Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London, Ontario to San Diego from $223

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to San Diego departing on 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London, Ontario to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
5:55 pm - 2:10 pm
YXU
-
SAN
23h 15m
1 stop
WestJet Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
$380WestJet
Wed, May 6 - Fri, May 8
Delta Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
Delta Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
$401Delta
Wed, May 6 - Fri, May 8
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
WestJet Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
$423WestJet
Sat, May 2 - Sat, May 9
Air Canada Logo
5:40 am - 12:18 pm
YXU
-
SAN
9h 38m
1 stop
Air Canada Logo
6:32 am - 8:53 am
SAN
-
YXU
23h 21m
2 stops
$444Air Canada
Wed, May 6 - Fri, May 8
Air Canada Logo
9:30 am - 6:41 pm
YXU
-
SAN
12h 11m
2 stops
Air Canada Logo
10:40 pm - 9:38 pm
SAN
-
YXU
19h 58m
2 stops
$450Air Canada
Wed, May 6 - Fri, May 8
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
WestJet Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
$502WestJet
Wed, May 6 - Fri, May 8
Delta Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
Delta Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
$528Delta
Wed, May 6 - Fri, May 8
United Airlines Logo
5:40 am - 12:18 pm
YXU
-
SAN
9h 38m
1 stop
United Airlines Logo
10:40 pm - 9:38 pm
SAN
-
YXU
19h 58m
2 stops
$541United Airlines
Wed, May 6 - Fri, May 8
United Airlines Logo
5:40 am - 12:18 pm
YXU
-
SAN
9h 38m
1 stop
United Airlines Logo
7:40 pm - 5:33 pm
SAN
-
YXU
18h 53m
3 stops
$542United Airlines
Wed, May 6 - Fri, May 8
United Airlines Logo
9:30 am - 10:37 pm
YXU
-
SAN
16h 07m
3 stops
United Airlines Logo
10:40 pm - 9:38 pm
SAN
-
YXU
19h 58m
2 stops
$547United Airlines
Sat, May 2 - Sat, May 9

WestJet flights from London, Ontario to San Diego

Our best WestJet deals on London, Ontario to San Diego flight tickets
WestJet
May 6
YXU5:55 pmLondon
23h 15m
1 stop
SAN2:10 pmSan Diego
May 8
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$380
WestJet
May 2
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
May 9
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$423
WestJet
May 6
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
May 8
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$502

Delta flights from London, Ontario to San Diego

Our best Delta deals on London, Ontario to San Diego flight tickets
Delta
May 6
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
May 8
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$401
Delta
May 6
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
May 8
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$528

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario 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, momondo users made 832,500 searches. Data last updated March 19, 2026.
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

Cheapest round-trip

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

5:55 pm-2:10 pm

1 stop23h 15m

San Diego

Fri 5/8

3:30 pm-5:20 am

1 stop10h 50m

$380
Quickest round-trip

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Fri 5/8

3:30 pm-5:20 am

1 stop10h 50m

$401

LondonSan Diego

YXU - SAN

YXUSAN

London

Sat 5/2

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Sat 5/9

3:30 pm-5:20 am

1 stop10h 50m

$423

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

5:40 am-12:18 pm

1 stop9h 38m

San Diego

Fri 5/8

6:32 am-8:53 am

2 stops23h 21m

$444

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

9:30 am-6:41 pm

2 stops12h 11m

San Diego

Fri 5/8

10:40 pm-9:38 pm

2 stops19h 58m

$450

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Fri 5/8

3:30 pm-5:20 am

1 stop10h 50m

$502

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Fri 5/8

3:30 pm-5:20 am

1 stop10h 50m

$528

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

5:40 am-12:18 pm

1 stop9h 38m

San Diego

Fri 5/8

10:40 pm-9:38 pm

2 stops19h 58m

$541

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 5/6

5:40 am-12:18 pm

1 stop9h 38m

San Diego

Fri 5/8

7:40 pm-5:33 pm

3 stops18h 53m

$542

LondonSan Diego

YXU - SAN

YXUSAN

London

Sat 5/2

9:30 am-10:37 pm

3 stops16h 07m

San Diego

Sat 5/9

10:40 pm-9:38 pm

2 stops19h 58m

$547

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to San Diego from

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

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

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

What airlines fly to San Diego?

Air Canada, United Airlines and Porter 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 61% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 5 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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

11h 00m

Direct flights

None
The fastest flight from London, Ontario to San Diego takes 11h 00m
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?

    London and San Diego are 2064.3 mi apart from one another. A reasonable flight in good conditions will take 11h 00m.

  • 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 are updated daily.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Poway
San Ysidro
Imperial Beach
La Mesa
Borrego Springs
Alpine
Santee
Lemon Grove

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to San Diego. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to San Diego from London which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to San Diego from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to San Diego from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 4/18
Sat 4/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States