How do most travelers feel about Finnair?

The general consensus from 1,468 Cheapflights users is that Finnair is a 7.5/10. Select your travel dates above for updated prices on flights from London Heathrow Airport to San Diego (LHR-SAN).

Can I get a flight from London Heathrow Airport to San Diego on Finnair for under £800?

There are 1 flights available on Finnair from London Heathrow Airport to San Diego for under £800. These prices can change based on many factors including date and time. To find LHR-SAN flight prices for your dates, click here.

£546+ Finnair Flights from Heathrow 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 Heathrow to San Diego in 2025

One-way from	£546
Return from	£841
Popular in	July
Cheapest in	January
Average price (all airlines)	£576

Finnair
27/10
Nonstop
11h 15m total
London to San Diego

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Finnair
30/6-14/7
Nonstop
21h 35m total
London to San Diego

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Highest demand for flights from London Heathrow to San Diego; 17% potential price increase.

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

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

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Can I get a flight from London Heathrow Airport to San Diego on Finnair for under £800?
There are 1 flights available on Finnair from London Heathrow Airport to San Diego for under £800. These prices can change based on many factors including date and time. To find LHR-SAN flight prices for your dates, click here.
How do most travelers feel about Finnair?
The general consensus from 1,468 Cheapflights users is that Finnair is a 7.5/10. Select your travel dates above for updated prices on flights from London Heathrow Airport to San Diego (LHR-SAN).

Find Finnair flight deals from Heathrow to San Diego

Cheapest Finnair flights from Heathrow to San Diego
Explore the most affordable Finnair flight options available from Heathrow to San Diego. Find the lowest fares with prices last updated on 20 June 2025.

Mon 30/614:55LHR - SAN

Nonstop11h 05mFinnair

Mon 14/719:50SAN - LHR

Nonstop10h 30mFinnair

Deal found 18/6£841

Travel insights for Finnair flights from Heathrow to San Diego

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

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

Currently, the most affordable month to book a Finnair flight from London Heathrow Airport to San Diego in September, with an average price of £374. Conversely, traveling with Finnair from London Heathrow Airport to San Diego in August will be the most expensive, with an average cost of £569. 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 Heathrow to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Heathrow 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.

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See what others are saying about Finnair

Finnair

7.6

Good

1,294 reviews

Check prices

Overview

Recent reviews

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 :(

2.0

Poor|Apr 2025

Poor

1 out of 432

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Finnair flights from London Heathrow Airport to San Diego (LHR - 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 Heathrow to San Diego in 2025

Find detailed information about Finnair flights from Heathrow to San Diego. Explore the options provided by Finnair to plan your journey from Heathrow to San Diego. Data last updated 20 June 2025.

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

Can I get a flight from London Heathrow Airport to San Diego on Finnair for under £800?

How do most travelers feel about Finnair?

Find Finnair flight deals from Heathrow to San Diego

Cheapest Finnair flights from Heathrow to San DiegoExplore the most affordable Finnair flight options available from Heathrow to San Diego. Find the lowest fares with prices last updated on 20 June 2025.

Explore the most affordable Finnair flight options available from Heathrow to San Diego. Find the lowest fares with prices last updated on 20 June 2025.

Travel insights for Finnair flights from Heathrow to San Diego

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

What is the cheapest month to book a flight from London Heathrow Airport 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 Heathrow to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Heathrow 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 Heathrow 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 20 June 2025.

See what others are saying about Finnair

Overview

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Cheapest Finnair flights from Heathrow to San Diego
Explore the most affordable Finnair flight options available from Heathrow to San Diego. Find the lowest fares with prices last updated on 20 June 2025.