HEL - SFO

$429 Find Cheap Flights from Helsinki to San Francisco - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$790
Typical prices: $838-$1,145
Turkish Airlines
Thu 11/15Sat 12/1
HEL - SFO • 1 stop
Cheapest one-way
$431
Typical prices: $909-$1,358
Multiple Airlines
Wed 12/12
HEL - SFO • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Helsinki and San Francisco. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
25 weeks
in advance
Our data shows that travelers who book at least 25 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 23% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Istanbul (IST)
Cheapest • Avg $860 (round-trip)
Seattle/Tacoma Intl (SEA)
Shortest trip • 13h 17m (one-way)
Insights
Insights
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We hope you love your trip to San Francisco!

Cheap Flights from Helsinki to San Francisco (HEL-SFO)

 

Cheap flights from Helsinki to San Francisco with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Sun, Nov 15 - Tue, Dec 1
Turkish Airlines Logo
7:05 pm - 4:30 pmHEL  Helsinki-Vantaa-SFO San Francisco
31h 25m1 stop Istanbul
Turkish Airlines Logo
6:35 pm - 6:10 pmSFO  San Francisco-HEL Helsinki-Vantaa
37h 35m1 stop Istanbul
$790Turkish Airlines
Thu, Nov 12 - Wed, Nov 25
Turkish Airlines Logo
12:15 pm - 4:30 pmHEL  Helsinki-Vantaa-SFO San Francisco
38h 15m1 stop Istanbul
Turkish Airlines Logo
6:35 pm - 6:10 pmSFO  San Francisco-HEL Helsinki-Vantaa
37h 35m1 stop Istanbul
$790Turkish Airlines
Mon, Dec 14 - Mon, Dec 28
Scandinavian Airlines Logo
7:00 am - 2:50 pmHEL  Helsinki-Vantaa-SFO San Francisco
17h 50m2 stops Stockholm Arlanda Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 3:25 pmSFO  San Francisco-HEL Helsinki-Vantaa
36h 40m2 stops Kastrup Copenhagen Stockholm Arlanda
$791Scandinavian Airlines
Sun, Nov 22 - Sat, Dec 5
Scandinavian Airlines Logo
11:10 am - 2:50 pmHEL  Helsinki-Vantaa-SFO San Francisco
13h 40m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 8:20 pmSFO  San Francisco-HEL Helsinki-Vantaa
17h 35m1 stop Kastrup Copenhagen
$793Scandinavian Airlines
Thu, Nov 26 - Thu, Dec 3
Lufthansa Logo
7:00 am - 12:35 pmHEL  Helsinki-Vantaa-SFO San Francisco
15h 35m1 stop Frankfurt am Main
Lufthansa Logo
2:45 pm - 1:30 amSFO  San Francisco-HEL Helsinki-Vantaa
24h 45m1 stop Frankfurt am Main
$901Lufthansa
Thu, Nov 12 - Wed, Nov 25
Lufthansa Logo
12:35 pm - 7:35 pmHEL  Helsinki-Vantaa-SFO San Francisco
17h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
9:40 pm - 11:50 amSFO  San Francisco-HEL Helsinki-Vantaa
28h 10m1 stop Munich Franz Josef Strauss
$940Lufthansa
Thu, Nov 12 - Wed, Nov 25
American Airlines Logo
12:30 pm - 12:39 amHEL  Helsinki-Vantaa-SFO San Francisco
22h 09m1 stop Dallas/Fort Worth
American Airlines Logo
2:01 pm - 11:40 amSFO  San Francisco-HEL Helsinki-Vantaa
35h 39m1 stop Dallas/Fort Worth
$989American Airlines
Sun, Nov 15 - Tue, Dec 1
American Airlines Logo
12:30 pm - 8:48 pmHEL  Helsinki-Vantaa-SFO San Francisco
18h 18m1 stop Dallas/Fort Worth
American Airlines Logo
12:00 pm - 3:20 pmSFO  San Francisco-HEL Helsinki-Vantaa
17h 20m1 stop Los Angeles
$989American Airlines
Wed, Dec 9 - Tue, Dec 15
Finnair Logo
4:50 pm - 12:48 amHEL  Helsinki-Vantaa-SFO San Francisco
17h 58m1 stop New York John F Kennedy Intl
Finnair Logo
8:55 am - 10:45 amSFO  San Francisco-HEL Helsinki-Vantaa
15h 50m1 stop Dallas/Fort Worth
$1,002Finnair
Wed, Dec 9 - Tue, Dec 15
Finnair Logo
4:50 pm - 12:48 amHEL  Helsinki-Vantaa-SFO San Francisco
17h 58m1 stop New York John F Kennedy Intl
Finnair Logo
8:55 am - 10:45 amSFO  San Francisco-HEL Helsinki-Vantaa
15h 50m1 stop Dallas/Fort Worth
$1,003Finnair

Price, demand and travel trends for Helsinki to San Francisco flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Helsinki to San Francisco?

