How long is the flight from London, Ontario to San Diego?

A quick flight from London, Ontario to San Diego can take about 11h 35m. Air Canada provides one of the quickest options available for as low as C$ 569. London, Ontario and San Diego are separated by a distance of 3331 km. This flight may include one or multiple stops.

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$ 326 on this airline. An additional option worth looking into is United Airlines, starting at C$ 417.

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.

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).

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

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.

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.

C$ 298+ Cheap Flights from London, ON to San Diego

Cheap flight deals from London to San Diego

Enter your travel dates to find the best prices.

Cheapest

Best

One-way

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 August 2026.

Wed 21/1010:05 a.m. -

2 stops11h 35m

Tue 27/107:05 a.m. -

2 stops11h 47m

Deal found 17/8C$ 569

Tue 27/105:30 a.m. -

2 stops13h 24m

Fri 30/107:41 p.m. -

3 stops16h 06m

Deal found 17/8C$ 594

Mon 5/105:40 a.m. -

2 stops17h 56m

Tue 6/107:00 a.m. -

2 stops11h 40m

Deal found 14/8C$ 625

Mon 5/106:10 a.m. -

1 stop11h 00m

Tue 6/103:30 p.m. -

1 stop10h 50m

Deal found 14/8C$ 630

Wed 21/105:40 a.m. -

3 stops18h 05m

Tue 27/109:45 p.m. -

2 stops14h 02m

Deal found 17/8C$ 637

Find flight deals from London to San Diego

Round-trip from	C$ 569
One-way from	C$ 298

Air Canada
21/10-27/10
4 total stops
23h 22m total
London to San Diego

Search Deals

30/9
2 total stops
15h 09m total
London to San Diego

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Tue 27/10

5:30 a.m.-6:34 p.m.

2 stops16h 04m

San Diego

Fri 30/10

10:30 p.m.-2:47 p.m.

2 stops13h 17m

C$ 594

Quickest round-trip

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Wed 21/10

5:40 a.m.-12:16 p.m.

1 stop9h 36m

San Diego

Tue 27/10

7:05 a.m.-9:52 p.m.

2 stops11h 47m

C$ 618

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Mon 5/10

5:40 a.m.-8:36 p.m.

2 stops17h 56m

San Diego

Tue 6/10

7:00 a.m.-9:40 p.m.

2 stops11h 40m

C$ 625

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Mon 5/10

6:10 a.m.-2:10 p.m.

1 stop11h 00m

San Diego

Tue 6/10

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

1 stop10h 50m

C$ 630

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Wed 21/10

5:40 a.m.-8:45 p.m.

3 stops18h 05m

San Diego

Tue 27/10

9:45 p.m.-2:47 p.m.

2 stops14h 02m

C$ 637

Cheapest one-way

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Wed 30/9

6:10 a.m.-6:19 p.m.

2 stops15h 09m

C$ 298

Quickest one-way

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Wed 30/9

5:40 a.m.-12:16 p.m.

1 stop9h 36m

C$ 486

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/8

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.

YXU-SAN

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

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

10,104 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines

7.4

Good

10,104 reviews

United Airlines

7.4

Good

10,104 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Air Canada

7.1

Good

11,505 reviews

United Airlines

7.4

Good

10,104 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

How long is the flight from London, Ontario to San Diego?
A quick flight from London, Ontario to San Diego can take about 11h 35m. Air Canada provides one of the quickest options available for as low as C$ 569. London, Ontario and San Diego are separated by a distance of 3331 km. This flight may include one or multiple stops.
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$ 326 on this airline. An additional option worth looking into is United Airlines, starting at C$ 417.
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.

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Top 2 airlines flying from London to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 326	AverageC$ 737	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 417	AverageC$ 417	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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.

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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.

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Cheap flights from London, ON to San Diego from C$ 298

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to San Diego

Cheapest flights from London to San DiegoExplore 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 August 2026.

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 August 2026.

Best flights from London to San DiegoDiscover carefully curated flight deals from London to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Discover carefully curated flight deals from London to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

One-way flights from London to San DiegoSearch for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.

Search for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.

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

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.

Reviews of airlines servicing San Diego

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.

Related info for your journey

How long is the flight from London, Ontario to San Diego?

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

Can I find deals for flights from London to San Diego that include hotel bookings?

How can I find direct flights from London to San Diego?

Can I find deals for business class flights from London to San Diego?

Travelling to a place near San Diego?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to San Diego

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Complete your trip

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Direct flights to California

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Search flights from London to San Diego by cabin class

Find flights from London to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and San Diego flights

Browse other London and San Diego flight options. Last updated on 19 August 2026.

Other flights from London

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Top 2 airlines flying from London to San Diego

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

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

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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 August 2026.

Best flights from London to San Diego
Discover carefully curated flight deals from London to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

One-way flights from London to San Diego
Search for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.