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

Flights via Istanbul (IST) offer the lowest average round-trip price of $897.

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

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 12h 50m.

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

Seattle (SEA) has the shortest average layover time for this route: 1h 27m.

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

Istanbul (IST) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Helsinki?

Scandinavian Airlines, Finnair and Lufthansa 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 41% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 8 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

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 November 2026, there are 8 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.

$349 Cheap Flights from San Francisco to Helsinki in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Helsinki

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:45 pm - 8:20 pmSFO San Francisco-HEL Helsinki-Vantaa

17h 35m1 stop Kastrup Copenhagen

6:15 am - 2:50 pmHEL Helsinki-Vantaa-SFO San Francisco

18h 35m1 stop Kastrup Copenhagen

$659Scandinavian Airlines

Thu, Nov 26 - Wed, Dec 9

4:45 pm - 8:20 pmSFO San Francisco-HEL Helsinki-Vantaa

17h 35m1 stop Kastrup Copenhagen

7:00 am - 2:50 pmHEL Helsinki-Vantaa-SFO San Francisco

17h 50m2 stops Stockholm Arlanda Kastrup Copenhagen

$666Scandinavian Airlines

Thu, Nov 26 - Wed, Dec 9

3:05 pm - 4:40 pmSFO San Francisco-HEL Helsinki-Vantaa

15h 35m1 stop Paris Charles de Gaulle

7:00 am - 11:45 amHEL Helsinki-Vantaa-SFO San Francisco

14h 45m1 stop Amsterdam Schiphol

$852Delta

Mon, Mar 29 - Fri, Apr 2

3:05 pm - 4:40 pmSFO San Francisco-HEL Helsinki-Vantaa

15h 35m1 stop Paris Charles de Gaulle

1:55 pm - 11:45 amHEL Helsinki-Vantaa-SFO San Francisco

31h 50m1 stop Amsterdam Schiphol

$852Delta

Sun, Mar 28 - Tue, Apr 6

8:05 pm - 1:35 amSFO San Francisco-HEL Helsinki-Vantaa

19h 30m1 stop Munich Franz Josef Strauss

6:55 am - 12:40 pmHEL Helsinki-Vantaa-SFO San Francisco

15h 45m1 stop Frankfurt am Main

$858Lufthansa

Sun, Mar 28 - Fri, Apr 2

8:05 pm - 1:35 amSFO San Francisco-HEL Helsinki-Vantaa

19h 30m1 stop Munich Franz Josef Strauss

6:55 am - 12:40 pmHEL Helsinki-Vantaa-SFO San Francisco

15h 45m1 stop Frankfurt am Main

$858Lufthansa

Mon, Mar 29 - Fri, Apr 2

6:35 pm - 6:10 pmSFO San Francisco-HEL Helsinki-Vantaa

37h 35m1 stop Istanbul

11:55 am - 4:30 pmHEL Helsinki-Vantaa-SFO San Francisco

38h 35m1 stop Istanbul

$862Turkish Airlines

Tue, Jan 19 - Wed, Feb 10

8:25 am - 10:25 pmSFO San Francisco-HEL Helsinki-Vantaa

28h 00m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Stockholm Arlanda

7:50 pm - 12:35 pmHEL Helsinki-Vantaa-SFO San Francisco

26h 45m2 stops Stockholm Arlanda Frankfurt am Main

$874Multiple Airlines

Mon, Nov 16 - Wed, Nov 25

6:30 am - 6:45 pmSFO San Francisco-HEL Helsinki-Vantaa

27h 15m2 stops Vancouver Intl Munich Franz Josef Strauss

6:55 am - 12:40 pmHEL Helsinki-Vantaa-SFO San Francisco

15h 45m1 stop Frankfurt am Main

$876Multiple Airlines

Thu, Mar 18 - Wed, Mar 31

7:35 pm - 6:10 pmSFO San Francisco-HEL Helsinki-Vantaa

37h 35m1 stop Istanbul

7:40 pm - 4:55 pmHEL Helsinki-Vantaa-SFO San Francisco

31h 15m1 stop Istanbul

$882Turkish Airlines

Thu, Mar 18 - Wed, Mar 31

Cheap last minute flights

Enter your travel dates to find the best prices.