Round-trip flights from Helsinki to San Francisco typically range from $838 to $1,145. The lowest price found in the past 5 days was $790, on Turkish Airlines.

What's the cheapest day of the week to fly from Helsinki to San Francisco?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Helsinki to San Francisco. It’s 8% cheaper than the average day, while Saturday is the most expensive, with prices 13% higher.

What’s the cheapest month to fly from Helsinki to San Francisco?

•February is the cheapest month to fly from Helsinki to San Francisco at $762 round-trip.
•August ($1,147) and July ($1,133) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 50% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Helsinki to San Francisco the cheapest?

Flights from Helsinki to San Francisco are cheapest 25 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Helsinki to San Francisco flights

Low season

February

Cheapest flight

$431
Beat the crowds with an average 51% drop in travelers.
The most popular month to fly with an average 46% increase in travelers.
One-way flight from Helsinki to San Francisco

When to book flights from Helsinki to San Francisco

Are your dates flexible? Find out the best times to travel from Helsinki to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Helsinki to San Francisco flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Helsinki to San Francisco?

    Two cabin classes are available on flights from Helsinki to San Francisco:

    • Economy Class
    • Business Class

  • How long is a flight from Helsinki to San Francisco?

    A nonstop flight from Helsinki to San Francisco takes 00m, covering 5,417 miles.

  • Do I need a passport to fly from Helsinki to San Francisco?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Helsinki to San Francisco flight?

    Round-trip flights from Helsinki to San Francisco range from $838 to $1,145, with an average of $992 over the past 12 months. Anything below $838 counts as a good deal.

  • How expensive are last-minute Helsinki to San Francisco flights?

    Last-minute fares on this route (booked within two weeks of departure) run 28% above the $992 route average. Book 25 weeks before departure for the lowest fares.

  • Have flight prices from Helsinki to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $790 to $5,117. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Helsinki to San Francisco looking right now?

    One-way fares from Helsinki to San Francisco are currently lower than usual. Average one-way flight prices are about $863, which is 24% below the typical average for this route.

  • What car rental options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:

    • Europcar
    • Thrifty
    • Dollar
    • Hertz
    • Fox

  • Which airports can I use when flying from Helsinki to San Francisco?

    Flights from Helsinki to San Francisco usually depart from Helsinki-Vantaa (HEL) and arrive at San Francisco (SFO).

  • Which airports do connecting flights from Helsinki to San Francisco pass through?

    One-stop flights from Helsinki to San Francisco most commonly connect through:

    • Kastrup Copenhagen (CPH) - 38% of one-stop connections
    • Frankfurt am Main (FRA) - 19% of one-stop connections
    • Amsterdam Schiphol (AMS) - 18% of one-stop connections
    • Istanbul (IST) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Helsinki to San Francisco?

    Yes. Flexible dates can save you up to 19% on flights from Helsinki to San Francisco. Wednesday is the cheapest departure day at $918 round-trip on average, while Saturday is the most expensive at $1,121, a difference of $203.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Helsinki to San Francisco?

    Flying via Seattle/Tacoma Intl (SEA) gives the shortest average 1-stop total travel time at 13h 17m, compared with 15h 52m via Paris Charles de Gaulle (CDG) and 16h 06m via London Heathrow (LHR).

  • What is the time difference between Helsinki and San Francisco?

    San Francisco is 10 hours behind Helsinki (Pacific Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

Your guide to booking Helsinki to San Francisco flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Saturday. On this route, Wednesday flights average $918, about $203 less than Saturday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 38% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Helsinki to San Francisco trip for February. Fares historically average $762 round-trip in that month - typically $385 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.

    • Grand Hyatt At Sfo

More options for your flight from Helsinki to San Francisco

Complete your trip to San Francisco with a hotel stay or car rental

Car rentals in San Francisco
Hotels in San Francisco
Vacations in San Francisco