$451+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SFO
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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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.Cheap flight deals from Helsinki to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Helsinki to San FranciscoExplore 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 July 28, 2026.
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 July 28, 2026.
This Travelis deal was found by Cheapflights users on 7/23. 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.
Sun 9/67:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Mon 9/216:45 pm
SFO
- HEL
1 stop37h 55m
Turkish Airlines
Deal found 7/23![Turkish Airlines logo]()
$805
This Ticket deal was found by Cheapflights users on 7/23. 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.
Sun 9/67:00 am
HEL
- SFO
2 stops19h 56m
Multiple Airlines
Mon 9/213:05 pm
SFO
- HEL
1 stop15h 35m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$945
This SmartFares deal was found by Cheapflights users on 7/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:00 pm
HEL
- SFO
1 stop32h 40m
Scandinavian Airlines
Mon 9/144:45 pm
SFO
- HEL
2 stops17h 50m
Scandinavian Airlines
Deal found 7/24![Scandinavian Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 7/24. 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.
Mon 9/77:00 am
HEL
- SFO
1 stop14h 45m
Delta
Mon 9/149:30 am
SFO
- HEL
2 stops22h 10m
Delta
Deal found 7/24![Delta logo]()
$958
This Flysmarter deal was found by Cheapflights users on 7/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:55 am
HEL
- SFO
1 stop15h 45m
Multiple Airlines
Mon 9/149:05 pm
SFO
- HEL
1 stop18h 30m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$960
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:55 pm
HEL
- SFO
1 stop31h 50m
Delta
Mon 9/143:05 pm
SFO
- HEL
1 stop15h 35m
Delta
Deal found 7/27![Delta logo]()
$963
Best flights from Helsinki to San FranciscoDiscover carefully curated flight deals from Helsinki to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Helsinki to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:55 pm
HEL
- SFO
1 stop31h 50m
Delta
Mon 9/143:05 pm
SFO
- HEL
1 stop15h 35m
Delta
Deal found 7/27![Delta logo]()
$963
This Delta deal was found by Cheapflights users on 7/23. 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.
Sun 9/67:00 am
HEL
- SFO
2 stops19h 56m
Delta
Mon 9/217:10 am
SFO
- HEL
2 stops19h 55m
Delta
Deal found 7/23![Delta logo]()
$965
This Delta deal was found by Cheapflights users on 7/26. 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.
Thu 8/137:00 am
HEL
- SFO
2 stops21h 13m
Delta
Tue 8/188:55 am
SFO
- HEL
2 stops21h 45m
Delta
Deal found 7/26![Delta logo]()
$968
This Delta deal was found by Cheapflights users on 7/25. 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.
Mon 8/171:55 pm
HEL
- SFO
2 stops20h 38m
Delta
Sat 9/57:00 am
SFO
- HEL
2 stops20h 05m
Delta
Deal found 7/25![Delta logo]()
$974
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
HEL
- SFO
2 stops21h 24m
Delta
Mon 8/173:05 pm
SFO
- HEL
1 stop15h 35m
Delta
Deal found 7/27![Delta logo]()
$991
Last-minute flights from Helsinki to San FranciscoDiscover last-minute flight deals from Helsinki to San Francisco. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Helsinki to San Francisco. Data last updated July 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
HEL
- SFO
2 stops21h 24m
Delta
Mon 8/173:05 pm
SFO
- HEL
1 stop15h 35m
Delta
Deal found 7/27![Delta logo]()
$991
This Delta deal was found by Cheapflights users on 7/25. 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.
Mon 8/171:55 pm
HEL
- SFO
2 stops20h 38m
Delta
Sat 9/57:00 am
SFO
- HEL
2 stops20h 05m
Delta
Deal found 7/25![Delta logo]()
$974
This Flysmarter deal was found by Cheapflights users on 7/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:55 am
HEL
- SFO
1 stop15h 45m
Multiple Airlines
Mon 9/149:05 pm
SFO
- HEL
1 stop18h 30m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$960
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:55 pm
HEL
- SFO
1 stop31h 50m
Delta
Mon 9/143:05 pm
SFO
- HEL
1 stop15h 35m
Delta
Deal found 7/27![Delta logo]()
$963
This Flysmarter deal was found by Cheapflights users on 7/26. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:55 am
HEL
- SFO
1 stop15h 45m
Lufthansa
Mon 9/142:40 pm
SFO
- HEL
2 stops18h 15m
Lufthansa
Deal found 7/26![Lufthansa logo]()
$998
One-way flights from Helsinki to San FranciscoSearch for one-way flight options from Helsinki to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
Search for one-way flight options from Helsinki to San Francisco. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:30 pm
HEL
- SFO
2 stops27h 10m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:50 pm
HEL
- SFO
3 stops48h 40m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:25 am
HEL
- SFO
3 stops38h 20m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:10 pm
HEL
- SFO
3 stops51h 35m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$473
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 11/308:25 pm
HEL
- SFO
3 stops52h 20m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:25 pm
HEL
- SFO
3 stops45h 22m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 12/19:30 pm
HEL
- SFO
2 stops28h 05m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:05 pm
HEL
- SFO
3 stops34h 50m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:50 pm
HEL
- SFO
3 stops51h 10m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Sun 10/411:25 pm
HEL
- SFO
2 stops26h 25m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Mon 9/2812:15 pm
HEL
- SFO
2 stops37h 40m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$511
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $805 (Travelis) |
One-way from | $439 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $1,133 |
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 July 28, 2026.
