$459+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SFO
Oct 8 — Oct 151
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 September 8, 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 September 8, 2026.
This Travelis deal was found by Cheapflights users on 9/4. 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.
Tue 10/136:25 pm -
1 stop28h 15m
Tue 10/207:25 pm -
1 stop18h 55m
Deal found 9/4![Lufthansa logo]()
$855
This Ticket deal was found by Cheapflights users on 9/8. 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 9/247:00 am -
2 stops18h 54m
Mon 9/282:20 pm -
2 stops17h 20m
Deal found 9/8![KLM logo]()
$856
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 11/146:40 am -
2 stops19h 34m
Sun 11/2910:38 am -
2 stops20h 02m
Deal found 9/7![Delta logo]()
$859
This FlightHub deal was found by Cheapflights users on 9/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:05 pm -
1 stop31h 25m
Sat 1/166:35 pm -
1 stop37h 35m
Deal found 9/5![Turkish Airlines logo]()
$860
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
1 stop18h 30m
Wed 11/111:40 pm -
1 stop19h 05m
Deal found 9/4![United Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 12/212:35 pm -
1 stop17h 00m
Wed 1/131:40 pm -
1 stop19h 05m
Deal found 9/5![United Airlines logo]()
$864
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 12/212:35 pm -
1 stop17h 00m
Tue 1/1210:23 am -
2 stops22h 22m
Deal found 9/5![United Airlines logo]()
$865
This Air Canada deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
2 stops38h 20m
Wed 11/118:25 am -
2 stops24h 20m
Deal found 9/4![Multiple Airlines logo]()
$866
This Ticket deal was found by Cheapflights users on 9/7. 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.
Tue 10/206:00 am -
2 stops25h 48m
Sun 10/2510:40 pm -
1 stop28h 10m
Deal found 9/7![Multiple Airlines logo]()
$871
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 September 8, 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 September 8, 2026.
This Ticket deal was found by Cheapflights users on 9/8. 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 9/247:00 am -
2 stops18h 54m
Mon 9/282:20 pm -
2 stops17h 20m
Deal found 9/8![KLM logo]()
$856
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
1 stop18h 30m
Wed 11/111:40 pm -
1 stop19h 05m
Deal found 9/4![United Airlines logo]()
$862
This Lufthansa deal was found by Cheapflights users on 9/7. 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.
Fri 11/137:05 am -
1 stop15h 30m
Sat 11/289:40 pm -
1 stop28h 10m
Deal found 9/7![Lufthansa logo]()
$876
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/512:25 pm -
1 stop39h 05m
Mon 11/96:35 pm -
1 stop37h 35m
Deal found 9/7![Turkish Airlines logo]()
$879
This Delta deal was found by Cheapflights users on 9/7. 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 11/156:40 am -
2 stops18h 55m
Sun 11/299:55 am -
2 stops21h 30m
Deal found 9/7![Delta logo]()
$888
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Mon 10/194:25 pm -
3 stops32h 15m
Mon 10/265:45 pm -
3 stops21h 05m
Deal found 9/3![Scandinavian Airlines logo]()
$905
This KLM deal was found by Cheapflights users on 9/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:40 am -
1 stop15h 05m
Sat 11/281:50 pm -
1 stop17h 35m
Deal found 9/7![KLM logo]()
$859
This United Airlines deal was found by Cheapflights users on 9/5. 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 12/312:35 pm -
1 stop17h 00m
Thu 1/145:00 am -
2 stops27h 45m
Deal found 9/5![United Airlines logo]()
$865
This Delta deal was found by Cheapflights users on 9/7. 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 9/247:00 am -
2 stops26h 53m
Wed 10/77:00 am -
2 stops20h 05m
Deal found 9/7![Delta logo]()
$888
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 12/812:35 pm -
1 stop17h 00m
Wed 1/1310:50 pm -
2 stops27h 00m
Deal found 9/5![United Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 12/812:35 pm -
1 stop17h 00m
Mon 1/187:00 am -
2 stops18h 50m
Deal found 9/5![United Airlines logo]()
$865
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 12/812:35 pm -
2 stops41h 12m
Fri 1/1510:50 pm -
2 stops27h 00m
Deal found 9/5![United Airlines logo]()
$881
Last-minute flights from Helsinki to San FranciscoDiscover last-minute flight deals from Helsinki to San Francisco. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Helsinki to San Francisco. Data last updated September 8, 2026 and is based on user searches.
