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

LHR — SAN
19 Feb — 26 Feb1
1 adult
1 adult, Economy, 0 bags

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 2026

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 January 2026.

One-way from

£373

Return from

£460

Popular in

July

Cheapest in

January

Average price (all airlines)

£490
Finnair
  • Finnair
  • 13/5
  • Nonstop
  • 11h 20m total
  • London to San Diego
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Finnair
  • Finnair
  • 23/2-9/3
  • 1 total stop
  • 26h 23m total
  • London to San Diego
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Highest demand for flights from London Heathrow to San Diego; 13% 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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  • How do most travelers feel about Finnair?

    The general consensus from 1,351 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 £520?

    There are 5 flights available on Finnair from London Heathrow Airport to San Diego for under £520. These prices can change based on many factors including date and time. To find LHR-SAN flight prices for your dates, click here.

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 20 January 2026.

Mon 23/210:35
LHR
-
SAN
1 stop15h 48m
Finnair
Mon 9/319:00
SAN
-
LHR
Nonstop10h 35m
Finnair
Deal found 20/1£460
Mon 23/216:15
LHR
-
SAN
2 stops34h 08m
Finnair
Tue 3/310:50
SAN
-
LHR
1 stop13h 45m
Finnair
Deal found 20/1£497
Mon 26/108:20
LHR
-
SAN
1 stop18h 52m
Finnair
Mon 16/218:00
SAN
-
LHR
Nonstop10h 35m
Finnair
Deal found 19/1£514

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 February, with an average price of £386. Conversely, traveling with Finnair from London Heathrow Airport to San Diego in December will be the most expensive, with an average cost of £981. 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

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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 January 2026.
British Airways flights from London Heathrow to San Diego

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 20 January 2026.
Finnair
7.6
Good
1,351 reviews
Check prices
Overview

Boarding

7.7

Entertainment

6.9

Food

6.7

Crew

8.2

Comfort

7.4

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