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Cheap flights from London, Ontario to San Diego from $353

This is the cheapest round-trip 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 9/9. 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

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
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
$353WestJet
Wed, Sep 9 - Sat, Sep 12
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
$354WestJet
Wed, Sep 9 - Sat, Sep 12
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
$394WestJet
Wed, Sep 9 - Sat, Sep 12
Air Canada Logo
6:20 pm - 8:36 pm
YXU
-
SAN
29h 16m
2 stops
Air Canada Logo
7:00 am - 9:40 pm
SAN
-
YXU
11h 40m
2 stops
$442Air Canada
Wed, Sep 9 - Sat, Sep 12
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
WestJet Logo
5:00 pm - 5:20 am
SAN
-
YXU
9h 20m
1 stop
$447WestJet
Thu, Jul 23 - Thu, Jul 30
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
$458WestJet
Wed, Aug 5 - Mon, Aug 10
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
WestJet Logo
3:30 pm - 1:50 pm
SAN
-
YXU
19h 20m
2 stops
$482WestJet
Thu, Jul 23 - Thu, Jul 30
Air Canada Logo
6:20 pm - 8:36 pm
YXU
-
SAN
29h 16m
2 stops
Air Canada Logo
7:00 am - 9:40 pm
SAN
-
YXU
11h 40m
2 stops
$483Air Canada
Wed, Sep 9 - Sat, Sep 12
WestJet Logo
5:55 pm - 2:10 pm
YXU
-
SAN
23h 15m
1 stop
WestJet Logo
3:30 pm - 1:50 pm
SAN
-
YXU
19h 20m
2 stops
$485WestJet
Wed, Aug 5 - Mon, Aug 10
United Airlines Logo
3:30 pm - 10:41 pm
YXU
-
SAN
10h 11m
2 stops
United Airlines Logo
7:41 pm - 2:55 pm
SAN
-
YXU
16h 14m
3 stops
$489United Airlines
Mon, Sep 28 - Tue, Sep 29

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WestJet flights from London, Ontario to San Diego

Our best WestJet deals on London, Ontario to San Diego flight tickets
WestJet
Sep 9
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
Sep 12
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$353
WestJet
Sep 9
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
Sep 12
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$354
WestJet
Sep 9
YXU6:10 amLondon
11h 00m
1 stop
SAN2:10 pmSan Diego
Sep 12
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
$394

Air Canada flights from London, Ontario to San Diego

Our best Air Canada deals on London, Ontario to San Diego flight tickets
Air Canada
Sep 9
YXU6:20 pmLondon
29h 16m
2 stops
SAN8:36 pmSan Diego
Sep 12
SAN7:00 amSan Diego
11h 40m
2 stops
YXU9:40 pmLondon
$442
Air Canada
Sep 9
YXU6:20 pmLondon
29h 16m
2 stops
SAN8:36 pmSan Diego
Sep 12
SAN7:00 amSan Diego
11h 40m
2 stops
YXU9:40 pmLondon
$483
Air Canada
Sep 9
YXU5:40 amLondon
9h 36m
1 stop
SAN12:16 pmSan Diego
Sep 12
SAN7:00 amSan Diego
11h 40m
2 stops
YXU9:40 pmLondon
$495

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 June 18, 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 9/9

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Sat 9/12

3:30 pm-5:20 am

1 stop10h 50m

$353

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 9/9

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Sat 9/12

3:30 pm-5:20 am

1 stop10h 50m

$354

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 9/9

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Sat 9/12

3:30 pm-5:20 am

1 stop10h 50m

$394

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 9/9

6:20 pm-8:36 pm

2 stops29h 16m

San Diego

Sat 9/12

7:00 am-9:40 pm

2 stops11h 40m

$442
Quickest round-trip

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 7/23

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Thu 7/30

5:00 pm-5:20 am

1 stop9h 20m

$447

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 8/5

5:55 pm-2:10 pm

1 stop23h 15m

San Diego

Mon 8/10

3:30 pm-5:20 am

1 stop10h 50m

$458

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 7/23

6:10 am-2:10 pm

1 stop11h 00m

San Diego

Thu 7/30

3:30 pm-1:50 pm

2 stops19h 20m

$482

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 9/9

6:20 pm-8:36 pm

2 stops29h 16m

San Diego

Sat 9/12

7:00 am-9:40 pm

2 stops11h 40m

$483

LondonSan Diego

YXU - SAN

YXUSAN

London

Wed 8/5

5:55 pm-2:10 pm

1 stop23h 15m

San Diego

Mon 8/10

3:30 pm-1:50 pm

2 stops19h 20m

$485

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 9/28

3:30 pm-10:41 pm

2 stops10h 11m

San Diego

Tue 9/29

7:41 pm-2:55 pm

3 stops16h 14m

$489

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 airlines fly to San Diego?

Air Canada, United Airlines and Delta 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 60% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 6 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 23m

Direct flights

None
The fastest flight from London, Ontario to San Diego takes 11h 23m
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

Frequently asked questions about flying from London, Ontario to San Diego

  • 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 23m.

  • 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
Chula Vista
Coronado
El Cajon
Julian
National City
Poway
La Mesa
San Ysidro
Borrego Springs
Imperial Beach
Lemon Grove
Santee
Alpine

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.

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