Cheap flights from San Francisco to Helsinki from $378
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Helsinki departing on 5/6. 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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How to get the cheapest flight ticket from San Francisco to Helsinki
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 cheapest month to fly to Helsinki?
The month of November is, on average, the cheapest month to fly to Helsinki from San Francisco, with most prices found around $603. If you aren’t able to travel during the month of November, then book flights to Helsinki from San Francisco during October instead. Flights to Helsinki in October, while not as cheap as those in November, still average around $694.
What is the cheapest day to depart on your flight to Helsinki?
The cheapest day to depart on your flight to Helsinki is on a Sunday when prices can be found for as low as $902. This is often the case because there is less demand to fly during this day of the week. Flights from San Francisco to Helsinki on a Saturday will generally be more expensive and average around $1,185. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Helsinki?
According to our data, the cheapest time of day to fly to Helsinki is in the evening. momondo users have found flights departing from San Francisco to Helsinki in the evening for as low as $931. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $1,133 per ticket.
How far in advance should I book a flight to Helsinki?
You are more likely to see cheaper flights to Helsinki from San Francisco when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $955 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from San Francisco for as low as $678 on momondo.
What is the cheapest airline that flies from San Francisco to Helsinki-Vantaa?
British Airways, Lufthansa, and United Airlines are the most popular carriers operating from San Francisco to Helsinki-Vantaa
What airlines fly to Helsinki?
American Airlines, Lufthansa and Scandinavian Airlines are the top three most popular airlines that fly to Helsinki from San Francisco according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 12 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.
When to book flights from San Francisco to Helsinki
Cheap San Francisco to Helsinki (SFO to HEL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to Helsinki
How far is San Francisco to Helsinki-Vantaa by plane?
San Francisco and Helsinki-Vantaa are 5415.4 mi apart from one another. In terms of flight time, this usually takes a little over 14h 55m.
When did momondo last update prices for flights from San Francisco Airport to Helsinki-Vantaa Airport?
Prices for flights from San Francisco Airport to Helsinki-Vantaa Airport refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Helsinki-Vantaa Airport?
As of April 2025, there are 12 operators available to choose from for flights from San Francisco Airport to Helsinki-Vantaa Airport.
How old do you have to be to fly from San Francisco Airport to Helsinki-Vantaa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Helsinki-Vantaa Airport.
What documentation or ID do you need to fly to Helsinki-Vantaa Airport?
The required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Francisco to Helsinki?
Based on momondo bookings for flights between San Francisco and Helsinki, the leading airline is American Airlines, making up 21% of the total bookings. Other popular airlines include Lufthansa with 15%, Scandinavian Airlines with 13%, and United Airlines with 11%.
Best airlines flying from San Francisco to Helsinki
Compare and see reviews for airlines that fly from San Francisco to Helsinki with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $447 | Free Cancellation | Rating 7.8 1,323 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.3 1,335 reviews | |||
| PriceFrom $548 | Free Cancellation | Rating 6.6 6,756 reviews | |||
| PriceFrom $552 | Free Cancellation | Rating 7.6 1,269 reviews | |||
| PriceFrom $566 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $572 | Free Cancellation | Rating 7.0 9,114 reviews | |||
| PriceFrom $572 | Free Cancellation | Rating 7.3 345 reviews | |||
| PriceFrom $582 | Free Cancellation | Rating 8.0 7,914 reviews | |||
| PriceFrom $597 | Free Cancellation | Rating 7.3 3,757 reviews | |||
| PriceFrom $639 | Free Cancellation | Rating 7.5 1,433 reviews |
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Why should I use momondo to find a flight deal from San Francisco to Helsinki?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Helsinki. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Francisco to Helsinki with flexible booking policies on momondo?
Flights from San Francisco to Helsinki with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from San Francisco to Helsinki?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Helsinki.
I’m not ready to book a flight from San Francisco to Helsinki right now. Can momondo alert me if prices change?
Yes. momondo can track prices for San Francisco to Helsinki flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.