HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$562+ Cheap flights from San Diego (SAN) to London, ON (YXU)

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YXU
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 October 10, 2025.

This United Airlines deal was found by Cheapflights users on 10/9. 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 10/234:07 pmSAN - YXU
2 stops14h 10mUnited Airlines
Sat 11/85:15 amYXU - SAN
1 stop9h 38mUnited Airlines
Deal found 10/9$629
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 10/256:15 amSAN - YXU
2 stops12h 12mUnited Airlines
Sat 11/85:15 amYXU - SAN
1 stop9h 38mUnited Airlines
Deal found 10/9$650
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/231:59 pmSAN - YXU
2 stops16h 18mUnited Airlines
Tue 11/45:15 amYXU - SAN
1 stop9h 38mUnited Airlines
Deal found 10/9$655
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/231:59 pmSAN - YXU
2 stops16h 18mUnited Airlines
Sun 11/25:15 amYXU - SAN
2 stops18h 39mUnited Airlines
Deal found 10/9$671
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 10/256:15 amSAN - YXU
2 stops12h 12mUnited Airlines
Tue 11/45:15 amYXU - SAN
1 stop9h 38mUnited Airlines
Deal found 10/9$677
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 10/256:15 amSAN - YXU
2 stops12h 12mUnited Airlines
Wed 11/55:15 amYXU - SAN
2 stops16h 09mUnited Airlines
Deal found 10/9$692
This WestJet deal was found by Cheapflights users on 10/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:05 pmSAN - YXU
1 stop12h 07mWestJet
Sun 11/28:10 pmYXU - SAN
1 stop18h 35mWestJet
Deal found 10/9$728
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 10/246:00 pmSAN - YXU
3 stops24h 27mUnited Airlines
Sat 11/85:15 amYXU - SAN
1 stop9h 38mUnited Airlines
Deal found 10/9$743
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 10/246:00 pmSAN - YXU
3 stops24h 27mUnited Airlines
Wed 11/55:15 amYXU - SAN
1 stop9h 38mUnited Airlines
Deal found 10/9$770

Cheap 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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$562
(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
Search Deals

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 October 10, 2025.
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

San Diego

Fly to

London

Route

Depart

Return

Price

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 2/19

6:10 pm-8:46 am

2 stops11h 36m

London

Mon 2/23

5:15 am-11:28 am

1 stop9h 13m

$562

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 2/19

6:15 am-9:21 pm

2 stops12h 06m

London

Mon 2/23

9:25 am-12:49 pm

2 stops30h 24m

$627

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 10/23

4:07 pm-9:17 am

2 stops14h 10m

London

Sat 11/8

5:15 am-11:53 am

1 stop9h 38m

$629

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Sat 10/25

6:15 am-9:27 pm

2 stops12h 12m

London

Sat 11/8

5:15 am-11:53 am

1 stop9h 38m

$650

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 10/23

6:15 am-9:17 am

2 stops24h 02m

London

Wed 11/5

9:25 am-6:50 pm

2 stops12h 25m

$671

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 10/23

1:59 pm-9:17 am

2 stops16h 18m

London

Tue 11/4

5:15 am-3:28 pm

2 stops13h 13m

$671

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 10/23

8:00 am-9:17 am

2 stops22h 17m

London

Thu 11/6

5:15 am-4:02 pm

2 stops13h 47m

$671

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/7

Compare providers for flights from San Diego to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to London in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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, December is the cheapest month in which you can book a flight from San Diego to London, Ontario (average of $19). Flying from San Diego to London, Ontario in September is currently the most expensive (average of $244). 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 11h 36m. Fly via Air Canada or United Airlines 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, December is the cheapest month in which you can book a flight from San Diego to London, Ontario (average of $19). Flying from San Diego to London, Ontario in September is currently the most expensive (average of $244). 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 London?

Book flights to London if you plan to visit one of these locations
Grand Bend

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to London

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Pearson Intl flights
San Francisco to Pearson Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Los Angeles to Toronto Island flights
San Francisco to Pierre Elliott Trudeau Intl flights
Los Angeles to Hamilton flights
San Diego to Pearson Intl flights
San Francisco to Toronto Island flights
Santa Ana to Pearson Intl flights
Ontario to Pearson Intl flights
Las Vegas to Pearson Intl flights
Los Angeles to Region of Waterloo Intl flights
San Jose to Pearson Intl flights
Medford to Pearson Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Sacramento to Pearson Intl flights
Ontario to Pierre Elliott Trudeau Intl flights
San Francisco to Hamilton flights
Oakland to Pearson Intl flights
San Francisco to Region of Waterloo Intl flights
Fresno to Pearson Intl flights
Reno to Pearson Intl flights
Palm Springs to Pearson Intl flights
San Diego to Toronto Island flights
San Francisco to Ottawa flights
San Jose to Pierre Elliott Trudeau Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Santa Ana to Hamilton flights
Burbank to Pearson Intl flights
Los Angeles to Ottawa flights
Las Vegas to Toronto Island flights
Oakland to Pierre Elliott Trudeau Intl flights
Ontario to Ottawa flights
San Jose to Hamilton flights
Santa Ana to Pierre Elliott Trudeau Intl flights
San Jose to Ottawa flights
Santa Ana to Ottawa flights
Burbank to Pierre Elliott Trudeau Intl flights
San Diego to Hamilton flights
Palm Springs to Pierre Elliott Trudeau Intl flights
San Diego to Ottawa flights
Sacramento to Pierre Elliott Trudeau Intl flights
Las Vegas to Hamilton flights
San Diego to Region of Waterloo Intl flights
Burbank to Ottawa flights
Long Beach to Pearson Intl flights
Las Vegas to Ottawa flights
San Jose to Toronto Island flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.