4:45 pm - 1:35 amSFO San Francisco-HEL Helsinki-Vantaa

22h 50m1 stop Kastrup Copenhagen

6:15 am - 2:50 pmHEL Helsinki-Vantaa-SFO San Francisco

18h 35m1 stop Kastrup Copenhagen

$755Scandinavian Airlines

Wed, Nov 4 - Sun, Nov 22

4:45 pm - 8:20 pmSFO San Francisco-HEL Helsinki-Vantaa

17h 35m1 stop Kastrup Copenhagen

11:10 am - 2:50 pmHEL Helsinki-Vantaa-SFO San Francisco

13h 40m1 stop Kastrup Copenhagen

$755Scandinavian Airlines

Wed, Nov 4 - Sun, Nov 22

7:30 am - 1:00 pmSFO San Francisco-HEL Helsinki-Vantaa

19h 30m2 stops Boston Logan Intl Reykjavik Keflavik Intl

2:00 pm - 12:25 amHEL Helsinki-Vantaa-SFO San Francisco

20h 25m2 stops Reykjavik Keflavik Intl Boston Logan Intl

$979Icelandair

Mon, Nov 9 - Fri, Nov 13

8:05 am - 1:00 pmSFO San Francisco-HEL Helsinki-Vantaa

18h 55m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl

2:00 pm - 12:44 amHEL Helsinki-Vantaa-SFO San Francisco

20h 44m2 stops Reykjavik Keflavik Intl Boston Logan Intl

$1,033Multiple Airlines

Mon, Nov 9 - Wed, Nov 25

12:05 pm - 4:40 pmSFO San Francisco-HEL Helsinki-Vantaa

18h 35m2 stops Los Angeles Paris Charles de Gaulle

6:40 am - 6:11 pmHEL Helsinki-Vantaa-SFO San Francisco

21h 31m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$1,145Air France

Wed, Nov 4 - Tue, Nov 17

10:55 pm - 4:40 pmSFO San Francisco-HEL Helsinki-Vantaa

31h 45m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

6:40 am - 6:11 pmHEL Helsinki-Vantaa-SFO San Francisco

21h 31m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$1,145Delta

Sat, Nov 7 - Tue, Nov 24

7:00 am - 4:40 pmSFO San Francisco-HEL Helsinki-Vantaa

23h 40m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

6:40 am - 11:59 pmHEL Helsinki-Vantaa-SFO San Francisco

27h 19m2 stops Amsterdam Schiphol Salt Lake City

$1,145Delta

Wed, Nov 4 - Fri, Nov 13

9:25 pm - 6:45 pmSFO San Francisco-HEL Helsinki-Vantaa

35h 20m2 stops Los Angeles Munich Franz Josef Strauss

7:05 am - 8:35 pmHEL Helsinki-Vantaa-SFO San Francisco

23h 30m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$1,157Lufthansa

Sat, Nov 7 - Tue, Nov 17

8:55 am - 11:40 amSFO San Francisco-HEL Helsinki-Vantaa

16h 45m1 stop Dallas/Fort Worth

4:50 pm - 12:43 amHEL Helsinki-Vantaa-SFO San Francisco

17h 53m1 stop New York John F Kennedy Intl

$1,197Finnair

Thu, Nov 5 - Tue, Nov 17

8:55 am - 2:45 pmSFO San Francisco-HEL Helsinki-Vantaa

19h 50m2 stops Dallas/Fort Worth Dublin

5:00 pm - 7:23 pmHEL Helsinki-Vantaa-SFO San Francisco

36h 23m2 stops Frankfurt am Main Dallas/Fort Worth

$2,247Finnair

Sat, Nov 7 - Fri, Nov 13

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Scandinavian Airlines flights from San Francisco to Helsinki

