Finnair flights from London to San Diego (LON - SAN)
LON — SAN
10 Oct — 17 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Find Finnair flight deals from London to San Diego
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest Finnair flights from London to San Diego
Explore the most affordable Finnair flight options available from London to San Diego. Find the lowest fares with prices last updated on 10 September 2026.
Tue 20/1016:25 -
1 stop33h 28m
Wed 28/1019:00 -
Nonstop10h 40m
Deal found 6/9£617
Tue 20/1010:20 -
2 stops39h 33m
Tue 27/1019:00 -
Nonstop10h 40m
Deal found 5/9£620
Wed 21/1009:45 -
1 stop21h 34m
Wed 28/1011:17 -
1 stop13h 58m
Deal found 6/9£627
Best Finnair flights from London to San Diego
Discover carefully curated Finnair flight deals from London to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.
Tue 20/1016:25 -
1 stop33h 28m
Wed 28/1019:00 -
Nonstop10h 40m
Deal found 7/9£617
Sat 14/1112:45 -
Nonstop11h 25m
Sun 22/1118:00 -
Nonstop10h 40m
Deal found 5/9£630
Tue 20/1010:20 -
2 stops39h 33m
Sat 24/1013:12 -
1 stop36h 23m
Deal found 7/9£709
Direct Finnair flights from London to San Diego
Explore direct Finnair flight options from London to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.
Sat 14/1112:45 -
Nonstop11h 25m
Sun 22/1118:00 -
Nonstop10h 40m
Deal found 5/9£630
Tue 20/1014:30 -
Nonstop11h 20m
Tue 27/1019:00 -
Nonstop10h 40m
Deal found 6/9£643
Tue 20/1014:30 -
Nonstop11h 20m
Wed 28/1019:00 -
Nonstop10h 40m
Deal found 6/9£672
Last-minute Finnair flights from London to San Diego
Discover last-minute Finnair flight deals from London to San Diego. Data last updated 10 September 2026 and is based on user searches.
Tue 20/1016:25 -
1 stop33h 28m
Wed 28/1019:00 -
Nonstop10h 40m
Deal found 6/9£617
Tue 20/1010:20 -
2 stops39h 33m
Tue 27/1019:00 -
Nonstop10h 40m
Deal found 5/9£620
Wed 21/1009:45 -
1 stop21h 34m
Wed 28/1011:17 -
1 stop13h 58m
Deal found 6/9£627
One-way Finnair flights to San Diego
Search for one-way Finnair flight options to San Diego. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.
Fri 15/112:45 -
Nonstop11h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/9£463
Thu 10/1212:45 -
Nonstop11h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/9£481
Sat 7/1112:45 -
Nonstop11h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/9£503
How do most travelers feel about Finnair?
The average rating from 1,431 Finnair reviews by Cheapflights users is 7.6 (out of a maximum rating of 10). If you are considering flying LON-SAN with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to San Diego with Finnair.
Can I get a flight from London to San Diego on Finnair for under £664?
There are 7 flights available on Finnair from London to San Diego for under £664. These prices can change based on many factors including date and time. To find LON-SAN flight prices for your dates, click here.
Find detailed information about Finnair flights from London to San Diego. Explore the options provided by Finnair to plan your journey from London to San Diego. Data last updated 10 September 2026.
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).
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.
LON-SAN
LHR-SAN
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines serving San Diego
Alternative routes
Complete your trip
Other carriers
Other destinations
Popular flights
Fly from London to San Diego on another airline
Consider alternative airlines that service the San Diego area. Flight routes are based on user searches made on Cheapflights and were last updated on 10 September 2026.
Browse through other Finnair flights departing from London. Flight routes are based on user searches made on Cheapflights and were last updated on 10 September 2026.
If San Diego is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 10 September 2026.
Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.
Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 10 September 2026.
The flight from Helsinki to Toronto was very cramped. No leg space and no room to even walk. Very bad experience
8.0
Very Good|Jul 2026
Very limited food provided. Limited drinks, lights out for 10 of 12.30 flights. Very few staff.
2.0
Poor|Jun 2026
Lost our luggage and took two days to get it back. Ruined the trip.
10.0
Wonderful|Jun 2026
Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
10.0
Wonderful|May 2026
Positive
1 out of 478
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.