How do most travelers feel about Finnair?

The average rating from 1,468 Finnair reviews by Cheapflights users is 7.4 (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.

£515+ Finnair Flights from London to San Diego

Cheapflights users flying from London to San Diego on Finnair typically fly into San Diego and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to San Diego in 2025

One-way from	£518
Return from	£515
Popular in	July
Cheapest in	February
Average price (all airlines)	£498

Finnair
9/10
Nonstop
11h 05m total
London to San Diego

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Finnair
21/10-7/11
4 total stops
58h 44m total
London to San Diego

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Highest demand for flights from London to San Diego; 15% potential price increase.

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Best time to find cheap flights from London to San Diego; 3% potential price drop.

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Average price for all London to San Diego flights (one-way and round-trip).

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How do most travelers feel about Finnair?
The average rating from 1,468 Finnair reviews by Cheapflights users is 7.4 (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.

Find Finnair flight deals from London to San Diego

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 18 September 2025.

Tue 21/1016:35LHR - SAN

2 stops27h 29mFinnair

Fri 7/1115:05SAN - LHR

2 stops31h 15mFinnair

Deal found 17/9£515

Tue 21/1010:30LHR - SAN

1 stop15h 34mFinnair

Sat 25/1022:45SAN - LHR

1 stop26h 05mFinnair

Deal found 17/9£553

Thu 16/1011:30LHR - SAN

Nonstop11h 20mFinnair

Sun 26/1022:31SAN - LHR

1 stop27h 44mFinnair

Deal found 15/9£559

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 18 September 2025.

Tue 21/1016:35LHR - SAN

2 stops27h 29mFinnair

Fri 7/1115:05SAN - LHR

2 stops31h 15mFinnair

Deal found 17/9£515

Mon 1/1216:15LHR - SAN

2 stops33h 49mFinnair

Sat 6/1210:47SAN - LHR

1 stop36h 03mFinnair

Deal found 17/9£525

Tue 21/1010:30LHR - SAN

1 stop15h 34mFinnair

Sat 25/1022:45SAN - LHR

1 stop26h 05mFinnair

Deal found 17/9£553

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 18 September 2025.

Tue 18/1112:50LHR - SAN

Nonstop11h 20mFinnair

Sun 30/1118:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 18/9£583

Sat 13/1212:50LHR - SAN

Nonstop11h 20mFinnair

Sat 10/118:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 16/9£681

Fri 19/1212:50LHR - SAN

Nonstop11h 20mFinnair

Sun 28/1218:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 16/9£807

Last-minute Finnair flights from London to San Diego
Discover last-minute Finnair flight deals from London to San Diego. Data last updated 18 September 2025 and is based on user searches.

Tue 21/1016:35LHR - SAN

2 stops27h 29mFinnair

Fri 7/1115:05SAN - LHR

2 stops31h 15mFinnair

Deal found 17/9£515

Tue 21/1010:30LHR - SAN

1 stop15h 34mFinnair

Sat 25/1022:45SAN - LHR

1 stop26h 05mFinnair

Deal found 17/9£553

Thu 16/1011:30LHR - SAN

Nonstop11h 20mFinnair

Sun 26/1022:31SAN - LHR

1 stop27h 44mFinnair

Deal found 15/9£559

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 18 September 2025.

Thu 9/1014:55LHR - SAN

Nonstop11h 05mFinnair

Deal found 16/9£518

Thu 1/112:50LHR - SAN

Nonstop11h 20mFinnair

Deal found 17/9£540

Fri 31/1012:50LHR - SAN

Nonstop11h 20mFinnair

Deal found 17/9£598

Travel insights for Finnair flights from London to San Diego

Get recent, data-driven insights about Finnair flights from London to San Diego including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London to San Diego with Finnair?

Currently, the most affordable month to book a Finnair flight from London to San Diego in September, with an average price of £368. Conversely, traveling with Finnair from London to San Diego in August will be the most expensive, with an average cost of £644. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in San Diego 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

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.

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

See what others are saying about Finnair

Finnair

7.6

Good

1,324 reviews

Check prices

Overview

Recent reviews

8.0

Very Good|Jul 2025

It was okay

2.0

Poor|Jun 2025

They stranded us in the airport

10.0

Wonderful|May 2025

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

10.0

Wonderful|May 2025

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.

6.0

Okay|May 2025

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

1 out of 442

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Finnair flights from London to San Diego (LON - SAN)

Cheapflights users flying from London to San Diego on Finnair typically fly into San Diego and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to San Diego in 2025

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 18 September 2025.

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

How do most travelers feel about Finnair?

Find Finnair flight deals from London to San Diego

Cheapest Finnair flights from London to San DiegoExplore the most affordable Finnair flight options available from London to San Diego. Find the lowest fares with prices last updated on 18 September 2025.

Explore the most affordable Finnair flight options available from London to San Diego. Find the lowest fares with prices last updated on 18 September 2025.

Travel insights for Finnair flights from London to San Diego

Get recent, data-driven insights about Finnair flights from London to San Diego including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London to San Diego with Finnair?

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

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.

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.

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 18 September 2025.

See what others are saying about Finnair

Overview

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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 18 September 2025.