Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Diego to London from £301

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from San Diego to London are usually found in October or February, booked 51 days in advance, depart on a Monday or Saturday and return on a Tuesday

Cheap flight deals from San Diego to London

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 November 2025.

Round-trip from

£480

One-way from

£301

Popular in

June

Cheapest in

October

Average price

£570

Good round-trip deal

£743 or less

Good one-way deal

£366 or less
British Airways
  • British Airways
  • 23/3-30/3
  • 1 total stop
  • 24h 30m total
  • San Diego to London
Search Deals
SWISS
  • SWISS
  • 2/2
  • 2 total stops
  • 17h 05m total
  • San Diego to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£181 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from San Diego to London (LON).
Search Deals
Price to beat on a one-way flight from San Diego to London (LON).
Search Deals

Find flight deals from San Diego to London

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to London
Explore the most affordable flight options available from San Diego to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Thu 11/1206:20SAN - LHR
1 stop16h 45mDelta
Fri 9/116:00LHR - SAN
1 stop27h 31mDelta
Deal found 25/11£489
Fri 5/1211:36SAN - LHR
1 stop13h 09mMultiple Airlines
Fri 12/1211:20LHR - SAN
1 stop15h 57mMultiple Airlines
Deal found 25/11£489
Sat 6/1214:16SAN - LHR
1 stop12h 59mMultiple Airlines
Sat 13/1213:35LHR - SAN
1 stop16h 55mMultiple Airlines
Deal found 25/11£490
Fri 5/1211:36SAN - LHR
1 stop13h 09mDelta
Fri 12/1211:05LHR - SAN
2 stops19h 49mDelta
Deal found 25/11£492
Tue 9/1218:10SAN - LHR
1 stop33h 40mMultiple Airlines
Tue 16/1209:00LHR - SAN
2 stops19h 48mMultiple Airlines
Deal found 25/11£494
Wed 10/1209:23SAN - LHR
1 stop14h 27mIberia
Wed 4/212:50LHR - SAN
Nonstop11h 20mIberia
Deal found 24/11£498
Wed 10/1206:15SAN - LHR
2 stops19h 55mAir Canada
Fri 9/113:25LHR - SAN
2 stops30h 28mAir Canada
Deal found 25/11£505
Wed 31/1207:00SAN - LHR
1 stop14h 55mAustrian Airlines
Fri 9/112:05LHR - SAN
1 stop16h 42mAustrian Airlines
Deal found 25/11£505
Tue 9/1212:08SAN - LHR
1 stop14h 07mLufthansa
Tue 16/1210:05LHR - SAN
1 stop16h 23mLufthansa
Deal found 25/11£506
Tue 9/1220:00SAN - LHR
2 stops27h 30mUnited Airlines
Fri 9/113:25LHR - SAN
2 stops17h 12mUnited Airlines
Deal found 25/11£508
Wed 3/1213:05SAN - LCY
2 stops21h 35mSWISS
Tue 16/1209:15LCY - SAN
2 stops21h 15mSWISS
Deal found 26/11£558
Fri 12/1210:45SAN - LGW
1 stop15h 15mMultiple Airlines
Thu 8/114:00LGW - SAN
1 stop27h 38mMultiple Airlines
Deal found 25/11£711

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Diego to London 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, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

San Diego

Fly to

London

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 1/1

06:30-12:50

1 stop22h 20m

London Heathrow

Wed 21/1

10:45-18:08

1 stop15h 23m

£495

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Mon 12/1

07:05-07:15

2 stops16h 10m

London City

Tue 20/1

20:05-16:36

2 stops28h 31m

£495

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Wed 18/2

06:25-07:15

2 stops16h 50m

London City

Tue 24/2

10:00-22:50

2 stops20h 50m

£495

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Wed 6/5

13:35-16:40

2 stops19h 05m

London City

Mon 11/5

20:15-11:50

1 stop23h 35m

£498

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 12/1

16:20-21:20

3 stops21h 00m

London Heathrow

Tue 20/1

06:40-22:47

2 stops24h 07m

£503

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 7/1

06:15-09:40

2 stops19h 25m

London Heathrow

Wed 14/1

09:30-20:49

2 stops19h 19m

£510

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 19/1

18:00-12:35

Nonstop10h 35m

London Heathrow

Tue 27/1

12:50-16:10

Nonstop11h 20m

£513

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Thu 12/2

11:05-17:40

2 stops22h 35m

London City

Mon 16/2

09:50-00:29

2 stops22h 39m

£537

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Fri 9/1

06:15-08:45

1 stop18h 30m

London Heathrow

Fri 16/1

06:30-18:53

2 stops20h 23m

£542

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Sun 29/3

17:02-16:40

2 stops15h 38m

London City

Mon 13/4

09:20-20:21

2 stops19h 01m

£544

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 60 results
1
2
3
...
6

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from San Diego to London. Price data was last updated on 21 November 2025.

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 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, December is the cheapest month in which you can book a flight from San Diego to London (average of £355). Flying from San Diego to London in June is currently the most expensive (average of £628). 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?

