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Cheap flights from Helsinki to San Francisco from $451

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 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Helsinki to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
4:00 pm - 2:40 pm
HEL
-
SFO
32h 40m
1 stop
Scandinavian Airlines Logo
4:45 pm - 8:35 pm
SFO
-
HEL
17h 50m
2 stops
$957Scandinavian Airlines
Mon, Sep 7 - Mon, Sep 14
Delta Logo
7:00 am - 11:45 am
HEL
-
SFO
14h 45m
1 stop
Delta Logo
9:30 am - 5:40 pm
SFO
-
HEL
22h 10m
2 stops
$958Delta
Mon, Sep 7 - Mon, Sep 14
Multiple Airlines Logo
6:55 am - 12:40 pm
HEL
-
SFO
15h 45m
1 stop
Multiple Airlines Logo
9:05 pm - 1:35 am
SFO
-
HEL
18h 30m
1 stop
$960Multiple Airlines
Mon, Aug 31 - Mon, Sep 14
Delta Logo
1:55 pm - 11:45 am
HEL
-
SFO
31h 50m
1 stop
Delta Logo
3:05 pm - 4:40 pm
SFO
-
HEL
15h 35m
1 stop
$963Delta
Mon, Aug 31 - Mon, Sep 14
Multiple Airlines Logo
3:50 pm - 1:15 pm
HEL
-
SFO
31h 25m
3 stops
Multiple Airlines Logo
3:15 pm - 1:05 pm
SFO
-
HEL
35h 50m
3 stops
$964Multiple Airlines
Mon, Aug 31 - Mon, Sep 14
Lufthansa Logo
6:00 am - 7:25 pm
HEL
-
SFO
23h 25m
2 stops
Lufthansa Logo
9:05 pm - 1:35 am
SFO
-
HEL
18h 30m
1 stop
$991Lufthansa
Thu, Aug 13 - Tue, Aug 18
Lufthansa Logo
6:55 am - 12:40 pm
HEL
-
SFO
15h 45m
1 stop
Lufthansa Logo
2:40 pm - 6:55 pm
SFO
-
HEL
18h 15m
2 stops
$998Lufthansa
Mon, Aug 31 - Mon, Sep 14
Lufthansa Logo
6:35 am - 12:40 pm
HEL
-
SFO
16h 05m
1 stop
Lufthansa Logo
9:05 pm - 1:35 am
SFO
-
HEL
18h 30m
1 stop
$1,027Lufthansa
Thu, Aug 13 - Tue, Aug 18
Scandinavian Airlines Logo
9:05 pm - 2:40 pm
HEL
-
SFO
27h 35m
1 stop
Scandinavian Airlines Logo
4:45 pm - 3:20 pm
SFO
-
HEL
12h 35m
1 stop
$1,042Scandinavian Airlines
Mon, Aug 17 - Sat, Sep 5
Lufthansa Logo
6:35 am - 12:40 pm
HEL
-
SFO
16h 05m
1 stop
Lufthansa Logo
9:05 pm - 1:35 am
SFO
-
HEL
18h 30m
1 stop
$1,050Lufthansa
Thu, Aug 13 - Mon, Aug 17

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Scandinavian Airlines flights from Helsinki to San Francisco

Our best Scandinavian Airlines deals on Helsinki to San Francisco flight tickets
Scandinavian Airlines
Sep 7
HEL4:00 pmHelsinki-Vantaa
32h 40m
1 stop
SFO2:40 pmSan Francisco
Sep 14
SFO4:45 pmSan Francisco
17h 50m
2 stops
HEL8:35 pmHelsinki-Vantaa
$957
Scandinavian Airlines
Aug 25
HEL9:15 pmHelsinki-Vantaa
27h 25m
2 stops
SFO2:40 pmSan Francisco
Sep 2
SFO4:45 pmSan Francisco
21h 05m
2 stops
HEL11:50 pmHelsinki-Vantaa
$986
Scandinavian Airlines
Aug 17
HEL9:05 pmHelsinki-Vantaa
27h 35m
1 stop
SFO2:40 pmSan Francisco
Sep 5
SFO4:45 pmSan Francisco
12h 35m
1 stop
HEL3:20 pmHelsinki-Vantaa
$1,042

