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HEL - SFO

$374 Find cheap flights from Helsinki to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helsinki to San Francisco departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to San Francisco.
In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Cheap flight deals from Helsinki to San Francisco (HEL-SFO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:30 pm - 11:20 amHEL-SFO
32h 50m1 stop
6:35 pm - 11:35 amSFO-HEL
31h 00m1 stop
$697Turkish Airlines
Find Deal
Mon, Sep 16 - Thu, Oct 3
6:20 am - 12:40 pmHEL-SFO
16h 20m1 stop
9:05 pm - 11:50 pmSFO-HEL
16h 45m1 stop
$727Lufthansa
Find Deal
Tue, Aug 27 - Tue, Sep 3
12:30 pm - 4:40 pmHEL-SFO
38h 10m1 stop
6:35 pm - 11:35 amSFO-HEL
31h 00m1 stop
$731Turkish Airlines
Find Deal
Mon, Sep 16 - Wed, Oct 2
7:00 am - 3:50 pmHEL-SFO
18h 50m1 stop
5:40 pm - 11:55 pmSFO-HEL
20h 15m1 stop
$734Scandinavian Airlines
Find Deal
Fri, Sep 13 - Wed, Oct 2
7:00 am - 3:50 pmHEL-SFO
18h 50m1 stop
5:40 pm - 10:35 amSFO-HEL
30h 55m1 stop
$746Scandinavian Airlines
Find Deal
Tue, Sep 17 - Wed, Oct 2
7:00 am - 6:50 pmHEL-SFO
21h 50m2 stops
3:00 pm - 4:40 pmSFO-HEL
15h 40m1 stop
$751Delta
Find Deal
Tue, Sep 17 - Fri, Oct 4
6:40 am - 6:00 pmHEL-SFO
21h 20m1 stop
8:30 am - 4:40 pmSFO-HEL
22h 10m2 stops
$755Delta
Find Deal
Sun, Sep 15 - Wed, Oct 2
12:25 pm - 6:58 pmHEL-SFO
16h 33m1 stop
9:47 am - 10:45 amSFO-HEL
14h 58m1 stop
$906Finnair
Find Deal
Sun, Sep 15 - Sat, Oct 5
7:40 am - 9:09 pmHEL-SFO
23h 29m2 stops
12:59 am - 10:45 amSFO-HEL
23h 46m1 stop
$951American Airlines
Find Deal
Tue, Aug 27 - Mon, Sep 2
12:25 pm - 10:01 amHEL-SFO
31h 36m1 stop
12:59 am - 10:45 amSFO-HEL
23h 46m1 stop
$967American Airlines
Find Deal
Tue, Aug 27 - Mon, Sep 2

Flights from Helsinki to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Helsinki to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Helsinki to San Francisco?

The average price of all flights from Helsinki to San Francisco clicked on KAYAK for each day over the last 12 months.
For Helsinki to San Francisco, Monday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from San Francisco back to Helsinki, the best deals are generally found on Wednesday, with Monday being the most expensive.

What is the cheapest month to fly from Helsinki to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Helsinki to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Helsinki to San Francisco is November, where tickets cost $698 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $1,097 and $953 respectively.

How far in advance should I book a flight from Helsinki to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Helsinki to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Helsinki to San Francisco, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 14 days before departure.

Which airlines provide the cheapest flights from Helsinki to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to San Francisco from Helsinki were found on Icelandair ($633) and Turkish Airlines ($731), and the lowest round-trip tickets were found on Turkish Airlines ($697) and Lufthansa ($727).

Good to know

Low season

January

High season

December

Cheapest flight

$374
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Helsinki to San Francisco

When to book flights from Helsinki to San Francisco

Are your dates flexible? Find out the best times to travel from Helsinki to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helsinki to San Francisco

  • What is the cheapest flight from Helsinki to San Francisco?

    In the last 3 days, the lowest price for a flight from Helsinki to San Francisco was $374 for a one-way ticket and $697 for a round-trip.

  • Do I need a passport to fly between Helsinki and San Francisco?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Helsinki and on arrival in San Francisco.

  • Which airports will I be using when flying from Helsinki to San Francisco?

    On your way to San Francisco, you’ll fly out from Helsinki-Vantaa. You’ll be landing at San Francisco.

