HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$677+ Cheap flights from Helsinki (HEL) to San Francisco (SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SFO
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helsinki to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Helsinki-Vantaa to San Francisco are usually found in February or March, booked 85 days in advance, depart on a Wednesday or Friday and return on a Sunday

Cheap flight deals from Helsinki to San Francisco

Cheapest flights from Helsinki to San Francisco
Explore the most affordable flight options available from Helsinki to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/237:05 amHEL - SFO
2 stops22h 30mUnited Airlines
mar. 1/69:40 pmSFO - HEL
1 stop35h 10mUnited Airlines
Deal found 12/11$1,010
This Lufthansa deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/237:05 amHEL - SFO
1 stop15h 35mLufthansa
mar. 1/69:40 pmSFO - HEL
1 stop35h 10mLufthansa
Deal found 12/11$1,011
This Mytrip deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/235:45 pmHEL - SFO
3 stops30h 45mMultiple Airlines
mar. 1/61:20 pmSFO - HEL
3 stops35h 20mMultiple Airlines
Deal found 12/11$1,375

Find flight deals from Helsinki to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Helsinki (HEL) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$677
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$891
Provider with most accurate pricing for Helsinki-Vantaa-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helsinki-Vantaa-San Francisco flights.
Search Deals
From Helsinki-Vantaa to San Francisco
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
Use the filters below to find and compare flights from Helsinki to San Francisco that are best for you.

Fly from

Helsinki

Fly to

San Francisco

Route

Depart

Return

Price

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/23

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

vie. 2/6

4:40 pm-2:55 pm

2 stops36h 15m

$690

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

dom. 1/25

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

dom. 2/1

4:40 pm-11:45 pm

2 stops21h 05m

$691

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/16

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

vie. 1/30

4:40 pm-11:55 pm

2 stops45h 15m

$695

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/16

9:20 pm-2:35 pm

3 stops27h 15m

San Francisco

vie. 1/30

4:40 pm-11:15 pm

2 stops20h 35m

$716

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/30

4:05 pm-2:35 pm

1 stop32h 30m

San Francisco

lun. 2/9

4:40 pm-10:40 am

1 stop32h 00m

$717

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

jue. 3/5

6:15 am-2:35 pm

1 stop18h 20m

San Francisco

lun. 3/9

5:40 pm-10:40 am

1 stop32h 00m

$746

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/2

11:20 pm-2:35 pm

2 stops49h 15m

$1,776

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/2

4:05 pm-2:35 pm

1 stop32h 30m

$1,959

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/2

7:50 am-11:21 pm

2 stops25h 31m

$3,074

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

vie. 1/2

6:55 am-8:10 pm

1 stop23h 15m

$6,692

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Helsinki to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helsinki to San Francisco in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helsinki-San Francisco flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Helsinki-San Francisco flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Helsinki-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helsinki-San Francisco flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helsinki-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helsinki to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Helsinki with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Helsinki to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Helsinki to San Francisco. Price data was last updated on December 5, 2025.

The price you pay for your flight from Helsinki to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Helsinki to San Francisco?

Currently, April is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $551). Flying from Helsinki to San Francisco in July is currently the most expensive (average of $829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HEL to SFO?

Find hourly flight availability from Helsinki to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Helsinki to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated diciembre 12, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, American Airlines, and Lufthansa from Helsinki to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,605 reviews

Boarding

7.6

Food

6.7

Entertainment

6.7

Crew

8.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,605 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Boarding

7.6

Food

6.7

Entertainment

6.7

Crew

8.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
American Airlines
7.2
Good
11,049 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Boarding

7.6

Food

6.7

Entertainment

6.7

Crew

8.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Lufthansa
6.8
Okay
7,626 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews

Boarding

7.6

Food

6.7

Entertainment

6.7

Crew

8.0

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Helsinki to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    A quick flight from Helsinki to San Francisco can take about 32h 30m. Scandinavian Airlines provides one of the quickest options available for as low as $690. There are 5417 mi between Helsinki and San Francisco.

  • What are the cheapest airlines flying from Helsinki to San Francisco round-trip?

    According to our current data, Scandinavian Airlines ($683), Lufthansa ($811), and American Airlines ($861) offers the cheapest pricing from Helsinki to San Francisco. You may be able to fly from Helsinki to San Francisco for 21% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Helsinki to San Francisco one-way?

    The cheapest airlines for a one-way flight from Helsinki to San Francisco are Scandinavian Airlines ($494), Lufthansa ($645), and Finnair ($659).

  • Can I find deals for flights from Helsinki to San Francisco that include hotel bookings?

    Yes. In addition to deals on Helsinki to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helsinki to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helsinki to San Francisco.

  • Can I find deals for business class flights from Helsinki to San Francisco?

    Yes. Cheapflights offers flight deals from Helsinki to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helsinki to San Francisco?

    Currently, April is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $551). Flying from Helsinki to San Francisco in July is currently the most expensive (average of $829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
San Bruno
Redwood City
Daly City
Vallejo
Hollister
Foster City
Union City
Davis
San Ramon
Burlingame
Milpitas

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Helsinki to San Francisco

Discover the top 3 airlines that operate flights from Helsinki to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$683Average$829FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$811Average$945FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$861Average$1,123FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.