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Cheap flights from Portland to Helsinki from $331

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Helsinki departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Helsinki

Cheap round-trip flights

Icelandair Logo
3:45 pm - 12:55 pmPDX-HEL
12h 10m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-PDX
13h 05m1 stop
$363Icelandair
Find Deal
Thu, Oct 30 - Wed, Nov 12
Icelandair Logo
3:20 pm - 2:00 pmPDX-HEL
12h 40m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-PDX
13h 05m1 stop
$364Icelandair
Find Deal
Mon, Oct 20 - Sun, Nov 2
Icelandair Logo
3:45 pm - 12:55 pmPDX-HEL
12h 10m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-PDX
13h 05m1 stop
$367Icelandair
Find Deal
Thu, Oct 30 - Wed, Nov 5
Icelandair Logo
3:20 pm - 2:00 pmPDX-HEL
12h 40m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-PDX
13h 05m1 stop
$392Icelandair
Find Deal
Wed, Oct 22 - Sun, Nov 2
Delta Logo
11:10 am - 1:00 pmPDX-HEL
15h 50m2 stops
Delta Logo
7:10 am - 9:04 pmHEL-PDX
23h 54m2 stops
$471Delta
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Tue, Oct 14 - Tue, Oct 21
Delta Logo
11:10 am - 4:25 pmPDX-HEL
20h 15m2 stops
Delta Logo
7:00 am - 11:25 amHEL-PDX
14h 25m1 stop
$473Delta
Find Deal
Wed, Oct 29 - Wed, Nov 5
American Airlines Logo
2:45 pm - 3:20 pmPDX-HEL
15h 35m1 stop
American Airlines Logo
12:30 pm - 12:13 pmHEL-PDX
33h 43m1 stop
$474American Airlines
Find Deal
Thu, Oct 30 - Wed, Nov 12
Finnair Logo
2:45 pm - 3:20 pmPDX-HEL
15h 35m1 stop
Finnair Logo
12:30 pm - 7:14 pmHEL-PDX
16h 44m1 stop
$482Finnair
Find Deal
Thu, Oct 30 - Wed, Nov 5
KLM Logo
11:10 am - 1:00 pmPDX-HEL
15h 50m2 stops
KLM Logo
1:55 pm - 11:20 amHEL-PDX
31h 25m1 stop
$485KLM
Find Deal
Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
5:53 am - 10:45 amPDX-HEL
18h 52m1 stop
American Airlines Logo
12:30 pm - 9:11 pmHEL-PDX
18h 41m1 stop
$536American Airlines
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Fri, Jan 30 - Mon, Feb 9

Delta flights from Portland to Helsinki

Our best Delta deals on Portland to Helsinki flight tickets
Delta
Oct 14
PDX11:10 amPortland
15h 50m
2 stops
HEL1:00 pmHelsinki-Vantaa
Oct 21
HEL7:10 amHelsinki-Vantaa
23h 54m
2 stops
PDX9:04 pmPortland
$471
Find similar
Delta
Oct 29
PDX11:10 amPortland
20h 15m
2 stops
HEL4:25 pmHelsinki-Vantaa
Nov 5
HEL7:00 amHelsinki-Vantaa
14h 25m
1 stop
PDX11:25 amPortland
$473
Find similar
Delta
Oct 22
PDX1:15 pmPortland
18h 25m
1 stop
HEL5:40 pmHelsinki-Vantaa
Oct 30
HEL2:05 pmHelsinki-Vantaa
31h 20m
1 stop
PDX12:25 pmPortland
$481
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United Airlines flights from Portland to Helsinki

Our best United Airlines deals on Portland to Helsinki flight tickets
United Airlines
Oct 29
PDX5:00 amPortland
28h 50m
2 stops
HEL6:50 pmHelsinki-Vantaa
Nov 5
HEL12:45 pmHelsinki-Vantaa
21h 41m
2 stops
PDX12:26 amPortland
$478
Find similar
United Airlines
Jan 24
PDX1:24 pmPortland
37h 46m
3 stops
HEL1:10 pmHelsinki-Vantaa
Feb 5
HEL12:45 pmHelsinki-Vantaa
20h 21m
2 stops
PDX11:06 pmPortland
$515
Find similar
United Airlines
Mar 4
PDX7:11 amPortland
25h 39m
2 stops
HEL6:50 pmHelsinki-Vantaa
Mar 8
HEL6:55 amHelsinki-Vantaa
26h 24m
2 stops
PDX11:19 pmPortland
$520
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momondo Fare Finder

 
Customize your flight search to find flights from Portland to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Portland to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Thu 10/30

3:45 pm-12:55 pm

1 stop12h 10m

Helsinki-Vantaa

Wed 11/12

1:55 pm-5:00 pm

1 stop13h 05m

$363

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Mon 10/20

3:20 pm-2:00 pm

1 stop12h 40m

Helsinki-Vantaa

Sun 11/2

1:55 pm-5:00 pm

1 stop13h 05m

$364

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Thu 10/30

3:45 pm-12:55 pm

1 stop12h 10m

Helsinki-Vantaa

Wed 11/5

1:55 pm-5:00 pm

1 stop13h 05m

$367

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Wed 10/22

3:20 pm-2:00 pm

1 stop12h 40m

Helsinki-Vantaa

Sun 11/2

1:55 pm-5:00 pm

1 stop13h 05m

$392

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Tue 10/14

11:10 am-1:00 pm

2 stops15h 50m

Helsinki-Vantaa

Tue 10/21

7:10 am-9:04 pm

2 stops23h 54m

$471

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Wed 10/29

11:10 am-4:25 pm

2 stops20h 15m

Helsinki-Vantaa

Wed 11/5

7:00 am-11:25 am

1 stop14h 25m

$473

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Thu 10/30

2:45 pm-3:20 pm

1 stop15h 35m

Helsinki-Vantaa

Wed 11/12

12:30 pm-12:13 pm

1 stop33h 43m

$474

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Thu 10/30

2:45 pm-3:20 pm

1 stop15h 35m

Helsinki-Vantaa

Wed 11/5

12:30 pm-7:14 pm

1 stop16h 44m

$482

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Tue 10/14

11:10 am-1:00 pm

2 stops15h 50m

Helsinki-Vantaa

Tue 10/21

1:55 pm-11:20 am

1 stop31h 25m

$485

PortlandHelsinki

PDX - HEL

PDXHEL

Portland

Fri 1/30

5:53 am-10:45 am

1 stop18h 52m

Helsinki-Vantaa

Mon 2/9

12:30 pm-9:11 pm

1 stop18h 41m

$536

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helsinki from

How to get the cheapest flight ticket from Portland to Helsinki

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Helsinki?

What is the cheapest month to fly to Helsinki?

The month of August is, on average, the cheapest month to fly to Helsinki from Portland, with most prices found around $555. If you aren’t able to travel during the month of August, then book flights to Helsinki from Portland during October instead. Flights to Helsinki in October, while not as cheap as those in August, still average around $579.

What is the cheapest day to depart on your flight to Helsinki?

The cheapest day to depart on your flight to Helsinki is on a Tuesday when prices can be found for as low as $662. This is often the case because there is less demand to fly during this day of the week. Flights from Portland to Helsinki on a Wednesday will generally be more expensive and average around $1,099. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Helsinki?

According to our data, the cheapest time of day to fly to Helsinki is at noon. momondo users have found flights departing from Portland to Helsinki at noon for as low as $889. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Helsinki, so prices are often more expensive at around $1,135 per ticket.

How far in advance should I book a flight to Helsinki?

You are more likely to see cheaper flights to Helsinki from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $956 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Portland for as low as $555 on momondo.

Can stopping save me money on Portland to Helsinki flights?

You could potentially save up to 26% on your flight if you consider stops on a Portland to Helsinki flight.

When to book flights from Portland to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Helsinki according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Helsinki (PDX to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Helsinki

Direct flights

None
There are no direct flights from Portland to Helsinki. There are no popular flight routes from Portland to Helsinki.
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  • How far is Portland to Helsinki-Vantaa by plane?

    There are 4906.2 mi between Portland and Helsinki-Vantaa. A reasonable flight in good conditions will take 12h 10m.

  • When did momondo last update prices for flights from Portland Airport to Helsinki-Vantaa Airport?

    Prices for flights from Portland Airport to Helsinki-Vantaa Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Portland Airport to Helsinki-Vantaa Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Portland to Helsinki?

Best airlines flying from Portland to Helsinki

Compare and see reviews for airlines that fly from Portland to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $425Free CancellationRating
7.0
544 reviews
Search Icelandair flights
American AirlinesPriceFrom $481Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FinnairPriceFrom $482Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
KLMPriceFrom $487Free CancellationRating
7.8
1,385 reviews
Search KLM flights
DeltaPriceFrom $529Free CancellationRating
7.9
7,954 reviews
Search Delta flights
United AirlinesPriceFrom $570Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
British AirwaysPriceFrom $662Free CancellationRating
6.6
7,361 reviews
Search British Airways flights

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Espoo
Kotka
Lahti

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Helsinki?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Helsinki from Portland.

Can I find flights from Portland to Helsinki with flexible booking policies on momondo?

momondo does allow users to show only those flights to Helsinki from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Helsinki?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Helsinki.

I’m not ready to book a flight from Portland to Helsinki right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Helsinki flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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