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Flights from Portland to Helsinki

Find flight deals from Portland to Helsinki for the next 3 months. Book one way flights from €361 or round trip flights from €498.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Portland to Helsinki

The distance between Portland and Helsinki is about 6,169 km. The most popular month to Helsinki is October. The off-season for travel is November.

Cheapest one-way flight price€361
Cheapest round-trip ticket price€498
Off-season for travelNovember
Peak season for travelOctober
Flight distance6,169 km

When is the cheapest time to fly from Portland to Helsinki?

The cheapest time for Portland to Helsinki flights: Dec 4 to Dec 10 — one way flight prices from €361.

Cheapest flights
From price
Search
  • 2329

  • Nov

    305
  • 612
  • 1319
  • 2026

  • Dec

    273
  • 410
  • 1117
  • 1824
  • 2531

  • Jan

    17
  • 814
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When is the best time to book flights from Portland to Helsinki?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Helsinki is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • The cheapest months to fly from Portland to Helsinki is November, when demand for travel is lower.
  • The time difference between Helsinki and Portland is 7h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

How to find a cheap flight from Portland to Helsinki

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Portland to Helsinki. Book your flights at the right time and save more.
1
Be flexible with your travel dates to get the cheapest Portland to Helsinki ticket.
Tap "Date" on flight search bar to get the calender for Portland to Helsinki airfare over next 6 months in 2025.
2
Compare cheap Portland to Helsinki flight deals from hundreds of airlines.
Compare prices from over 500 airlines with our powerful search and find the cheapest flight tickets from Portland to Helsinki.
3
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Portland to Helsinki route to track ticket prices effortlessly—no need to check manually every day.
4
Don't miss out on cheap Portland to Helsinki flight deals and promo codes.
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5
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
6
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from Portland to Helsinki to access exclusive deals just for you.

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