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Cheap flights from San Diego to London from £341

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from San Diego to London are usually found in February or October, booked 70 days in advance, depart on a Monday or Sunday and return on a Friday

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 13 June 2025.

Round-trip from

£495

One-way from

£341

Popular in

June

Cheapest in

February

Average price

£1,014

Good round-trip deal

£431 or less

Good one-way deal

£307 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 18/8-17/9
  • 4 total stops
  • 37h 57m total
  • San Diego to London
1/9
  • 1/9
  • 3 total stops
  • 29h 56m total
  • San Diego to London
Highest demand for flights based on searches. 25% potential increase in price (£161 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from San Diego to London (LON).
Price to beat on a one-way flight from San Diego to London (LON).

Find flight deals from San Diego to London

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 13 June 2025.

Mon 18/815:59SAN - LHR
2 stops17h 41mScandinavian Airlines
Wed 17/906:40LHR - SAN
2 stops20h 16mScandinavian Airlines
Deal found 13/6£495
Mon 4/819:50SAN - LHR
Nonstop10h 30mBritish Airways
Wed 20/811:30LHR - SAN
Nonstop11h 20mBritish Airways
Deal found 11/6£495
Wed 13/808:10SAN - STN
2 stops22h 15mMultiple Airlines
Mon 18/816:10STN - SAN
2 stops31h 15mMultiple Airlines
Deal found 13/6£495
Sat 23/812:25SAN - LHR
2 stops34h 05mMultiple Airlines
Tue 2/920:05LHR - SAN
2 stops32h 43mMultiple Airlines
Deal found 11/6£496
Tue 23/921:25SAN - LGW
1 stop24h 55mMultiple Airlines
Mon 29/909:50LGW - SAN
2 stops21h 54mMultiple Airlines
Deal found 11/6£496
Mon 1/906:15SAN - LHR
1 stop21h 20mUnited Airlines
Mon 15/910:50LHR - SAN
1 stop36h 35mUnited Airlines
Deal found 13/6£497
Mon 4/817:00SAN - LHR
2 stops29h 30mAir Canada
Wed 20/809:30LHR - SAN
1 stop18h 08mAir Canada
Deal found 12/6£497
Tue 19/816:11SAN - LCY
2 stops18h 34mSWISS
Wed 27/809:25LCY - SAN
2 stops19h 00mSWISS
Deal found 11/6£498
Mon 4/813:30SAN - LHR
1 stop12h 20mDelta
Wed 20/809:20LHR - SAN
1 stop18h 06mDelta
Deal found 11/6£502
Mon 22/917:15SAN - STN
1 stop17h 45mLufthansa
Wed 1/1019:50STN - SAN
1 stop27h 35mLufthansa
Deal found 11/6£503
Sat 16/814:48SAN - LHR
1 stop31h 37mIberia
Fri 29/816:25LHR - SAN
1 stop14h 28mIberia
Deal found 11/6£504
Mon 10/1116:04SAN - LGW
2 stops17h 46mSWISS
Tue 18/1118:40LGW - SAN
2 stops33h 48mSWISS
Deal found 12/6£506

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 13 June 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

Mon 18/8

15:59-17:40

2 stops17h 41m

London Heathrow

Wed 17/9

06:40-18:56

2 stops20h 16m

£495

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 4/8

19:50-14:20

Nonstop10h 30m

London Heathrow

Wed 20/8

11:30-14:50

Nonstop11h 20m

£495

San DiegoLondon

SAN - STN

SANSTN

San Diego

Wed 13/8

08:10-14:25

2 stops22h 15m

London Stansted

Mon 18/8

16:10-15:25

2 stops31h 15m

£495

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 23/8

12:25-06:30

2 stops34h 05m

London Heathrow

Tue 2/9

20:05-20:48

2 stops32h 43m

£496

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Tue 23/9

21:25-06:20

1 stop24h 55m

London Gatwick

Mon 29/9

09:50-23:44

2 stops21h 54m

£496

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 1/9

06:15-11:35

1 stop21h 20m

London Heathrow

Mon 15/9

10:50-15:25

1 stop36h 35m

£497

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 4/8

17:00-06:30

2 stops29h 30m

London Heathrow

Wed 20/8

09:30-19:38

1 stop18h 08m

£497

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Tue 19/8

16:11-18:45

2 stops18h 34m

London City

Wed 27/8

09:25-20:25

2 stops19h 00m

£498

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 4/8

13:30-09:50

1 stop12h 20m

London Heathrow

Wed 20/8

09:20-19:26

1 stop18h 06m

£502

San DiegoLondon

SAN - STN

SANSTN

San Diego

Mon 22/9

17:15-19:00

1 stop17h 45m

London Stansted

Tue 30/9

19:50-15:25

1 stop27h 35m

£503

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 56 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 9 June 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 70 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, January is the cheapest month in which you can book a flight from San Diego to London (average of £112). Flying from San Diego to London in August is currently the most expensive (average of £164). 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 13 June 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.

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 13 June 2025.

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

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 13 June 2025.
Read reviews from past customers who have flown Delta, Alaska Airlines and Porter Airlines from San Diego to London. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 7 outbound flights to London per day.

  • What are the cheapest airlines flying from San Diego to London round-trip?

    According to our current data, Scandinavian Airlines (£495), British Airways (£495), and United Airlines (£497) offers the cheapest pricing from San Diego to London. Scandinavian Airlines is currently priced 24% 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 Icelandair. According to our data, you can fly for as low as £343. Users have also found prices from £344 and £346 on JetBlue and SWISS, respectively.

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

  • 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 £550 for a flight from San Diego to London. The cheapest flight overall is £277 while the most popular route, (San Diego - London Heathrow) is currently priced at £436.

  • 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, January is the cheapest month in which you can book a flight from San Diego to London (average of £112). Flying from San Diego to London in August is currently the most expensive (average of £164). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Gatwick
Luton
Slough
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Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
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Winchester
Folkestone
Maidstone
Dartford
Guildford

Browse thousands of different options on Cheapflights for your next trip

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£505Average£747FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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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.

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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.

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