This Ticket deal was found by Cheapflights users on 9/8. 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 9/247:00 am -
2 stops18h 54m
Mon 9/282:20 pm -
2 stops17h 20m
Deal found 9/8![KLM logo]()
$856
This Travelis deal was found by Cheapflights users on 9/4. 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.
Tue 10/136:25 pm -
1 stop28h 15m
Tue 10/207:25 pm -
1 stop18h 55m
Deal found 9/4![Lufthansa logo]()
$855
This Delta deal was found by Cheapflights users on 9/7. 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 10/137:00 am -
2 stops20h 05m
Tue 10/208:55 am -
2 stops21h 45m
Deal found 9/7![Delta logo]()
$859
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
1 stop18h 30m
Wed 11/111:40 pm -
1 stop19h 05m
Deal found 9/4![United Airlines logo]()
$862
This Delta deal was found by Cheapflights users on 9/7. 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 10/197:00 am -
1 stop14h 45m
Wed 11/1110:38 am -
2 stops20h 02m
Deal found 9/7![Delta logo]()
$865
This Air Canada deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
2 stops38h 20m
Wed 11/118:25 am -
2 stops24h 20m
Deal found 9/4![Multiple Airlines logo]()
$866
This Ticket deal was found by Cheapflights users on 9/7. 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.
Tue 10/206:00 am -
2 stops25h 48m
Sun 10/2510:40 pm -
1 stop28h 10m
Deal found 9/7![Multiple Airlines logo]()
$871
This Gotogate deal was found by Cheapflights users on 9/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:15 am -
2 stops17h 25m
Tue 10/275:45 pm -
1 stop22h 50m
Deal found 9/5![Scandinavian Airlines logo]()
$874
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 September 8, 2026.
Search for one-way flight options from Helsinki to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 12/129:10 pm -
3 stops51h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 12/1111:25 am -
3 stops37h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/149:10 pm -
3 stops51h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/238:25 pm -
3 stops52h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$477
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/219:10 pm -
3 stops51h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Fri 11/207:20 am -
3 stops41h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$486
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/1910:05 pm -
3 stops50h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 11/2210:00 am -
3 stops38h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Wed 10/2812:45 pm -
3 stops52h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$495
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 11/1510:00 am -
3 stops38h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$496
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Fri 11/1311:25 am -
3 stops37h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$500
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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $855 (Travelis) |
One-way from | $459 (Kiwi.com) |
Popular in | August |
Cheapest in | February |
Average price | $948 |
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 7,457,451 searches. Data last updated September 8, 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 Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Wed 10/28
9:45 pm-5:30 pm
2 stops52h 45m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$503
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Wed 12/16
7:40 am-3:50 pm
2 stops42h 10m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$505
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Sun 11/15
9:05 pm-2:55 pm
2 stops27h 50m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$512
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Sat 2/20
7:45 pm-2:45 pm
3 stops53h 00m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$537
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Sun 12/20
11:00 am-2:45 pm
2 stops37h 45m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$617
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Mon 11/16
7:35 pm-3:35 pm
2 stops30h 00m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$618
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Thu 9/17
8:30 pm-9:55 pm
3 stops35h 25m
San Francisco
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$653
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Thu 9/24
7:00 am-3:54 pm
2 stops18h 54m
San Francisco
Mon 9/28
2:20 pm-5:40 pm
2 stops17h 20m
$856
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Sun 11/15
6:40 am-11:45 am
1 stop15h 05m
San Francisco
Sat 11/28
1:50 pm-5:25 pm
1 stop17h 35m
$859
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Mon 10/19
6:00 am-2:30 pm
1 stop18h 30m
San Francisco
Wed 11/11
1:40 pm-6:45 pm
1 stop19h 05m
$862
Showing 1-10 of 23 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 September.
| 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
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 50 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 August is currently the most expensive (average of $1,147). 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 typical for this route at the moment.
Helsinki to San Francisco flights typically cost between $851 and $1,019 in October.The cheapest round-trip price found within the last 5 days was $855 on Lufthansa (Oct 13-Oct 20).
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 September 8, 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.
Comfort
7.4
Food
6.8
Boarding
7.7
Crew
8.1
Entertainment
6.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentRobert,Jul 2026
CPH - SFO
Comfort
7.4
Food
6.8
Boarding
7.7
Crew
8.1
Entertainment
6.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentRobert,Jul 2026
CPH - SFO
Comfort
7.4
Food
6.8
Boarding
7.7
Crew
8.1
Entertainment
6.8
Overall
7.4
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.
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Top 2 airlines flying from Helsinki to San Francisco
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$703 | Average$973 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$894 | Average$1,119 | FlexibilityNo cancel fee | On-time76% |