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Cheap flights from San Diego to London from £177

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 5/3. 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 return flights

Enter your travel dates to find the best prices.
Delta Logo
10:00 - 11:20
SAN
-
LHR
17h 20m
2 stops
Delta Logo
06:30 - 11:50
LHR
-
SAN
13h 20m
1 stop
£469Delta
Thu, 7 May - Thu, 21 May
Lufthansa Logo
17:35 - 21:00
SAN
-
LHR
19h 25m
1 stop
Lufthansa Logo
08:45 - 16:45
LHR
-
SAN
15h 00m
1 stop
£469Lufthansa
Sun, 22 Feb - Tue, 10 Mar
Lufthansa Logo
11:03 - 17:05
SAN
-
LHR
23h 02m
2 stops
Lufthansa Logo
07:40 - 19:48
LHR
-
SAN
19h 08m
2 stops
£471Lufthansa
Wed, 11 Mar - Wed, 18 Mar
Lufthansa Logo
11:05 - 15:50
SAN
-
LHR
20h 45m
2 stops
Lufthansa Logo
07:40 - 19:48
LHR
-
SAN
19h 08m
2 stops
£472Lufthansa
Mon, 2 Mar - Fri, 13 Mar
Lufthansa Logo
11:03 - 15:50
SAN
-
LHR
21h 47m
2 stops
Lufthansa Logo
07:40 - 21:03
LHR
-
SAN
20h 23m
2 stops
£472Lufthansa
Wed, 11 Mar - Wed, 18 Mar
Virgin Atlantic Logo
19:25 - 16:50
SAN
-
LHR
13h 25m
1 stop
Virgin Atlantic Logo
06:30 - 13:05
LHR
-
SAN
13h 35m
1 stop
£473Virgin Atlantic
Sun, 22 Feb - Tue, 10 Mar
Lufthansa Logo
17:15 - 18:25
SAN
-
LHR
17h 10m
1 stop
Lufthansa Logo
07:25 - 15:25
LHR
-
SAN
16h 00m
1 stop
£474Lufthansa
Tue, 28 Apr - Tue, 5 May
JetBlue Logo
21:00 - 21:40
SAN
-
LHR
16h 40m
1 stop
JetBlue Logo
07:25 - 20:00
LHR
-
SAN
20h 35m
1 stop
£475JetBlue
Tue, 10 Feb - Tue, 24 Feb
Lufthansa Logo
17:35 - 19:35
SAN
-
LHR
18h 00m
1 stop
Lufthansa Logo
07:30 - 20:51
LHR
-
SAN
21h 21m
2 stops
£476Lufthansa
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
12:45 - 13:20
SAN
-
LHR
16h 35m
1 stop
Multiple Airlines Logo
07:25 - 15:25
LHR
-
SAN
16h 00m
1 stop
£477Multiple Airlines
Mon, 13 Apr - Wed, 22 Apr

Lufthansa flights from San Diego to London Heathrow Airport

Our best Lufthansa deals on San Diego to London Heathrow Airport flight tickets
Lufthansa
22 Feb
SAN17:35San Diego
19h 25m
1 stop
LHR21:00London Heathrow
10 Mar
LHR08:45London Heathrow
15h 00m
1 stop
SAN16:45San Diego
£469
Lufthansa
11 Mar
SAN11:03San Diego
21h 47m
2 stops
LHR15:50London Heathrow
18 Mar
LHR07:40London Heathrow
20h 23m
2 stops
SAN21:03San Diego
£472
Lufthansa
28 Apr
SAN17:15San Diego
15h 50m
1 stop
LHR17:05London Heathrow
5 May
LHR07:25London Heathrow
16h 00m
1 stop
SAN15:25San Diego
£474

Virgin Atlantic flights from San Diego to London Heathrow Airport

Our best Virgin Atlantic deals on San Diego to London Heathrow Airport flight tickets
Virgin Atlantic
16 Mar
SAN06:15San Diego
18h 35m
1 stop
LHR07:50London Heathrow
23 Mar
LHR20:25London Heathrow
23h 40m
1 stop
SAN13:05San Diego
£469
Virgin Atlantic
22 Feb
SAN19:25San Diego
13h 25m
1 stop
LHR16:50London Heathrow
10 Mar
LHR06:30London Heathrow
13h 35m
1 stop
SAN13:05San Diego
£473

momondo Fare Finder

 
Customise your flight search to find flights from San Diego to London Heathrow Airport 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 279,928 searches. Data last updated 31 January 2026.
Use the filters below to find and compare flights from San Diego to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 7/5

