Plan to arrive at SAN two hours early for international flights to avoid stress from potential traffic congestion.
$375+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
Apr 16 — Apr 231
1 adult, Economy
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Find cheap flights from San Diego to London with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 11, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $643 (Cheapflightsfares) |
One-way from | $375 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $750 |
Good round-trip deal | $825 or less |
Good one-way deal | $585 or less |
Find flight deals from San Diego to London
Cheapest flights from San Diego to LondonExplore 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 April 11, 2025.
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 April 11, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 4/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:40 pmSAN - LHR
Nonstop10h 45mBritish Airways
Sat 10/182:55 pmLHR - SAN
Nonstop11h 05mBritish Airways
Deal found 4/9![British Airways logo]()
$643
This StudentUniverse deal was found by Cheapflights users on 4/10. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1610:52 amSAN - LHR
1 stop14h 08mFinnair
Mon 10/274:15 pmLHR - SAN
2 stops34h 53mFinnair
Deal found 4/10![Finnair logo]()
$644
This Gotogate deal was found by Cheapflights users on 4/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:10 amSAN - LHR
2 stops17h 25mMultiple Airlines
Tue 10/76:50 amLHR - SAN
2 stops20h 45mMultiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$645
This Mytrip deal was found by Cheapflights users on 4/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:08 pmSAN - LGW
3 stops25h 12mMultiple Airlines
Wed 5/217:40 amLGW - SAN
3 stops42h 23mMultiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$645
This Iberia deal was found by Cheapflights users on 4/11. 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.
Fri 9/267:50 pmSAN - LHR
Nonstop10h 30mIberia
Fri 10/32:25 pmLHR - SAN
1 stop17h 00mIberia
Deal found 4/11![Iberia logo]()
$648
This Air Canada deal was found by Cheapflights users on 4/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/3012:35 pmSAN - LHR
1 stop15h 15mAir Canada
Tue 5/62:05 pmLHR - SAN
2 stops29h 38mAir Canada
Deal found 4/10![Air Canada logo]()
$649
This Delta deal was found by Cheapflights users on 4/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:00 amSAN - LGW
1 stop19h 00mDelta
Thu 9/412:00 pmLGW - SAN
1 stop20h 17mDelta
Deal found 4/11![Delta logo]()
$653
This SWISS deal was found by Cheapflights users on 4/10. 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.
Wed 4/233:57 pmSAN - LCY
2 stops17h 18mSWISS
Wed 5/79:25 amLCY - SAN
2 stops18h 59mSWISS
Deal found 4/10![SWISS logo]()
$659
This United deal was found by Cheapflights users on 4/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2511:00 amSAN - LHR
1 stop14h 40mUnited Airlines
Fri 5/22:05 pmLHR - SAN
2 stops29h 38mUnited Airlines
Deal found 4/10![United Airlines logo]()
$661
This Virgin Atlantic deal was found by Cheapflights users on 4/10. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/131:55 pmSAN - LCY
1 stop19h 25mVirgin Atlantic
Wed 5/215:50 pmLCY - SAN
1 stop26h 10mVirgin Atlantic
Deal found 4/10![Virgin Atlantic logo]()
$666
This Delta deal was found by Cheapflights users on 4/10. 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.
Thu 9/1810:10 pmSAN - LHR
1 stop13h 50mDelta
Thu 9/256:30 amLHR - SAN
1 stop13h 30mDelta
Deal found 4/10![Delta logo]()
$667
This Virgin Atlantic deal was found by Cheapflights users on 4/9. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/116:34 amSAN - LHR
1 stop15h 51mVirgin Atlantic
Sat 5/176:35 pmLHR - SAN
1 stop25h 25mVirgin Atlantic
Deal found 4/9![Virgin Atlantic logo]()
$668
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 April 11, 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
Wed 10/1
4:40 pm-11:25 am
Nonstop10h 45m
London Heathrow
Sat 10/18
2:55 pm-6:00 pm
Nonstop11h 05m
$643
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Fri 9/19
8:10 am-9:35 am
2 stops17h 25m
London Heathrow
Tue 10/7
6:50 am-7:35 pm
2 stops20h 45m
$645
San DiegoLondon
SAN - LGW
SANLGW
San Diego
Mon 5/5
9:08 pm-6:20 am
3 stops25h 12m
London Gatwick
Wed 5/21
7:40 am-6:03 pm
3 stops42h 23m
$645
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Fri 9/26
7:50 pm-2:20 pm
Nonstop10h 30m
London Heathrow
Fri 10/3
2:25 pm-11:25 pm
1 stop17h 00m
$648
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Wed 4/30
12:35 pm-11:50 am
1 stop15h 15m
London Heathrow
Tue 5/6
2:05 pm-11:43 am
2 stops29h 38m
$649
San DiegoLondon
SAN - LGW
SANLGW
San Diego
Tue 8/19
7:00 am-10:00 am
1 stop19h 00m
London Gatwick
Thu 9/4
12:00 pm-12:17 am
1 stop20h 17m
$653
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Wed 4/30
10:27 am-10:30 am
1 stop16h 03m
London Heathrow
Wed 5/7
2:55 pm-6:00 pm
Nonstop11h 05m
$657
San DiegoLondon
SAN - LCY
SANLCY
San Diego
Wed 4/23
3:57 pm-5:15 pm
2 stops17h 18m
London City
Wed 5/7
9:25 am-8:24 pm
2 stops18h 59m
$659
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Fri 4/25
11:00 am-9:40 am
1 stop14h 40m
London Heathrow
Fri 5/2
2:05 pm-11:43 am
2 stops29h 38m
$661
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Wed 4/23
2:27 pm-5:05 pm
2 stops18h 38m
London Heathrow
Mon 5/5
8:25 pm-8:55 pm
2 stops32h 30m
$665
Showing 1-10 of 56 results
Compare providers for flights from San Diego to London
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to London in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-London flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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
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 April 4, 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 $1,110). 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 April 11, 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 12% on your trip compared to booking a flight in the afternoon.
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 afternoons 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 April 11, 2025.
The most flights from SAN to LON are scheduled on a Wednesday (10 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 April 11, 2025.
To help decide which airline to fly from San Diego to London, see what other customers have to say about Delta, KLM and Finnair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.9
Comfort
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.9
Comfort
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.9
Comfort
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.9
Comfort
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.9
Comfort
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.9
Comfort
7.9
Crew
8.5
Food
7.3
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsHounslow
Hayes
Thornton Heath
Luton
Horley
Wembley
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Milton Keynes
Croydon
Borehamwood
Folkestone
Ilford
Aylesbury
Chelmsford
Sutton
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Diego to London
See prices for flight routes from nearby airports that may be better suited for you.
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 April 11, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$590 | Average$783 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$595 | Average$690 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$597 | Average$917 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$603 | Average$794 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$641 | Average$898 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$645 | Average$970 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$649 | Average$955 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$653 | Average$958 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$678 | Average$1,035 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$828 | Average$951 | FlexibilityNo cancel fee | On-time75% |