HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$182+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London to San Diego 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.

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 June 12, 2025.

Round-trip from

$231
(Flightnetwork)

One-way from

$182
(WestJet)
From London to San Diego
Search Deals
One-way flight from 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 June 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/12. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/276:00 amYXU - SAN
1 stop10h 20mWestJet
Sun 8/31:00 pmSAN - YXU
2 stops13h 14mWestJet
Deal found 6/12$231
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/169:45 pmYXU - SAN
2 stops18h 35mMultiple Airlines
Mon 6/235:50 pmSAN - YXU
2 stops32h 24mMultiple Airlines
Deal found 6/9$366

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 June 12, 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

Sun 7/27

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 8/3

1:00 pm-5:14 am

2 stops13h 14m

$231

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 7/27

8:00 pm-12:09 pm

3 stops19h 09m

San Diego

Sun 8/3

9:40 pm-5:14 am

3 stops28h 34m

$612

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 7/27

6:00 am-1:20 pm

1 stop10h 20m

$182

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 7/27

6:15 am-8:40 pm

2 stops17h 25m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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, August is the cheapest month in which you can book a flight from London, Ontario to San Diego (average of $286). Flying from London, Ontario to San Diego in March is currently the most expensive (average of $366). 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.

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 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,868 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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 is the cheapest airline to fly from London, Ontario to San Diego round-trip?

    Currently priced at $231, WestJet will fly you from London, Ontario to San Diego and back. In addition to WestJet, many other airlines offer competitively priced options for your 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, August is the cheapest month in which you can book a flight from London, Ontario to San Diego (average of $286). Flying from London, Ontario to San Diego in March is currently the most expensive (average of $366). 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
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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 London to San Diego

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