10:00-11:20

2 stops17h 20m

London Heathrow

Thu 21/5

06:30-11:50

1 stop13h 20m

£469

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 22/2

17:35-21:00

1 stop19h 25m

London Heathrow

Tue 10/3

08:45-16:45

1 stop15h 00m

£469

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 11/3

11:03-17:05

2 stops23h 02m

London Heathrow

Wed 18/3

07:40-19:48

2 stops19h 08m

£471

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 2/3

11:05-15:50

2 stops20h 45m

London Heathrow

Fri 13/3

07:40-19:48

2 stops19h 08m

£472

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 11/3

11:03-15:50

2 stops21h 47m

London Heathrow

Wed 18/3

07:40-21:03

2 stops20h 23m

£472

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 22/2

19:25-16:50

1 stop13h 25m

London Heathrow

Tue 10/3

06:30-13:05

1 stop13h 35m

£473

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 28/4

17:15-18:25

1 stop17h 10m

London Heathrow

Tue 5/5

07:25-15:25

1 stop16h 00m

£474

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 10/2

21:00-21:40

1 stop16h 40m

London Heathrow

Tue 24/2

07:25-20:00

1 stop20h 35m

£475

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 25/2

17:35-19:35

1 stop18h 00m

London Heathrow

Wed 4/3

07:30-20:51

2 stops21h 21m

£476

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 13/4

12:45-13:20

1 stop16h 35m

London Heathrow

Wed 22/4

07:25-15:25

1 stop16h 00m

£477

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 Heathrow Airport

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 London Heathrow Airport?

In general, October is the cheapest month to fly from San Diego to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £524. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from San Diego averaging around £528.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from San Diego is on a Monday. momondo users have found tickets for Monday departures for as low as £497. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £885.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from San Diego to London Heathrow Airport in the afternoon for as low as £674. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £687 on average. Flights to London Heathrow Airport from San Diego in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Diego to London Heathrow flight route?

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

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £654 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Diego for as low as £553 on momondo.

What cabin class options are available on San Diego to London Heathrow flights?

There are 3 cabin classes available to choose from on San Diego to London Heathrow 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 London Heathrow Airport flights?

You could potentially save up to 10% on your flight if you consider stops on a San Diego to London Heathrow Airport flight.

How have San Diego to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for San Diego to London Heathrow Airport flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to London Heathrow Airport

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

Cheap San Diego to London Heathrow Airport (SAN to LHR) flight deals and tips

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

Best price found

£366

Fastest flight time

10h 35m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from San Diego in the past 72 hours is £366. The best return flight deal from San Diego to London Heathrow Airport found on momondo in the last 72 hours is £492.
The fastest flight from San Diego to London Heathrow Airport takes 10h 35m
Direct flights go from San Diego to London Heathrow Airport every day.
Search flight deals

  • How far is San Diego to London Heathrow by plane?

    San Diego and London Heathrow are 5468.7 mi apart from one another. 10h 35m is a normal flight duration for this route.

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

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

  • How many operators does momondo search for flights from San Diego Airport to London Heathrow Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to London Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport 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 London Heathrow Airport. 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 London Heathrow Airport?

  • What is the most popular airline from San Diego to London Heathrow Airport?

Best airlines flying from San Diego to London Heathrow Airport

Compare and see reviews for airlines that fly from San Diego to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £500Free CancellationRating
6.7
7,706 reviews
Search British Airways flights

  • British Airways Flights From San Diego to London Heathrow Airport

    Across 7 British Airways flights from San Diego to London Heathrow Airport this week, the average price was £737, with the best British Airways deals starting from £500 round-trip. 7,706 users have rated British Airways on momondo, with an average score of 6.7/10.

Travelling to a place near London?

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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?

Flights from San Diego to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 London.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from San Diego and alert you when they change.

An easier way to manage your London Heathrow Airport trip

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