Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Helsinki from $308

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 11/10. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to Helsinki

Cheap round-trip flights

Scandinavian Airlines Logo
10:30 am - 3:25 pmSFO-HEL
18h 55m2 stops
Scandinavian Airlines Logo
8:55 pm - 2:35 pmHEL-SFO
27h 40m2 stops
$465Scandinavian Airlines
Find Deal
Wed, Oct 22 - Wed, Nov 12
Scandinavian Airlines Logo
3:30 pm - 8:15 pmSFO-HEL
18h 45m2 stops
Scandinavian Airlines Logo
6:15 am - 4:10 pmHEL-SFO
18h 55m1 stop
$475Scandinavian Airlines
Find Deal
Mon, Oct 13 - Tue, Oct 28
Finnair Logo
3:28 pm - 3:20 pmSFO-HEL
14h 52m1 stop
Finnair Logo
4:00 pm - 11:58 pmHEL-SFO
17h 58m1 stop
$492Finnair
Find Deal
Tue, Oct 28 - Tue, Nov 4
Finnair Logo
10:40 am - 1:55 pmSFO-HEL
17h 15m1 stop
Finnair Logo
4:50 pm - 12:22 amHEL-SFO
17h 32m1 stop
$503Finnair
Find Deal
Tue, Jan 20 - Tue, Feb 10
American Airlines Logo
6:00 am - 10:45 amSFO-HEL
18h 45m1 stop
American Airlines Logo
12:30 pm - 7:22 pmHEL-SFO
16h 52m1 stop
$504American Airlines
Find Deal
Mon, Oct 20 - Tue, Nov 4
American Airlines Logo
8:15 am - 10:45 amSFO-HEL
16h 30m1 stop
American Airlines Logo
12:30 pm - 9:58 pmHEL-SFO
19h 28m2 stops
$507American Airlines
Find Deal
Tue, Jan 20 - Tue, Feb 10
Lufthansa Logo
9:05 pm - 11:50 pmSFO-HEL
16h 45m1 stop
Lufthansa Logo
6:55 am - 12:40 pmHEL-SFO
15h 45m1 stop
$524Lufthansa
Find Deal
Mon, Sep 29 - Wed, Nov 26
Lufthansa Logo
2:40 pm - 6:50 pmSFO-HEL
18h 10m2 stops
Lufthansa Logo
7:05 am - 12:40 pmHEL-SFO
15h 35m1 stop
$551Lufthansa
Find Deal
Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
6:00 am - 6:50 pmSFO-HEL
26h 50m2 stops
United Airlines Logo
6:55 am - 12:40 pmHEL-SFO
15h 45m1 stop
$558United Airlines
Find Deal
Mon, Dec 15 - Thu, Dec 25
United Airlines Logo
7:10 am - 4:40 pmSFO-HEL
23h 30m2 stops
United Airlines Logo
6:55 am - 8:08 pmHEL-SFO
23h 13m2 stops
$568United Airlines
Find Deal
Mon, Sep 29 - Wed, Nov 26

Air Canada flights from San Francisco to Helsinki

Our best Air Canada deals on San Francisco to Helsinki flight tickets
Air Canada
Nov 17
SFO8:25 amSan Francisco
24h 25m
2 stops
HEL6:50 pmHelsinki-Vantaa
Dec 2
HEL1:55 pmHelsinki-Vantaa
35h 20m
2 stops
SFO3:15 pmSan Francisco
$480
Find similar
Air Canada
Oct 20
SFO11:45 pmSan Francisco
27h 05m
2 stops
HEL12:50 pmHelsinki-Vantaa
Nov 4
HEL7:05 amHelsinki-Vantaa
24h 29m
2 stops
SFO9:34 pmSan Francisco
$486
Find similar
Air Canada
Jan 20
SFO11:03 amSan Francisco
21h 47m
2 stops
HEL6:50 pmHelsinki-Vantaa
Feb 10
HEL7:05 amHelsinki-Vantaa
24h 29m
2 stops
SFO9:34 pmSan Francisco
$532
Find similar

