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Cheap flights from Helsinki to San Francisco from $426

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 2/5. 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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0 bags

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Find the cheapest flights from Helsinki to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:40 pm - 11:50 am
HEL
-
SFO
29h 10m
2 stops
Multiple Airlines Logo
2:55 pm - 7:20 pm
SFO
-
HEL
19h 25m
2 stops
$576Multiple Airlines
Thu, Feb 26 - Wed, Mar 11
Multiple Airlines Logo
5:30 am - 7:35 pm
HEL
-
SFO
24h 05m
3 stops
Multiple Airlines Logo
3:40 pm - 7:20 pm
SFO
-
HEL
18h 40m
2 stops
$645Multiple Airlines
Thu, Feb 26 - Wed, Mar 11
Multiple Airlines Logo
8:15 pm - 3:18 pm
HEL
-
SFO
53h 03m
2 stops
Multiple Airlines Logo
10:40 pm - 11:35 pm
SFO
-
HEL
15h 55m
1 stop
$686Multiple Airlines
Thu, Feb 26 - Wed, Mar 11
Scandinavian Airlines Logo
4:05 pm - 3:35 pm
HEL
-
SFO
32h 30m
1 stop
Scandinavian Airlines Logo
5:40 pm - 8:20 pm
SFO
-
HEL
17h 40m
1 stop
$689Scandinavian Airlines
Sun, Mar 8 - Mon, Mar 23
Multiple Airlines Logo
9:10 am - 11:28 pm
HEL
-
SFO
47h 18m
2 stops
Multiple Airlines Logo
3:40 pm - 4:40 pm
SFO
-
HEL
16h 00m
1 stop
$710Multiple Airlines
Mon, Mar 9 - Mon, Mar 23
Scandinavian Airlines Logo
4:05 pm - 3:35 pm
HEL
-
SFO
32h 30m
1 stop
Scandinavian Airlines Logo
5:40 pm - 3:25 pm
SFO
-
HEL
12h 45m
1 stop
$721Scandinavian Airlines
Sun, Mar 8 - Mon, Mar 23
Multiple Airlines Logo
8:45 pm - 8:10 pm
HEL
-
SFO
33h 25m
2 stops
Multiple Airlines Logo
3:40 pm - 4:40 pm
SFO
-
HEL
16h 00m
1 stop
$723Multiple Airlines
Sat, Mar 7 - Mon, Mar 23
Scandinavian Airlines Logo
9:45 pm - 2:35 pm
HEL
-
SFO
26h 50m
2 stops
Scandinavian Airlines Logo
5:40 pm - 10:30 am
SFO
-
HEL
31h 50m
2 stops
$725Scandinavian Airlines
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
9:00 pm - 12:40 pm
HEL
-
SFO
25h 40m
2 stops
Multiple Airlines Logo
8:25 pm - 1:35 am
SFO
-
HEL
20h 10m
2 stops
$726Multiple Airlines
Sat, Mar 7 - Mon, Mar 23
Scandinavian Airlines Logo
4:05 pm - 3:35 pm
HEL
-
SFO
32h 30m
1 stop
Scandinavian Airlines Logo
5:40 pm - 11:45 pm
SFO
-
HEL
21h 05m
2 stops
$729Scandinavian Airlines
Sun, Mar 8 - Mon, Mar 23

United Airlines flights from Helsinki to San Francisco

Our best United Airlines deals on Helsinki to San Francisco flight tickets
United Airlines
Feb 17
HEL7:05 amHelsinki-Vantaa
18h 50m
1 stop
SFO3:55 pmSan Francisco
Feb 24
SFO11:59 pmSan Francisco
32h 51m
2 stops
HEL6:50 pmHelsinki-Vantaa
$847
United Airlines
Feb 17
HEL7:05 amHelsinki-Vantaa
22h 36m
2 stops
SFO7:41 pmSan Francisco
Feb 24
SFO10:35 amSan Francisco
22h 15m
2 stops
HEL6:50 pmHelsinki-Vantaa
$853
United Airlines
Mar 9
HEL6:55 amHelsinki-Vantaa
22h 07m
2 stops
SFO8:02 pmSan Francisco
Mar 23
SFO3:40 pmSan Francisco
16h 00m
1 stop
HEL4:40 pmHelsinki-Vantaa
$859

