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Cheap flights from San Diego to London from £167

SAN — LON
8 Oct — 15 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Diego to London are usually found in April or February, booked 72 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

Sun 4/1014:24 -
2 stops22h 16m
Wed 21/1006:30 -
2 stops18h 56m
Deal found 3/9£713
Mon 5/1015:00 -
2 stops17h 00m
Tue 20/1010:35 -
2 stops20h 16m
Deal found 6/9£713
Wed 23/910:23 -
1 stop26h 22m
Sat 10/1011:55 -
1 stop16h 12m
Deal found 7/9£714
Sun 4/1021:27 -
1 stop28h 33m
Tue 20/1014:00 -
1 stop27h 40m
Deal found 6/9£714
Sun 20/910:54 -
1 stop15h 21m
Fri 2/1018:00 -
1 stop13h 47m
Deal found 3/9£715
Wed 14/1013:24 -
2 stops20h 26m
Mon 19/1018:35 -
2 stops36h 06m
Deal found 5/9£715
Wed 7/1019:40 -
Nonstop10h 40m
Wed 14/1011:35 -
Nonstop11h 20m
Deal found 7/9£715
Sat 5/913:40 -
1 stop34h 15m
Fri 18/919:00 -
1 stop24h 50m
Deal found 4/9£715
Sat 3/1010:40 -
2 stops37h 45m
Wed 14/1009:25 -
2 stops21h 16m
Deal found 5/9£715
Sun 4/1019:40 -
Nonstop10h 40m
Tue 20/1014:30 -
Nonstop11h 20m
Deal found 5/9£716
Tue 6/1007:00 -
3 stops24h 50m
Mon 19/1012:50 -
2 stops34h 35m
Deal found 7/9£716
Tue 17/1111:48 -
1 stop13h 42m
Sat 28/1113:00 -
2 stops35h 25m
Deal found 6/9£717

Find flight deals from San Diego to London

Round-trip from

£713

One-way from

£167

Popular in

June

Cheapest in

April

Average price

£716

Good round-trip deal

£802 or less

Good one-way deal

£426 or less
Lufthansa
  • Lufthansa
  • 4/10-21/10
  • 4 total stops
  • 41h 12m total
  • San Diego to London
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JetBlue
  • JetBlue
  • 27/9-31/12
  • 1 total stop
  • 15h 07m total
  • San Diego to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£161 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
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Average for round-trip flights in September 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

Tue 23/2

19:30-20:10

2 stops16h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£240

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sun 21/2

10:00-11:35

1 stop17h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£240

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Wed 24/2

08:00-09:00

1 stop17h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£240
Fastest return journey

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Thu 5/11

21:40-20:55

1 stop15h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Thu 4/3

21:05-20:45

1 stop15h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Wed 4/11

21:40-21:40

1 stop16h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Tue 2/3

06:20-10:30

2 stops20h 10m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Mon 9/11

21:40-21:40

1 stop16h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sat 20/2

22:30-06:50

2 stops24h 20m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

San DiegoLondon

SAN San Diego - LHR London Heathrow

SANLHR

San Diego

Sun 28/2

22:40-06:50

2 stops24h 10m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

Flights are sorted by cheapest return flights first.

Deals found on 4/9

Showing 1-10 of 60 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 £570). Flying from San Diego to London in June is currently the most expensive (average of £1,078). 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.

Weekly flight availability from San Diego to London

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

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

Airfare is typical for this route at the moment.
San Diego to London flights typically cost between £601 and £775 in October.
The cheapest return price found within the last 5 days was £713 on Lufthansa (4 Oct–21 Oct).

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 55 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
8,209 reviews
Check prices

Boarding

7.0

Food

6.4

Crew

7.7

Comfort

6.8

Entertainment

6.5

Overall

6.7

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
8,209 reviews
British Airways
6.7
Okay
8,209 reviews
Check prices

Boarding

7.0

Food

6.4

Crew

7.7

Comfort

6.8

Entertainment

6.5

Overall

6.7

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 9 outbound flights to London per day.

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

    Delta, Virgin Atlantic, and SWISS can get you from San Diego to London in just under 15h 48m. Your travel time can differ by up to 3h 39m. 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 (£504), offers the cheapest pricing from San Diego to London. British Airways is currently priced 29% 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 Aer Lingus (83%), Finnair (83%) and Iberia (83%).

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

    On average you can expect to pay £646 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 £601.

  • 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 £570). Flying from San Diego to London in June is currently the most expensive (average of £1,078). 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?

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Top airline flying from San Diego to London

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£504Average£816FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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