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

LHR — SAN
21 Apr — 28 Apr1
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 22 March 2026.

One-way from

£414

Return from

£582

Popular in

July

Cheapest in

February

Average price (all airlines)

£607
Finnair
  • Finnair
  • 13/5
  • Nonstop
  • 11h 20m total
  • London to San Diego
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Finnair
  • Finnair
  • 13/5-17/5
  • 3 total stops
  • 34h 20m total
  • London to San Diego
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Highest demand for flights from London Heathrow to San Diego; 12% potential price increase.
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Best time to find cheap flights from London Heathrow to San Diego; 2% 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 1,374 Cheapflights users is that Finnair is a 7.7/10. 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 £675?

    There are 6 flights available on Finnair from London Heathrow Airport to San Diego for under £675. 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 22 March 2026.

Sat 18/412:30
LHR
-
SAN
1 stop18h 40m
Finnair
Tue 21/409:12
SAN
-
LHR
1 stop14h 53m
Finnair
Deal found 18/3£611
Mon 20/410:05
LHR
-
SAN
1 stop16h 00m
Finnair
Mon 4/519:40
SAN
-
LHR
Nonstop10h 40m
Finnair
Deal found 22/3£620
Sun 19/409:15
LHR
-
SAN
1 stop17h 45m
Finnair
Sun 26/421:45
SAN
-
LHR
1 stop27h 20m
Finnair
Deal found 22/3£630

Weekly Finnair flight availability from London Heathrow Airport to San Diego

The most Finnair flights from LHR to SAN are scheduled on a Monday (1 on average). You will have fewer Finnair flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 22 March 2026.
Virgin Atlantic 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 22 March 2026.
Finnair
7.7
Good
1,374 reviews
Check prices
Overview

Entertainment

6.9

Comfort

7.5

Food

6.7

Boarding

7.7

Crew

8.2

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