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Cheap flights from San Francisco to Helsinki from $275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Helsinki departing on 11/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Francisco to Helsinki

Cheap round-trip flights

Scandinavian Airlines Logo
4:40 pm - 3:25 pmSFO-HEL
12h 45m1 stop
Scandinavian Airlines Logo
6:15 am - 2:35 pmHEL-SFO
18h 20m1 stop
$538Scandinavian Airlines
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Fri, Nov 7 - Fri, Nov 14
Scandinavian Airlines Logo
4:40 pm - 11:55 pmSFO-HEL
21h 15m2 stops
Scandinavian Airlines Logo
6:15 am - 2:35 pmHEL-SFO
18h 20m1 stop
$540Scandinavian Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 22
Scandinavian Airlines Logo
4:40 pm - 3:25 pmSFO-HEL
12h 45m1 stop
Scandinavian Airlines Logo
6:15 am - 2:35 pmHEL-SFO
18h 20m1 stop
$541Scandinavian Airlines
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Thu, Dec 4 - Thu, Dec 11
Lufthansa Logo
9:05 pm - 11:50 pmSFO-HEL
16h 45m1 stop
Lufthansa Logo
6:10 am - 12:40 pmHEL-SFO
16h 30m1 stop
$582Lufthansa
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Sun, Aug 10 - Tue, Aug 26
Lufthansa Logo
9:05 pm - 11:50 pmSFO-HEL
16h 45m1 stop
Lufthansa Logo
5:50 pm - 12:40 pmHEL-SFO
28h 50m1 stop
$588Lufthansa
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Tue, Aug 19 - Mon, Aug 25
United Airlines Logo
2:40 pm - 4:40 pmSFO-HEL
16h 00m1 stop
United Airlines Logo
6:10 am - 4:00 pmHEL-SFO
19h 50m1 stop
$594United Airlines
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Mon, Sep 22 - Thu, Oct 9
Delta Logo
10:55 am - 4:40 pmSFO-HEL
19h 45m2 stops
Delta Logo
7:10 am - 6:52 pmHEL-SFO
21h 42m2 stops
$595Delta
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Tue, Sep 2 - Tue, Sep 30
United Airlines Logo
11:56 pm - 12:50 pmSFO-HEL
26h 54m2 stops
United Airlines Logo
6:10 am - 4:00 pmHEL-SFO
19h 50m1 stop
$599United Airlines
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Sun, Sep 28 - Tue, Oct 7
Turkish Airlines Logo
12:40 pm - 6:40 pmSFO-HEL
20h 00m1 stop
Turkish Airlines Logo
7:35 pm - 10:35 amHEL-SFO
25h 00m1 stop
$603Turkish Airlines
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Sun, Sep 14 - Tue, Sep 30
Delta Logo
10:55 am - 4:40 pmSFO-HEL
19h 45m2 stops
Delta Logo
6:40 am - 5:51 pmHEL-SFO
21h 11m2 stops
$619Delta
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Mon, Sep 22 - Tue, Oct 7

Air Canada flights from San Francisco to Helsinki

Our best Air Canada deals on San Francisco to Helsinki flight tickets
Air Canada
Sep 21
SFO1:45 pmSan Francisco
37h 05m
2 stops
HEL12:50 pmHelsinki-Vantaa
Oct 7
HEL6:10 amHelsinki-Vantaa
23h 41m
2 stops
SFO7:51 pmSan Francisco
$568
Find similar
Air Canada
Dec 29
SFO8:25 amSan Francisco
24h 15m
2 stops
HEL6:40 pmHelsinki-Vantaa
Jan 8
HEL12:45 pmHelsinki-Vantaa
54h 32m
2 stops
SFO9:17 amSan Francisco
$608
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Air Canada
Aug 9
SFO9:03 pmSan Francisco
33h 37m
2 stops
HEL4:40 pmHelsinki-Vantaa
Sep 22
HEL6:10 amHelsinki-Vantaa
25h 33m
2 stops
SFO9:43 pmSan Francisco
$654
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Lufthansa flights from San Francisco to Helsinki

Our best Lufthansa deals on San Francisco to Helsinki flight tickets
Lufthansa
Aug 10
SFO9:05 pmSan Francisco
16h 45m
1 stop
HEL11:50 pmHelsinki-Vantaa
Aug 26
HEL6:10 amHelsinki-Vantaa
16h 30m
1 stop
SFO12:40 pmSan Francisco
$582
Find similar
Lufthansa
Aug 19
SFO9:05 pmSan Francisco
16h 45m
1 stop
HEL11:50 pmHelsinki-Vantaa
Aug 25
HEL5:50 pmHelsinki-Vantaa
28h 50m
1 stop
SFO12:40 pmSan Francisco
$588
Find similar
Lufthansa
Aug 10
SFO9:05 pmSan Francisco
16h 45m
1 stop
HEL11:50 pmHelsinki-Vantaa
Sep 23
HEL6:10 amHelsinki-Vantaa
20h 57m
2 stops
SFO5:07 pmSan Francisco
$600
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momondo Fare Finder

 
Customize your flight search to find flights from San Francisco 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 July 29, 2025.
Use the filters below to find and compare flights from San Francisco to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Fri 11/7

4:40 pm-3:25 pm

1 stop12h 45m

Helsinki-Vantaa

Fri 11/14

6:15 am-2:35 pm

1 stop18h 20m

$538

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Sat 11/8

4:40 pm-11:55 pm

2 stops21h 15m

Helsinki-Vantaa

Sat 11/22

6:15 am-2:35 pm

1 stop18h 20m

$540

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Thu 12/4

4:40 pm-3:25 pm

1 stop12h 45m

Helsinki-Vantaa

Thu 12/11

6:15 am-2:35 pm

1 stop18h 20m

$541

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Sun 8/10

9:05 pm-11:50 pm

1 stop16h 45m

Helsinki-Vantaa

Tue 8/26

6:10 am-12:40 pm

1 stop16h 30m

$582

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 8/19

9:05 pm-11:50 pm

1 stop16h 45m

Helsinki-Vantaa

Mon 8/25

5:50 pm-12:40 pm

1 stop28h 50m

$588

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 9/22

2:40 pm-4:40 pm

1 stop16h 00m

Helsinki-Vantaa

Thu 10/9

6:10 am-4:00 pm

1 stop19h 50m

$594

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 9/2

10:55 am-4:40 pm

2 stops19h 45m

Helsinki-Vantaa

Tue 9/30

7:10 am-6:52 pm

2 stops21h 42m

$595

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Sun 9/28

11:56 pm-12:50 pm

2 stops26h 54m

Helsinki-Vantaa

Tue 10/7

6:10 am-4:00 pm

1 stop19h 50m

$599

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Sun 9/14

12:40 pm-6:40 pm

1 stop20h 00m

Helsinki-Vantaa

Tue 9/30

7:35 pm-10:35 am

1 stop25h 00m

$603

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 9/22

10:55 am-4:40 pm

2 stops19h 45m

Helsinki-Vantaa

Tue 10/7

6:40 am-5:51 pm

2 stops21h 11m

$619

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 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

What is the cheapest month to fly to Helsinki?

The month of November is, on average, the cheapest month to fly to Helsinki from San Francisco, with most prices found around $592. If you aren’t able to travel during the month of November, then book flights to Helsinki from San Francisco during October instead. Flights to Helsinki in October, while not as cheap as those in November, still average around $688.

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 Sunday when prices can be found for as low as $902. This is often the case because there is less demand to fly during this day of the week. Flights from San Francisco to Helsinki on a Saturday will generally be more expensive and average around $1,185. 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 in the evening. momondo users have found flights departing from San Francisco to Helsinki in the evening for as low as $931. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $1,133 per ticket.

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 $897 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 $728 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 July 2025, prices for San Francisco to Helsinki flights are approximately 32% 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

Best Price Found

$275

Fastest flight time

12h 45m

Direct flights

None

Airports in Helsinki

1 airport
The best one-way flight to Helsinki from San Francisco in the past 72 hours is $275. The best round-trip flight deal from San Francisco to Helsinki found on momondo in the last 72 hours is $538.
The fastest flight from San Francisco to Helsinki takes 12h 45m
There are no direct flights from San Francisco to Helsinki. Popular non-direct route for this connection is San Francisco Airport - Helsinki-Vantaa Airport.
There is 1 airport near Helsinki: Helsinki-Vantaa (HEL)
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  • 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 12h 45m.

  • 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?

  • 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?

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
KLMPriceFrom $447Free CancellationRating
7.8
1,383 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $526Free CancellationRating
7.3
1,449 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $554Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
British AirwaysPriceFrom $559Free CancellationRating
6.6
7,208 reviews
Search British Airways flights
American AirlinesPriceFrom $567Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Brussels AirlinesPriceFrom $578Free CancellationRating
7.2
350 reviews
Search Brussels Airlines flights
United AirlinesPriceFrom $582Free CancellationRating
7.4
8,896 reviews
Search United Airlines flights
DeltaPriceFrom $582Free CancellationRating
8.0
7,979 reviews
Search Delta flights
Air FrancePriceFrom $583Free CancellationRating
7.5
1,465 reviews
Search Air France flights
Turkish AirlinesPriceFrom $597Free CancellationRating
7.3
3,925 reviews
Search Turkish Airlines 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 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.

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