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Cheap flights from San Diego to London from £202

SAN — LON
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Diego to London are usually found in February or March, booked 5 days in advance, depart on a Sunday or Monday and return on a Tuesday

Cheap flight deals from San Diego to London

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to London

Tue 1/1221:40 -
1 stop16h 00m
Mon 15/208:05 -
1 stop19h 14m
Deal found 30/10£635
Mon 28/1214:45 -
2 stops38h 05m
Sat 9/114:50 -
1 stop29h 50m
Deal found 30/10£637
Wed 2/1209:58 -
2 stops42h 52m
Mon 15/214:50 -
1 stop29h 50m
Deal found 30/10£638
Wed 2/1206:30 -
2 stops29h 00m
Wed 9/1206:00 -
2 stops20h 16m
Deal found 27/10£639
Wed 2/1206:30 -
2 stops29h 00m
Sun 6/1220:50 -
3 stops29h 26m
Deal found 28/10£640
Wed 9/1212:35 -
1 stop25h 05m
Mon 25/108:05 -
1 stop35h 15m
Deal found 28/10£645
Fri 4/1219:05 -
2 stops33h 45m
Mon 15/214:50 -
1 stop29h 50m
Deal found 30/10£646
Fri 13/1111:48 -
1 stop13h 42m
Mon 23/1109:20 -
1 stop32h 20m
Deal found 27/10£646
Wed 4/1121:40 -
1 stop16h 00m
Sun 8/1109:20 -
1 stop17h 38m
Deal found 26/10£647
Mon 16/1121:40 -
1 stop16h 00m
Sun 22/1109:20 -
1 stop18h 16m
Deal found 26/10£649
Tue 24/1113:02 -
2 stops39h 48m
Tue 1/1214:50 -
1 stop29h 50m
Deal found 27/10£649
Wed 4/1121:40 -
1 stop16h 00m
Tue 17/1107:25 -
1 stop20h 57m
Deal found 26/10£651

Find flight deals from San Diego to London

Round-trip from

£637

One-way from

£202

Popular in

June

Cheapest in

February

Average price

£691

Good round-trip deal

£844 or less

Good one-way deal

£246 or less
JetBlue
  • JetBlue
  • 6/3-13/3
  • 2 total stops
  • 46h 58m total
  • San Diego to London
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23/1-31/12
  • 23/1-31/12
  • 2 total stops
  • 37h 41m total
  • San Diego to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£149 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from San Diego to London (LON).
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Price to beat on a one-way flight from San Diego to London (LON).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Mon 11/1

21:45-21:40

1 stop15h 55m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£216

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Wed 25/11

20:55-21:40

1 stop16h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£223

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Thu 3/12

21:40-20:55

1 stop15h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£223

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sun 8/11

21:40-21:40

1 stop16h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£307
Fastest return journey

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Wed 11/11

18:00-12:40

Nonstop10h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£485

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 12/1

11:00-17:30

3 stops22h 30m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£487

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 10/11

11:41-17:30

3 stops21h 49m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£487

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sun 10/1

11:00-17:30

3 stops22h 30m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£488

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 12/1

07:00-21:35

3 stops30h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£546

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 10/11

06:35-21:35

3 stops31h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£546

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from San Diego to London

Have a flexible travel schedule? Discover the best time to fly to London from San Diego with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from San Diego to London

What is the cheapest month to book a flight from San Diego to London?

Currently, February is the cheapest month in which you can book a flight from San Diego to London (average of £591). Flying from San Diego to London in June is currently the most expensive (average of £1,105). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to LON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to London as you normally would.

How much does it cost for a return flight from San Diego to London?

Airfare is below average for this route at the moment.
San Diego to London flights typically cost between £664 and £978 in March.
The cheapest return price found within the last 5 days was £637 on JetBlue (6 Mar–13 Mar).

How far ahead should I book a flight from San Diego to London?

The price you pay for your flight from San Diego to London may vary depending on when you book. For the best chance of a lower fare, look to book 10 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

Get a feel of what it's like to fly with British Airways from San Diego to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,275 reviews
Check prices

Overall

6.7

Crew

7.7

Food

6.4

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
8,275 reviews
British Airways
6.7
Okay
8,275 reviews
Check prices

Overall

6.7

Crew

7.7

Food

6.4

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

  • What airport do you fly from for flights from San Diego to London?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly out of when you book flights from San Diego to London. 1 airline have flights from San Diego to London on a regular basis. Booking flights from San Diego to London should not be difficult; the airport handles an average of 2 outbound flights to London per day.

  • How long is the flight from San Diego to London?

    Delta, Scandinavian Airlines, and United Airlines can get you from San Diego to London in just under 14h 15m. Your travel time can differ by up to 6h 55m. There are 5469 mi between San Diego and London. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from San Diego to London round-trip?

    According to our current data, British Airways (£509), offers the cheapest pricing from San Diego to London. British Airways is currently priced 33% below the average price you’ll pay for this route.

  • What are the most popular routes from San Diego to London?

    When deciding which route to take from San Diego to London consider San Diego - London Heathrow, San Diego - London Gatwick or San Diego - London Stansted as they are the most popular.

  • What are the most reliable airlines from San Diego to London?

    The top 3 most reliable airlines when flying from San Diego to London are American Airlines (81%), Alaska Airlines (81%) and British Airways (81%).

  • What are the cheapest flights from San Diego to London?

    On average you can expect to pay £1,027 for a flight from San Diego to London. The cheapest flight overall is £244 while the most popular route, (San Diego - London Heathrow) is currently priced at £540.

  • Can I find deals for flights from San Diego to London that include hotel bookings?

    Yes. In addition to deals on San Diego to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Diego to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to London.

  • Can I find deals for business class flights from San Diego to London?

    Yes. Cheapflights offers flight deals from San Diego to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to London?

    Currently, February is the cheapest month in which you can book a flight from San Diego to London (average of £591). Flying from San Diego to London in June is currently the most expensive (average of £1,105). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from San Diego to London

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£509Average£824FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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