$646 Cheap Flights from Pasco (PSC) to Helsinki (HEL)

View $646 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Tri-Cities Airport (PSC) to Helsinki-Vantaa Airport (HEL)

Cheap Flights from Pasco to Helsinki (PSC-HEL)

Prices were available within the past 7 days and start at $646 for one-way flights and $773 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sun, Oct 12 - Thu, Oct 16
PSC
Pasco
HEL
Helsinki
$773 Roundtrip, found 1 day ago
$773
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, Oct 12 from Pasco to Helsinki, returning Thu, Oct 16, priced at $773 found 1 day ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$868 Roundtrip, found 2 days ago
$868
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $868 found 2 days ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$874 Roundtrip, found 2 days ago
$874
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $874 found 2 days ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$894 Roundtrip, found 2 days ago
$894
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $894 found 2 days ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$899 Roundtrip, found 2 days ago
$899
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $899 found 2 days ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$901 Roundtrip, found 2 days ago
$901
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $901 found 2 days ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$902 Roundtrip, found 2 days ago
$902
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $902 found 2 days ago
Alaska Airlines
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$907 Roundtrip, found 2 days ago
$907
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $907 found 2 days ago
Scandinavian Airlines
Sun, Oct 12 - Thu, Oct 16
PSC
Pasco
HEL
Helsinki
$999 Roundtrip, found 1 day ago
$999
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, Oct 12 from Pasco to Helsinki, returning Thu, Oct 16, priced at $999 found 1 day ago
British Airways
Wed, Jan 14 - Tue, Jan 20
PSC
Pasco
HEL
Helsinki
$1,139 Roundtrip, found 2 days ago
$1,139
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Jan 14 from Pasco to Helsinki, returning Tue, Jan 20, priced at $1,139 found 2 days ago
Flights from Pasco (PSC) to Helsinki (HEL)
Origin airport
Tri-Cities
Destination airport
Vantaa
Roundtrip price
$773
Distance
4800 mi

Pasco to Helsinki Flights

The cheapest times to fly from Pasco 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 Pasco to Helsinki are during the month of October. You can find some of the cheapest flights from Pasco to Helsinki with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pasco to Helsinki

Sunday is one of the best days to book for cheap flights from Pasco 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 Pasco 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 Pasco to Helsinki in 2025. You can also book with separate airlines for your outbound and return journeys, from $646 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 Pasco 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 Pasco 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 Tri-Cities Airport (PSC) to Vantaa Airport (HEL) cost?
Grab a cheap one-way flight from $646 or cheap return flight from $773 from Tri-Cities Airport (PSC) to Vantaa Airport (HEL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Tri-Cities Airport (PSC) to Vantaa Airport (HEL)?
Planning your trip for October is a great way to save, as it's the cheapest month for flights between PSC and HEL. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Tri-Cities Airport (PSC) to Vantaa Airport (HEL)?
To find the cheapest airline that'll fly you from PSC to HEL, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Tri-Cities Airport (PSC) to Vantaa Airport (HEL)?
There are no daily nonstop flights available from Tri-Cities Airport (PSC) to Vantaa Airport (HEL). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from PSC to HEL?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Airport (PSC) to Vantaa Airport (HEL)?
Opt for a flight from Tri-Cities Airport (PSC) to Vantaa Airport (HEL) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time 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 Tri-Cities Airport (PSC) to Vantaa Airport (HEL) last-minute?
Booking your plane ticket from PSC to HEL just before your getaway is generally more expensive. But if you're flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a PSC to HEL flight and hotel package?
Compared with arranging hotels and flights separately, booking a PSC to HEL flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of planning your trip. Simply secure your flights and select from our extensive range of hotels, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Tri-Cities Airport (PSC) to Vantaa Airport (HEL)?
In most cases, you can reschedule or cancel your PSC to HEL flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.