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Cheap flights from San Diego to the United Kingdom from $333

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 the United Kingdom departing on 9/14. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
10:00 am - 9:20 am
SAN
-
LHR
39h 20m
2 stops
Scandinavian Airlines Logo
7:05 am - 11:43 pm
LHR
-
SAN
24h 38m
2 stops
$736Scandinavian Airlines
Mon, Sep 14 - Thu, Sep 17
Multiple Airlines Logo
6:32 am - 11:50 am
SAN
-
LHR
21h 18m
2 stops
Multiple Airlines Logo
7:25 am - 3:25 pm
LHR
-
SAN
16h 00m
1 stop
$766Multiple Airlines
Mon, Apr 13 - Wed, Apr 22
British Airways Logo
7:40 pm - 9:30 pm
SAN
-
INV
17h 50m
1 stop
British Airways Logo
6:50 am - 2:55 pm
INV
-
SAN
16h 05m
1 stop
$783British Airways
Wed, Sep 16 - Sun, Sep 20
Iberia Logo
1:03 pm - 10:30 am
SAN
-
LHR
13h 27m
1 stop
Iberia Logo
4:25 pm - 11:56 pm
LHR
-
SAN
15h 31m
1 stop
$796Iberia
Mon, Apr 13 - Wed, Apr 22
British Airways Logo
7:40 pm - 9:30 pm
SAN
-
INV
17h 50m
1 stop
British Airways Logo
8:30 am - 2:55 pm
INV
-
SAN
14h 25m
1 stop
$802British Airways
Wed, Sep 16 - Mon, Sep 21
American Airlines Logo
11:09 am - 2:55 pm
SAN
-
INV
19h 46m
2 stops
American Airlines Logo
6:50 am - 2:55 pm
INV
-
SAN
16h 05m
1 stop
$819American Airlines
Wed, Sep 16 - Sun, Sep 20
American Airlines Logo
11:09 am - 2:55 pm
SAN
-
INV
19h 46m
2 stops
American Airlines Logo
8:30 am - 8:00 pm
INV
-
SAN
19h 30m
2 stops
$829American Airlines
Wed, Sep 16 - Mon, Sep 21
Iberia Logo
6:15 am - 10:50 am
SAN
-
LGW
20h 35m
2 stops
Iberia Logo
8:40 pm - 11:33 pm
LGW
-
SAN
34h 53m
2 stops
$856Iberia
Tue, Apr 21 - Mon, May 4
Delta Logo
9:50 pm - 8:35 am
SAN
-
SOU
26h 45m
2 stops
Delta Logo
9:05 am - 8:39 pm
SOU
-
SAN
19h 34m
2 stops
$1,211Delta
Sat, May 16 - Fri, May 29
Delta Logo
10:00 pm - 8:35 am
SAN
-
SOU
26h 35m
2 stops
Delta Logo
9:15 am - 11:35 pm
SOU
-
SAN
22h 20m
2 stops
$1,294Delta
Sat, Jun 6 - Sun, Jun 14

Lufthansa flights from San Diego to United Kingdom

Our best Lufthansa deals on San Diego to United Kingdom flight tickets
Lufthansa
Apr 21
SAN5:15 pmSan Diego
14h 25m
1 stop
LHR3:40 pmLondon Heathrow
Apr 28
LHR6:55 amLondon Heathrow
16h 30m
1 stop
SAN3:25 pmSan Diego
$799
Lufthansa
Apr 27
SAN5:15 pmSan Diego
18h 25m
1 stop
LHR7:40 pmLondon Heathrow
May 19
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
$800
Lufthansa
Apr 21
SAN5:15 pmSan Diego
14h 25m
1 stop
LHR3:40 pmLondon Heathrow
Apr 28
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
$809

British Airways flights from San Diego to United Kingdom

Our best British Airways deals on San Diego to United Kingdom flight tickets
British Airways
Sep 16
SAN7:40 pmSan Diego
17h 50m
1 stop
INV9:30 pmInverness
Sep 20
INV6:50 amInverness
16h 05m
1 stop
SAN2:55 pmSan Diego
$783
British Airways
Sep 16
SAN7:40 pmSan Diego
17h 50m
1 stop
INV9:30 pmInverness
Sep 21
INV8:30 amInverness
14h 25m
1 stop
SAN2:55 pmSan Diego
$802
British Airways
Sep 16
SAN7:40 pmSan Diego
17h 50m
1 stop
INV9:30 pmInverness
Sep 21
INV3:45 pmInverness
34h 05m
1 stop
SAN5:50 pmSan Diego
$821

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to United Kingdom 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 30, 2026.
Use the filters below to find and compare flights from San Diego to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 9/14

