
Cheap Finnair flights from London to Tri-Cities (LHR to TRI)
Find The Best Day To Fly from London to Tri-Cities
Amazing Finnair LHR to TRI Flight Deals
The cheapest flights to Tri-Cities Regional found within the past 7 days were $1,578 round trip and one way. Prices and availability subject to change. Additional terms may apply.
Discover our best Finnair flight from London LHR to Tri-Cities TRI
To find the best deals on flights to London from Tri-Cities with Finnair, just enter your travel dates, filter by Finnair, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from London LHR to Tri-Cities TRI with Finnair
If you’re planning a round trip, booking return flights with Finnair is usually the most cost-effective option. With airfares ranging from $1,578 to $1,601, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way Finnair flights from London LHR to Tri-Cities TRI
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Finnair flight from London to Tri-Cities costs from . Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Tri-Cities TRI from London LHR with Finnair
To find a cheap Finnair flight from London LHR to Tri-Cities TRI, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on Finnair flights from London LHR to Tri-Cities TRI
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as August, or if you book a flight with a stopover.
Find nonstop flights from London LHR to Tri-Cities TRI with Finnair
If you’re keen to be on Tri-Cities soil fast, don’t waste time with a stopover—filter your search results to show direct Finnair flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for Finnair flights from London LHR to Tri-Cities TRI
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Tri-Cities TRI from London LHR with Finnair on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Travelers ❤️ these 🏨 after their flight to Tri-Cities

Reviewed on May 2, 2025

Reviewed on Apr 17, 2025

Reviewed on Apr 13, 2025
Popular Finnair Flight Routes from LHR
Top Flights for Finnair originating from LHR
Domestic
- Miami to Madrid (MIA - MAD)
- New York to Milan (JFK - MXP)
- Los Angeles to Rome (LAX - FCO)
- New York to Paris (JFK - CDG)
- New York to Rome (JFK - FCO)
- New York to Tokyo (JFK - NRT)
- New York to Athens (JFK - ATH)
- San Francisco to London (SFO - LHR)
- Chicago to Delhi (ORD - DEL)
- New York to London (JFK - LHR)
International
- Boston to London (BOS - LHR)
- Chicago to Delhi (ORD - DEL)
- New York to Paris (JFK - CDG)
- Los Angeles to Rome (LAX - FCO)
- New York to Dublin (JFK - DUB)
- New York to Dublin (JFK - DUB)
- Chicago to Delhi (ORD - DEL)
- Los Angeles to London (LAX - LHR)
- Chicago to London (ORD - LHR)
- New York to Lisbon (JFK - LIS)