Cheap flights from Helsinki to San Francisco from $478
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helsinki to San Francisco departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Mon 11/9
12:15 pm-4:30 pm
1 stop38h 15m
San Francisco
Mon 11/23
6:35 pm-6:10 pm
1 stop37h 35m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Thu 11/5
12:15 pm-5:30 pm
1 stop39h 15m
San Francisco
Mon 11/9
6:35 pm-6:10 pm
1 stop37h 35m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Mon 11/9
7:05 pm-4:30 pm
1 stop31h 25m
San Francisco
Mon 11/23
6:35 pm-11:20 am
1 stop30h 45m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Sun 4/4
12:05 pm-4:55 pm
1 stop38h 50m
San Francisco
Tue 4/20
6:50 pm-11:55 pm
1 stop19h 05m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Mon 11/9
12:15 pm-4:30 pm
1 stop38h 15m
San Francisco
Mon 11/23
6:35 pm-6:10 pm
1 stop37h 35m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Wed 11/25
6:15 am-2:50 pm
1 stop18h 35m
San Francisco
Sun 11/29
4:45 pm-1:35 am
1 stop22h 50m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Tue 10/20
6:10 am-2:40 pm
1 stop18h 30m
San Francisco
Tue 11/24
4:45 pm-8:20 pm
1 stop17h 35m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Wed 11/18
6:15 am-2:50 pm
1 stop18h 35m
San Francisco
Wed 11/25
4:45 pm-1:35 am
1 stop22h 50m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Tue 10/20
6:10 am-2:40 pm
1 stop18h 30m
San Francisco
Tue 11/17
4:45 pm-1:35 am
1 stop22h 50m
HelsinkiSan Francisco
HEL Helsinki-Vantaa - SFO San Francisco
HELSFO
Helsinki-Vantaa
Wed 10/21
1:55 pm-7:50 pm
1 stop15h 55m
San Francisco
Sun 10/25
10:40 pm-11:50 am
1 stop28h 10m
See travel insights to San Francisco from
How to get the cheapest flight ticket from Helsinki to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Helsinki and San Francisco?
Prices are currently low for flights on this route.
Typical prices usually range from $815 to $1,032.The lowest price recently found on this route was $798.
What is the cheapest month to fly to San Francisco?
If you aren’t able to travel to San Francisco during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $813.
How far in advance should I book a flight from Helsinki to San Francisco?
You are more likely to see cheaper flights to San Francisco from Helsinki when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $974 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Helsinki for as low as $773 on momondo.
Can stopping save me money on Helsinki to San Francisco flights?
You could potentially save up to 24% on your flight if you consider stops on a Helsinki to San Francisco flight.
How have Helsinki to San Francisco flight prices changed over time?
As of October 2026, prices for Helsinki to San Francisco flights are approximately 92% more expensive when compared to flights at the same time last year.
Which airport is the most popular layover for flights between Helsinki and San Francisco?
Frankfurt am Main (FRA) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Helsinki to San Francisco?
Flights via Copenhagen (CPH) offer the lowest average round-trip price of $1,047.
Which layover airport has the shortest travel time from Helsinki to San Francisco?
Flights connecting via London (LHR) have the shortest average one-way travel time: 15h 50m.
Which layover airport has the shortest connection time from Helsinki to San Francisco?
London (LHR) has the shortest average layover time for this route: 1h 55m.
When to book flights from Helsinki to San Francisco
Cheap Helsinki to San Francisco (HEL to SFO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Helsinki to San Francisco
Frequently asked questions about flying from Helsinki to San Francisco
How far is Helsinki-Vantaa to San Francisco by plane?
San Francisco is 5415.9 mi away from Helsinki-Vantaa. Flights usually cover this in 25h 11m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Helsinki-Vantaa Airport to San Francisco Airport?
Prices for flights from Helsinki-Vantaa Airport to San Francisco Airport are updated daily.
How many operators does momondo search for flights from Helsinki-Vantaa Airport to San Francisco Airport?
As of October 2026, there are 3 operators available to choose from for flights from Helsinki-Vantaa Airport to San Francisco Airport.
How old do you have to be to fly from Helsinki-Vantaa Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helsinki-Vantaa Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Helsinki to San Francisco?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Helsinki to San Francisco is Lufthansa (62% of total bookings). The next most popular airlines are Scandinavian Airlines (25%) and Finnair (14%).
Best airlines flying from Helsinki to San Francisco
Compare and see reviews for airlines that fly from Helsinki to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $703 | Free Cancellation | Rating 7.4 2,007 reviews | |||
| PriceFrom $953 | Free Cancellation | Rating 6.8 8,263 reviews | |||
| PriceFrom $963 | Free Cancellation | Rating 7.6 1,428 reviews |
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Helsinki to San Francisco?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Helsinki to San Francisco. momondo saves you time and could save you money on your trip.
Can I find flights from Helsinki to San Francisco with flexible booking policies on momondo?
Yes. All flights to San Francisco from Helsinki on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Helsinki to San Francisco?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from Helsinki.
I’m not ready to book a flight from Helsinki to San Francisco right now. Can momondo alert me if prices change?
If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Helsinki and alert you when they change.