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$470+ Cheap flights from Helsinki (HEL) to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SFO
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Helsinki-Vantaa to San Francisco are usually found in February or March, booked 77 days in advance, depart on a Wednesday or Friday and return on a Sunday

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$765
(Kiwi.com)

One-way from

$470
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$823
Provider with most accurate pricing for Helsinki-Vantaa-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Helsinki-Vantaa-San Francisco flights.
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From Helsinki-Vantaa to San Francisco
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One-way flight from Helsinki-Vantaa to San Francisco
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Highest demand for flights based on searches. 10% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:30 pmHEL - SFO
1 stop38h 15mTurkish Airlines
Thu 12/46:50 pmSFO - HEL
1 stop37h 15mTurkish Airlines
Deal found 10/28$765
This Flightnetwork deal was found by Cheapflights users on 10/26. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:30 pmHEL - SFO
2 stops30h 05mScandinavian Airlines
Mon 12/294:40 pmSFO - HEL
1 stop12h 45mScandinavian Airlines
Deal found 10/26$770
This Travelis deal was found by Cheapflights users on 10/28. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:55 amHEL - SFO
1 stop15h 45mLufthansa
Wed 12/32:40 pmSFO - HEL
1 stop24h 40mLufthansa
Deal found 10/28$785
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:00 amHEL - SFO
1 stop14h 50mDelta
Tue 12/26:00 amSFO - HEL
2 stops24h 25mDelta
Deal found 10/26$789
This Ticket deal was found by Cheapflights users on 10/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:55 amHEL - SFO
2 stops24h 39mAir Canada
Wed 12/38:25 amSFO - HEL
2 stops22h 05mAir Canada
Deal found 10/28$814
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:55 amHEL - SFO
1 stop15h 45mMultiple Airlines
Wed 12/38:25 amSFO - HEL
2 stops22h 05mMultiple Airlines
Deal found 10/28$820
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amHEL - SFO
1 stop14h 50mDelta
Thu 12/49:59 amSFO - HEL
2 stops20h 26mDelta
Deal found 10/28$824
This Scandinavian Airlines deal was found by Cheapflights users on 10/27. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amHEL - SFO
2 stops41h 35mScandinavian Airlines
Thu 12/44:40 pmSFO - HEL
2 stops31h 50mScandinavian Airlines
Deal found 10/27$828

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 October 28, 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

Thu 11/20

12:30 pm-4:45 pm

1 stop38h 15m

San Francisco

Thu 12/4

6:50 pm-6:05 pm

1 stop37h 15m

$765

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

6:55 am-12:40 pm

1 stop15h 45m

San Francisco

Wed 12/3

2:40 pm-1:20 am

1 stop24h 40m

$785

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Tue 11/25

7:00 am-11:50 am

1 stop14h 50m

San Francisco

Tue 12/2

6:00 am-4:25 pm

2 stops24h 25m

$789

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Tue 11/25

6:20 pm-11:50 am

1 stop27h 30m

San Francisco

Tue 12/2

3:40 pm-10:35 pm

1 stop20h 55m

$789

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

6:55 am-9:34 pm

2 stops24h 39m

San Francisco

Wed 12/3

8:25 am-4:30 pm

2 stops22h 05m

$814

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

6:55 am-12:40 pm

1 stop15h 45m

San Francisco

Wed 12/3

8:25 am-4:30 pm

2 stops22h 05m

$820

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sat 12/13

6:30 pm-2:35 pm

2 stops30h 05m

San Francisco

Mon 12/29

4:40 pm-8:20 pm

2 stops17h 40m

$822

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

7:00 am-11:50 am

1 stop14h 50m

San Francisco

Thu 12/4

10:30 am-4:25 pm

2 stops19h 55m

$824

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 11/20

7:00 am-2:35 pm

2 stops41h 35m

San Francisco

Thu 12/4

4:40 pm-10:30 am

2 stops31h 50m

$828

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sat 12/13

6:30 am-5:56 pm

2 stops21h 26m

San Francisco

Mon 12/29

5:45 am-4:25 pm

2 stops24h 40m

$833

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 17 results
1
2

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 October.
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 October 24, 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 77 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, December is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $590). 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 October 28, 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.

How much does it cost to fly round-trip from Helsinki to San Francisco?

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 October 28, 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
1,543 reviews

Food

6.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Boarding

7.6

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
1,543 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Food

6.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Boarding

7.6

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
11,033 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Food

6.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Boarding

7.6

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
7,533 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Food

6.6

Crew

8.0

Entertainment

6.6

Comfort

7.3

Boarding

7.6

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 14h 50m. Turkish Airlines provides one of the quickest options available for as low as $789. There are 5417 mi between Helsinki and San Francisco. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Scandinavian Airlines ($683), Lufthansa ($715), 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.

  • 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, December is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $590). 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
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Watsonville
Sunnyvale
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Antioch
Manteca
Vallejo
Hollister
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Lodi

Browse thousands of different options on Cheapflights for your next trip

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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$683Average$957FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$715Average$892FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$861Average$1,123FlexibilityNo cancel feeOn-time71%

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