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Finnair flights from London Heathrow Airport to San Diego (LHR - SAN)

LHR — SAN
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

One-way from

£357

Return from

£580

Popular in

July

Cheapest in

January

Average price (all airlines)

£569
Finnair
  • Finnair
  • 4/2
  • Nonstop
  • 11h 20m total
  • London to San Diego
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Finnair
  • Finnair
  • 24/11-9/12
  • Nonstop
  • 21h 55m total
  • London to San Diego
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Highest demand for flights from London Heathrow to San Diego; 15% 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 4 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 1,332 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 17 October 2025.

Mon 24/1112:50LHR - SAN
Nonstop11h 20mFinnair
Tue 9/1218:00SAN - LHR
Nonstop10h 35mFinnair
Deal found 15/10£580
Thu 13/1112:50LHR - SAN
Nonstop11h 20mFinnair
Tue 18/1118:00SAN - LHR
Nonstop10h 35mFinnair
Deal found 16/10£1,039
Tue 21/1010:30LHR - SAN
1 stop15h 34mFinnair
Wed 31/1218:00SAN - LHR
Nonstop10h 35mFinnair
Deal found 15/10£1,359

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 £654. 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.

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Other Finnair flights from Heathrow

Browse through other Finnair flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 17 October 2025.
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See what others are saying about Finnair

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 17 October 2025.
Finnair
7.6
Good
1,332 reviews
Check prices
Overview

Crew

8.1

Comfort

7.4

Entertainment

6.9

Food

6.7

Boarding

7.6

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