How do most travelers feel about Finnair?

The general consensus from 1,339 Cheapflights users is that Finnair is a 7.6/10. 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 £747?

There are 9 flights available on Finnair from London Heathrow Airport to San Diego for under £747. These prices can change based on many factors including date and time. To find LHR-SAN flight prices for your dates, click here.

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.

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).

£362+ 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	£362
Return from	£545
Popular in	July
Cheapest in	January
Average price (all airlines)	£747

Finnair
3/3
Nonstop
11h 20m total
London to San Diego

Search Deals

Finnair
6/4-16/4
3 total stops
33h 37m total
London to San Diego

Search Deals

Highest demand for flights from London Heathrow to San Diego; 13% potential price increase.

Search Deals

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

Search Deals

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

Search Deals

Can I get a flight from London Heathrow Airport to San Diego on Finnair for under £747?
There are 9 flights available on Finnair from London Heathrow Airport to San Diego for under £747. 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 1,339 Cheapflights users is that Finnair is a 7.6/10. 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

Enter your travel dates to find the best prices.

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 21 December 2025.

Thu 15/116:30LHR - SAN

1 stop34h 42mFinnair

Sat 7/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£546

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Mon 9/319:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£552

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Wed 4/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£582

Best Finnair flights from Heathrow to San Diego
Discover carefully curated Finnair flight deals from Heathrow to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 December 2025.

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Thu 5/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£582

Wed 14/111:15LHR - SAN

1 stop19h 54mFinnair

Fri 6/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£660

Wed 18/312:50LHR - SAN

Nonstop11h 20mFinnair

Wed 15/419:40SAN - LHR

Nonstop10h 40mFinnair

Deal found 20/12£753

Direct Finnair flights from Heathrow to San Diego
Explore direct Finnair flight options from Heathrow to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 December 2025.

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Mon 9/319:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£552

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Wed 4/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£582

Fri 1/514:30LHR - SAN

Nonstop11h 20mFinnair

Thu 17/1218:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£648

Last-minute Finnair flights from Heathrow to San Diego
Discover last-minute Finnair flight deals from Heathrow to San Diego. Data last updated 21 December 2025 and is based on user searches.

Thu 15/116:30LHR - SAN

1 stop34h 42mFinnair

Sat 7/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£546

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Mon 9/319:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£552

Wed 14/112:50LHR - SAN

Nonstop11h 20mFinnair

Wed 4/318:00SAN - LHR

Nonstop10h 35mFinnair

Deal found 21/12£582

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 21 December 2025.

Tue 3/312:50LHR - SAN

Nonstop11h 20mFinnair

Deal found 19/12£362

Tue 21/414:30LHR - SAN

Nonstop11h 20mFinnair

Deal found 19/12£374

Sun 19/414:25LHR - SAN

Nonstop11h 20mFinnair

Deal found 20/12£419

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.

Prices

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 £375. Conversely, traveling with Finnair from London Heathrow Airport to San Diego in August will be the most expensive, with an average cost of £657. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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.

Browse thousands of different options on Cheapflights for your next trip

See what others are saying about Finnair

Finnair

7.6

Good

1,339 reviews

Check prices

Overview

Recent reviews

4.0

Mediocre|Sept 2025

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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.

1 out of 447

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.

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 21 December 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 £747?

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 21 December 2025.

Explore the most affordable Finnair flight options available from Heathrow to San Diego. Find the lowest fares with prices last updated on 21 December 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

Temperature in San Diego 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 21 December 2025.

See what others are saying about Finnair

Overview

100% Free

Book with Flexibility

Travel Smart

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 21 December 2025.