Delta flights from Helsinki to San Francisco

Our best Delta deals on Helsinki to San Francisco flight tickets
Delta
Mar 9
HEL7:00 amHelsinki-Vantaa
22h 25m
2 stops
SFO8:25 pmSan Francisco
Mar 23
SFO7:25 amSan Francisco
24h 00m
2 stops
HEL4:25 pmHelsinki-Vantaa
$819
Delta
Feb 6
HEL7:00 amHelsinki-Vantaa
14h 50m
1 stop
SFO11:50 amSan Francisco
Feb 16
SFO5:45 amSan Francisco
24h 40m
2 stops
HEL4:25 pmHelsinki-Vantaa
$820
Delta
Feb 6
HEL7:00 amHelsinki-Vantaa
14h 50m
1 stop
SFO11:50 amSan Francisco
Feb 16
SFO5:55 amSan Francisco
24h 30m
2 stops
HEL4:25 pmHelsinki-Vantaa
$825

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 January 21, 2026.
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 2/26

4:40 pm-11:50 am

2 stops29h 10m

San Francisco

Wed 3/11

2:55 pm-7:20 pm

2 stops19h 25m

$576

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 2/26

5:30 am-7:35 pm

3 stops24h 05m

San Francisco

Wed 3/11

3:40 pm-7:20 pm

2 stops18h 40m

$645

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 2/26

8:15 pm-3:18 pm

2 stops53h 03m

San Francisco

Wed 3/11

10:40 pm-11:35 pm

1 stop15h 55m

$686

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sun 3/8

4:05 pm-3:35 pm

1 stop32h 30m

San Francisco

Mon 3/23

5:40 pm-8:20 pm

1 stop17h 40m

$689

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 3/9

9:10 am-11:28 pm

2 stops47h 18m

San Francisco

Mon 3/23

3:40 pm-4:40 pm

1 stop16h 00m

$710

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sun 3/8

4:05 pm-3:35 pm

1 stop32h 30m

San Francisco

Mon 3/23

5:40 pm-3:25 pm

1 stop12h 45m

$721

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sat 3/7

8:45 pm-8:10 pm

2 stops33h 25m

San Francisco

Mon 3/23

3:40 pm-4:40 pm

1 stop16h 00m

$723

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 3/5

9:45 pm-2:35 pm

2 stops26h 50m

San Francisco

Thu 3/12

5:40 pm-10:30 am

2 stops31h 50m

$725

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sat 3/7

9:00 pm-12:40 pm

2 stops25h 40m

San Francisco

Mon 3/23

8:25 pm-1:35 am

2 stops20h 10m

$726

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sun 3/8

4:05 pm-3:35 pm

1 stop32h 30m

San Francisco

Mon 3/23

5:40 pm-11:45 pm

2 stops21h 05m

$729

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 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 April is also cheap. Prices for this month can be found on momondo for an average of $801.

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 $868 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 $769 on momondo.

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

As of January 2026, 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

Fastest flight time

18h 20m

Direct flights

None
The fastest flight from Helsinki to San Francisco takes 18h 20m
There are no direct flights from Helsinki to San Francisco. There are no popular flight routes from Helsinki to San Francisco.
Search flight deals

  • 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 18h 20m, 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 $682Free CancellationRating
7.3
1,660 reviews
Search Scandinavian 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
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Walnut Creek
Fremont
Daly City
Half Moon Bay
Salinas
Vallejo
Livermore
Sunnyvale
Turlock

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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