HEL - SFO

$453 Find Cheap Flights from Helsinki to San Francisco - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$974
Typical prices: $816-$1,140
American Airlines
Fri 9/14Mon 9/24
HEL - SFO • 1 stop
Cheapest one-way
$432
Typical prices: $827-$1,280
Multiple Airlines
Mon 10/22
HEL - SFO • 2 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
19 weeks
in advance
Our data shows that travelers who book at least 19 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 22% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Istanbul (IST)
Cheapest • Avg $850 (round-trip)
Seattle/Tacoma Intl (SEA)
Shortest trip • 13h 17m (one-way)
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Insights
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We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helsinki to San Francisco

Mon, Sep 14 - Thu, Sep 24
American Airlines Logo
5:15 pm - 12:59 amHEL  Helsinki-Vantaa-SFO San Francisco
17h 44m1 stop New York John F Kennedy Intl
American Airlines Logo
1:27 pm - 3:25 pmSFO  San Francisco-HEL Helsinki-Vantaa
15h 58m1 stop Los Angeles
$974American Airlines
Thu, Dec 24 - Sun, Jan 3
Multiple Airlines Logo
7:20 am - 12:35 pmHEL  Helsinki-Vantaa-SFO San Francisco
39h 15m2 stops Stockholm Arlanda Frankfurt am Main
Multiple Airlines Logo
9:40 pm - 10:25 pmSFO  San Francisco-HEL Helsinki-Vantaa
38h 45m2 stops Munich Franz Josef Strauss Stockholm Arlanda
$982Multiple Airlines
Sat, Sep 26 - Mon, Oct 5
Scandinavian Airlines Logo
6:10 am - 2:40 pmHEL  Helsinki-Vantaa-SFO San Francisco
18h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 8:25 pmSFO  San Francisco-HEL Helsinki-Vantaa
17h 40m1 stop Kastrup Copenhagen
$984Scandinavian Airlines
Mon, Sep 14 - Thu, Sep 24
Multiple Airlines Logo
5:40 pm - 12:50 pmHEL  Helsinki-Vantaa-SFO San Francisco
29h 10m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
2:15 pm - 5:40 pmSFO  San Francisco-HEL Helsinki-Vantaa
17h 25m2 stops Seattle/Tacoma Intl Amsterdam Schiphol
$994Multiple Airlines
Thu, Oct 8 - Wed, Oct 21
American Airlines Logo
4:05 pm - 9:39 pmHEL  Helsinki-Vantaa-SFO San Francisco
15h 34m1 stop Los Angeles
American Airlines Logo
9:00 am - 10:45 amSFO  San Francisco-HEL Helsinki-Vantaa
15h 45m1 stop Dallas/Fort Worth
$997American Airlines
Fri, Sep 11 - Fri, Sep 18
Lufthansa Logo
6:55 am - 3:20 pmHEL  Helsinki-Vantaa-SFO San Francisco
18h 25m1 stop Frankfurt am Main
Lufthansa Logo
9:05 pm - 12:05 pmSFO  San Francisco-HEL Helsinki-Vantaa
29h 00m1 stop Munich Franz Josef Strauss
$1,091Lufthansa
Sun, Sep 13 - Sun, Sep 20
Lufthansa Logo
7:40 pm - 11:50 amHEL  Helsinki-Vantaa-SFO San Francisco
26h 10m2 stops Munich Franz Josef Strauss Paris Charles de Gaulle
Lufthansa Logo
9:05 pm - 1:35 amSFO  San Francisco-HEL Helsinki-Vantaa
18h 30m1 stop Munich Franz Josef Strauss
$1,137Lufthansa
Sun, Sep 13 - Sun, Sep 20
Lufthansa Logo
7:40 pm - 11:50 amHEL  Helsinki-Vantaa-SFO San Francisco
26h 10m2 stops Munich Franz Josef Strauss Paris Charles de Gaulle
Lufthansa Logo
9:05 pm - 12:30 amSFO  San Francisco-HEL Helsinki-Vantaa
17h 25m2 stops Munich Franz Josef Strauss Frankfurt am Main
$1,169Lufthansa
Wed, Dec 23 - Sat, Jan 2
Scandinavian Airlines Logo
11:00 am - 2:50 pmHEL  Helsinki-Vantaa-SFO San Francisco
37h 50m2 stops Stockholm Arlanda Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 4:05 pmSFO  San Francisco-HEL Helsinki-Vantaa
37h 20m2 stops Kastrup Copenhagen Stockholm Arlanda
$1,396Scandinavian Airlines
Wed, Sep 2 - Sun, Sep 6
Scandinavian Airlines Logo
9:05 pm - 2:40 pmHEL  Helsinki-Vantaa-SFO San Francisco
27h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
4:45 pm - 3:20 pmSFO  San Francisco-HEL Helsinki-Vantaa
12h 35m1 stop Kastrup Copenhagen
$1,529Scandinavian Airlines
Booking Insights

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 from Helsinki to San Francisco with more confidence.

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

Round-trip flights from Helsinki to San Francisco start at $974. Prices are typical for this route right now, with typical round-trip fares ranging from $816 to $1,140. The lowest price found in the past 5 days was $974 on American Airlines.

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

Monday is the cheapest day of the week to fly from Helsinki to San Francisco, it is 7% cheaper than the average day. Tuesday is the most expensive day with flight prices 8% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is 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 ($1,137) and July ($1,133) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 49% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Helsinki to San Francisco the cheapest?

Flights from Helsinki to San Francisco are cheapest 19 weeks before departure. Booking in this window typically costs about 37% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Helsinki to San Francisco flights

Low season

February

Cheapest flight

$432
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 13% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

    Only Economy Class is available on flights from Helsinki to San Francisco.

  • 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) - 20% of one-stop connections
    • Amsterdam Schiphol (AMS) - 18% of one-stop connections
    • Istanbul (IST) - 8% of one-stop connections

    Kastrup Copenhagen (CPH) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 15% on the Helsinki to San Francisco route. Monday is the cheapest departure day at $909 round-trip on average, while Tuesday is the most expensive at $1,058, a difference of $149. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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.

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

    A nonstop flight from Helsinki to San Francisco takes 0h 00m, covering 5,417 miles.

  • What are the earliest and latest flights from Helsinki to San Francisco?

    These are the earliest and latest flight times available from Helsinki to San Francisco:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 26% above the route average of $972. Book 19 weeks before departure for the lowest fares.

  • 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.

  • 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 $974 to $4,710. That means the highest observed fare was about 5x 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 $746, which is 26% below the typical average for this route.

  • 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 16h 05m via Paris Charles de Gaulle (CDG) and 16h 08m via Kastrup Copenhagen (CPH).

  • 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 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:
    · Thrifty
    · Europcar
    · Dollar
    · Hertz
    · Fox

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

    Round-trip flights from Helsinki to San Francisco range from $816 to $1,140, with an average of $972 over the past 12 months. Anything below $816 counts as a good deal.

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 can be flexible, aim for a Monday departure instead of Tuesday. On this route, Monday flights average $909 - about $149 less than Tuesday (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 37% 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 $375 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

Everything you need to know for your flight from Helsinki to San Francisco

Information on your arrival and departure airports

Helsinki (HEL)
San Francisco (SFO)