$503 Cheap Finnair flights Los Angeles (LAX) to London (LHR)

View $503 flight on Wed, Oct 1, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$503 Cheap Finnair flights Los Angeles (LAX) to London (LHR)

Prices were available within the past 7 days and start at $503 for one-way flights and $604 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Tue, Nov 18 - Mon, Dec 1
LAX
Los Angeles
LHR
London
$604 Roundtrip, found 3 hours ago
$604
Roundtrip
found 3 hours ago
Select Finnair flight, departing Tue, Nov 18 from Los Angeles to London, returning Mon, Dec 1, priced at $604 found 3 hours ago
Flights from Los Angeles (LAX) to London (LHR)
Origin airport
Los Angeles Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
British Airways
Distance
5442 mi
Average flight time
18 hours 28 mins

Frequently asked questions

How much is a Finnair flight from Los Angeles Intl. Airport (LAX) to Heathrow Airport (LHR)?
Scoring cheap one-way Finnair flights from LAX to LHR from $503 on Expedia is easy --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $604 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LAX to LHR with Finnair?
Browse for round-trip or one-way flights to London in January or February. You could find cheaper fares with Finnair during these off-peak months.
What is the cheapest time to book flights from Los Angeles Intl. Airport (LAX) to Heathrow Airport (LHR) with Finnair?
To find cheap flights from LAX to LHR with Finnair, begin your search about one month before your planned departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another good tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Finnair fly nonstop from Los Angeles Intl. Airport (LAX) to Heathrow Airport (LHR)?
Click on the "Nonstop" filter when browsing for direct Finnair flights from LAX to LHR. You'll also be able to compare other carriers offering the same nonstop route.
What is the earliest Finnair flight from LAX to LHR?
Sort your results by "Early Morning" and "Morning" to see the earliest flights from LAX to LHR. Leaving early means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Finnair fly into in London?
Heathrow Airport (LHR) is the main London gateway for Finnair flights from Los Angeles Intl. Airport (LAX).
What kind of luggage can I take on a Finnair flight from Los Angeles Intl. Airport (LAX) to Heathrow Airport (LHR)?
On a standard economy flight with Finnair from LAX to LHR, passengers can bring 1 checked-in bag up to 50 lb with dimensions no larger than 62 inches in total. For hand luggage, you can have 1 cabin bag weighing up to 22 lb and measuring less than 9 inches x 15 inches x 15 inches. Weight and size restrictions may differ based on your fare type and cabin class. To make sure you don't get caught with additional fees at the airport, double-check your Finnair booking or visit the airline's website before you begin packing.
Why fly with Finnair from LAX to LHR?
Heading from LAX to LHR with Finnair comes with a variety of perks, including a 4-star airline rating and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That's on top of the Finnair Plus points you can earn with Finnair.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Finnair flight from Los Angeles Intl. Airport (LAX) to Heathrow Airport (LHR)?
Changes are generally free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about altering your reservation, check out your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to make changes without being charged, tick the "Changes included" and "No cancel fee" filters when planning your next break.

Explore a world of travel with Expedia

*Available to One Key members.