Find hourly flight availability from San Diego to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 21% on flights from San Diego to London by exploring options for tickets in the morning.

What’s the top stopover airport for flights from San Diego to London?

Share of one-stop return flights from San Diego to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Denver (DEN) – chosen by Cheapflights users on 33% of one-stop itineraries from San Diego to London on Cheapflights.

What’s the cheapest stopover airport for flights from San Diego to London?

Average return fare for one-stop flights from San Diego to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Seattle (SEA) is the most affordable one-stop option, with an average return flight price of £504.

What’s the fastest stopover option from San Diego to London?

Shortest average travel time for one-stop one-way flights from San Diego to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 13h 29m.

Which airport typically offers the quickest stopover for flights from San Diego to London?

Average stopover duration for one-stop one-way flights from San Diego to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 43m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 27 November 2025.
Get a feel of what it's like to fly with Iberia and 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.
Iberia
7.0
Good
3,036 reviews
Check prices

Crew

7.7

Overall

7.0

Boarding

7.2

Comfort

6.7

Food

6.3

Entertainment

6.6

Reviews

1 / 20
6.0
Good

David,May 2025

JFK - MAD

Unfortunately carry on bag over head was full. I was seated 27J and had to place my carry on by seat 8 .. other then that it was a good flight
Iberia
7.0
Good
3,036 reviews
Iberia
7.0
Good
3,036 reviews
Check prices

Crew

7.7

Overall

7.0

Boarding

7.2

Comfort

6.7

Food

6.3

Entertainment

6.6

Reviews

1 / 20
6.0
Good

David,May 2025

JFK - MAD

Unfortunately carry on bag over head was full. I was seated 27J and had to place my carry on by seat 8 .. other then that it was a good flight
British Airways
6.7
Okay
7,539 reviews
Iberia
7.0
Good
3,036 reviews
Check prices

Crew

7.7

Overall

7.0

Boarding

7.2

Comfort

6.7

Food

6.3

Entertainment

6.6

Reviews

1 / 20
6.0
Good

David,May 2025

JFK - MAD

Unfortunately carry on bag over head was full. I was seated 27J and had to place my carry on by seat 8 .. other then that it was a good flight

Related info for your journey

Find useful and relevant information for your journey from San Diego to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 5 outbound flights to London per day.

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

    Delta, Virgin Atlantic, and Scandinavian Airlines can get you from San Diego to London in just under 16h 10m. Your travel time can differ by up to 6h 10m. There are 5484 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 (£517), offers the cheapest pricing from San Diego to London. British Airways is currently priced 20% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from San Diego to London one-way?

    For one-way options, check prices for SWISS. According to our data, you can fly for as low as £301. Users have also found prices from £306 and £313 on Delta and Lufthansa, respectively.

  • 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 City 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 (77%), Alaska Airlines (77%) and British Airways (77%).

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

    On average you can expect to pay £740 for a flight from San Diego to London. The cheapest flight overall is £318 while the most popular route, (San Diego - London Heathrow) is currently priced at £408.

  • 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, December is the cheapest month in which you can book a flight from San Diego to London (average of £355). Flying from San Diego to London in June is currently the most expensive (average of £628). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Slough
Croydon
Hounslow
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Crawley
Romford
Chichester
Bedford
Guildford
Ipswich

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to London

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Gatwick flights
Los Angeles to London City flights
San Francisco to Gatwick flights
Los Angeles to Stansted flights
San Francisco to London City flights
San Diego to Heathrow flights
Los Angeles to Luton flights
Ontario to Heathrow flights
San Francisco to Stansted flights
Santa Ana to Heathrow flights
Las Vegas to Heathrow flights
San Francisco to Luton flights
San Diego to Gatwick flights
Los Angeles to Edinburgh flights
San Jose to Heathrow flights
Las Vegas to Gatwick flights
San Francisco to Edinburgh flights
Las Vegas to London City flights
Sacramento to Heathrow flights
Los Angeles to Manchester flights
Burbank to Heathrow flights
Ontario to Gatwick flights
San Diego to Stansted flights
Santa Ana to Gatwick flights
Oakland to Heathrow flights
Sacramento to Gatwick flights
San Jose to Gatwick flights
Ontario to Edinburgh flights
San Francisco to Manchester flights
Los Angeles to Southampton flights
Reno to Heathrow flights
San Jose to Edinburgh flights
Ontario to Manchester flights
Palm Springs to Heathrow flights
Santa Ana to Manchester flights
Oakland to Gatwick flights
Las Vegas to Edinburgh flights
Oakland to Edinburgh flights
San Diego to Edinburgh flights
Las Vegas to Luton flights

Top airline flying from San Diego to London

Discover the top airline that operate flights from San Diego to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£517Average£782FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Diego to London?

Cheapflights helps you search for flights from San Diego to London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from San Diego to London?

Millions of users choose and trust Cheapflights to book the best flight deals from San Diego to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Diego to London with no change fees?

Yes, we can. To see specific flights from San Diego to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from San Diego to London become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.