Finnair Cheap Flights from London to San Diego

View €438 flight on Tue, 2 Dec 2025Opens in a new window
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Prices were available within the past 7 days and start at €438 for one-way flights and €670 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Mon, 24 Nov - Tue, 9 Dec
LHR
London
SAN
San Diego
€670 Return, just found
€670
Return
just found
Select Finnair flight, departing Mon, 24 Nov from London to San Diego, returning Tue, 9 Dec, priced at €670 just found

Frequently asked questions

How much is a Finnair flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
You'll discover budget-friendly return Finnair flights from €670 from LHR to SAN by organising your results from "Price (lowest to highest)" on Expedia. Or search for deals from €438 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LHR to SAN with Finnair?
January is one of the most affordable months to travel to San Diego with Finnair. You could also find great deals on return and one-way tickets in November.
Does Finnair fly nonstop from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
To figure out if there's a direct route from LHR to SAN with Finnair or any other airlines, select the "Nonstop" filter when browsing for flights.
What airports does Finnair fly into in San Diego?
Jump on a Finnair flight from Heathrow Airport (LHR) to San Diego, and you'll likely come in to San Diego Intl. Airport (SAN). This is the airline's main hub in this destination.
What kind of luggage can I take on a Finnair flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
On a standard economy flight with Finnair from LHR to SAN, you can bring 1 checked-in bag up to 23 kgs (50 lbs) with dimensions no larger than 157 centimetres in total. For carry-on, you're allowed 1 cabin bag weighing up to 10 kgs (22 lbs) and measuring less than 23 centimetres x 38 centimetres x 38 centimetres. Weight and size allowances can vary based on your fare type and cabin class. To make sure you're not hit with extra fees at the airport, double-check your Finnair booking or look up the airline's website before you start packing.
Can I change or cancel my Finnair flight from Heathrow Airport (LHR) to San Diego Intl. Airport (SAN)?
Changes are generally free within 24 hours of booking, but your airline may add a charge after that. For further details about modifying your flights, go to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to change your itinerary without being charged, tick the "No cancel fee" or "Changes included" filter when planning your next trip.

Travel information

Origin airport
Heathrow
Destination airport
San Diego Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic, WestJet
Popular airline
American Airlines
Distance
8756 km
Average flight time
3 hours 12 mins

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