What is the cheapest airline that flies from London to San Diego?

Air Canada and United Airlines are the most popular carriers operating from London to San Diego

Which airlines fly to San Diego?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Diego from London, Ontario according to our data. Air Canada is the first choice among our users, with 46% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 7 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Airport to San Diego Airport?

Prices for flights from London Airport to San Diego Airport were last updated today.

How many operators does momondo search for flights from London Airport to San Diego Airport?

The number of operators available for flights from London Airport to San Diego Airport is 2 as of December 2025.

How old do you have to be to fly from London Airport to San Diego Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 298 Cheap Flights from London to San Diego in 2025/26

1 adult

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Find the cheapest flights from London, Ontario to San Diego

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 p.m. - 11:07 p.m.

YXU

SAN

29h 57m3 stops

1:35 p.m. - 6:34 a.m.

SAN

YXU

13h 59m2 stops

C$ 440Multiple Airlines

Mon, 12 Jan - Wed, 14 Jan

8:10 p.m. - 11:07 p.m.

YXU

SAN

29h 57m3 stops

7:10 a.m. - 6:34 a.m.

SAN

YXU

20h 24m3 stops

C$ 528Multiple Airlines

Mon, 12 Jan - Wed, 14 Jan

5:40 p.m. - 11:48 a.m.

YXU

SAN

21h 08m2 stops

6:55 p.m. - 5:05 p.m.

SAN

YXU

19h 10m2 stops

C$ 597United Airlines

Mon, 12 Jan - Wed, 14 Jan

5:40 p.m. - 11:48 a.m.

YXU

SAN

21h 08m2 stops

12:40 p.m. - 8:46 a.m.

SAN

YXU

17h 06m1 stop

C$ 646United Airlines

Mon, 12 Jan - Wed, 14 Jan

5:10 a.m. - 6:36 p.m.

YXU

SAN

16h 26m2 stops

8:37 p.m. - 8:46 a.m.

SAN

YXU

9h 09m2 stops

C$ 679United Airlines

Sun, 11 Jan - Tue, 13 Jan

5:40 p.m. - 9:40 a.m.

YXU

SAN

19h 00m2 stops

6:15 a.m. - 9:21 p.m.

SAN

YXU

12h 06m2 stops

C$ 685Air Canada

Sun, 11 Jan - Tue, 13 Jan

5:40 p.m. - 9:40 a.m.

YXU

SAN

19h 00m2 stops

12:40 p.m. - 8:46 a.m.

SAN

YXU

17h 06m1 stop

C$ 729Air Canada

Sun, 11 Jan - Tue, 13 Jan

5:40 p.m. - 9:40 a.m.

YXU

SAN

19h 00m2 stops

12:40 p.m. - 8:46 a.m.

SAN

YXU

17h 06m1 stop

C$ 734Air Canada

Sun, 11 Jan - Tue, 13 Jan

5:10 a.m. - 11:53 a.m.

YXU

SAN

9h 43m1 stop

12:40 p.m. - 8:46 a.m.

SAN

YXU

17h 06m1 stop

C$ 853Air Canada

Sun, 11 Jan - Tue, 13 Jan

5:10 a.m. - 11:53 a.m.

YXU

SAN

9h 43m1 stop

12:40 p.m. - 8:46 a.m.

SAN

YXU

17h 06m1 stop

C$ 858Air Canada

Sun, 11 Jan - Tue, 13 Jan

United Airlines flights from London, Ontario to San Diego

Our best United Airlines deals on London, Ontario to San Diego flight tickets

United Airlines

3 Mar

YXU9:25 a.m.London

14h 24m

3 stops

SAN8:49 p.m.San Diego

17 Mar

SAN7:00 a.m.San Diego

11h 21m

2 stops

YXU9:21 p.m.London

C$ 562

Find similar

United Airlines

12 Jan

YXU5:40 p.m.London

21h 08m

2 stops

SAN11:48 a.m.San Diego

14 Jan

SAN6:55 p.m.San Diego

19h 10m

2 stops

YXU5:05 p.m.London

C$ 597

Find similar

United Airlines

12 Jan

YXU5:40 p.m.London

21h 08m

2 stops

SAN11:48 a.m.San Diego

14 Jan

SAN12:40 p.m.San Diego

17h 06m

1 stop

YXU8:46 a.m.London

C$ 646

Find similar

Air Canada flights from London, Ontario to San Diego

Our best Air Canada deals on London, Ontario to San Diego flight tickets

Air Canada

3 Mar

YXU5:10 a.m.London

9h 43m

1 stop

SAN11:53 a.m.San Diego

17 Mar

SAN12:40 p.m.San Diego

17h 06m

1 stop

YXU8:46 a.m.London

C$ 422

Find similar

Air Canada

3 Mar

YXU5:10 a.m.London

9h 43m

1 stop

SAN11:53 a.m.San Diego

17 Mar

SAN12:45 p.m.San Diego

17h 01m

2 stops

YXU8:46 a.m.London

C$ 423

Find similar

Air Canada

3 Mar

YXU5:10 a.m.London

15h 14m

2 stops

SAN5:24 p.m.San Diego

17 Mar

SAN12:45 p.m.San Diego

17h 01m

2 stops

YXU8:46 a.m.London

C$ 430

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 12/1

8:10 p.m.-11:07 p.m.

