Find Cheap Flights from Helsinki-Vantaa to Seattle/Tacoma Intl (HEL - SEA)

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Looking for a cheap flight? 25% of our users found flights on this route for $656 or less.

FAQs for Booking Helsinki-Vantaa to Seattle/Tacoma Intl Flights

How long does a flight from Helsinki-Vantaa to Seattle/Tacoma Intl take?
An average nonstop flight takes 13h 00m, covering a distance of 4767 miles.
Which airlines provide the cheapest flights from Helsinki-Vantaa to Seattle/Tacoma Intl?
In the past 3 days, the cheapest round-trip tickets were found on Delta ($709), Multiple Airlines ($838) and Icelandair ($1178).
Do I need a passport to fly between Helsinki-Vantaa and Seattle/Tacoma Intl?
Yes.
What’s the cheapest day of the week to fly Helsinki-Vantaa to Seattle/Tacoma Intl?
For Helsinki-Vantaa to Seattle/Tacoma Intl, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Seattle/Tacoma Intl back to Helsinki-Vantaa, the best deals are generally found on Wednesday, with Saturday being the most expensive.

Book cheap flights from Helsinki-Vantaa to Seattle/Tacoma Intl (round-trip)

Airports
Origin
Helsinki
$709
only
$709
Destination
Seattle
$709
only
$709
Mon, Mar 26
HEL
SEA
24h 34m
Tue, Apr 3
SEA
HEL
17h 30m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
JFK
CDG
Excellent 10.0

The food and the service

GDL
ATL
Excellent 9.6

Expensive food

ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

BOS
LGA
Mediocre 2.0

We were in the plane for 3 hours before we could depart. No one offered us a drink or snack.

ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

Sun, Mar 25
HEL
SEA
28h 40m
Mon, Apr 2
SEA
HEL
24h 30m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Aug 9
HEL
SEA
13h 00m
Sun, Aug 26
SEA
HEL
12h 45m
$1178
Trip: 18 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
BOS
KEF
Good 7.6

They provided a pillow and blanket which was very nice, and the crew were helpful in finding space for items during take-off and landing. The boarding and exiting were fairly quick.

Everything on board costs extra, including basic drinks and snacks, but that's to be expected on cheaper flights. I assumed that the inflight movies cost money as well, although I didn't watch any because I didn't have headphones.

ORD
KEF
Good 7.3

Friendly staff Good entertainment options USB at every seat

Food options very expensive

DEN
KEF
Okay 5.6

Entertainment...

Had a tray full of trash most of the way.. don’t they sell trash bags in Iceland?

BRU
KEF
Excellent 8.0

Everything went okay for us on this flight. In the future, I will suggest to my wife, who books air travel for us to read the fine print. The cost to check a bag was $100.00 which would have run us $300.00 for the trip: Boston to Brussels with a layover in Reykjavik, but on the return Brussels to Reykjavik with four days in Iceland and the return to Boston, so there goes the cheap flight! I did enjoy the in-flight movie and a documentary on the return trip as well.

My own earphones on the flight from Brussels to Iceland did not work. I could not plug them into the system.

DEN
KEF
Excellent 8.0

Surprised by very large bag fees, reservation was unclear about baggage allowance and charges.

Thu, Mar 22
HEL
SEA
14h 40m
Wed, Mar 28
SEA
HEL
18h 45m
$1213
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
BOM
Excellent 8.6

Comfortable seats. On-time flight.

Entertainment system difficult to use. Vegetarian food was mediocre at best.

BLR
FRA
Excellent 9.3

Could have more options for entrainment

CDG
FRA
Mediocre 3.3

Flight was delayed twice. 3 hour trip took 15 hours.

BEY
FRA
Good 7.0

Seating, cleanliness, crew courteousy, entertainment.

Boarding process unclear, poor announcement, and messy. No wifi, choice and quality of food. Entertainment was erratic at times.

FRA
YVR
Good 6.0

Food is provided

Delayed 6 hours on the plane

Tue, Mar 27
HEL
SEA
25h 49m
Wed, Mar 28
SEA
HEL
38h 00m
$1213
Trip: 2 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3227 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.8
Food
7.1
LIS
MXP
Good 7.3

Clean and simple aircraft. Limited but professional service. Uncomplicated boarding procedures.

Boarding from bus at a main airport in winter. It looks cheap flyght .But we'll organized.

LIS
MUC
Okay 4.0

Next-day connecting flight after a delayed arrival and involuntary stopover in Porto due to air traffic over LIS. This time around, the flight took off an hour late because of [guess...] air traffic. Well, my dear LIS management, that's how you sink your national carrier.

