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Cheap flights from Helsinki to San Francisco from $431

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helsinki to San Francisco departing on 2/18. 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

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Multiple Airlines Logo
7:40 am - 2:35 pmHEL-SFO
16h 55m2 stops
Multiple Airlines Logo
4:40 pm - 9:25 amSFO-HEL
30h 45m2 stops
$678Multiple Airlines
Find Deal
Thu, Dec 11 - Fri, Dec 26
Scandinavian Airlines Logo
4:10 pm - 2:35 pmHEL-SFO
32h 25m2 stops
Scandinavian Airlines Logo
4:40 pm - 10:40 amSFO-HEL
32h 00m1 stop
$753Scandinavian Airlines
Find Deal
Thu, Dec 11 - Fri, Dec 26
Turkish Airlines Logo
12:30 pm - 4:45 pmHEL-SFO
38h 15m1 stop
Turkish Airlines Logo
6:50 pm - 6:05 pmSFO-HEL
37h 15m1 stop
$756Turkish Airlines
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Thu, Nov 20 - Wed, Dec 3
Lufthansa Logo
6:55 am - 12:40 pmHEL-SFO
15h 45m1 stop
Lufthansa Logo
1:30 pm - 6:50 pmSFO-HEL
19h 20m1 stop
$785Lufthansa
Find Deal
Thu, Nov 20 - Wed, Nov 26
Lufthansa Logo
12:45 pm - 7:35 pmHEL-SFO
16h 50m1 stop
Lufthansa Logo
2:40 pm - 1:20 amSFO-HEL
24h 40m1 stop
$801Lufthansa
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Thu, Dec 25 - Wed, Dec 31
Delta Logo
7:00 am - 11:50 amHEL-SFO
14h 50m1 stop
Delta Logo
7:00 am - 4:25 pmSFO-HEL
23h 25m2 stops
$815Delta
Find Deal
Thu, Nov 20 - Wed, Dec 3
Delta Logo
7:00 am - 6:57 pmHEL-SFO
21h 57m2 stops
Delta Logo
9:59 am - 4:25 pmSFO-HEL
20h 26m2 stops
$821Delta
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Thu, Nov 20 - Wed, Dec 3
American Airlines Logo
12:30 pm - 12:35 amHEL-SFO
22h 05m1 stop
American Airlines Logo
7:00 am - 10:45 amSFO-HEL
17h 45m1 stop
$876American Airlines
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Fri, Nov 21 - Sun, Dec 7
American Airlines Logo
12:30 pm - 10:33 pmHEL-SFO
20h 03m2 stops
American Airlines Logo
8:00 am - 10:45 amSFO-HEL
16h 45m1 stop
$1,003American Airlines
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Fri, Nov 21 - Sun, Dec 7
Turkish Airlines Logo
7:00 pm - 4:45 pmHEL-SFO
31h 45m1 stop
Turkish Airlines Logo
6:50 pm - 11:35 amSFO-HEL
30h 45m1 stop
$3,388Turkish Airlines
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Tue, Dec 2 - Fri, Jan 2

Lufthansa flights from Helsinki to San Francisco

Our best Lufthansa deals on Helsinki to San Francisco flight tickets
Lufthansa
Nov 20
HEL6:55 amHelsinki-Vantaa
15h 45m
1 stop
SFO12:40 pmSan Francisco
Nov 26
SFO1:30 pmSan Francisco
19h 20m
1 stop
HEL6:50 pmHelsinki-Vantaa
$785
Find similar
Lufthansa
Dec 25
HEL12:45 pmHelsinki-Vantaa
16h 50m
1 stop
SFO7:35 pmSan Francisco
Dec 31
SFO2:40 pmSan Francisco
24h 40m
1 stop
HEL1:20 amHelsinki-Vantaa
$801
Find similar
Lufthansa
Dec 25
HEL12:45 pmHelsinki-Vantaa
16h 50m
1 stop
SFO7:35 pmSan Francisco
Dec 31
SFO9:40 pmSan Francisco
17h 40m
2 stops
HEL1:20 amHelsinki-Vantaa
$837
Find similar

