Find Cheap Flights from Seattle/Tacoma Intl to Ko Samui (SEA - USM)

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FAQs for Booking Seattle/Tacoma Intl to Ko Samui Flights

How long does a flight from Seattle/Tacoma Intl to Ko Samui take?
An average nonstop flight takes 23h 45m, covering a distance of 7721 miles.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Ko Samui?
In the past 3 days, the cheapest round-trip tickets were found on Singapore Airlines ($956), Multiple Airlines ($1024) and EVA Air ($1029).
Do I need a passport to fly between Seattle/Tacoma Intl and Ko Samui?
Yes.

Book cheap flights from Seattle/Tacoma Intl to Ko Samui (round-trip)

Airports
Origin
Seattle
$956
only
$956
Destination
Ko Samui
$956
only
$956
Sat, Apr 21
SEA
USM
35h 06m
Mon, Apr 30
USM
SEA
47h 11m
Trip: 10 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2330 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
LAX
ICN
Good 7.0

Loved the hot towel service

Entertainment could be better, however there were a few new and Oscar nominated movies available. Personal air conditioning would be great, I was too hot the entire flight

SIN
SFO
Excellent 8.0

The food is very good in economy. Large screen tv gor movies and games.

all was good, nothing bad

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

FRA
JFK
Excellent 9.6

That the A380 was only 70%full, resulting in me getting three seats to myself. I was able to stretch out and sleep for most of the flight. Food and service were top notch. Better value than Lufthansa or American, for the overall flight experience. You could fly cheaper, but not better, in economy.

Though we landed early at JFK, we had a one hour wait on the tarmac until one of the only two gates capable of receiving an A380 opened up.

SFO
HKG
Excellent 8.3

The service from the Singapore Airlines is always impeccable. The food is delicious. The business class seat is spacious and wider than all the US airlines. There are plenty storage space in your seat space. The entertainment system has many choices and has a lot new release movies and shows.

Unfortunately, the ride on Boeing 777 is not as smooth as the Airbus'. The noise in the cabin is louder. The seat is comfortable but the bed is not. First, the flat bed is not transformed by a button and it needs a physical person to flip it over. The mat is thin and I can feel some hard edges while lying down. The noise from the engine transmits to the bed and it is hard to sleep even with the noise cancellation headphone.

Fri, Apr 20
SEA
USM
52h 10m
Sun, Apr 29
USM
SEA
37h 40m
$1024
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 18
SEA
USM
39h 35m
Sun, Apr 29
USM
SEA
22h 45m
$1029
Trip: 12 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
TPE
JFK
Excellent 9.6

felt welcomed in the flight.

SGN
TPE
Excellent 10.0

Veggie food delicious

No

ORD
TPE
Excellent 9.6

Eveyone was syper friendly and the food was decent. They were very good about allowing me to change seats to an open seat once the doors were closed.

The selection of movies to watch was not ver good. They had a few (10-15) choices for a few genre but over all there were obly 1 or 2 decent movies per genre.

IAH
TPE
Excellent 10.0

Very much

TPE
SFO
Excellent 9.0

Crew, boarding, services.

Food can be better.

Sat, Feb 24
SEA
USM
48h 35m
Sat, Mar 3
USM
SEA
41h 25m
$1768
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 4071 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
HKG
MNL
Excellent 10.0

None

JFK
HKG
Excellent 8.0

Unable to do online check in, have to waste time to line up in the airport. Not all people need visa to enter a country, this is rediculous that I couldn’t proceed to check in online because I do not have visa to enter my own country. Rediculous

HKG
KIX
Okay 5.0

Good entertainment choices, but the system itself was awkward and slow to respond.

The 777 was tired. Tray tables weren’t clean and it was fitted with seats that did not recline. Most uncomfortable!

HKG
BOS
Good 6.6

Seats had good headrests with adjustable "wings" to cradle head while sleeping. USB plug below entertainment screen.

A good half the plane was first class and business class. (This was a 15 hour Hong King to Boston flight.) They handed out a fancy menu with 4 entrees but by the time they got to economy only pasta was left. We did at least get a small bottle of water; on our outgoing flight they doled it out in meager glasses. When boarding in Hong Kong we had to go through an additional security check between the gate and the plane (that was a first...) and had our water bottles confiscated. So we were reliant on what they would give us on the plane. Seats were tight, unlike some airlines that give you a little extra room. Wouldn't fly again unless their price was a real bargain.

