Find flights
When to book
Airlines

Cheap flights from San Diego to London, ON from C$ 500

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YXU
2 Apr — 9 Apr1
1 adult

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 28 March 2025.

Round-trip from

C$ 500
Air Canada
  • Air Canada
  • 14/5-21/5
  • 3 total stops
  • 21h 56m total
  • San Diego to London

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 28 March 2025.

Wed 14/55:00 p.m.SAN - YXU
2 stops13h 18mAir Canada
Wed 21/56:15 a.m.YXU - SAN
1 stop8h 38mAir Canada
Deal found 27/3C$ 500
Wed 14/52:05 p.m.SAN - YXU
1 stop12h 09mWestJet
Wed 21/56:00 a.m.YXU - SAN
1 stop10h 20mWestJet
Deal found 27/3C$ 535

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 629,999 searches. Data last updated 28 March 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

Wed 14/5

5:00 p.m.-9:18 a.m.

2 stops13h 18m

London

Wed 21/5

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

1 stop8h 38m

C$ 500

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Wed 14/5

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

1 stop12h 09m

London

Wed 21/5

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

1 stop10h 20m

C$ 535

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

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, October is the cheapest month in which you can book a flight from San Diego to London, Ontario (average of C$ 243). Flying from San Diego to London, Ontario in December is currently the most expensive (average of C$ 478). 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 London by month

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

In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 28 March 2025.

Entertainment

6.1

Overall

7.2

Food

6.2

Comfort

7.0

Boarding

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

Entertainment

6.1

Overall

7.2

Food

6.2

Comfort

7.0

Boarding

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

Entertainment

6.1

Overall

7.2

Food

6.2

Comfort

7.0

Boarding

7.4

Crew

7.9

Reviews

1 / 20
10.0
Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

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.
  • 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, October is the cheapest month in which you can book a flight from San Diego to London, Ontario (average of C$ 243). Flying from San Diego to London, Ontario in December is currently the most expensive (average of C$ 478). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Grand Bend
Port Stanley

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.

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 San Diego to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Diego to London?

Millions of users choose and trust Cheapflights to book the best flight deals from San Diego to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to London from San Diego? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from San Diego to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.