Lufthansa flights from Helsinki to San Francisco

Our best Lufthansa deals on Helsinki to San Francisco flight tickets
Lufthansa
Aug 31
HEL6:55 amHelsinki-Vantaa
15h 45m
1 stop
SFO12:40 pmSan Francisco
Sep 14
SFO2:40 pmSan Francisco
18h 15m
2 stops
HEL6:55 pmHelsinki-Vantaa
$998
Lufthansa
Aug 13
HEL6:35 amHelsinki-Vantaa
16h 05m
1 stop
SFO12:40 pmSan Francisco
Aug 18
SFO9:05 pmSan Francisco
18h 30m
1 stop
HEL1:35 amHelsinki-Vantaa
$1,027
Lufthansa
Aug 13
HEL6:35 amHelsinki-Vantaa
16h 05m
1 stop
SFO12:40 pmSan Francisco
Aug 17
SFO9:05 pmSan Francisco
18h 30m
1 stop
HEL1:35 amHelsinki-Vantaa
$1,050

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 July 28, 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

Cheapest round-trip

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 9/7

4:00 pm-2:40 pm

1 stop32h 40m

San Francisco

Mon 9/14

4:45 pm-8:35 pm

2 stops17h 50m

$957

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 9/7

7:00 am-11:45 am

1 stop14h 45m

San Francisco

Mon 9/14

9:30 am-5:40 pm

2 stops22h 10m

$958

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 8/31

6:55 am-12:40 pm

1 stop15h 45m

San Francisco

Mon 9/14

9:05 pm-1:35 am

1 stop18h 30m

$960

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 8/31

1:55 pm-11:45 am

1 stop31h 50m

San Francisco

Mon 9/14

3:05 pm-4:40 pm

1 stop15h 35m

$963

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 8/31

3:50 pm-1:15 pm

3 stops31h 25m

San Francisco

Mon 9/14

3:15 pm-1:05 pm

3 stops35h 50m

$964

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 8/13

6:00 am-7:25 pm

2 stops23h 25m

San Francisco

Tue 8/18

9:05 pm-1:35 am

1 stop18h 30m

$991
Quickest round-trip

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 8/31

6:55 am-12:40 pm

1 stop15h 45m

San Francisco

Mon 9/14

2:40 pm-6:55 pm

2 stops18h 15m

$998

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 8/13

6:35 am-12:40 pm

1 stop16h 05m

San Francisco

Tue 8/18

9:05 pm-1:35 am

1 stop18h 30m

$1,027

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 8/17

9:05 pm-2:40 pm

1 stop27h 35m

San Francisco

Sat 9/5

4:45 pm-3:20 pm

1 stop12h 35m

$1,042

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 8/13

6:35 am-12:40 pm

1 stop16h 05m

San Francisco

Mon 8/17

9:05 pm-1:35 am

1 stop18h 30m

$1,050

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $948 to $1,137.
The lowest price recently found on this route was $957.

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 January is also cheap. Prices for this month can be found on momondo for an average of $813.

How far in advance should I book a flight from Helsinki 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 $945 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 $773 on momondo.

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

You could potentially save up to 49% on your flight if you consider stops on a Helsinki to San Francisco flight.

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

As of July 2026, prices for Helsinki to San Francisco flights are approximately 13% 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

Frequently asked questions about flying from Helsinki to San Francisco

  • How far is Helsinki-Vantaa to San Francisco by plane?

    San Francisco is 5415.9 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
7.4
1,903 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $868Free CancellationRating
6.8
8,162 reviews
Search Lufthansa 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
South San Francisco
Fremont
Berkeley
Hayward
Walnut Creek
Bodega Bay
Sonoma
Roseville
Santa Clara
Vallejo
Salinas
Sunnyvale
Burlingame
Milpitas
Daly City
Palo Alto
Big Sur

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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