Find Cheap Flights from San Francisco to Helsinki-Vantaa (SFO - HEL)

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Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
June
Most popular time to fly
16%
expected price increase
Average Price:
$1100
(avg. price over the last 2 weeks)
Good Deal:
$812
or less (round trip)

When to Book Flights from San Francisco to Helsinki-Vantaa

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $811 or less.
The cheapest flight from San Francisco to Helsinki-Vantaa was found 90 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is January.
Morning departure is around 26% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Francisco to Helsinki-Vantaa Flights

How long does a flight from San Francisco to Helsinki-Vantaa take?
An average nonstop flight takes 10h 40m, covering a distance of 5421 miles.
Which airlines provide the cheapest flights from San Francisco to Helsinki-Vantaa?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($432), British Airways ($637) and Finnair ($722).
Do I need a passport to fly between San Francisco and Helsinki-Vantaa?
Yes.
What’s the cheapest day of the week to fly San Francisco to Helsinki-Vantaa?
For San Francisco to Helsinki-Vantaa, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Helsinki-Vantaa back to San Francisco, the best deals are generally found on Thursday, with Wednesday being the most expensive.

Book cheap flights from San Francisco to Helsinki-Vantaa (round-trip)

Airports
Origin
San Francisco
$432
only
$432
Destination
Helsinki
$432
only
$432
Thu, Apr 12
SFO
HEL
24h 30m
Thu, Apr 19
HEL
SFO
19h 40m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Aug 14
SFO
HEL
14h 50m
Thu, Aug 23
HEL
SFO
16h 40m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 15476 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
MAD
LHR
Okay 5.3

old plane, no entertainment, had to pay for non alcohol drinks

LHR
SEA
Excellent 8.6

The crew and the plan and the service were all top notch. However, their new policy as of 1/1/2018 in which they even charge for coffee and water seems very misplaced and excessive.

Their new policy as of 1/1/2018 in which they even charge for coffee and water on short flights (Madrid to London in this case) seems excessive, even in this day of ala carte flying. :-(

LHR
NBO
Good 6.0

Crew was very nice and helpful

Did not get the seat according to the seatplan.I booked exit row seat 30..got 30..but exit row was 28.

IAH
LHR
Excellent 8.0

Crew on the flight home was extremely friendly! Flights were all on time. Food service and drinks were very good. Great in flight entertainment options

Customer service personnel over the phone was so rude to me. Flight crew on the flight from dfw to lhr wasn’t friendly at all.

LHR
MAD
Good 6.0

It was just ok.

Nothing was complimentary.

Sun, May 6
SFO
HEL
10h 40m
Tue, May 15
HEL
SFO
11h 00m
Trip: 10 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 18 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
JFK
HEL
Excellent 10.0

Very nice staff. Probably one of the best flights

SFO
HEL
Excellent 9.6

VIE
HEL
Mediocre 3.3

I hurt my knee. The legroom is too small.

SFO
HEL
Excellent 8.0

nonstop to Helsinki was great...I have done this route over 100 times and this was the first time non-stop. When you have 17-19 hours travel time in your head door to door and then it is 12 - you really appreciate the extra time. THANK YOU!

HEL
NRT
Excellent 9.3

I really enjoyed the whole flight - Finnair is definitely one of the best airlines.

I wish there was a bigger choice of classical music in the entertainment program.

Thu, Mar 8
SFO
HEL
25h 00m
Mon, Mar 19
HEL
SFO
20h 20m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Jun 3
SFO
HEL
18h 35m
Wed, Jun 13
HEL
SFO
20h 15m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 28
SFO
HEL
18h 20m
Thu, May 17
HEL
SFO
20h 00m
Trip: 20 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Jul 1
SFO
HEL
29h 16m
Thu, Aug 30
HEL
SFO
11h 00m
Trip: 61 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 15476 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
BWI
Okay 4.0

Quick boarding

Service was poor, flight attendants were rude.

MAD
LHR
Excellent 10.0

I have to rate British Airways as a 10 out of 10 in almost all categories...comfort of the plane, food and service, boarding, notifications, crew, etc. In particular, the long haul flight from London to Seattle everything was truly top notch!

Their baggage handlers damaged several parts on my checked-in luggage...three zipper pulls and one clasp. What are they doing with the bags? How can they damage so many things in one fell swoop? This is a good quality Atlantic suitcase. Also, on the short flights, in this case Madrid to London, they are now charging for EVERYTHING...even water and coffee. They said it was a new policy as of 1/1/2018.

