Cheap flights from London, Ontario to San Diego from $233

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 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:10 am - 8:18 pm
YXU
-
SAN
18h 08m
3 stops
United Airlines Logo
10:15 pm - 9:21 pm
SAN
-
YXU
20h 06m
2 stops
$414United Airlines
Mon, Mar 9 - Thu, Mar 12
United Airlines Logo
5:10 am - 8:18 pm
YXU
-
SAN
18h 08m
3 stops
United Airlines Logo
10:30 pm - 5:05 pm
SAN
-
YXU
15h 35m
2 stops
$417United Airlines
Mon, Mar 9 - Thu, Mar 12
Air Canada Logo
5:10 am - 11:53 am
YXU
-
SAN
9h 43m
1 stop
Air Canada Logo
6:10 pm - 8:43 am
SAN
-
YXU
11h 33m
2 stops
$513Air Canada
Thu, Apr 16 - Tue, Apr 21
Air Canada Logo
5:40 pm - 11:38 am
YXU
-
SAN
20h 58m
2 stops
Air Canada Logo
12:40 pm - 8:46 am
SAN
-
YXU
17h 06m
1 stop
$549Air Canada
Mon, Mar 9 - Thu, Mar 12
Air Canada Logo
5:10 am - 11:53 am
YXU
-
SAN
9h 43m
1 stop
Air Canada Logo
1:10 pm - 8:43 am
SAN
-
YXU
16h 33m
1 stop
$550Air Canada
Thu, Apr 16 - Tue, Apr 21
Air Canada Logo
9:40 am - 7:00 pm
YXU
-
SAN
12h 20m
2 stops
Air Canada Logo
12:40 pm - 8:46 am
SAN
-
YXU
17h 06m
1 stop
$552Air Canada
Mon, Mar 9 - Thu, Mar 12
Air Canada Logo
5:10 am - 11:53 am
YXU
-
SAN
9h 43m
1 stop
Air Canada Logo
6:20 am - 9:18 pm
SAN
-
YXU
11h 58m
2 stops
$567Air Canada
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
9:25 am - 8:12 pm
YXU
-
SAN
13h 47m
2 stops
United Airlines Logo
8:45 am - 9:18 pm
SAN
-
YXU
9h 33m
2 stops
$572United Airlines
Thu, Apr 16 - Mon, Apr 20
Air Canada Logo
9:25 am - 6:51 pm
YXU
-
SAN
12h 26m
2 stops
Air Canada Logo
6:20 am - 9:18 pm
SAN
-
YXU
11h 58m
2 stops
$573Air Canada
Fri, Apr 17 - Mon, Apr 20

Air Canada flights from London, Ontario to San Diego

Our best Air Canada deals on London, Ontario to San Diego flight tickets
Air Canada
Apr 16
YXU5:10 amLondon
9h 43m
1 stop
SAN11:53 amSan Diego
Apr 21
SAN6:10 pmSan Diego
11h 33m
2 stops
YXU8:43 amLondon
$513
Air Canada
Mar 9
YXU5:40 pmLondon
20h 58m
2 stops
SAN11:38 amSan Diego
Mar 12
SAN12:40 pmSan Diego
17h 06m
1 stop
YXU8:46 amLondon
$549
Air Canada
Apr 16
YXU5:10 amLondon
9h 43m
1 stop
SAN11:53 amSan Diego
Apr 21
SAN1:10 pmSan Diego
16h 33m
1 stop
YXU8:43 amLondon
$550

United Airlines flights from London, Ontario to San Diego

Our best United Airlines deals on London, Ontario to San Diego flight tickets
United Airlines
Mar 9
YXU5:10 amLondon
18h 08m
3 stops
SAN8:18 pmSan Diego
Mar 12
SAN10:15 pmSan Diego
20h 06m
2 stops
YXU9:21 pmLondon
$414
United Airlines
Mar 9
YXU5:10 amLondon
16h 50m
2 stops
SAN7:00 pmSan Diego
Mar 12
SAN10:30 pmSan Diego
15h 35m
2 stops
YXU5:05 pmLondon
$417
United Airlines
Apr 16
YXU9:25 amLondon
13h 47m
2 stops
SAN8:12 pmSan Diego
Apr 20
SAN8:45 amSan Diego
9h 33m
2 stops
YXU9:18 pmLondon
$572

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 February 1, 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

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 3/9

5:10 am-8:18 pm

3 stops18h 08m

San Diego

Thu 3/12

10:15 pm-9:21 pm

2 stops20h 06m

$414

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 3/9

5:10 am-8:18 pm

3 stops18h 08m

San Diego

Thu 3/12

10:30 pm-5:05 pm

2 stops15h 35m

$417

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 4/16

5:10 am-11:53 am

1 stop9h 43m

San Diego

Tue 4/21

6:10 pm-8:43 am

2 stops11h 33m

$513

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 3/9

5:40 pm-11:38 am

2 stops20h 58m

San Diego

Thu 3/12

12:40 pm-8:46 am

1 stop17h 06m

$549

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 4/16

5:10 am-11:53 am

1 stop9h 43m

San Diego

Tue 4/21

1:10 pm-8:43 am

1 stop16h 33m

$550

LondonSan Diego

YXU - SAN

YXUSAN

London

Mon 3/9

9:40 am-7:00 pm

2 stops12h 20m

San Diego

Thu 3/12

12:40 pm-8:46 am

1 stop17h 06m

$552

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 4/16

5:10 am-11:53 am

1 stop9h 43m

San Diego

Sun 4/19

6:20 am-9:18 pm

2 stops11h 58m

$567

LondonSan Diego

YXU - SAN

YXUSAN

London

Thu 4/16

9:25 am-8:12 pm

2 stops13h 47m

San Diego

Mon 4/20

8:45 am-9:18 pm

2 stops9h 33m

$572

LondonSan Diego

YXU - SAN

YXUSAN

London

Fri 4/17

9:25 am-6:51 pm

2 stops12h 26m

San Diego

Mon 4/20

6:20 am-9:18 pm

2 stops11h 58m

$573

LondonSan Diego

YXU - SAN

YXUSAN

London

Tue 3/17

5:10 am-8:19 pm

3 stops18h 09m

$233

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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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?

United Airlines and Air Canada 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 57% 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

18h 08m

Direct flights

None
The fastest flight from London, Ontario to San Diego takes 18h 08m
There are no direct flights from London, Ontario to San Diego. There are no popular flight routes 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 18h 08m.

  • 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
Poway
National City
Imperial Beach
San Ysidro
Borrego Springs
La Mesa
Alpine
Lemon Grove
Santee

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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1 adult
Tue 3/3
Tue 3/10

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