Cheap flights from London to San Diego from £443
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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from London to San Diego are usually found in March or February, booked 79 days in advance, depart on a Friday or Wednesday and return on a Sunday
Cheap flight deals from London to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Diego (SAN). 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 30 April 2025.
Find flight deals from London to San Diego
Cheapest flights from London to San DiegoExplore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from London to San Diego 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 30 April 2025.
Use the filters below to find and compare flights from London to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 15/9
11:30-14:50
Nonstop11h 20m
San Diego
Tue 30/9
10:34-07:20
1 stop12h 46m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 9/5
09:30-19:45
1 stop18h 15m
San Diego
Fri 23/5
11:15-11:10
1 stop15h 55m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Wed 10/9
14:55-18:00
Nonstop11h 05m
San Diego
Wed 24/9
13:12-10:30
1 stop13h 18m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Wed 24/9
14:10-16:07
1 stop33h 57m
San Diego
Thu 2/10
16:55-09:35
2 stops32h 40m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Thu 25/9
06:30-15:25
2 stops16h 55m
San Diego
Thu 2/10
10:38-07:25
1 stop12h 47m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Thu 25/9
13:05-19:51
1 stop14h 46m
San Diego
Wed 1/10
08:00-06:55
1 stop14h 55m
LondonSan Diego
LCY - SAN
LCYSAN
London City
Tue 23/9
08:45-20:48
2 stops20h 03m
San Diego
Tue 30/9
06:45-16:25
2 stops25h 40m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 9/5
06:30-16:25
2 stops17h 55m
San Diego
Fri 23/5
11:15-11:20
1 stop16h 05m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Wed 24/9
06:00-18:20
2 stops20h 20m
San Diego
Fri 3/10
11:17-12:20
1 stop17h 03m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 9/5
14:55-18:00
Nonstop11h 05m
San Diego
Fri 23/5
09:23-09:00
1 stop15h 37m
Best time to book a flight from London to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to San Diego
How far ahead should I book a flight from London to San Diego?
Use this chart to determine the optimal time to book a return flight from London to San Diego. Price data was last updated on 25 April 2025.
The best time to book flights from London to San Diego is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London to San Diego?
Currently, January is the cheapest month in which you can book a flight from London to San Diego (average of £585). Flying from London to San Diego in July is currently the most expensive (average of £920). 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 LON to SAN?
Find hourly flight availability from London to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.
A simple way to save on the total cost of your ticket is to fly from London to San Diego at midday. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the afternoon.
What is the cheapest day to fly from London to San Diego?
Use this chart to determine the cheapest time to fly return from London to San Diego. Price data was last updated on 30 June 2024.
Travellers seeking maximum savings on their London to San Diego flight should consider departing on Wednesday evenings 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 London to San Diego
Explore weekly flight availability from London to San Diego. 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 30 April 2025.
The most flights from LON to SAN are scheduled on a Monday (8 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 San Diego by month
Plan your trip to San Diego by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.
Temperature in San Diego by month
Plan your trip to San Diego by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated 30 April 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from London to San Diego to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Comfort
Overall
Entertainment
Boarding
Food
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from London to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Fly from London to San Diego on these airlines
Choose from the following airlines for your flight from London to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 30 April 2025.
Top 10 airlines flying from London to San Diego
Discover the top 10 airlines that operate flights from London to San Diego. 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 30 April 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from London to San Diego?
Cheapflights makes it easy to find London to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from London to San Diego?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from London.
Can Cheapflights find flights from London to San Diego with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Diego flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from London to San Diego become cheaper?
Yes! Start tracking prices for London to San Diego flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.