HKG
LAX
Mediocre 2.0

the person in front of me just laid down his seat for almost entire flight which made me to have no rooms people are switching seats without letting flight attendants to know. This is not fair for other customers

Mon, Mar 12
SEA
USM
33h 20m
Tue, Mar 20
USM
SEA
34h 58m
$1013
Trip: 9 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2330 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
LAX
ICN
Good 7.0

Loved the hot towel service

Entertainment could be better, however there were a few new and Oscar nominated movies available. Personal air conditioning would be great, I was too hot the entire flight

SIN
LAX
Good 7.6

There was not much leg room in the seatings

SFO
SIN
Excellent 8.0

Premium economy

SIN
LAX
Excellent 9.6

SQ did a great job again. I plan to fly them in the future.

My only criticism is that the flight attendants didn’t pass through the cabin with water during the 9 hour flight.

MAA
SIN
Good 7.6

The seats and there is not much leg room

Fri, Apr 27
SEA
USM
41h 05m
Tue, May 1
USM
SEA
25h 30m
$1066
Trip: 5 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
IAH
TPE
Excellent 10.0

Very much

ORD
TPE
Excellent 9.6

Eveyone was syper friendly and the food was decent. They were very good about allowing me to change seats to an open seat once the doors were closed.

The selection of movies to watch was not ver good. They had a few (10-15) choices for a few genre but over all there were obly 1 or 2 decent movies per genre.

HKG
TPE
Excellent 9.0

Crew services, boarding, on time

Food and seat can be better

TPE
HAN
Okay 5.6

We won’t fly Eva again.

TPE
IAH
Good 7.6

When offering drinks, the steward didn't give passengers enough time to make their selection. Offerred snack in the dark when most people were asleep. Understand that the attendants are trying to carry their tasks in a specific time frame but there must be a better way to serve your customers, such as announcing that snack can be brought to you upon your request.

Sun, Mar 18
SEA
USM
40h 05m
Sat, Mar 24
USM
SEA
50h 16m
$1115
Trip: 7 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2330 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SIN
LAX
Good 7.6

There was not much leg room in the seatings

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

LAX
NRT
Excellent 10.0

The seats are very comfortable. There was ample entertainment.

No complaints at all. They are very professional and I would chose them again.

SIN
SFO
Excellent 8.0

The food is very good in economy. Large screen tv gor movies and games.

all was good, nothing bad

SFO
HKG
Excellent 8.3

The service from the Singapore Airlines is always impeccable. The food is delicious. The business class seat is spacious and wider than all the US airlines. There are plenty storage space in your seat space. The entertainment system has many choices and has a lot new release movies and shows.

Unfortunately, the ride on Boeing 777 is not as smooth as the Airbus'. The noise in the cabin is louder. The seat is comfortable but the bed is not. First, the flat bed is not transformed by a button and it needs a physical person to flip it over. The mat is thin and I can feel some hard edges while lying down. The noise from the engine transmits to the bed and it is hard to sleep even with the noise cancellation headphone.

Mon, Mar 12
SEA
USM
40h 05m
Fri, Mar 16
USM
SEA
45h 37m
$1135
Trip: 5 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2330 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SGN
SIN
Good 6.3

Nothing

My flight was delayed by 2 hours so I missed my connecting flight in Singapore. There was a huge queue of people who missed their connecting flight cos of an accident in the runway. The airline did nothing to prepare for this situation. It took hours to get another flight organised, communication was non existent and refreshments took ages to come. Airline didn't help with finding a hotel for stranded passengers.

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

SIN
LAX
Good 7.6

There was not much leg room in the seatings

MAA
SIN
Good 7.6

The seats and there is not much leg room

LAX
ICN
Good 7.0

Loved the hot towel service

Entertainment could be better, however there were a few new and Oscar nominated movies available. Personal air conditioning would be great, I was too hot the entire flight

Wed, Feb 28
SEA
USM
41h 15m
Wed, Mar 7
USM
SEA
25h 25m
$1279
Trip: 8 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
SGN
TPE
Excellent 10.0

Veggie food delicious

No

HKG
TPE
Excellent 9.0

Crew services, boarding, on time

Food and seat can be better

JFK
TPE
Excellent 10.0

Their performance were great!