LHR
SEA
Excellent 8.6

The crew and the plan and the service were all top notch. However, their new policy as of 1/1/2018 in which they even charge for coffee and water seems very misplaced and excessive.

Their new policy as of 1/1/2018 in which they even charge for coffee and water on short flights (Madrid to London in this case) seems excessive, even in this day of ala carte flying. :-(

FAO
LGW
Mediocre 3.6

nice employees

for the second time on this flight, the onboard devise for credit cards would not accept mine. this is the same card i used to book the flight. i complained to british air last time but they obviously haven't fixed the problem. there seems to be a problem using american credit cards these flights. is is a problem because nothing is free. luck;y a flight attendant did feel bad about it and gave me a glass of water

LHR
NBO
Good 6.0

Crew was very nice and helpful

Did not get the seat according to the seatplan.I booked exit row seat 30..got 30..but exit row was 28.

Sun, Jun 3
SFO
HEL
10h 40m
Thu, Jun 7
HEL
SFO
11h 00m
Trip: 5 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 18 reviews
Overall
7.9
Boarding
8.0
Comfort
7.5
Crew
8.3
Entertainment
7.3
Food
7.2
SFO
HEL
Excellent 8.0

nonstop to Helsinki was great...I have done this route over 100 times and this was the first time non-stop. When you have 17-19 hours travel time in your head door to door and then it is 12 - you really appreciate the extra time. THANK YOU!

SFO
HEL
Excellent 9.3

The flight was good! Much better than US domestic carriers with comfortable seats and a good layout to the aircraft.

Food was good, not great. Crew was attentive but missed being great by one notch and the flight could have been faster. All trifling details. But overall... If they didn't run out of chicken on the flight

VIE
HEL
Mediocre 3.3

I hurt my knee. The legroom is too small.

SVO
HEL
Good 6.5

The flight did eventually take off, unlike a few others leaving around the same time.

We were delayed several hours and were never told why. Mostly there were no Aeroflot staff at the gate to ask. When there was, they said they couldn't help us because our flight was a codeshare with FinnAir. At the last minute they switched gates, sending us all scurrying.

LED
HEL
Excellent 9.2

I liked that there was a smaller airplane on LED - HEL route: it gives more "feeling of flying" than the bigger planes do.

I didn't like the fact that it was not indicated in advance (when the tickets are sold) that LED - HEL route is operated by a different airline, even though that airline is a Finnair's partner. It would have been better to have a complete information up front. But the airplane and crew were excellent.

Thu, May 3
SFO
HEL
10h 40m
Tue, May 15
HEL
SFO
11h 00m
Trip: 13 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 15476 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
SEA
Excellent 8.6

The crew and the plan and the service were all top notch. However, their new policy as of 1/1/2018 in which they even charge for coffee and water seems very misplaced and excessive.

Their new policy as of 1/1/2018 in which they even charge for coffee and water on short flights (Madrid to London in this case) seems excessive, even in this day of ala carte flying. :-(

LHR
NBO
Good 6.0

Crew was very nice and helpful

Did not get the seat according to the seatplan.I booked exit row seat 30..got 30..but exit row was 28.

LHR
LYS
Mediocre 3.3

Safe landing

Was charged 65 pounds for checking one bag. This was a big news to me. BA claims it was because I booked through Kayak. Would not have booked the flight. Luggage cost is almost superior to flight cost. Forced me to check my overhead luggage. Flight was delayed one hour because we had to go back to gate to rebLANCE WEIGHT

MAD
LHR
Excellent 10.0

I have to rate British Airways as a 10 out of 10 in almost all categories...comfort of the plane, food and service, boarding, notifications, crew, etc. In particular, the long haul flight from London to Seattle everything was truly top notch!

Their baggage handlers damaged several parts on my checked-in luggage...three zipper pulls and one clasp. What are they doing with the bags? How can they damage so many things in one fell swoop? This is a good quality Atlantic suitcase. Also, on the short flights, in this case Madrid to London, they are now charging for EVERYTHING...even water and coffee. They said it was a new policy as of 1/1/2018.

LHR
MIA
Excellent 9.6

Nice new plane, great flight staff, great entertainment

Checking in at the gate took a lot of time and no food or bathrooms available

Show more results

San Francisco to Helsinki-Vantaa Flight Information

Avg. Flight Duration 10h 50m
Flights Arrive in Helsinki-Vantaa
Flights Depart from San Francisco
Flight Price $432
Distance 5421 miles
Airlines British Airways, Finnair
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.