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Cheap flights from San Francisco to Helsinki from $376

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 1/31. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:25 am - 6:50 pmSFO-HEL
24h 25m2 stops
Multiple Airlines Logo
12:45 pm - 7:35 pmHEL-SFO
16h 50m1 stop
$454Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Multiple Airlines Logo
8:25 am - 6:50 pmSFO-HEL
24h 25m2 stops
Multiple Airlines Logo
12:45 pm - 7:35 pmHEL-SFO
16h 50m1 stop
$455Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Brussels Airlines Logo
2:40 pm - 4:40 pmSFO-HEL
16h 00m1 stop
Brussels Airlines Logo
5:45 pm - 12:40 pmHEL-SFO
28h 55m1 stop
$464Brussels Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Scandinavian Airlines Logo
7:10 am - 3:25 pmSFO-HEL
22h 15m2 stops
Scandinavian Airlines Logo
11:05 am - 2:35 pmHEL-SFO
37h 30m2 stops
$475Scandinavian Airlines
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Fri, Feb 6 - Fri, Feb 13
Scandinavian Airlines Logo
7:10 am - 3:25 pmSFO-HEL
22h 15m2 stops
Scandinavian Airlines Logo
6:15 am - 2:35 pmHEL-SFO
18h 20m1 stop
$477Scandinavian Airlines
Find Deal
Fri, Feb 6 - Fri, Feb 13
United Airlines Logo
1:30 pm - 6:50 pmSFO-HEL
19h 20m1 stop
United Airlines Logo
12:45 pm - 7:35 pmHEL-SFO
16h 50m1 stop
$481United Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Finnair Logo
10:35 am - 1:55 pmSFO-HEL
17h 20m1 stop
Finnair Logo
12:30 pm - 7:12 pmHEL-SFO
16h 42m1 stop
$482Finnair
Find Deal
Tue, Jan 20 - Tue, Feb 10
Lufthansa Logo
2:40 pm - 4:40 pmSFO-HEL
16h 00m1 stop
Lufthansa Logo
12:45 pm - 7:35 pmHEL-SFO
16h 50m1 stop
$489Lufthansa
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Mon, Dec 8 - Wed, Dec 24
United Airlines Logo
1:25 pm - 6:50 pmSFO-HEL
19h 25m2 stops
United Airlines Logo
6:55 am - 10:55 pmHEL-SFO
26h 00m2 stops
$494United Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Lufthansa Logo
2:40 pm - 4:40 pmSFO-HEL
16h 00m1 stop
Lufthansa Logo
7:35 pm - 7:35 pmHEL-SFO
34h 00m1 stop
$499Lufthansa
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Mon, Dec 1 - Mon, Dec 8

Brussels Airlines flights from San Francisco to Helsinki

Our best Brussels Airlines deals on San Francisco to Helsinki flight tickets
Brussels Airlines
Dec 1
SFO2:40 pmSan Francisco
16h 00m
1 stop
HEL4:40 pmHelsinki-Vantaa
Dec 8
HEL5:45 pmHelsinki-Vantaa
28h 55m
1 stop
SFO12:40 pmSan Francisco
$464
Find similar
Brussels Airlines
Dec 1
SFO2:40 pmSan Francisco
16h 00m
1 stop
HEL4:40 pmHelsinki-Vantaa
Dec 8
HEL5:45 pmHelsinki-Vantaa
28h 55m
1 stop
SFO12:40 pmSan Francisco
$483
Find similar

United Airlines flights from San Francisco to Helsinki

Our best United Airlines deals on San Francisco to Helsinki flight tickets
United Airlines
Dec 8
SFO1:30 pmSan Francisco
19h 20m
1 stop
HEL6:50 pmHelsinki-Vantaa
Dec 24
HEL12:45 pmHelsinki-Vantaa
16h 50m
1 stop
SFO7:35 pmSan Francisco
$481
Find similar
United Airlines
Dec 8
SFO1:25 pmSan Francisco
19h 25m
2 stops
HEL6:50 pmHelsinki-Vantaa
Dec 24
HEL6:55 amHelsinki-Vantaa
26h 00m
2 stops
SFO10:55 pmSan Francisco
$494
Find similar
United Airlines
Dec 1
SFO1:28 pmSan Francisco
19h 22m
2 stops
HEL6:50 pmHelsinki-Vantaa
Dec 8
HEL1:55 pmHelsinki-Vantaa
32h 45m
1 stop
SFO12:40 pmSan Francisco
$503
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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 October 30, 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

Mon 12/8

8:25 am-6:50 pm

2 stops24h 25m

Helsinki-Vantaa

Wed 12/24

12:45 pm-7:35 pm

1 stop16h 50m

$454

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/8

8:25 am-6:50 pm

2 stops24h 25m

Helsinki-Vantaa

Wed 12/24

12:45 pm-7:35 pm

1 stop16h 50m

$455

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/1

2:40 pm-4:40 pm

1 stop16h 00m

Helsinki-Vantaa

Mon 12/8

5:45 pm-12:40 pm

1 stop28h 55m

$464

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Fri 2/6

7:10 am-3:25 pm

2 stops22h 15m

Helsinki-Vantaa

Fri 2/13

11:05 am-2:35 pm

2 stops37h 30m

$475

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Fri 2/6

7:10 am-3:25 pm

2 stops22h 15m

Helsinki-Vantaa

Fri 2/13

6:15 am-2:35 pm

1 stop18h 20m

$477

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/8

1:30 pm-6:50 pm

1 stop19h 20m

Helsinki-Vantaa

Wed 12/24

12:45 pm-7:35 pm

1 stop16h 50m

$481

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 1/20

10:35 am-1:55 pm

1 stop17h 20m

Helsinki-Vantaa

Tue 2/10

12:30 pm-7:12 pm

1 stop16h 42m

$482

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/8

2:40 pm-4:40 pm

1 stop16h 00m

Helsinki-Vantaa

Wed 12/24

12:45 pm-7:35 pm

1 stop16h 50m

$489

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/8

1:25 pm-6:50 pm

2 stops19h 25m

Helsinki-Vantaa

Wed 12/24

6:55 am-10:55 pm

2 stops26h 00m

$494

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/1

2:40 pm-4:40 pm

1 stop16h 00m

Helsinki-Vantaa

Mon 12/8

7:35 pm-7:35 pm

1 stop34h 00m

$499

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 $642. 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 $685.

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 $899 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 $757 on momondo.

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

You could potentially save up to 10% 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 October 2025, prices for San Francisco to Helsinki flights are approximately 14% 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

Direct flights

None
There are no direct flights from San Francisco to Helsinki. There are no popular flight routes from San Francisco to Helsinki.
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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
Scandinavian AirlinesPriceFrom $496Free CancellationRating
7.4
1,548 reviews
Search Scandinavian Airlines flights
Air FrancePriceFrom $569Free CancellationRating
7.4
1,482 reviews
Search Air France flights
LufthansaPriceFrom $577Free CancellationRating
6.8
7,542 reviews
Search Lufthansa flights
Brussels AirlinesPriceFrom $578Free CancellationRating
7.2
369 reviews
Search Brussels Airlines flights
FinnairPriceFrom $580Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
American AirlinesPriceFrom $580Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights
United AirlinesPriceFrom $615Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $623Free CancellationRating
7.3
4,032 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $685Free CancellationRating
6.7
7,488 reviews
Search British Airways flights
DeltaPriceFrom $705Free CancellationRating
7.9
7,998 reviews
Search Delta flights

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
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.

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