$396+ Cheap flights from San Francisco (SFO) to Helsinki (HEL)
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.
SFO — HEL
May 24 — May 311
Round-trip
1 adult, Economy
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Cheapest flights from San Francisco to HelsinkiExplore the most affordable flight options available from San Francisco to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
Explore the most affordable flight options available from San Francisco to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:55 pm
SFO
- HEL
1 stop19h 45m
Turkish Airlines
Thu 5/1412:05 pm
HEL
- SFO
1 stop32h 45m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$648
This CheapOair deal was found by Cheapflights users on 4/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:55 pm
SFO
- HEL
1 stop19h 45m
Turkish Airlines
Thu 9/38:20 am
HEL
- SFO
1 stop18h 20m
Turkish Airlines
Deal found 4/19![Turkish Airlines logo]()
$660
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/46:45 pm
SFO
- HEL
1 stop30h 25m
Turkish Airlines
Wed 5/137:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$667
This KAYAK deal was found by Cheapflights users on 4/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:45 pm
SFO
- HEL
1 stop30h 25m
Turkish Airlines
Thu 5/148:20 am
HEL
- SFO
1 stop36h 30m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$698
This CheapOair deal was found by Cheapflights users on 4/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Wed 9/97:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$700
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:50 pm
SFO
- HEL
1 stop37h 15m
Turkish Airlines
Sat 11/2812:30 pm
HEL
- SFO
1 stop32h 35m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$726
This Sembo deal was found by Cheapflights users on 4/22. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Tue 5/1212:05 pm
HEL
- SFO
1 stop38h 35m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$730
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:45 pm
SFO
- HEL
1 stop19h 10m
Turkish Airlines
Thu 9/38:20 am
HEL
- SFO
1 stop18h 20m
Turkish Airlines
Deal found 4/23![Turkish Airlines logo]()
$738
This Trip.com deal was found by Cheapflights users on 4/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:45 pm
SFO
- HEL
1 stop37h 55m
Turkish Airlines
Sun 8/307:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/19![Turkish Airlines logo]()
$739
This Turkish Airlines deal was found by Cheapflights users on 4/19. 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.
Fri 8/2812:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Mon 9/712:05 pm
HEL
- SFO
1 stop38h 35m
Turkish Airlines
Deal found 4/19![Turkish Airlines logo]()
$740
This Cheapflightsfares deal was found by Cheapflights users on 4/20. 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.
Tue 10/612:55 pm
SFO
- HEL
1 stop25h 00m
Turkish Airlines
Sun 10/117:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$745
Best flights from San Francisco to HelsinkiDiscover carefully curated flight deals from San Francisco to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from San Francisco to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This Finnair deal was found by Cheapflights users on 4/23. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:30 am
SFO
- HEL
1 stop17h 15m
Multiple Airlines
Fri 10/25:15 pm
HEL
- SFO
1 stop17h 28m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$834
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:50 am
SFO
- HEL
2 stops29h 50m
United Airlines
Tue 9/297:05 am
HEL
- SFO
1 stop15h 35m
United Airlines
Deal found 4/23![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:00 pm
SFO
- HEL
1 stop18h 55m
United Airlines
Thu 9/36:35 am
HEL
- SFO
2 stops23h 39m
United Airlines
Deal found 4/23![United Airlines logo]()
$909
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/182:40 pm
SFO
- HEL
1 stop36h 30m
United Airlines
Thu 10/226:35 am
HEL
- SFO
1 stop16h 05m
United Airlines
Deal found 4/23![United Airlines logo]()
$947
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:10 am
SFO
- HEL
2 stops39h 55m
United Airlines
Mon 8/316:55 am
HEL
- SFO
1 stop15h 45m
United Airlines
Deal found 4/23![United Airlines logo]()
$974
This United Airlines deal was found by Cheapflights users on 4/21. 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 9/231:56 pm
SFO
- HEL
2 stops18h 59m
United Airlines
Sun 9/276:45 am
HEL
- SFO
2 stops37h 35m
United Airlines
Deal found 4/21![United Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 4/21. 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 9/221:56 pm
SFO
- HEL
2 stops18h 59m
United Airlines
Sun 9/276:45 am
HEL
- SFO
2 stops18h 36m
United Airlines
Deal found 4/21![United Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 4/21. 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 9/241:55 pm
SFO
- HEL
1 stop19h 00m
United Airlines
Sun 9/276:45 am
HEL
- SFO
2 stops18h 36m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/272:00 pm
SFO
- HEL
2 stops18h 55m
United Airlines