3 stops29h 57m

San Diego

Wed 14/1

1:35 p.m.-6:34 a.m.

2 stops13h 59m

C$ 440

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 12/1

8:10 p.m.-11:07 p.m.

3 stops29h 57m

San Diego

Wed 14/1

7:10 a.m.-6:34 a.m.

3 stops20h 24m

C$ 528

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 12/1

5:40 p.m.-11:48 a.m.

2 stops21h 08m

San Diego

Wed 14/1

6:55 p.m.-5:05 p.m.

2 stops19h 10m

C$ 597

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 12/1

5:40 p.m.-11:48 a.m.

2 stops21h 08m

San Diego

Wed 14/1

12:40 p.m.-8:46 a.m.

1 stop17h 06m

C$ 646

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 11/1

5:10 a.m.-6:36 p.m.

2 stops16h 26m

San Diego

Tue 13/1

8:37 p.m.-8:46 a.m.

2 stops9h 09m

C$ 679

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 11/1

5:40 p.m.-9:40 a.m.

2 stops19h 00m

San Diego

Tue 13/1

6:15 a.m.-9:21 p.m.

2 stops12h 06m

C$ 685

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 11/1

5:40 p.m.-9:40 a.m.

2 stops19h 00m

San Diego

Tue 13/1

12:40 p.m.-8:46 a.m.

1 stop17h 06m

C$ 729

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 11/1

5:40 p.m.-9:40 a.m.

2 stops19h 00m

San Diego

Tue 13/1

12:40 p.m.-8:46 a.m.

1 stop17h 06m

C$ 734

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 11/1

5:10 a.m.-11:53 a.m.

1 stop9h 43m

San Diego

Tue 13/1

12:40 p.m.-8:46 a.m.

1 stop17h 06m

C$ 853

LondonSan Diego

YXU - SAN

YXUSAN

London

Sun 11/1

5:10 a.m.-11:53 a.m.

1 stop9h 43m

San Diego

Tue 13/1

12:40 p.m.-8:46 a.m.

1 stop17h 06m

C$ 858

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart on your flight to San Diego is on a Sunday when prices can be found for as low as C$ 537. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Saturday is C$ 881.

Can stopping save me money on London, Ontario to San Diego flights?

You could potentially save up to 15% on your flight if you consider stops on a London, Ontario to San Diego flight.

When to book flights from London, Ontario to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from London, Ontario to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap London, Ontario to San Diego (YXU to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to San Diego

Fastest flight time	9h 43m
Direct flights	None

The fastest flight from London, Ontario to San Diego takes 9h 43m

There are no direct flights from London, Ontario to San Diego. There are no popular flight routes from London, Ontario to San Diego.

Search flight deals

How far is London to San Diego by plane?
There are 3322.2 km between London and San Diego. Typically, this will take 9h 43m by plane in normal conditions.
When did momondo last update prices for flights from London Airport to San Diego Airport?
Prices for flights from London Airport to San Diego Airport were last updated today.
How many operators does momondo search for flights from London Airport to San Diego Airport?
The number of operators available for flights from London Airport to San Diego Airport is 2 as of December 2025.
How old do you have to be to fly from London Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London, Ontario to San Diego?
Based on momondo bookings for flights between London, Ontario and San Diego, the leading airline is United Airlines, making up 69% of the total bookings. Other popular airlines include Air Canada with 31%.

Best airlines flying from London, Ontario to San Diego

Compare and see reviews for airlines that fly from London, Ontario to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 324	Free Cancellation	Rating 7.1 10,534 reviews		Search Air Canada flights
United Airlines	PriceFrom C$ 349	Free Cancellation	Rating 7.4 9,092 reviews		Search United Airlines flights

El Cajon

Borrego Springs

Coronado

Chula Vista

Why use momondo?

Why should I use momondo to find a flight deal from London to San Diego?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to San Diego. momondo saves you time and could save you money on your trip.

Can I find flights from London to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from London to San Diego?

Once all potential London to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to San Diego right now. Can momondo alert me if prices change?

Price alerts on flights to San Diego from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.