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Cheap flights from San Diego to London from £183

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
13 Nov — 20 Nov1
1 adult
1 adult, Economy

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

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 14 October 2025.

Round-trip from

£427

One-way from

£183

Popular in

June

Cheapest in

February

Average price

£527

Good round-trip deal

£491 or less

Good one-way deal

£361 or less
Alaska Airlines
  • Alaska Airlines
  • 6/1-2/2
  • 2 total stops
  • 37h 19m total
  • San Diego to London
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WestJet
  • WestJet
  • 12/1
  • 1 total stop
  • 16h 15m total
  • San Diego to London
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Highest demand for flights based on searches. 27% potential increase in price (£179 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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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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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 14 October 2025.

Wed 12/1116:07SAN - LHR
2 stops21h 33mScandinavian Airlines
Fri 21/1106:40LHR - SAN
2 stops24h 15mScandinavian Airlines
Deal found 12/10£433
Tue 4/1113:15SAN - LHR
1 stop12h 45mVirgin Atlantic
Tue 11/1110:45LHR - SAN
1 stop15h 26mVirgin Atlantic
Deal found 13/10£433
Tue 11/1116:07SAN - LHR
2 stops17h 33mScandinavian Airlines
Mon 17/1110:20LHR - SAN
2 stops20h 35mScandinavian Airlines
Deal found 12/10£434
Mon 27/1015:30SAN - LHR
1 stop13h 10mBritish Airways
Mon 10/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 12/10£435
Thu 13/1117:35SAN - STN
2 stops21h 45mMultiple Airlines
Mon 17/1115:15STN - SAN
2 stops32h 30mMultiple Airlines
Deal found 13/10£436
Sun 19/1019:48SAN - LHR
1 stop13h 27mVirgin Atlantic
Tue 4/1110:45LHR - SAN
1 stop13h 34mVirgin Atlantic
Deal found 13/10£440
Wed 12/1117:35SAN - STN
2 stops21h 05mMultiple Airlines
Tue 18/1118:05STN - SAN
2 stops29h 40mMultiple Airlines
Deal found 13/10£441
Wed 12/1116:07SAN - LHR
2 stops18h 23mScandinavian Airlines
Tue 18/1107:05LHR - SAN
3 stops23h 50mScandinavian Airlines
Deal found 13/10£448
Mon 10/1109:59SAN - LHR
2 stops24h 31mScandinavian Airlines
Tue 3/206:40LHR - SAN
2 stops22h 17mScandinavian Airlines
Deal found 13/10£451
Wed 26/1112:45SAN - LHR
1 stop15h 05mMultiple Airlines
Wed 3/1208:45LHR - SAN
1 stop15h 00mMultiple Airlines
Deal found 12/10£453
Thu 13/1117:35SAN - LGW
2 stops19h 25mMultiple Airlines
Mon 17/1113:10LGW - SAN
2 stops34h 35mMultiple Airlines
Deal found 13/10£454
Tue 2/1217:35SAN - LGW
2 stops19h 25mMultiple Airlines
Wed 10/1213:10LGW - SAN
3 stops34h 35mMultiple Airlines
Deal found 12/10£482

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 14 October 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 - STN

SANSTN

San Diego

Thu 13/11

17:35-23:20

2 stops21h 45m

London Stansted

Mon 17/11

15:15-15:45

2 stops32h 30m

£436

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 26/2

07:00-09:20

2 stops18h 20m

London Heathrow

Sat 7/3

10:20-22:55

2 stops20h 35m

£439

San DiegoLondon

SAN - STN

SANSTN

San Diego

Wed 12/11

17:35-22:40

2 stops21h 05m

London Stansted

Tue 18/11

18:05-15:45

2 stops29h 40m

£441

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 10/11

09:59-18:30

2 stops24h 31m

London Heathrow

Tue 3/2

06:40-20:57

2 stops22h 17m

£451

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 11/1

10:00-21:40

2 stops27h 40m

London Heathrow

Mon 19/1

10:20-22:55

2 stops20h 35m

£451

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 12/11

16:07-21:40

2 stops21h 33m

London Heathrow

Fri 6/2

06:40-23:11

2 stops24h 31m

£451

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 12/11

09:59-18:30

2 stops24h 31m

London Heathrow

Thu 20/11

07:05-22:55

3 stops23h 50m

£454

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 11/11

16:07-21:35

3 stops21h 28m

London Heathrow

Mon 17/11

06:40-22:55

2 stops24h 15m

£454

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 11/11

16:07-21:35

3 stops21h 28m

London Heathrow

Tue 18/11

06:40-23:47

2 stops25h 07m

£454

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 2/12

16:04-18:30

2 stops18h 26m

London Heathrow

Sun 7/12

06:40-22:54

3 stops24h 14m

£454

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 60 results
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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
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 10 October 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, February is the cheapest month in which you can book a flight from San Diego to London (average of £364). Flying from San Diego to London in June is currently the most expensive (average of £622). 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 14 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from San Diego to London by exploring options for tickets in the morning.

Weekly flight availability from San Diego to London

Explore weekly flight availability from San Diego to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 October 2025.

The most flights from SAN to LON are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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 40% 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.

Boston (BOS) is the most affordable one-stop option, with an average return flight price of £665.

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 14 October 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
2,988 reviews
Check prices

Food

6.3

Overall

7.0

Comfort

6.7

Boarding

7.1

Crew

7.7

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
2,988 reviews
Iberia
7.0
Good
2,988 reviews
Check prices

Food

6.3

Overall

7.0

Comfort

6.7

Boarding

7.1

Crew

7.7

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
7,454 reviews
Iberia
7.0
Good
2,988 reviews
Check prices

Food

6.3

Overall

7.0

Comfort

6.7

Boarding

7.1

Crew

7.7

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 8 outbound flights to London per day.

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

    Scandinavian Airlines, Virgin Atlantic, and SWISS can get you from San Diego to London in just under 17h 04m. Your travel time can differ by up to 1h 31m. 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 (£514), 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 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 (78%), Alaska Airlines (78%) and British Airways (78%).

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

    On average you can expect to pay £485 for a flight from San Diego to London. The cheapest flight overall is £312 while the most popular route, (San Diego - London Heathrow) is currently priced at £418.

  • 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 £364). Flying from San Diego to London in June is currently the most expensive (average of £622). 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

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 14 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£514Average£742FlexibilityNo 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!

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