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$364+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Helsinki-Vantaa to San Francisco are usually found in February or November, 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 June 12, 2025.

Round-trip from

$795
(Scandinavian Airlines)

One-way from

$364
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$896
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. 9% potential increase in price ($88 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 June 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 June 12, 2025.

This Lufthansa deal was found by Cheapflights users on 6/10. 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.
Thu 9/46:10 amHEL - SFO
2 stops24h 47mLufthansa
Thu 11/278:25 amSFO - HEL
2 stops22h 05mLufthansa
Deal found 6/10$795
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:35 amHEL - SFO
2 stops26h 38mScandinavian Airlines
Mon 9/297:40 pmSFO - HEL
1 stop14h 35mScandinavian Airlines
Deal found 6/11$796
This Turkish Airlines deal was found by Cheapflights users on 6/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:35 pmHEL - SFO
1 stop38h 05mTurkish Airlines
Mon 11/246:50 pmSFO - HEL
1 stop37h 15mTurkish Airlines
Deal found 6/10$797
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 9/37:00 amHEL - SFO
2 stops22h 10mDelta
Tue 11/258:55 amSFO - HEL
2 stops22h 30mDelta
Deal found 6/10$798
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:00 amHEL - SFO
2 stops38h 28mAir Canada
Sat 11/296:05 pmSFO - HEL
2 stops38h 35mAir Canada
Deal found 6/10$799
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 7/246:10 amHEL - SFO
1 stop19h 45mUnited Airlines
Wed 8/62:00 pmSFO - HEL
1 stop35h 55mUnited Airlines
Deal found 6/11$814
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/144:50 pmHEL - SFO
1 stop16h 07mAmerican Airlines
Tue 9/95:45 amSFO - HEL
1 stop19h 00mAmerican Airlines
Deal found 6/11$826
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 9/49:05 pmHEL - SFO
2 stops29h 25mMultiple Airlines
Wed 11/267:30 amSFO - HEL
3 stops21h 55mMultiple Airlines
Deal found 6/10$862
This Travelocity deal was found by Cheapflights users on 6/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/78:00 amHEL - SFO
2 stops25h 17mBritish Airways
Wed 8/206:28 amSFO - HEL
2 stops21h 52mBritish Airways
Deal found 6/12$918
This Icelandair deal was found by Cheapflights users on 6/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/13:00 pmHEL - SFO
2 stops28h 44mIcelandair
Thu 11/279:10 amSFO - HEL
2 stops17h 50mIcelandair
Deal found 6/10$919
This Flightsearch deal was found by Cheapflights users on 6/12. 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 Flightsearch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/296:25 pmHEL - SFO
1 stop27h 20mKLM
Sat 7/1212:30 pmSFO - HEL
2 stops19h 10mKLM
Deal found 6/12$1,018
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/412:35 pmHEL - SFO
1 stop19h 12mIberia
Tue 9/28:10 pmSFO - HEL
1 stop33h 00mIberia
Deal found 6/10$1,051

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 June 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

Thu 9/4

6:10 am-8:57 pm

2 stops24h 47m

San Francisco

Thu 11/27

8:25 am-4:30 pm

2 stops22h 05m

$795

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 9/22

6:35 am-11:13 pm

2 stops26h 38m

San Francisco

Mon 9/29

7:40 pm-8:15 pm

1 stop14h 35m

$796

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Wed 9/3

12:35 pm-4:40 pm

1 stop38h 05m

San Francisco

Mon 11/24

6:50 pm-6:05 pm

1 stop37h 15m

$797

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Wed 9/3

7:00 am-7:10 pm

2 stops22h 10m

San Francisco

Tue 11/25

8:55 am-5:25 pm

2 stops22h 30m

$798

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Sun 9/7

6:00 am-10:28 am

2 stops38h 28m

San Francisco

Sat 11/29

6:05 pm-6:40 pm

2 stops38h 35m

$799

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 7/24

6:10 am-3:55 pm

1 stop19h 45m

San Francisco

Wed 8/6

2:00 pm-11:55 am

1 stop35h 55m

$814

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 8/14

4:50 pm-10:57 pm

1 stop16h 07m

San Francisco

Tue 9/9

5:45 am-10:45 am

1 stop19h 00m

$826

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 9/4

9:05 pm-4:30 pm

2 stops29h 25m

San Francisco

Wed 11/26

7:30 am-3:25 pm

3 stops21h 55m

$862

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Thu 8/7

8:00 am-11:17 pm

2 stops25h 17m

San Francisco

Wed 8/20

6:28 am-2:20 pm

2 stops21h 52m

$918

HelsinkiSan Francisco

HEL - SFO

HELSFO

Helsinki-Vantaa

Mon 9/1

3:00 pm-9:44 am

2 stops28h 44m

San Francisco

Thu 11/27

9:10 am-1:00 pm

2 stops17h 50m

$919

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 20 results
1
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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 June 9, 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, January is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $276). Flying from Helsinki to San Francisco in June is currently the most expensive (average of $364). 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 June 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 12% on your trip compared to booking a flight at noon.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Helsinki to San Francisco to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,848 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    According to our current data, Scandinavian Airlines ($795), Turkish Airlines ($797), and Delta ($798) offers the cheapest pricing from Helsinki to San Francisco. You may be able to fly from Helsinki to San Francisco for 6% 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 KLM ($791), Delta ($799), and Iberia ($832).

  • 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, January is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $276). Flying from Helsinki to San Francisco in June is currently the most expensive (average of $364). 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 Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Helsinki to San Francisco

Discover the top 4 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$683Average$902FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$715Average$855FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$768Average$939FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$867Average$1,048FlexibilityNo cancel feeOn-time71%

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