Mon 6/11:50 pm
HEL
- SFO
2 stops37h 28m
United Airlines
Deal found 4/19![United Airlines logo]()
$1,030
Last-minute flights from San Francisco to HelsinkiDiscover last-minute flight deals from San Francisco to Helsinki. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Helsinki. Data last updated April 24, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Sun 4/267:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/21![Turkish Airlines logo]()
$807
This Sembo deal was found by Cheapflights users on 4/22. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Tue 5/1212:05 pm
HEL
- SFO
1 stop38h 35m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$730
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/46:45 pm
SFO
- HEL
1 stop30h 25m
Turkish Airlines
Wed 5/137:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$667
This KAYAK deal was found by Cheapflights users on 4/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:45 pm
SFO
- HEL
1 stop30h 25m
Turkish Airlines
Thu 5/148:20 am
HEL
- SFO
1 stop36h 30m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$698
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:55 pm
SFO
- HEL
1 stop19h 45m
Turkish Airlines
Thu 5/1412:05 pm
HEL
- SFO
1 stop32h 45m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$648
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:45 pm
SFO
- HEL
1 stop30h 25m
Turkish Airlines
Wed 5/207:35 pm
HEL
- SFO
1 stop25h 15m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$907
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/104:45 pm
SFO
- HEL
1 stop12h 35m
Scandinavian Airlines
Wed 5/207:15 am
HEL
- SFO
2 stops17h 25m
Scandinavian Airlines
Deal found 4/22![Scandinavian Airlines logo]()
$934
This oojo deal was found by Cheapflights users on 4/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1112:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Wed 5/2012:05 pm
HEL
- SFO
1 stop38h 35m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$785
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1112:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Tue 5/1912:05 pm
HEL
- SFO
1 stop38h 35m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$847
This FlightHub deal was found by Cheapflights users on 4/22. 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.
Mon 5/1112:55 pm
SFO
- HEL
1 stop36h 15m
Turkish Airlines
Thu 5/217:35 pm
HEL
- SFO
1 stop31h 05m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$884
This oojo deal was found by Cheapflights users on 4/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:45 pm
SFO
- HEL
2 stops21h 05m
Scandinavian Airlines
Wed 5/209:15 pm
HEL
- SFO
2 stops27h 25m
Scandinavian Airlines
Deal found 4/22![Scandinavian Airlines logo]()
$929
One-way flights from San Francisco to HelsinkiSearch for one-way flight options from San Francisco to Helsinki. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from San Francisco to Helsinki. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 8/311:55 pm
SFO
- HEL
3 stops32h 25m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 4/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:12 am
SFO
- HEL
1 stop19h 13m
American Airlines
Deal found 4/24![American Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 9/19:02 pm
SFO
- HEL
3 stops37h 33m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$399
This Lufthansa deal was found by Cheapflights users on 4/23. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:05 pm
SFO
- HEL
1 stop18h 30m
Lufthansa
Deal found 4/23![Lufthansa logo]()
$401
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:05 am
SFO
- HEL
2 stops27h 50m
United Airlines
Deal found 4/23![United Airlines logo]()
$405
This FlightHub deal was found by Cheapflights users on 4/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3011:46 pm
SFO
- HEL
2 stops31h 14m
Air Canada
Deal found 4/24![Air Canada logo]()
$416
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:30 pm
SFO
- HEL
2 stops33h 25m
United Airlines
Deal found 4/23![United Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:05 pm
SFO
- HEL
1 stop35h 50m
United Airlines
Deal found 4/23![United Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Thu 8/277:00 am
SFO
- HEL
3 stops40h 20m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Sat 8/298:25 pm
SFO
- HEL
3 stops37h 15m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$438
This TravelUp deal was found by Cheapflights users on 4/23. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:05 pm
SFO
- HEL
1 stop18h 30m
Lufthansa
Deal found 4/23![Lufthansa logo]()
$448
Find flight deals from San Francisco to Helsinki
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Helsinki (HEL). 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 April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $648 (oojo) |
One-way from | $396 (Kiwi.com) |
Popular in | April |
Cheapest in | February |
Average price | $1,301 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Helsinki 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 April 24, 2026.