  • Which aircraft models fly most regularly from Helsinki to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helsinki to San Francisco?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Helsinki and San Francisco, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Helsinki to San Francisco, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Helsinki to San Francisco are Delta and KLM. With an average price for the route of $770 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $747 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Helsinki to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helsinki to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helsinki to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Helsinki is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helsinki to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Helsinki with another airline. Booking your flights between Helsinki and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helsinki to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Helsinki up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Helsinki to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Helsinki to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helsinki to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10438 reviews
8.2Boarding
8.6Crew
7.4Food
7.9Comfort
8.0Entertainment
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

I was sitting at comfort +. One of the Asian male crew was so loud when he delivered service. When he asked questions or what food you need, he was shouting. He must be a prison guard before going Delta.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

The wine was low quality Finnair label stuff in small bottles and only one small bottle each. Embarassinng. A competing airline served me two generous glasses of a nice South African Shiraz from regular wine bottles, a Beck's beer, and a generous Dewar's White Label on the rocks. Cabin service was good and polite, plane interior was beautiful, but cramped.

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

The crew was very good, excellent, they help me with my needs.! Food was not that good.

Bathrooms weren’t too clean. Onboard entertainment was light. Other than that everything was great. Food, service, comfort and crew. Although it was hard to understand the crew announcements.

Much better, not their fault but my plane was so delayed causing me to have to take this airline rather than my earlier connecting flight

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

My return flight has been changed to JFK from EWR without any notice or reason

This was my first time flying SAS and used them for 4 flights. The crews, flight and communication was outstanding. I flew premium economy and was extremely impressed by their SAS lounges. I will 100% ise SAS again. Everyone was so pleasant!

I upgraded to economy plus and it’s so worth the price. The crew is exceptional and the food is pretty decent. I would definitely fly with them again.

They lost my luggage. Tromso in winter without warm clothes is not fun.

I paid for wifi and it worked about a total of 5 min. Feel ripped off

I couldn’t make it to the airport for my original flight due to bad weather; roads were shut down, buses and trains were closed. Since the plane wasn’t cancelled, I still had to pay $720 to change my ticket.

Overall, this flight team did a fantastic job. They came often with the water, coffee and tea. There was no meal choice in coach, but the lasagna lunch was decent. The sandwich snack just before landing was tasty. The baggage bins were large, so no trouble holding carry on luggage.

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

amazing! they were so kind and allowed us to sit on empty seats so we could stretch our legs and sleep good. Food is amazing as well plus dessert in the middle of the flight!

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Efficient boarding. Good flight but seats were quite uncomfortable considering we'd already been sitting on two flights, total 13 hours or so. Would have liked to have prices on the menu of amenities on the plane. We could have used more water. Restrooms and nonalcoholic beverages at no extra cost, not much else. I realize these were discount tickets, and the airline has to break even, so I can't say we were expecting amenities to be plentiful. Still, it's nice with long flights to discover a few. Very pleasant crew though.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Crew was super rude in business class. Not friendly or helpful. Luggage was damaged and was told to file with United and that was unsuccessful.

The connection at Frankfurt was chaotic and nearly missed the flight to Atlanta. They made was wait for busses to transfer and it took ages

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

My experience would have been greatly improved by arriving on time to connect to my Porto flight. The staff that dealt with the aftermath of the late arrival evidently booked my group into a hotel in Frankfurt. This reduced my time in Porto Portugal a day and half. I do want to commend Jorge Klein for his hard work. He spent a great deal.of time trying to rebook the flight and he eventually did rebook for the next day and did provide accommodations for me overnight. This was a big issue for me and the group I traveled. The rest of the trip was good.

Not your fault…..didn’t get my drink until just before landing….bumpy flight.

Boarding was a zoo. London ground crew was useless. Poor communication regarding where to line up. We were group 2, and everyone was jammed in together. Ground crew didn’t seem to care.

Book cheap flights from Helsinki to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Helsinki to San Francisco found on KAYAK in the last 72 hours.
6/9Sun
2 stops
46h 45mHEL-SFO
$374
7/7Sun
2 stops
27h 00mHEL-SFO
$436
8/4Sun
2 stops
27h 00mHEL-SFO
$451
6/9Sun
3 stops
49h 30mHEL-SFO
$461
8/7Wed
2 stopsIcelandair
17h 57mHEL-SFO
$633
8/8Thu
2 stopsAmerican Airlines
20h 22mHEL-SFO
$779
8/9Fri
2 stopsAmerican Airlines
19h 53mHEL-SFO
$780
6/29Sat
1 stopFinnair
16h 55mHEL-SFO
$933
7/10Wed
1 stopAir France
16h 05mHEL-SFO
$944
6/7Fri
2 stopsIcelandair
41h 03mHEL-SFO
$1,928

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Helsinki - San Francisco Flights

Departure:

Helsinki (HEL)Finland

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Helsinki

Cabin classes: