Which airport is the most popular layover for flights between San Francisco and Helsinki?

Istanbul (IST) was the most common stop: 29% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from San Francisco to Helsinki?

Paris (CDG) has the shortest average layover time for this route: 1h 33m.

What airlines fly to Helsinki?

Scandinavian Airlines, Finnair and American Airlines are the top three most popular airlines that fly to Helsinki from San Francisco according to our data. Scandinavian Airlines is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 9 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Francisco to Helsinki-Vantaa?

Lufthansa and United Airlines are the most popular carriers operating from San Francisco to Helsinki-Vantaa

Which layover airport offers the lowest fares from San Francisco to Helsinki?

Flights via Istanbul (IST) offer the lowest average round-trip price of $753.

Which layover airport has the shortest travel time from San Francisco to Helsinki?

Flights connecting via Copenhagen (CPH) have the shortest average one-way travel time: 12h 39m.

When did momondo last update prices for flights from San Francisco Airport to Helsinki-Vantaa Airport?

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

How many operators does momondo search for flights from San Francisco Airport to Helsinki-Vantaa Airport?

As of March 2026, there are 9 operators available to choose from for flights from San Francisco Airport to Helsinki-Vantaa Airport.

How old do you have to be to fly from San Francisco Airport to Helsinki-Vantaa Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco 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.

$324 Cheap Flights from San Francisco to Helsinki in 2026

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Find the cheapest flights from San Francisco to Helsinki

