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$463+ Cheap flights from San Diego (SAN) to London (LON)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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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 Wednesday or Tuesday and return on a Wednesday

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 junio 12, 2025.

Round-trip from

$672
(United)

One-way from

$463
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$1,378

Good round-trip deal

$681 or less

Good one-way deal

$474 or less
From San Diego to London (LON)
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One-way flight from San Diego to London (LON)
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Highest demand for flights based on searches. 25% potential increase in price ($298 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in June 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

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 junio 12, 2025.

This United deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/47:27 pmSAN - LHR
2 stops28h 13mMultiple Airlines
mié. 8/204:25 pmLHR - SAN
1 stop31h 00mMultiple Airlines
Deal found 6/12$672
This Booking.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/47:50 pmSAN - LHR
Nonstop10h 30mBritish Airways
mié. 8/2011:30 amLHR - SAN
Nonstop11h 20mBritish Airways
Deal found 6/11$673
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/239:25 pmSAN - LGW
1 stop24h 55mMultiple Airlines
lun. 9/299:50 amLGW - SAN
2 stops21h 54mMultiple Airlines
Deal found 6/11$674
This Ovago deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/1710:43 amSAN - LHR
1 stop15h 42mLufthansa
lun. 9/17:10 pmLHR - SAN
1 stop28h 15mLufthansa
Deal found 6/11$675
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/49:20 amSAN - LHR
1 stop13h 20mAmerican Airlines
mié. 8/2011:30 amLHR - SAN
Nonstop11h 20mAmerican Airlines
Deal found 6/11$676
This SWISS deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/194:11 pmSAN - LCY
2 stops18h 34mSWISS
mié. 8/279:25 amLCY - SAN
2 stops19h 00mSWISS
Deal found 6/11$677
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/189:44 amSAN - LHR
1 stop16h 06mDelta
mié. 9/176:15 amLHR - SAN
2 stops17h 52mDelta
Deal found 6/10$682
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/78:10 amSAN - LHR
1 stop17h 25mAir Canada
mar. 10/281:25 pmLHR - SAN
2 stops28h 28mAir Canada
Deal found 6/11$684
This Lufthansa deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/225:15 pmSAN - STN
1 stop17h 45mLufthansa
mar. 9/307:50 pmSTN - SAN
1 stop27h 35mLufthansa
Deal found 6/11$684
This Iberia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/162:48 pmSAN - LHR
1 stop31h 37mIberia
mar. 8/2610:30 amLHR - SAN
1 stop17h 34mIberia
Deal found 6/11$685
This SWISS deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/201:59 pmSAN - LGW
2 stops19h 51mSWISS
mar. 11/116:40 pmLGW - SAN
2 stops33h 48mSWISS
Deal found 6/10$688
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/254:03 pmSAN - LHR
1 stop12h 17mUnited Airlines
mar. 9/3011:25 amLHR - SAN
2 stops16h 51mUnited Airlines
Deal found 6/10$691

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated junio 12, 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

lun. 8/4

7:27 pm-7:40 am

2 stops28h 13m

London Heathrow

mié. 8/20

4:25 pm-3:25 pm

1 stop31h 00m

$672

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 8/4

7:50 pm-2:20 pm

Nonstop10h 30m

London Heathrow

mié. 8/20

11:30 am-2:50 pm

Nonstop11h 20m

$673

San DiegoLondon

SAN - LHR

SANLHR

San Diego

dom. 8/17

10:43 am-10:25 am

1 stop15h 42m

London Heathrow

lun. 9/1

7:10 pm-3:25 pm

1 stop28h 15m

$675

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 8/4

9:20 am-6:40 am

1 stop13h 20m

London Heathrow

mié. 8/20

11:30 am-2:50 pm

Nonstop11h 20m

$676

San DiegoLondon

SAN - LCY

SANLCY

San Diego

mar. 8/19

4:11 pm-6:45 pm

2 stops18h 34m

London City

mié. 8/27

9:25 am-8:25 pm

2 stops19h 00m

$677

San DiegoLondon

SAN - LGW

SANLGW

San Diego

lun. 8/4

9:00 am-10:00 am

1 stop17h 00m

London Gatwick

mié. 8/20

2:00 pm-8:29 pm

1 stop38h 29m

$677

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 8/18

9:44 am-9:50 am

1 stop16h 06m

London Heathrow

mié. 9/17

6:15 am-4:07 pm

2 stops17h 52m

$682

San DiegoLondon

SAN - LHR

SANLHR

San Diego

mar. 10/7

8:10 am-9:35 am

1 stop17h 25m

London Heathrow

mar. 10/28

1:25 pm-10:53 am

2 stops28h 28m

$684

San DiegoLondon

SAN - LHR

SANLHR

San Diego

sáb. 8/16

2:48 pm-6:25 am

1 stop31h 37m

London Heathrow

vie. 8/29

4:25 pm-10:53 pm

1 stop14h 28m

$685

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 8/25

4:03 pm-12:20 pm

1 stop12h 17m

London Heathrow

mar. 9/30

11:25 am-8:16 pm

2 stops16h 51m

$691

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 57 results
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The best insider tips for San Diego to London flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to London trip
Airports
SAN

Plan to arrive at SAN two hours before your flight to avoid congestion and ensure a smooth departure.

Read more about SANby Blane Bachelor
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station.

Read more about LHRby Ramsey Qubein
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 round-trip 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 round-trip flight from San Diego to London. Price data was last updated on June 9, 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, November is the cheapest month in which you can book a flight from San Diego to London (average of $661). Flying from San Diego to London in June is currently the most expensive (average of $1,108). 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 junio 12, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to London at noon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from San Diego to London?

Use this chart to determine the cheapest time to fly round-trip from San Diego to London. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Diego to London flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 junio 12, 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 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 junio 12, 2025.
To help decide which airline to fly from San Diego to London, see what other customers have to say about Delta, Alaska Airlines and Porter Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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.
Alaska Airlines
8.0
Very good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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.
Porter Airlines
8.0
Very good
288 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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.
Air Transat
7.8
Good
396 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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?

    For a flight from San Diego to London, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 7 outbound flights to London per day. 10 airlines have flights to London from San Diego on a regular basis.

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

    According to our current data, British Airways ($673), Lufthansa ($675), and American Airlines ($676) offers the cheapest pricing from San Diego to London. British Airways is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from San Diego to London are American Airlines ($463), Air Canada ($466), and JetBlue ($468).

  • 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?

    Consider American Airlines (81%), Alaska Airlines (81%) or British Airways (81%) when booking your flight. These represent the most reliable airlines when flying from San Diego to London.

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

    Looking at all options, your cheapest flight can be booked for $374. While the most popular route (San Diego - London Heathrow) can be booked for $593 on average our data indicates $2,630 when flying from San Diego to London.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from San Diego to London (average of $661). Flying from San Diego to London in June is currently the most expensive (average of $1,108). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Folkestone
Borehamwood
Sutton
Aylesbury
Chelmsford
Brentwood
Chichester
Wembley
Arundel

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Alternative routes for San Diego to London

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Top 10 airlines flying from San Diego to London

Discover the top 10 airlines 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 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$578Average$859FlexibilityNo cancel feeOn-time71%
IberiaCheapest$589Average$795FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$590Average$771FlexibilityNo cancel feeOn-time76%
FinnairCheapest$595Average$692FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$597Average$912FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$620Average$898FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$633Average$937FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$653Average$968FlexibilityNo cancel feeOn-time69%
DeltaCheapest$677Average$1,212FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$828Average$951FlexibilityNo cancel feeOn-time75%

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