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

Scandinavian Airlines

Nov 26

SFO4:45 pmSan Francisco

17h 35m

1 stop

HEL8:20 pmHelsinki-Vantaa

Dec 9

HEL6:15 amHelsinki-Vantaa

18h 35m

1 stop

SFO2:50 pmSan Francisco

$659

Scandinavian Airlines

Nov 26

SFO4:45 pmSan Francisco

17h 35m

1 stop

HEL8:20 pmHelsinki-Vantaa

Dec 9

HEL7:00 amHelsinki-Vantaa

17h 50m

2 stops

SFO2:50 pmSan Francisco

$666

Scandinavian Airlines

Jan 29

SFO4:45 pmSan Francisco

31h 45m

1 stop

HEL10:30 amHelsinki-Vantaa

Feb 7

HEL6:15 amHelsinki-Vantaa

18h 35m

1 stop

SFO2:50 pmSan Francisco

$681

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Thu 11/26

4:45 pm-8:20 pm

1 stop17h 35m

Helsinki-Vantaa

Wed 12/9

6:15 am-2:50 pm

1 stop18h 35m

$659

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Thu 11/26

4:45 pm-8:20 pm

1 stop17h 35m

Helsinki-Vantaa

Wed 12/9

7:00 am-2:50 pm

2 stops17h 50m

$666

Quickest round-trip

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Mon 3/29

3:05 pm-4:40 pm

1 stop15h 35m

Helsinki-Vantaa

Fri 4/2

7:00 am-11:45 am

1 stop14h 45m

$852

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Sun 3/28

3:05 pm-4:40 pm

1 stop15h 35m

Helsinki-Vantaa

Tue 4/6

1:55 pm-11:45 am

1 stop31h 50m

$852

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Sun 3/28

8:05 pm-1:35 am

1 stop19h 30m

Helsinki-Vantaa

Fri 4/2

6:55 am-12:40 pm

1 stop15h 45m

$858

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Mon 3/29

8:05 pm-1:35 am

1 stop19h 30m

Helsinki-Vantaa

Fri 4/2

6:55 am-12:40 pm

1 stop15h 45m

$858

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Tue 1/19

6:35 pm-6:10 pm

1 stop37h 35m

Helsinki-Vantaa

Wed 2/10

11:55 am-4:30 pm

1 stop38h 35m

$862

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Mon 11/16

8:25 am-10:25 pm

3 stops28h 00m

Helsinki-Vantaa

Wed 11/25

7:50 pm-12:35 pm

2 stops26h 45m

$874

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Thu 3/18

6:30 am-6:45 pm

2 stops27h 15m

Helsinki-Vantaa

Wed 3/31

6:55 am-12:40 pm

1 stop15h 45m

$876

San FranciscoHelsinki

SFO San Francisco - HEL Helsinki-Vantaa

SFOHEL

San Francisco

Thu 3/18

7:35 pm-6:10 pm

1 stop37h 35m

Helsinki-Vantaa

Wed 3/31

7:40 pm-4:55 pm

1 stop31h 15m

$882

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 typical price of a round-trip flight between San Francisco and Helsinki?

Prices are currently low for flights on this route.

Typical prices usually range from $696 to $1,341.
The lowest price recently found on this route was $659.

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 $548. If you aren’t able to travel during the month of February, then book flights to Helsinki from San Francisco during April instead. Flights to Helsinki in April, while not as cheap as those in February, still average around $663.

How far in advance should I book a flight from San Francisco 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 $949 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 $858 on momondo.

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

As of November 2026, prices for San Francisco to Helsinki flights are approximately 16% more expensive 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

Best Price Found	$349
Fastest flight time	12h 35m
Direct flights	None

The best one-way flight to Helsinki from San Francisco in the past 72 hours is $349. The best round-trip flight deal from San Francisco to Helsinki found on momondo in the last 72 hours is $659.

The fastest flight from San Francisco to Helsinki takes 12h 35m

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

Search flight deals

Frequently asked questions about flying from San Francisco to Helsinki

How far is San Francisco to Helsinki-Vantaa by plane?
San Francisco and Helsinki-Vantaa are 5415.9 mi apart from one another. In terms of flight time, this usually takes a little over 12h 35m.
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 November 2026, there are 8 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 33% of the total bookings. Other popular airlines include Finnair with 21%, Lufthansa with 16%, and American Airlines with 10%.

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
Scandinavian Airlines	PriceFrom $496	Free Cancellation	Rating 7.4 2,030 reviews	Search Scandinavian Airlines flights
Finnair	PriceFrom $572	Free Cancellation	Rating 7.6 1,416 reviews	Search Finnair flights
Lufthansa	PriceFrom $587	Free Cancellation	Rating 6.8 8,299 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $622	Free Cancellation	Rating 7.4 4,463 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $650	Free Cancellation	Rating 7.3 10,463 reviews	Search United Airlines flights
American Airlines	PriceFrom $686	Free Cancellation	Rating 7.0 12,222 reviews	Search American Airlines flights
Air France	PriceFrom $971	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
Delta	PriceFrom $972	Free Cancellation	Rating 7.8 8,697 reviews	Search Delta 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.