No bad experience encountered. Everything went smooth.

SEA
TPE
Okay 5.3

The seats are way too close to each other. I’m 5 foot four and my knees touched this front

MNL
TPE
Excellent 10.0

It was my first time flying with EVA. I have nothing bad to say. I will fly with them again and again.

None.

Mon, Jul 16
SEA
USM
37h 55m
Fri, Jul 27
USM
SEA
45h 09m
$1150
Trip: 12 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2330 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SGN
SIN
Good 6.3

Nothing

My flight was delayed by 2 hours so I missed my connecting flight in Singapore. There was a huge queue of people who missed their connecting flight cos of an accident in the runway. The airline did nothing to prepare for this situation. It took hours to get another flight organised, communication was non existent and refreshments took ages to come. Airline didn't help with finding a hotel for stranded passengers.

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

LAX
ICN
Good 7.0

Loved the hot towel service

Entertainment could be better, however there were a few new and Oscar nominated movies available. Personal air conditioning would be great, I was too hot the entire flight

SFO
HKG
Excellent 8.3

The service from the Singapore Airlines is always impeccable. The food is delicious. The business class seat is spacious and wider than all the US airlines. There are plenty storage space in your seat space. The entertainment system has many choices and has a lot new release movies and shows.

Unfortunately, the ride on Boeing 777 is not as smooth as the Airbus'. The noise in the cabin is louder. The seat is comfortable but the bed is not. First, the flat bed is not transformed by a button and it needs a physical person to flip it over. The mat is thin and I can feel some hard edges while lying down. The noise from the engine transmits to the bed and it is hard to sleep even with the noise cancellation headphone.

MAA
SIN
Good 7.6

The seats and there is not much leg room

Sun, Mar 11
SEA
USM
25h 20m
Tue, Mar 13
USM
SEA
38h 05m
$1279
Trip: 2 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
HKG
TPE
Excellent 9.0

Crew services, boarding, on time

Food and seat can be better

ORD
TPE
Excellent 9.6

Eveyone was syper friendly and the food was decent. They were very good about allowing me to change seats to an open seat once the doors were closed.

The selection of movies to watch was not ver good. They had a few (10-15) choices for a few genre but over all there were obly 1 or 2 decent movies per genre.

MNL
TPE
Excellent 10.0

It was my first time flying with EVA. I have nothing bad to say. I will fly with them again and again.

None.

TPE
IAH
Good 7.6

When offering drinks, the steward didn't give passengers enough time to make their selection. Offerred snack in the dark when most people were asleep. Understand that the attendants are trying to carry their tasks in a specific time frame but there must be a better way to serve your customers, such as announcing that snack can be brought to you upon your request.

JFK
TPE
Excellent 10.0

Their performance were great!

No bad experience encountered. Everything went smooth.

Fri, Feb 23
SEA
USM
30h 50m
Fri, Mar 2
USM
SEA
37h 40m
$1607
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Feb 25
SEA
USM
28h 10m
Mon, Mar 12
USM
SEA
23h 50m
$1305
Trip: 15 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
SGN
TPE
Excellent 10.0

Veggie food delicious

No

IAH
TPE
Excellent 10.0

Very much

SEA
TPE
Okay 5.3

The seats are way too close to each other. I’m 5 foot four and my knees touched this front

TPE
SFO
Excellent 9.0

Crew, boarding, services.

Food can be better.

ORD
TPE
Excellent 9.6

Eveyone was syper friendly and the food was decent. They were very good about allowing me to change seats to an open seat once the doors were closed.

The selection of movies to watch was not ver good. They had a few (10-15) choices for a few genre but over all there were obly 1 or 2 decent movies per genre.

Sat, Feb 24
SEA
USM
30h 45m
Tue, Mar 6
USM
SEA
33h 55m
$1635
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 26
SEA
USM
23h 45m
Wed, Jul 4
USM
SEA
24h 30m
$1361
Trip: 9 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
JFK
TPE
Excellent 10.0

Their performance were great!

No bad experience encountered. Everything went smooth.

HKG
TPE
Excellent 9.0

Crew services, boarding, on time

Food and seat can be better

MNL
TPE
Excellent 10.0

It was my first time flying with EVA. I have nothing bad to say. I will fly with them again and again.

None.