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 pm - 11:10 am

SFO

HEL

30h 25m

1 stop

7:35 pm - 4:40 pm

HEL

SFO

31h 05m

1 stop

$622Turkish Airlines

Tue, Apr 21 - Tue, Apr 28

6:45 pm - 11:55 pm

SFO

HEL

19h 10m

1 stop

7:35 pm - 4:40 pm

HEL

SFO

31h 05m

1 stop

$633Turkish Airlines

Tue, Aug 25 - Thu, Sep 3

12:55 pm - 11:55 pm

SFO

HEL

25h 00m

1 stop

7:35 pm - 4:40 pm

HEL

SFO

31h 05m

1 stop

$643Turkish Airlines

Tue, May 12 - Tue, May 19

6:45 pm - 11:10 am

SFO

HEL

30h 25m

1 stop

12:05 pm - 10:50 am

HEL

SFO

32h 45m

1 stop

$655Turkish Airlines

Mon, May 4 - Mon, May 11

6:45 pm - 11:55 pm

SFO

HEL

19h 10m

1 stop

7:35 pm - 10:50 am

HEL

SFO

25h 15m

1 stop

$674Turkish Airlines

Sun, Apr 19 - Sun, Apr 26

6:45 pm - 6:40 pm

SFO

HEL

37h 55m

1 stop

8:20 am - 4:40 pm

HEL

SFO

18h 20m

1 stop

$688Turkish Airlines

Fri, Apr 17 - Mon, Apr 27

6:45 pm - 11:55 pm

SFO

HEL

19h 10m

1 stop

8:20 am - 4:40 pm

HEL

SFO

18h 20m

1 stop

$708Turkish Airlines

Sat, Apr 18 - Sat, Apr 25

12:55 pm - 11:10 am

SFO

HEL

36h 15m

1 stop

12:05 pm - 4:40 pm

HEL

SFO

38h 35m

1 stop

$722Turkish Airlines

Thu, Aug 6 - Tue, Aug 25

2:57 pm - 2:00 pm

SFO

HEL

37h 03m

2 stops

3:00 pm - 11:34 am

HEL

SFO

30h 34m

2 stops

$773Icelandair

Tue, Apr 21 - Tue, Apr 28

11:25 am - 2:00 pm

SFO

HEL

16h 35m

2 stops

3:00 pm - 11:39 pm

HEL

SFO

18h 39m

2 stops

$835Icelandair

Wed, Sep 9 - Wed, Sep 23

Turkish Airlines flights from San Francisco to Helsinki

Our best Turkish Airlines deals on San Francisco to Helsinki flight tickets

Turkish Airlines

Mar 30

SFO12:55 pmSan Francisco

36h 15m

1 stop

HEL11:10 amHelsinki-Vantaa

Apr 14

HEL7:35 pmHelsinki-Vantaa

31h 05m

1 stop

SFO4:40 pmSan Francisco

$618

Turkish Airlines

Mar 31

SFO6:45 pmSan Francisco

37h 55m

1 stop

HEL6:40 pmHelsinki-Vantaa

Apr 14

HEL8:20 amHelsinki-Vantaa

18h 20m

1 stop

SFO4:40 pmSan Francisco

$621

Turkish Airlines

Apr 21

SFO6:45 pmSan Francisco

30h 25m

1 stop

HEL11:10 amHelsinki-Vantaa

Apr 28

HEL7:35 pmHelsinki-Vantaa

31h 05m

1 stop

SFO4:40 pmSan Francisco

$622

Icelandair flights from San Francisco to Helsinki

Our best Icelandair deals on San Francisco to Helsinki flight tickets

Icelandair

Apr 21

SFO2:57 pmSan Francisco

37h 03m

2 stops

HEL2:00 pmHelsinki-Vantaa

Apr 28

HEL3:00 pmHelsinki-Vantaa

30h 34m

2 stops

SFO11:34 amSan Francisco

$773

Icelandair

Mar 31

SFO11:13 amSan Francisco

16h 47m

2 stops

HEL2:00 pmHelsinki-Vantaa

Apr 14

HEL3:00 pmHelsinki-Vantaa

28h 23m

2 stops

SFO9:23 amSan Francisco

$774

Icelandair

Mar 31

SFO12:00 pmSan Francisco

16h 00m

2 stops

HEL2:00 pmHelsinki-Vantaa

Apr 14

HEL3:00 pmHelsinki-Vantaa

28h 23m

2 stops

SFO9:23 amSan Francisco

$819

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 4/21

6:45 pm-11:10 am

1 stop30h 25m

Helsinki-Vantaa

Tue 4/28

7:35 pm-4:40 pm

1 stop31h 05m

$622

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 8/25

6:45 pm-11:55 pm

1 stop19h 10m

Helsinki-Vantaa

Thu 9/3

7:35 pm-4:40 pm

1 stop31h 05m

$633

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 5/12

12:55 pm-11:55 pm

1 stop25h 00m

Helsinki-Vantaa

Tue 5/19

7:35 pm-4:40 pm

1 stop31h 05m

$643

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 5/4

6:45 pm-11:10 am

1 stop30h 25m

Helsinki-Vantaa

Mon 5/11

12:05 pm-10:50 am

1 stop32h 45m

$655

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Sun 4/19

6:45 pm-11:55 pm

1 stop19h 10m

Helsinki-Vantaa

Sun 4/26

7:35 pm-10:50 am

1 stop25h 15m

$674

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Fri 4/17

6:45 pm-6:40 pm

1 stop37h 55m

Helsinki-Vantaa

Mon 4/27

8:20 am-4:40 pm

1 stop18h 20m

$688

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Sat 4/18

6:45 pm-11:55 pm

1 stop19h 10m

Helsinki-Vantaa

Sat 4/25

8:20 am-4:40 pm

1 stop18h 20m

$708

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Thu 8/6

12:55 pm-11:10 am

1 stop36h 15m

Helsinki-Vantaa

Tue 8/25

12:05 pm-4:40 pm

1 stop38h 35m

$722

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 4/21

2:57 pm-2:00 pm

2 stops37h 03m

Helsinki-Vantaa

Tue 4/28

3:00 pm-11:34 am

2 stops30h 34m

$773

Quickest round-trip

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Wed 9/9

11:25 am-2:00 pm

2 stops16h 35m

Helsinki-Vantaa

Wed 9/23

3:00 pm-11:39 pm

2 stops18h 39m

$835

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Francisco 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

Prices

Airlines

Layovers

What is the cheapest month to fly to Helsinki?

The month of February is, on average, the cheapest month to fly to Helsinki from San Francisco, with most prices found around $574. If you aren’t able to travel during the month of February, then book flights to Helsinki from San Francisco during January instead. Flights to Helsinki in January, while not as cheap as those in February, still average around $634.

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

You are more likely to see cheaper flights to Helsinki from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $838 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from San Francisco for as low as $745 on momondo.

Can stopping save me money on San Francisco to Helsinki flights?

You could potentially save up to 22% on your flight if you consider stops on a San Francisco to Helsinki flight.

How have San Francisco to Helsinki flight prices changed over time?

As of March 2026, prices for San Francisco to Helsinki flights are approximately 46% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Helsinki according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Francisco to Helsinki (SFO to HEL) flight deals and tips

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

Fastest flight time	14h 54m
Direct flights	None

The fastest flight from San Francisco to Helsinki takes 14h 54m

There are no direct flights from San Francisco to Helsinki. There are no popular flight routes from San Francisco to Helsinki.

Search flight deals

How far is San Francisco to Helsinki-Vantaa by plane?
San Francisco and Helsinki-Vantaa are 5415.4 mi apart from one another. In terms of flight time, this usually takes a little over 14h 54m.
When did momondo last update prices for flights from San Francisco Airport to Helsinki-Vantaa Airport?
Prices for flights from San Francisco Airport to Helsinki-Vantaa Airport refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Helsinki-Vantaa Airport?
As of March 2026, there are 9 operators available to choose from for flights from San Francisco Airport to Helsinki-Vantaa Airport.
How old do you have to be to fly from San Francisco Airport to Helsinki-Vantaa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco 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 San Francisco to Helsinki?
Based on momondo bookings for flights between San Francisco and Helsinki, the leading airline is Scandinavian Airlines, making up 20% of the total bookings. Other popular airlines include Finnair with 20%, American Airlines with 20%, and Lufthansa with 12%.

Best airlines flying from San Francisco to Helsinki

Compare and see reviews for airlines that fly from San Francisco to Helsinki with momondo

Airline	Rating	Free Cancellation	Price
Brussels Airlines	PriceFrom $483	Free Cancellation	Rating 7.2 393 reviews	Search Brussels Airlines flights
Scandinavian Airlines	PriceFrom $496	Free Cancellation	Rating 7.3 1,722 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $538	Free Cancellation	Rating 7.9 8,323 reviews	Search Delta flights
Finnair	PriceFrom $566	Free Cancellation	Rating 7.7 1,374 reviews	Search Finnair flights
Lufthansa	PriceFrom $566	Free Cancellation	Rating 6.8 7,864 reviews	Search Lufthansa flights
American Airlines	PriceFrom $568	Free Cancellation	Rating 7.1 11,492 reviews	Search American Airlines flights
United Airlines	PriceFrom $615	Free Cancellation	Rating 7.4 9,469 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $623	Free Cancellation	Rating 7.3 4,276 reviews	Search Turkish Airlines flights
British Airways	PriceFrom $685	Free Cancellation	Rating 6.7 7,813 reviews	Search British Airways flights

Vantaa

Espoo

Lahti

Kotka

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Helsinki. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from San Francisco to Helsinki with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco 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 San Francisco to Helsinki.

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

Yes. momondo can track prices for San Francisco to Helsinki flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.