$419 Cheap Flights from Knoxville (TYS) to Helsinki (HEL)

View $419 flight on Tue, Oct 7, 2025Opens in a new window

Popular airlines from McGhee Tyson Airport (TYS) to Helsinki-Vantaa Airport (HEL)

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Cheap Flights from Knoxville to Helsinki (TYS-HEL)

Prices were available within the past 7 days and start at $419 for one-way flights and $509 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Sep 28 - Thu, Oct 16
TYS
Knoxville
HEL
Helsinki
$509 Roundtrip, found 5 days ago
$509
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Sep 28 from Knoxville to Helsinki, returning Thu, Oct 16, priced at $509 found 5 days ago
British Airways
Tue, Oct 14 - Tue, Nov 4
TYS
Knoxville
HEL
Helsinki
$514 Roundtrip, found 4 days ago
$514
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Oct 14 from Knoxville to Helsinki, returning Tue, Nov 4, priced at $514 found 4 days ago
Lufthansa
Wed, Nov 19 - Wed, Dec 3
TYS
Knoxville
HEL
Helsinki
$516 Roundtrip, found 5 days ago
$516
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Nov 19 from Knoxville to Helsinki, returning Wed, Dec 3, priced at $516 found 5 days ago
American Airlines
Sun, Sep 21 - Tue, Oct 7
TYS
Knoxville
HEL
Helsinki
$539 Roundtrip, found 5 days ago
$539
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Sep 21 from Knoxville to Helsinki, returning Tue, Oct 7, priced at $539 found 5 days ago
Delta
Sun, Oct 5 - Thu, Oct 16
TYS
Knoxville
HEL
Helsinki
$544 Roundtrip, found 6 days ago
$544
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Oct 5 from Knoxville to Helsinki, returning Thu, Oct 16, priced at $544 found 6 days ago
United
Wed, Oct 8 - Tue, Oct 14
TYS
Knoxville
HEL
Helsinki
$546 Roundtrip, found 6 days ago
$546
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 8 from Knoxville to Helsinki, returning Tue, Oct 14, priced at $546 found 6 days ago
American Airlines
Mon, Sep 15 - Wed, Sep 24
TYS
Knoxville
HEL
Helsinki
$546 Roundtrip, found 11 hours ago
$546
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Mon, Sep 15 from Knoxville to Helsinki, returning Wed, Sep 24, priced at $546 found 11 hours ago
United
Tue, Sep 9 - Tue, Sep 23
TYS
Knoxville
HEL
Helsinki
$549 Roundtrip, found 5 days ago
$549
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 9 from Knoxville to Helsinki, returning Tue, Sep 23, priced at $549 found 5 days ago
United
Wed, Aug 27 - Fri, Sep 5
TYS
Knoxville
HEL
Helsinki
$551 Roundtrip, found 2 days ago
$551
Roundtrip
found 2 days ago
Select United flight, departing Wed, Aug 27 from Knoxville to Helsinki, returning Fri, Sep 5, priced at $551 found 2 days ago
United
Mon, Aug 18 - Wed, Sep 3
TYS
Knoxville
HEL
Helsinki
$557 Roundtrip, found 5 days ago
$557
Roundtrip
found 5 days ago
Select United flight, departing Mon, Aug 18 from Knoxville to Helsinki, returning Wed, Sep 3, priced at $557 found 5 days ago
Flights from Knoxville (TYS) to Helsinki (HEL)
Origin airport
McGhee Tyson
Destination airport
Vantaa
Airlines serving
American Airlines, British Airways, Finnair, KLM, Lufthansa, United
Roundtrip price
$509
Distance
4684 mi

Knoxville to Helsinki Flights

The cheapest times to fly from Knoxville to Helsinki

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Knoxville to Helsinki are during the month of September. You can find some of the cheapest flights from Knoxville to Helsinki with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Knoxville to Helsinki

Sunday is one of the best days to book for cheap flights from Knoxville to Helsinki: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Knoxville to Helsinki

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Knoxville to Helsinki in 2025. You can also book with separate airlines for your outbound and return journeys, from $419 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Knoxville to Helsinki flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Knoxville to Helsinki airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL) cost?
Discover the latest flight deals from TYS to HEL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TYS to HEL?
The cheapest flights from TYS to HEL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TYS to HEL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TYS to HEL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL)?
Nonstop flights from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TYS to HEL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL)?
Book a flight from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL) last-minute?
Last-minute fares from TYS to HEL are usually more expensive. For the cheapest rates, start looking for flights ahead of time. That being said, if you can play around with your travel dates, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book a TYS to HEL flight and hotel package?
Compared with arranging flights and hotels separately, booking a TYS to HEL flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the stress out of travel planning. Just pick your flights and choose from our extensive range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from McGhee Tyson Airport (TYS) to Vantaa Airport (HEL)?
It's usually possible to reschedule or cancel your TYS to HEL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.