Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Helsinki to San Francisco from $329

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 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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 Helsinki to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
9:00 pm - 2:35 pmHEL-SFO
27h 35m1 stop
Scandinavian Airlines Logo
4:40 pm - 8:20 pmSFO-HEL
17h 40m1 stop
$638Scandinavian Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Scandinavian Airlines Logo
6:15 am - 2:35 pmHEL-SFO
18h 20m1 stop
Scandinavian Airlines Logo
4:40 pm - 11:45 pmSFO-HEL
21h 05m2 stops
$655Scandinavian Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Scandinavian Airlines Logo
4:10 pm - 2:35 pmHEL-SFO
32h 25m2 stops
Scandinavian Airlines Logo
4:40 pm - 10:35 amSFO-HEL
31h 55m2 stops
$662Scandinavian Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Scandinavian Airlines Logo
4:05 pm - 2:35 pmHEL-SFO
32h 30m1 stop
Scandinavian Airlines Logo
4:40 pm - 10:40 amSFO-HEL
32h 00m1 stop
$679Scandinavian Airlines
Find Deal
Fri, Jan 23 - Fri, Jan 30
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
$686Scandinavian Airlines
Find Deal
Fri, Jan 23 - Fri, Jan 30
Scandinavian Airlines Logo
4:10 pm - 2:35 pmHEL-SFO
32h 25m2 stops
Scandinavian Airlines Logo
4:40 pm - 2:55 pmSFO-HEL
36h 15m2 stops
$699Scandinavian Airlines
Find Deal
Fri, Jan 23 - Fri, Jan 30
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
$700Scandinavian Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Scandinavian Airlines Logo
4:10 pm - 2:35 pmHEL-SFO
32h 25m2 stops
Scandinavian Airlines Logo
4:40 pm - 11:45 pmSFO-HEL
21h 05m2 stops
$707Scandinavian Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Scandinavian Airlines Logo
4:05 pm - 2:35 pmHEL-SFO
32h 30m1 stop
Scandinavian Airlines Logo
4:40 pm - 3:25 pmSFO-HEL
12h 45m1 stop
$750Scandinavian Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Scandinavian Airlines Logo
4:05 pm - 2:35 pmHEL-SFO
32h 30m1 stop
Scandinavian Airlines Logo
4:40 pm - 10:40 amSFO-HEL
32h 00m1 stop
$751Scandinavian Airlines
Find Deal
Sat, Feb 21 - Fri, Feb 27

Lufthansa flights from Helsinki to San Francisco

Our best Lufthansa deals on Helsinki to San Francisco flight tickets
Lufthansa
Jan 15
HEL6:55 amHelsinki-Vantaa
19h 00m
1 stop
SFO3:55 pmSan Francisco
Jan 29
SFO1:30 pmSan Francisco
19h 20m
1 stop
HEL6:50 pmHelsinki-Vantaa
$785
Find similar
Lufthansa
Jan 8
HEL1:55 pmHelsinki-Vantaa
21h 35m
2 stops
SFO1:30 amSan Francisco
Jan 15
SFO2:40 pmSan Francisco
24h 40m
1 stop
HEL1:20 amHelsinki-Vantaa
$910
Find similar
Lufthansa
Dec 22
HEL7:35 pmHelsinki-Vantaa
27h 05m
2 stops
SFO12:40 pmSan Francisco
Jan 10
SFO1:30 pmSan Francisco
25h 50m
2 stops
HEL1:20 amHelsinki-Vantaa
$915
Find similar

Finnair flights from Helsinki to San Francisco

Our best Finnair deals on Helsinki to San Francisco flight tickets
Finnair
Jan 15
HEL4:50 pmHelsinki-Vantaa
17h 57m
1 stop
SFO12:47 amSan Francisco
Jan 29
SFO10:35 amSan Francisco
17h 20m
1 stop
HEL1:55 pmHelsinki-Vantaa
$825
Find similar
Finnair
Jan 9
HEL4:50 pmHelsinki-Vantaa
17h 57m
1 stop
SFO12:47 amSan Francisco
Jan 16
SFO10:11 amSan Francisco
14h 34m
1 stop
HEL10:45 amHelsinki-Vantaa
$885
Find similar
Finnair
Nov 28
HEL4:50 pmHelsinki-Vantaa
17h 09m
1 stop
SFO11:59 pmSan Francisco
Dec 5
SFO12:39 pmSan Francisco
15h 16m
1 stop
HEL1:55 pmHelsinki-Vantaa
$1,583
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 26, 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

Fri 1/30

9:00 pm-2:35 pm

1 stop27h 35m

San Francisco

Mon 2/9

4:40 pm-8:20 pm

1 stop17h 40m

$638

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/30

6:15 am-2:35 pm

1 stop18h 20m

San Francisco

Mon 2/9

4:40 pm-11:45 pm

2 stops21h 05m

$655

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/30

4:10 pm-2:35 pm

2 stops32h 25m

San Francisco

Mon 2/9

4:40 pm-10:35 am

2 stops31h 55m

$662

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/23

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

Fri 1/30

4:40 pm-10:40 am

1 stop32h 00m

$679

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/23

4:10 pm-2:35 pm

2 stops32h 25m

San Francisco

Fri 1/30

4:40 pm-10:40 am

1 stop32h 00m

$686

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/23

4:10 pm-2:35 pm

2 stops32h 25m

San Francisco

Fri 1/30

4:40 pm-2:55 pm

2 stops36h 15m

$699

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/30

4:10 pm-2:35 pm

2 stops32h 25m

San Francisco

Mon 2/9

4:40 pm-10:40 am

1 stop32h 00m

$700

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/30

4:10 pm-2:35 pm

2 stops32h 25m

San Francisco

Mon 2/9

4:40 pm-11:45 pm

2 stops21h 05m

$707

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Fri 1/30

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

Mon 2/9

4:40 pm-3:25 pm

1 stop12h 45m

$750

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sat 2/21

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

Fri 2/27

4:40 pm-10:40 am

1 stop32h 00m

$751

Flights are sorted by cheapest round-trip flights first.

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

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 $795.

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 $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 November 2025, prices for Helsinki to San Francisco flights are approximately 98% 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

16h 50m

Direct flights

None
The fastest flight from Helsinki to San Francisco takes 16h 50m
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 15h 45m, 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
1,589 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $715Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
American AirlinesPriceFrom $861Free CancellationRating
7.2
11,037 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
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Daly City
Walnut Creek
Fremont
Half Moon Bay
Vallejo
Salinas
Livermore
Turlock
Pacific Grove

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 12/26
Fri 1/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States