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Cheap flights from San Diego to London from $422

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to London departing on 6/22. 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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0 bags

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Find the cheapest flights from San Diego to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
WestJet Logo
5:55 pm - 2:10 pm
YXU
-
SAN
23h 15m
1 stop
$422WestJet
Mon, Jun 22 - Mon, Jun 29
WestJet Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
WestJet Logo
5:55 pm - 2:10 pm
YXU
-
SAN
23h 15m
1 stop
$436WestJet
Mon, Jun 22 - Mon, Jun 29
WestJet Logo
3:30 pm - 1:50 pm
SAN
-
YXU
19h 20m
2 stops
WestJet Logo
5:55 pm - 2:10 pm
YXU
-
SAN
23h 15m
1 stop
$463WestJet
Mon, Jun 22 - Mon, Jun 29
Air Canada Logo
7:00 am - 9:40 pm
SAN
-
YXU
11h 40m
2 stops
Air Canada Logo
5:40 am - 11:35 am
YXU
-
SAN
8h 55m
1 stop
$495Air Canada
Tue, Aug 18 - Wed, Aug 26
WestJet Logo
3:30 pm - 5:20 am
SAN
-
YXU
10h 50m
1 stop
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
$585WestJet
Mon, Jun 22 - Mon, Jun 29
United Airlines Logo
3:04 pm - 5:45 pm
SAN
-
YXU
23h 41m
3 stops
United Airlines Logo
5:40 am - 11:35 am
YXU
-
SAN
8h 55m
1 stop
$609United Airlines
Tue, Aug 18 - Wed, Aug 26
United Airlines Logo
10:40 pm - 9:40 pm
SAN
-
YXU
20h 00m
2 stops
United Airlines Logo
3:30 pm - 10:10 pm
YXU
-
SAN
9h 40m
2 stops
$619United Airlines
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
3:30 pm - 1:50 pm
SAN
-
YXU
19h 20m
2 stops
Multiple Airlines Logo
5:55 pm - 11:32 pm
YXU
-
SAN
32h 37m
2 stops
$626Multiple Airlines
Mon, Jun 22 - Mon, Jun 29
Air Canada Logo
1:10 pm - 9:20 am
SAN
-
YXU
17h 10m
1 stop
Air Canada Logo
5:40 am - 12:16 pm
YXU
-
SAN
9h 36m
1 stop
$640Air Canada
Sat, Oct 17 - Tue, Oct 20
WestJet Logo
3:30 pm - 1:50 pm
SAN
-
YXU
19h 20m
2 stops
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
$641WestJet
Mon, Jun 22 - Mon, Jun 29

WestJet flights from San Diego to London, Ontario

Our best WestJet deals on San Diego to London, Ontario flight tickets
WestJet
Jun 22
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
Jun 29
YXU5:55 pmLondon
23h 15m
1 stop
SAN2:10 pmSan Diego
$422
WestJet
Jun 22
SAN3:30 pmSan Diego
10h 50m
1 stop
YXU5:20 amLondon
Jun 29
YXU5:55 pmLondon
23h 15m
1 stop
SAN2:10 pmSan Diego
$436
WestJet
Jun 22
SAN3:30 pmSan Diego
19h 20m
2 stops
YXU1:50 pmLondon
Jun 29
YXU5:55 pmLondon
23h 15m
1 stop
SAN2:10 pmSan Diego
$463

United Airlines flights from San Diego to London, Ontario

Our best United Airlines deals on San Diego to London, Ontario flight tickets
United Airlines
Aug 18
SAN3:04 pmSan Diego
23h 41m
3 stops
YXU5:45 pmLondon
Aug 26
YXU5:40 amLondon
8h 55m
1 stop
SAN11:35 amSan Diego
$609
United Airlines
Aug 20
SAN10:40 pmSan Diego
20h 00m
2 stops
YXU9:40 pmLondon
Aug 24
YXU3:30 pmLondon
9h 40m
2 stops
SAN10:10 pmSan Diego
$619
United Airlines
Oct 17
SAN7:41 pmSan Diego
16h 14m
3 stops
YXU2:55 pmLondon
Oct 20
YXU5:40 amLondon
9h 36m
1 stop
SAN12:16 pmSan Diego
$738

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to London, Ontario 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 May 25, 2026.
Use the filters below to find and compare flights from San Diego to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/29

5:55 pm-2:10 pm

1 stop23h 15m

$422

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/29

5:55 pm-2:10 pm

1 stop23h 15m

$436

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-1:50 pm

2 stops19h 20m

London

Mon 6/29

5:55 pm-2:10 pm

1 stop23h 15m

$463
Quickest round-trip

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 8/18

7:00 am-9:40 pm

2 stops11h 40m

London

Wed 8/26

5:40 am-11:35 am

1 stop8h 55m

$495

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/29

6:10 am-2:10 pm

1 stop11h 00m

$585

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Tue 8/18

3:04 pm-5:45 pm

3 stops23h 41m

London

Wed 8/26

5:40 am-11:35 am

1 stop8h 55m

$609

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 8/20

10:40 pm-9:40 pm

2 stops20h 00m

London

Mon 8/24

3:30 pm-10:10 pm

2 stops9h 40m

$619

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-1:50 pm

2 stops19h 20m

London

Mon 6/29

5:55 pm-11:32 pm

2 stops32h 37m

$626

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Sat 10/17

1:10 pm-9:20 am

1 stop17h 10m

London

Tue 10/20

5:40 am-12:16 pm

1 stop9h 36m

$640

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Mon 6/22

3:30 pm-1:50 pm

2 stops19h 20m

London

Mon 6/29

6:10 am-2:10 pm

1 stop11h 00m

$641

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

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

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 London, Ontario?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to London, Ontario from San Diego according to our data. Air Canada is the first choice among our users, with 48% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 5 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from San Diego to London, Ontario

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

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

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

Fastest flight time

11h 40m

Direct flights

None
The fastest flight from San Diego to London, Ontario takes 11h 40m
There are no direct flights from San Diego to London, Ontario. There are no popular flight routes from San Diego to London, Ontario.
Search flight deals

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

  • How far is San Diego to London by plane?

    The straight-line distance from San Diego to London is 2064.3 mi. Flights usually cover this in 11h 40m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from San Diego Airport to London Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to London Airport.

  • What documentation or ID do you need to fly to London Airport?

    The necessary travel and health documents for your London 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 London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

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

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

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

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

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

momondo helps you find the best flight between San Diego and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to London from San Diego 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.

An easier way to manage your London, Ontario 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.
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