Use the filters below to find and compare flights from San Francisco to Helsinki that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Wed 9/23
7:30 am-10:45 am
1 stop17h 15m
Helsinki-Vantaa
Fri 10/2
5:15 pm-12:43 am
1 stop17h 28m
$834
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Wed 8/19
8:50 am-12:40 am
2 stops29h 50m
Helsinki-Vantaa
Tue 9/29
7:05 am-12:40 pm
1 stop15h 35m
$859
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Tue 8/25
2:00 pm-6:55 pm
1 stop18h 55m
Helsinki-Vantaa
Thu 9/3
6:35 am-8:14 pm
2 stops23h 39m
$909
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Sun 10/18
2:40 pm-1:10 pm
1 stop36h 30m
Helsinki-Vantaa
Thu 10/22
6:35 am-12:40 pm
1 stop16h 05m
$947
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Sat 8/22
11:10 am-1:05 pm
2 stops39h 55m
Helsinki-Vantaa
Mon 8/31
6:55 am-12:40 pm
1 stop15h 45m
$974
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Wed 9/23
1:56 pm-6:55 pm
2 stops18h 59m
Helsinki-Vantaa
Sun 9/27
6:45 am-10:20 am
2 stops37h 35m
$976
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Tue 9/22
1:56 pm-6:55 pm
2 stops18h 59m
Helsinki-Vantaa
Sun 9/27
6:45 am-3:21 pm
2 stops18h 36m
$976
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Thu 9/24
1:55 pm-6:55 pm
1 stop19h 00m
Helsinki-Vantaa
Sun 9/27
6:45 am-3:21 pm
2 stops18h 36m
$1,022
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Wed 5/27
2:00 pm-6:55 pm
2 stops18h 55m
Helsinki-Vantaa
Mon 6/1
1:50 pm-5:18 pm
2 stops37h 28m
$1,030
Cheapest one-way
San FranciscoHelsinki
SFO - HEL
SFOHEL
San Francisco
Sun 8/30
10:12 am-3:25 pm
1 stop19h 13m
$397
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Helsinki
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 San Francisco to Helsinki in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Helsinki flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Helsinki 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 San Francisco-Helsinki 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 San Francisco to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from San Francisco with our price prediction graph.
SFO-HEL
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 San Francisco to Helsinki
How far ahead should I book a flight from San Francisco to Helsinki?
The best time to book flights from San Francisco to Helsinki is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Francisco to Helsinki?
Currently, February is the cheapest month in which you can book a flight from San Francisco to Helsinki (average of $550). Flying from San Francisco to Helsinki in April is currently the most expensive (average of $1,301). 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 San Francisco to Helsinki?
Reviews of airlines servicing Helsinki
Get insights into the airlines that provide service to Helsinki. 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 Helsinki. Reviews last updated April 24, 2026.
Read through reviews of airlines operating flights from San Francisco to Helsinki, such as Finnair,United Airlines, andScandinavian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.7
Boarding
7.7
Entertainment
6.9
Crew
8.2
Food
6.7
Comfort
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Overall
7.7
Boarding
7.7
Entertainment
6.9
Crew
8.2
Food
6.7
Comfort
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Overall
7.7
Boarding
7.7
Entertainment
6.9
Crew
8.2
Food
6.7
Comfort
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Overall
7.7
Boarding
7.7
Entertainment
6.9
Crew
8.2
Food
6.7
Comfort
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Overall
7.7
Boarding
7.7
Entertainment
6.9
Crew
8.2
Food
6.7
Comfort
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Overall
7.7
Boarding
7.7
Entertainment
6.9
Crew
8.2
Food
6.7
Comfort
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Helsinki. 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 Helsinki?
Book flights to Helsinki if you plan to visit one of these locationsVantaa
Lahti
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Other flights to Helsinki
Explore flights to Helsinki departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
San Francisco and Helsinki flights
Browse other San Francisco and Helsinki flight options. Last updated on April 24, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 8 airlines flying from San Francisco to Helsinki
Discover the top 8 airlines that operate flights from San Francisco to Helsinki. 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 April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$483 | Average$969 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$496 | Average$593 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$552 | Average$1,050 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$566 | Average$1,083 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$566 | Average$1,013 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$615 | Average$924 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$622 | Average$652 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$685 | Average$912 | FlexibilityNo cancel fee | On-time70% |