American Airlines flights from San Francisco to Helsinki

Our best American Airlines deals on San Francisco to Helsinki flight tickets
American Airlines
Oct 20
SFO6:00 amSan Francisco
18h 45m
1 stop
HEL10:45 amHelsinki-Vantaa
Nov 4
HEL12:30 pmHelsinki-Vantaa
16h 52m
1 stop
SFO7:22 pmSan Francisco
$504
Find similar
American Airlines
Jan 20
SFO8:15 amSan Francisco
16h 30m
1 stop
HEL10:45 amHelsinki-Vantaa
Feb 10
HEL12:30 pmHelsinki-Vantaa
19h 28m
2 stops
SFO9:58 pmSan Francisco
$507
Find similar
American Airlines
Sep 29
SFO6:10 amSan Francisco
21h 50m
1 stop
HEL2:00 pmHelsinki-Vantaa
Nov 26
HEL5:00 pmHelsinki-Vantaa
17h 12m
1 stop
SFO12:12 amSan Francisco
$546
Find similar

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 September 15, 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

Wed 10/22

10:30 am-3:25 pm

2 stops18h 55m

Helsinki-Vantaa

Wed 11/12

8:55 pm-2:35 pm

2 stops27h 40m

$465

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 10/13

3:30 pm-8:15 pm

2 stops18h 45m

Helsinki-Vantaa

Tue 10/28

6:15 am-4:10 pm

1 stop18h 55m

$475

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 10/28

3:28 pm-3:20 pm

1 stop14h 52m

Helsinki-Vantaa

Tue 11/4

4:00 pm-11:58 pm

1 stop17h 58m

$492

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 1/20

10:40 am-1:55 pm

1 stop17h 15m

Helsinki-Vantaa

Tue 2/10

4:50 pm-12:22 am

1 stop17h 32m

$503

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 10/20

6:00 am-10:45 am

1 stop18h 45m

Helsinki-Vantaa

Tue 11/4

12:30 pm-7:22 pm

1 stop16h 52m

$504

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Tue 1/20

8:15 am-10:45 am

1 stop16h 30m

Helsinki-Vantaa

Tue 2/10

12:30 pm-9:58 pm

2 stops19h 28m

$507

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 9/29

9:05 pm-11:50 pm

1 stop16h 45m

Helsinki-Vantaa

Wed 11/26

6:55 am-12:40 pm

1 stop15h 45m

$524

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 11/17

2:40 pm-6:50 pm

2 stops18h 10m

Helsinki-Vantaa

Tue 12/2

7:05 am-12:40 pm

1 stop15h 35m

$551

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 12/15

6:00 am-6:50 pm

2 stops26h 50m

Helsinki-Vantaa

Thu 12/25

6:55 am-12:40 pm

1 stop15h 45m

$558

San FranciscoHelsinki

SFO - HEL

SFOHEL

San Francisco

Mon 9/29

7:10 am-4:40 pm

2 stops23h 30m

Helsinki-Vantaa

Wed 11/26

6:55 am-8:08 pm

2 stops23h 13m

$568

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

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 $602. 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 $692.

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 $898 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 $819 on momondo.

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

You could potentially save up to 19% 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 September 2025, prices for San Francisco to Helsinki flights are approximately 25% 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

Direct flights

None
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 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 $419Free CancellationRating
7.8
1,385 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $526Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $562Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
FinnairPriceFrom $564Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
American AirlinesPriceFrom $567Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Brussels AirlinesPriceFrom $578Free CancellationRating
7.2
359 reviews
Search Brussels Airlines flights
Air FrancePriceFrom $583Free CancellationRating
7.4
1,469 reviews
Search Air France flights
DeltaPriceFrom $586Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Turkish AirlinesPriceFrom $597Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $597Free CancellationRating
7.4
8,929 reviews
Search United 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.

An easier way to manage your Helsinki trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Finland