Delta flights from Helsinki to San Francisco

Our best Delta deals on Helsinki to San Francisco flight tickets
Delta
Nov 20
HEL7:00 amHelsinki-Vantaa
14h 50m
1 stop
SFO11:50 amSan Francisco
Dec 3
SFO7:00 amSan Francisco
23h 25m
2 stops
HEL4:25 pmHelsinki-Vantaa
$815
Find similar
Delta
Nov 20
HEL7:00 amHelsinki-Vantaa
21h 57m
2 stops
SFO6:57 pmSan Francisco
Dec 3
SFO9:59 amSan Francisco
20h 26m
2 stops
HEL4:25 pmHelsinki-Vantaa
$821
Find similar
Delta
Nov 20
HEL7:00 amHelsinki-Vantaa
18h 57m
2 stops
SFO3:57 pmSan Francisco
Nov 26
SFO8:15 amSan Francisco
18h 55m
2 stops
HEL1:10 pmHelsinki-Vantaa
$827
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Helsinki to San Francisco 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 November 6, 2025.
Use the filters below to find and compare flights from Helsinki to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 12/11

7:40 am-2:35 pm

2 stops16h 55m

San Francisco

Fri 12/26

4:40 pm-9:25 am

2 stops30h 45m

$678

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 12/11

4:10 pm-2:35 pm

2 stops32h 25m

San Francisco

Fri 12/26

4:40 pm-10:40 am

1 stop32h 00m

$753

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

12:30 pm-4:45 pm

1 stop38h 15m

San Francisco

Wed 12/3

6:50 pm-6:05 pm

1 stop37h 15m

$756

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

6:55 am-12:40 pm

1 stop15h 45m

San Francisco

Wed 11/26

1:30 pm-6:50 pm

1 stop19h 20m

$785

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 12/25

12:45 pm-7:35 pm

1 stop16h 50m

San Francisco

Wed 12/31

2:40 pm-1:20 am

1 stop24h 40m

$801

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

7:00 am-11:50 am

1 stop14h 50m

San Francisco

Wed 12/3

7:00 am-4:25 pm

2 stops23h 25m

$815

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

7:00 am-6:57 pm

2 stops21h 57m

San Francisco

Wed 12/3

9:59 am-4:25 pm

2 stops20h 26m

$821

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 11/21

12:30 pm-12:35 am

1 stop22h 05m

San Francisco

Sun 12/7

7:00 am-10:45 am

1 stop17h 45m

$876

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 11/21

12:30 pm-10:33 pm

2 stops20h 03m

San Francisco

Sun 12/7

8:00 am-10:45 am

1 stop16h 45m

$1,003

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Tue 12/2

7:00 pm-4:45 pm

1 stop31h 45m

San Francisco

Fri 1/2

6:50 pm-11:35 am

1 stop30h 45m

$3,388

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 San Francisco from

How to get the cheapest flight ticket from Helsinki to San Francisco

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 Helsinki and San Francisco?

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $798.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Helsinki to San Francisco is on a Wednesday when prices can be found for as low as $756. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $1,053.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Helsinki to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $911. Flights at noon are often more expensive with an average ticket price of $1,027.

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Helsinki when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $869 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Helsinki for as low as $789 on momondo.

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

As of November 2025, prices for Helsinki to San Francisco flights are approximately 87% more expensive when compared to flights at the same time last year.

When to book flights from Helsinki to San Francisco

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

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

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

Direct flights

None
There are no direct flights from Helsinki to San Francisco. There are no popular flight routes from Helsinki to San Francisco.
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  • How far is Helsinki-Vantaa to San Francisco by plane?

    San Francisco is 5415.4 mi away from Helsinki-Vantaa. Flights usually cover this in 14h 50m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helsinki-Vantaa Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Helsinki to San Francisco?

Best airlines flying from Helsinki to San Francisco

Compare and see reviews for airlines that fly from Helsinki to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $683Free CancellationRating
7.4
1,561 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $715Free CancellationRating
6.8
7,558 reviews
Search Lufthansa flights
American AirlinesPriceFrom $861Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Calistoga
Hayward
Big Sur
Santa Clara
Daly City
Fremont
Berkeley
Vallejo
Walnut Creek
Half Moon Bay
Salinas
Livermore
Turlock
South San Francisco

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Helsinki to San Francisco. momondo saves you time and could save you money on your trip.

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

Yes. All flights to San Francisco from Helsinki on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from Helsinki.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Helsinki and alert you when they change.

An easier way to manage your San Francisco 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.
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