets from as low as C$ 473 on this airline. Additional options worth looking into are Delta and Air Canada, starting at C$ 645 and C$ 788 round-trip.

  • 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, January is the cheapest month in which you can book a flight from London, Ontario to San Diego (average of C$ 300). Flying from London, Ontario to San Diego in July is currently the most expensive (average of C$ 412). 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 London?

Book flights to London if you plan to visit one of these locations
El Cajon
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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 363AverageC$ 440FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 410AverageC$ 675FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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