JFK
LIS
Okay 5.0

CRew was rude. Food was poor.checked baggage fees exhorbitant

LIS
SID
Good 6.0

Staff courteous compared to our previous TAP FLIGHT

LIS
MIA
Excellent 8.0

Excellent Service - pleasant flight - comfortable seats

Poor entertainment system

Tue, Mar 27
HEL
SEA
20h 40m
Tue, Apr 3
SEA
HEL
23h 40m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BJX
LAX
Excellent 8.0

I liked the check-in kiosk, but only because I had no bags to check. I liked being able to choose my own seat. I liked that the flight was uneventful. I liked the staff at all stages, they were friendly and helpful.

They made me shove my purse into my knapsack to fit within their two bag policy. That's a first for me. My Delta flight did not do that.

ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

PVR
MSP
Good 7.3

They have few movies selection that was good

I like being in a big space faster. And clean good service I

GDL
ATL
Excellent 9.6

Expensive food

ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

Fri, Mar 23
HEL
SEA
39h 00m
Thu, Mar 29
SEA
HEL
21h 45m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
LGA
Mediocre 2.0

We were in the plane for 3 hours before we could depart. No one offered us a drink or snack.

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

EWR
DTW
Mediocre 3.3

I've always wanted to go to all five Manhattan boroughs in one day. Thanks to Delta, that happened.

The plane broke down as we were about to take off. Delta rebooked everyone on to new flights because it was pretty obvious that plane was not going to be fixed in time. The crew did their best given the situation. The situation was absolute bs though - we had to take a cab to JFK for our new flight and do the whole security thing again and all that annoying stuff. Thanks for wasting 8 hours of my life, Delta.

ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

Fri, Mar 23
HEL
SEA
39h 00m
Tue, Apr 3
SEA
HEL
32h 45m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

JFK
CDG
Excellent 10.0

The food and the service

GDL
ATL
Excellent 9.6

Expensive food

ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

EWR
DTW
Mediocre 3.3

I've always wanted to go to all five Manhattan boroughs in one day. Thanks to Delta, that happened.

The plane broke down as we were about to take off. Delta rebooked everyone on to new flights because it was pretty obvious that plane was not going to be fixed in time. The crew did their best given the situation. The situation was absolute bs though - we had to take a cab to JFK for our new flight and do the whole security thing again and all that annoying stuff. Thanks for wasting 8 hours of my life, Delta.

Thu, Mar 22
HEL
SEA
28h 30m
Mon, Apr 2
SEA
HEL
24h 30m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 26
HEL
SEA
23h 00m
Sun, Apr 1
SEA
HEL
33h 28m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

BJX
LAX
Excellent 8.0

I liked the check-in kiosk, but only because I had no bags to check. I liked being able to choose my own seat. I liked that the flight was uneventful. I liked the staff at all stages, they were friendly and helpful.

They made me shove my purse into my knapsack to fit within their two bag policy. That's a first for me. My Delta flight did not do that.

FLL
DTW
Excellent 10.0

I like service

JFK
CDG
Excellent 10.0

The food and the service

GDL
ATL
Excellent 9.6

Expensive food

Sun, Mar 25
HEL
SEA
28h 40m
Wed, Mar 28
SEA
HEL
14h 55m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 23
HEL
SEA
39h 00m
Fri, Mar 30
SEA
HEL
13h 35m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

BJX
LAX
Excellent 8.0

I liked the check-in kiosk, but only because I had no bags to check. I liked being able to choose my own seat. I liked that the flight was uneventful. I liked the staff at all stages, they were friendly and helpful.

They made me shove my purse into my knapsack to fit within their two bag policy. That's a first for me. My Delta flight did not do that.

PVR
MSP
Good 7.3

They have few movies selection that was good

I like being in a big space faster. And clean good service I

EWR
DTW
Mediocre 3.3

I've always wanted to go to all five Manhattan boroughs in one day. Thanks to Delta, that happened.

The plane broke down as we were about to take off. Delta rebooked everyone on to new flights because it was pretty obvious that plane was not going to be fixed in time. The crew did their best given the situation. The situation was absolute bs though - we had to take a cab to JFK for our new flight and do the whole security thing again and all that annoying stuff. Thanks for wasting 8 hours of my life, Delta.

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

Sat, Mar 24
HEL
SEA
22h 54m
Mon, Apr 2
SEA
HEL
24h 30m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Aug 10
HEL
SEA
13h 00m
Sun, Aug 26
SEA
HEL
12h 45m
$1178
Trip: 17 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
ORY
KEF
Okay 4.0

They were helpful and let me check my boulder pad as sports equipment for free on the flight to paris.

BOS
KEF
Good 7.6

They provided a pillow and blanket which was very nice, and the crew were helpful in finding space for items during take-off and landing. The boarding and exiting were fairly quick.

Everything on board costs extra, including basic drinks and snacks, but that's to be expected on cheaper flights. I assumed that the inflight movies cost money as well, although I didn't watch any because I didn't have headphones.

ORD
KEF
Good 7.3

Friendly staff Good entertainment options USB at every seat

Food options very expensive

KEF
SEA
Okay 4.0

Flight attendants were attractive

On the way back sat on plane waiting for 2 hours due to mechanical issues, then 30-94th more hours eating as flight got cancelled. They charged me for bring my boulder pad back.

