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Cheap flights from San Diego to London from $303

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to London departing on 4/20. 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

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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
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
$417WestJet
Mon, Jun 22 - Mon, Jun 29
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
$418WestJet
Mon, Jun 22 - Mon, Jun 29
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
$436WestJet
Thu, May 28 - Mon, Jun 1
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
$452WestJet
Thu, May 28 - Mon, Jun 1
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
$470WestJet
Thu, May 28 - Mon, Jun 1
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
$498WestJet
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
$514WestJet
Mon, Jun 22 - Mon, Jun 29
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
$519WestJet
Mon, Jun 22 - Mon, Jun 29
WestJet Logo
3:30 pm - 4:45 pm
SAN
-
YXU
22h 15m
1 stop
WestJet Logo
6:10 am - 2:10 pm
YXU
-
SAN
11h 00m
1 stop
$534WestJet
Thu, May 28 - Mon, Jun 1
Air Canada Logo
1:15 pm - 8:53 am
SAN
-
YXU
16h 38m
1 stop
Air Canada Logo
5:10 am - 12:18 pm
YXU
-
SAN
10h 08m
1 stop
$539Air Canada
Thu, May 28 - Mon, Jun 1

Air Canada flights from San Diego to London, Ontario

Our best Air Canada deals on San Diego to London, Ontario flight tickets
Air Canada
May 28
SAN1:15 pmSan Diego
16h 38m
1 stop
YXU8:53 amLondon
Jun 1
YXU5:10 amLondon
10h 08m
1 stop
SAN12:18 pmSan Diego
$539
Air Canada
May 28
SAN1:15 pmSan Diego
16h 38m
1 stop
YXU8:53 amLondon
Jun 1
YXU5:10 amLondon
18h 33m
2 stops
SAN8:43 pmSan Diego
$577
Air Canada
Jun 22
SAN12:30 pmSan Diego
17h 22m
1 stop
YXU8:52 amLondon
Jun 29
YXU5:10 amLondon
9h 25m
1 stop
SAN11:35 amSan Diego
$594

United Airlines flights from San Diego to London, Ontario

Our best United Airlines deals on San Diego to London, Ontario flight tickets
United Airlines
May 28
SAN6:40 amSan Diego
11h 58m
2 stops
YXU9:38 pmLondon
Jun 1
YXU12:20 pmLondon
13h 14m
2 stops
SAN10:34 pmSan Diego
$574
United Airlines
May 28
SAN9:05 pmSan Diego
11h 38m
2 stops
YXU11:43 amLondon
Jun 1
YXU12:20 pmLondon
14h 34m
2 stops
SAN11:54 pmSan Diego
$636
United Airlines
Jun 22
SAN6:27 pmSan Diego
14h 15m
2 stops
YXU11:42 amLondon
Jun 29
YXU9:30 amLondon
16h 04m
2 stops
SAN10:34 pmSan Diego
$640

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 April 1, 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
Quickest 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

6:10 am-2:10 pm

1 stop11h 00m

$417

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

$418

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

3:30 pm-5:20 am

1 stop10h 50m

London

Mon 6/1

6:10 am-2:10 pm

1 stop11h 00m

$436

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

3:30 pm-1:50 pm

2 stops19h 20m

London

Mon 6/1

6:10 am-2:10 pm

1 stop11h 00m

$452

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

3:30 pm-1:50 pm

2 stops19h 20m

London

Mon 6/1

6:10 am-2:10 pm

1 stop11h 00m

$470

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

$498

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

$514

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

$519

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

3:30 pm-4:45 pm

1 stop22h 15m

London

Mon 6/1

6:10 am-2:10 pm

1 stop11h 00m

$534

San DiegoLondon

SAN - YXU

SANYXU

San Diego

Thu 5/28

1:15 pm-8:53 am

1 stop16h 38m

London

Mon 6/1

5:10 am-12:18 pm

1 stop10h 08m

$539

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 is the cheapest airline that flies from San Diego to London?

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

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 47% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 6 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

10h 50m

Direct flights

None
The fastest flight from San Diego to London, Ontario takes 10h 50m
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 10h 50m, 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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