10:00 am-9:20 am

2 stops39h 20m

London Heathrow

Thu 9/17

7:05 am-11:43 pm

2 stops24h 38m

$736

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 4/13

6:32 am-11:50 am

2 stops21h 18m

London Heathrow

Wed 4/22

7:25 am-3:25 pm

1 stop16h 00m

$766

San DiegoInverness

SAN - INV

SANINV

San Diego

Wed 9/16

7:40 pm-9:30 pm

1 stop17h 50m

Inverness

Sun 9/20

6:50 am-2:55 pm

1 stop16h 05m

$783
Quickest round-trip

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 4/13

1:03 pm-10:30 am

1 stop13h 27m

London Heathrow

Wed 4/22

4:25 pm-11:56 pm

1 stop15h 31m

$796

San DiegoInverness

SAN - INV

SANINV

San Diego

Wed 9/16

7:40 pm-9:30 pm

1 stop17h 50m

Inverness

Mon 9/21

8:30 am-2:55 pm

1 stop14h 25m

$802

San DiegoInverness

SAN - INV

SANINV

San Diego

Wed 9/16

11:09 am-2:55 pm

2 stops19h 46m

Inverness

Sun 9/20

6:50 am-2:55 pm

1 stop16h 05m

$819

San DiegoInverness

SAN - INV

SANINV

San Diego

Wed 9/16

11:09 am-2:55 pm

2 stops19h 46m

Inverness

Mon 9/21

8:30 am-8:00 pm

2 stops19h 30m

$829

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Tue 4/21

6:15 am-10:50 am

2 stops20h 35m

London Gatwick

Mon 5/4

8:40 pm-11:33 pm

2 stops34h 53m

$856

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 5/16

9:50 pm-8:35 am

2 stops26h 45m

Southampton Eastleigh

Fri 5/29

9:05 am-8:39 pm

2 stops19h 34m

$1,211

San DiegoSouthampton

SAN - SOU

SANSOU

San Diego

Sat 6/6

10:00 pm-8:35 am

2 stops26h 35m

Southampton Eastleigh

Sun 6/14

9:15 am-11:35 pm

2 stops22h 20m

$1,294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from San Diego to United Kingdom

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 month to fly to United Kingdom?

In general, October is the cheapest month to fly from San Diego to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $687. If you aren’t able to travel to United Kingdom during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $712.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from San Diego to United Kingdom is on a Wednesday when prices can be found for as low as $824. The most expensive day to fly to United Kingdom is Thursday, with ticket prices averaging around $922.

What is the cheapest time of day to depart on your flight to United Kingdom?

According to our data, the cheapest time of day to fly to United Kingdom is in the afternoon. momondo users have found flights departing from San Diego to United Kingdom in the afternoon for as low as $850. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the evening, with an average ticket price of $913. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest San Diego to United Kingdom flight route?

Fly from San Diego to London Heathrow for the best San Diego - United Kingdom flight prices

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $902 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from San Diego for as low as $734 on momondo.

What cabin class options are available on San Diego to United Kingdom flights?

There are 4 cabin classes available to choose from on San Diego to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Diego to United Kingdom flights?

You could potentially save up to 27% on your flight if you consider stops on a San Diego to United Kingdom flight.

Cheap San Diego to United Kingdom flight deals and tips

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

Best Price Found

$496

Fastest flight time

10h 40m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from San Diego in the past 72 hours is $496. The best round-trip flight deal from San Diego to United Kingdom found on momondo in the last 72 hours is $871.
The fastest flight from San Diego to United Kingdom takes 10h 40m
Direct flights go from San Diego to United Kingdom every day.
There are 1,286 airports in United Kingdom. From San Diego there are direct flights to London Heathrow (LHR).
Search flight deals

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

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

  • How many operators does momondo search for flights from San Diego Airport to United Kingdom?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Diego to United Kingdom?

Best airlines flying from San Diego to United Kingdom

Compare and see reviews for airlines that fly from San Diego to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $181Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
DeltaPriceFrom $552Free CancellationRating
7.9
8,358 reviews
Search Delta flights
IberiaPriceFrom $554Free CancellationRating
7.0
3,160 reviews
Search Iberia flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
9,514 reviews
Search United Airlines flights
British AirwaysPriceFrom $573Free CancellationRating
6.7
7,836 reviews
Search British Airways flights
American AirlinesPriceFrom $575Free CancellationRating
7.1
11,529 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $578Free CancellationRating
7.3
1,731 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom $620Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
LufthansaPriceFrom $621Free CancellationRating
6.8
7,877 reviews
Search Lufthansa flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to United Kingdom 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 United Kingdom?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Diego to United Kingdom.

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

Price alerts on flights to United Kingdom 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 United Kingdom trip

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Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $435
Flights to Manchesterfrom $537
Flights to Edinburghfrom $576
Flights to Glasgowfrom $565
Flights to Birminghamfrom $568
Flights to Newcastle upon Tynefrom $603
Flights to Belfastfrom $710
Flights to Bristolfrom $621
Flights to Invernessfrom $603
Flights to Leedsfrom $648
Flights to Liverpoolfrom $553
Flights to Aberdeenfrom $635