KEF
OSL
Excellent 8.0

We were ahead of schedule, which was nice

Thu, Mar 22
HEL
SEA
14h 40m
Sat, Mar 31
SEA
HEL
20h 00m
$1244
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
SFO
Good 7.0

See above. The same applies.

See above. The same applies.

BEY
FRA
Good 7.0

Seating, cleanliness, crew courteousy, entertainment.

Boarding process unclear, poor announcement, and messy. No wifi, choice and quality of food. Entertainment was erratic at times.

FCO
FRA
Good 6.0

Food is provided

Delayed 6 hours on the plane

DEN
FRA
Good 7.0

Big plane, captain communicated our flight well.

Flight personelle were not very friendly, and as I am not a great flier and was making my first oveseas trip I was a bit disappointed they were so curt.

CDG
FRA
Mediocre 3.3

Flight was delayed twice. 3 hour trip took 15 hours.

Sun, Aug 12
HEL
SEA
28h 40m
Fri, Aug 24
SEA
HEL
14h 10m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Aug 11
HEL
SEA
13h 00m
Sun, Aug 26
SEA
HEL
12h 45m
$1178
Trip: 16 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
SEA
KEF
Excellent 8.0

Blankets and pillows at each seat

Only one drink service on a very long flight. very expensive food choices.

DEN
KEF
Okay 5.6

Entertainment...

Had a tray full of trash most of the way.. don’t they sell trash bags in Iceland?

DEN
KEF
Excellent 8.0

Surprised by very large bag fees, reservation was unclear about baggage allowance and charges.

KEF
SEA
Okay 4.0

Flight attendants were attractive

On the way back sat on plane waiting for 2 hours due to mechanical issues, then 30-94th more hours eating as flight got cancelled. They charged me for bring my boulder pad back.

BOS
KEF
Good 7.6

They provided a pillow and blanket which was very nice, and the crew were helpful in finding space for items during take-off and landing. The boarding and exiting were fairly quick.

Everything on board costs extra, including basic drinks and snacks, but that's to be expected on cheaper flights. I assumed that the inflight movies cost money as well, although I didn't watch any because I didn't have headphones.

Wed, Mar 21
HEL
SEA
22h 00m
Thu, Mar 29
SEA
HEL
13h 35m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

ATL
EWR
Excellent 8.6

No LCD screen for entertainment.

BJX
LAX
Excellent 8.0

I liked the check-in kiosk, but only because I had no bags to check. I liked being able to choose my own seat. I liked that the flight was uneventful. I liked the staff at all stages, they were friendly and helpful.

They made me shove my purse into my knapsack to fit within their two bag policy. That's a first for me. My Delta flight did not do that.

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

Fri, Mar 23
HEL
SEA
14h 40m
Sun, Apr 1
SEA
HEL
13h 10m
$1275
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FRA
BOM
Excellent 8.6

Comfortable seats. On-time flight.

Entertainment system difficult to use. Vegetarian food was mediocre at best.

MUC
CLT
Excellent 10.0

On time - although a long flight I didn’t see the time go by

FRA
ORD
Mediocre 3.0

I payed extra 35$ for my seat but there was no leg space at all . There were already two metal boxes under my seat I literally crunched my feet under the seat . Worst travel of my life. The food options were over by the time they came to us. So had to eat what was remaining. Not good at all

FCO
FRA
Good 6.0

Food is provided

Delayed 6 hours on the plane

FRA
SFO
Good 6.6

delayed boarding then waited three hours after we boarded for deicing. The piolet and crew did not update us. Made the flight very long.

Sun, Aug 12
HEL
SEA
13h 00m
Sun, Aug 26
SEA
HEL
12h 45m
$1178
Trip: 15 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
BRU
KEF
Excellent 10.0

My exit aisle seat was just great, with no one on either side of me !!!!! Very kind airplane staff. I had a great sleep.

nothing

ORD
KEF
Good 7.3

Friendly staff Good entertainment options USB at every seat

Food options very expensive

KEF
SEA
Okay 4.0

Flight attendants were attractive

On the way back sat on plane waiting for 2 hours due to mechanical issues, then 30-94th more hours eating as flight got cancelled. They charged me for bring my boulder pad back.

KEF
EWR
Mediocre 2.8

My entertainment system stopped working 1/2 way through the flight and there was very little leg room that caused back pain

DEN
KEF
Okay 5.6

Entertainment...

Had a tray full of trash most of the way.. don’t they sell trash bags in Iceland?

Helsinki-Vantaa to Seattle/Tacoma Intl Flight Information

Flights Arrive in Seattle/Tacoma Intl
Flights Depart from Helsinki-Vantaa
Flight Price $709
Distance 4767 miles
Airlines Delta, Icelandair, Lufthansa, TAP AIR PORTUGAL
*
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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.