SEA
TPE
Okay 5.3

The seats are way too close to each other. I’m 5 foot four and my knees touched this front

TPE
HAN
Okay 5.6

We won’t fly Eva again.

Sat, Feb 24
SEA
USM
48h 35m
Fri, Mar 2
USM
SEA
36h 13m
$1995
Trip: 7 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 4071 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.4
Entertainment
8.2
Food
7.7
HKG
YVR
Good 7.6

Easy boarding, good entertainment. Great crew.

Long flight to easy to complain about something. But really no problems here

HKG
LAX
Mediocre 2.0

the person in front of me just laid down his seat for almost entire flight which made me to have no rooms people are switching seats without letting flight attendants to know. This is not fair for other customers

JFK
HKG
Excellent 8.0

Unable to do online check in, have to waste time to line up in the airport. Not all people need visa to enter a country, this is rediculous that I couldn’t proceed to check in online because I do not have visa to enter my own country. Rediculous

DEL
HKG
Mediocre 2.0

My mother has health issues. She is diabetic, and asked for Juice. Air hostess told her they don't have the permission to serve anything for certain period of time. They did not give her Juice, and she was not feeling well. I'll not choose this airline again. Food was ok too

SIN
HKG
Okay 5.0

I enjoyed the good check in service, and the excellent lounges. As always, the overall level of service on Cathay was good.

The utterly appalling seats on Cathay's old B777s are unacceptable for a premium airline. Non-reclining economy seats which are desperately uncomfortable for any flight of more than 1 hour, and completely unsuitable for an overnight flight. These planes desperately need a refit. Best avoided until this has been completed. The flight was overbooked, and the cabin crew seemed stressed and very busy. As a long term frequent flyer with CX, this was a very disappointing experience.

Thu, Jun 28
SEA
USM
37h 35m
Tue, Jul 3
USM
SEA
35h 05m
$1458
Trip: 6 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2330 reviews
Overall
8.8
Boarding
8.9
Comfort
8.6
Crew
9.0
Entertainment
8.7
Food
8.4
SFO
SIN
Excellent 8.0

Premium economy

SGN
SIN
Good 6.3

Nothing

My flight was delayed by 2 hours so I missed my connecting flight in Singapore. There was a huge queue of people who missed their connecting flight cos of an accident in the runway. The airline did nothing to prepare for this situation. It took hours to get another flight organised, communication was non existent and refreshments took ages to come. Airline didn't help with finding a hotel for stranded passengers.

SIN
LAX
Excellent 9.6

SQ did a great job again. I plan to fly them in the future.

My only criticism is that the flight attendants didn’t pass through the cabin with water during the 9 hour flight.

SIN
SFO
Okay 5.0

United miles.

Entertainment very poor, no selection, I took the flt in Jan and the movies and selection was sane in Feb. Bad. Food was so so.

LAX
NRT
Excellent 10.0

The seats are very comfortable. There was ample entertainment.

No complaints at all. They are very professional and I would chose them again.

Sat, Feb 24
SEA
USM
30h 45m
Sat, Mar 10
USM
SEA
34h 40m
$1816
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Feb 25
SEA
USM
27h 55m
Tue, Mar 6
USM
SEA
35h 20m
$1375
Trip: 10 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 4079 reviews
Boarding
8.8
Comfort
8.6
Crew
8.9
Entertainment
8.5
Food
8.3
IAH
TPE
Excellent 10.0

Very much

JFK
TPE
Excellent 10.0

Their performance were great!

No bad experience encountered. Everything went smooth.

SGN
TPE
Excellent 10.0

Veggie food delicious

No

TPE
SFO
Excellent 9.0

Crew, boarding, services.

Food can be better.

ORD
TPE
Excellent 9.6

Eveyone was syper friendly and the food was decent. They were very good about allowing me to change seats to an open seat once the doors were closed.

The selection of movies to watch was not ver good. They had a few (10-15) choices for a few genre but over all there were obly 1 or 2 decent movies per genre.

Fri, Feb 23
SEA
USM
27h 10m
Thu, Mar 8
USM
SEA
27h 10m
$1885
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews

Seattle/Tacoma Intl to Ko Samui Flight Information

Flights Arrive in Ko Samui
Flights Depart from Seattle/Tacoma Intl
Flight Price $956
Distance 7721 miles
Airlines Singapore Airlines, EVA Air, Cathay Pacific
*
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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.