Use the filters below to find and compare flights from Helsinki to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Mon 8/31
1:55 pm-11:45 am
1 stop31h 50m
San Francisco
Mon 9/14
3:05 pm-4:40 pm
1 stop15h 35m
$963
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Sun 9/6
7:00 am-4:56 pm
2 stops19h 56m
San Francisco
Mon 9/21
7:10 am-1:05 pm
2 stops19h 55m
$965
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Thu 8/13
7:00 am-6:13 pm
2 stops21h 13m
San Francisco
Tue 8/18
8:55 am-4:40 pm
2 stops21h 45m
$968
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Mon 8/17
1:55 pm-12:33 am
2 stops20h 38m
San Francisco
Sat 9/5
7:00 am-1:05 pm
2 stops20h 05m
$974
Quickest round-trip
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Thu 8/13
7:00 am-6:24 pm
2 stops21h 24m
San Francisco
Mon 8/17
3:05 pm-4:40 pm
1 stop15h 35m
$991
Cheapest one-way
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Mon 9/7
6:50 pm-12:00 pm
3 stops51h 10m
$506
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Mon 9/28
12:15 pm-3:55 pm
2 stops37h 40m
$511
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Sat 9/12
9:05 pm-9:55 pm
3 stops58h 50m
$566
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Thu 9/24
9:05 pm-3:50 pm
3 stops28h 45m
$589
HelsinkiSan Francisco
HEL - SFO
HELSFO
Helsinki-Vantaa
Fri 10/16
6:45 am-3:50 pm
2 stops19h 05m
$651
Showing 1-10 of 15 resultsSorted by cheapest first
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 July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Helsinki-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helsinki-San Francisco flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
HEL-SFO
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
Prices
Delays
How far ahead should I book a flight from Helsinki to San Francisco?
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 66 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, February is the cheapest month in which you can book a flight from Helsinki to San Francisco (average of $762). Flying from Helsinki to San Francisco in July is currently the most expensive (average of $1,133). 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.
How much does it cost to fly round-trip from Helsinki to San Francisco?
Airfare is below average for this route at the moment.
Helsinki to San Francisco flights typically cost between $948 and $1,137 in September.The cheapest round-trip price found within the last 5 days was $805 on Turkish Airlines (Sep 6-Sep 21).
How often are flights from Helsinki to San Francisco delayed?
About 100% of weekly flights between Helsinki and San Francisco have experienced delays in the past year, with the average delay time being 101 minutes.
What is the most punctual flight time for Helsinki to San Francisco flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
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 July 28, 2026.
Get a feel of what it's like to fly with Scandinavian 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.
Entertainment
6.8
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.0
Reviews
1 / 20
10.0
ExcellentRobert,Jul 2026
CPH - SFO
Entertainment
6.8
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.0
Reviews
1 / 20
10.0
ExcellentRobert,Jul 2026
CPH - SFO
Entertainment
6.8
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.0
Reviews
1 / 20
10.0
ExcellentRobert,Jul 2026
CPH - SFO
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.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Fairfield
Roseville
Burlingame
Rancho Cordova
San Bruno
Cupertino
Emeryville
Newark
Watsonville
Hayward
Redwood City
San Carlos
San Ramon
Turlock
Vallejo
San Lorenzo
Davis
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.
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Helsinki and San Francisco flights
Browse other Helsinki and San Francisco flight options. Last updated on July 28, 2026.
Other flights from Helsinki
Browse through other flights departing from Helsinki. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Top 2 airlines flying from Helsinki to San Francisco
Discover the top 2 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$682 | Average$829 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$868 | Average$1,110 | FlexibilityNo cancel fee | On-time76% |