Find Cheap Flights from Seattle/Tacoma Intl to Seoul (SEA - SEL)

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Good to Know

Low Season:
February
Best time to beat the crowds
3%
expected price decrease
High Season:
June
Most popular time to fly
11%
expected price increase
Average Price:
$1188
(avg. price over the last 2 weeks)
Good Deal:
$872
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Seoul

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 $871 or less.
The cheapest flight from Seattle/Tacoma Intl to Seoul was found 61 days before departure, on average.
Book at least 4 weeks 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 February.
On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seattle/Tacoma Intl to Seoul Flights

How long does a flight from Seattle/Tacoma Intl to Seoul take?
An average nonstop flight takes 11h 30m, covering a distance of 5179 miles.
How many flights are there between Seattle/Tacoma Intl and Seoul?
There are 88 (nonstop) flights between Seattle/Tacoma Intl and Seoul per week, averaging 11 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Seoul?
In the past 3 days, the cheapest round-trip tickets were found on XiamenAir ($415), Multiple Airlines ($632) and Air China ($671).
Do I need a passport to fly between Seattle/Tacoma Intl and Seoul?
Yes.
Which airlines fly most frequently between Seattle/Tacoma Intl and Seoul?
Thai Airways (2 times daily), Delta (2 times daily), Asiana Airlines (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to Seoul?
For Seattle/Tacoma Intl to Seoul, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Seoul back to Seattle/Tacoma Intl, the best deals are generally found on Tuesday, with Friday being the most expensive.

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

Airports
Origin
Seattle
$415
only
$415
Destination
Seoul
$415
only
$415
$670
only
$670
Mon, Apr 30
SEA
ICN
38h 50m
Sun, May 6
ICN
SEA
29h 40m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 303 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.6
Food
6.8
XMN
YVR
Excellent 8.3

Two meals plus sandwich in between were enough to keep me from getting hungry.

Boarding line was too long. There was no grouping which means there was a bit of disorder. A check-in counter agent was super slow. Other agents had a supervisor watching over their shoulders so they were much more efficient. The flight ran out of hot tea... but got refilled later. Need more tea cuz most passengers were Chinese.

HAK
XMN
Good 6.0

They cancelled my ticket I had to purchase my ticket again

LAX
XMN
Mediocre 2.0

Nobody helped me switch my flight around, I hate you.

XMN
LAX
Good 6.0

entertainment choices were good

XMN
CGK
Mediocre 2.0

Nobody could rearrange any flights for me, zero help!

Tue, May 8
SEA
ICN
38h 15m
Tue, May 22
ICN
SEA
32h 09m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 17
SEA
ICN
36h 05m
Wed, May 2
ICN
SEA
21h 12m
Trip: 16 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3726 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
6.0
PEK
BKK
Excellent 8.0

The food was gross. The look and smell of it all was enough to make me just go hungry for the 5 hour flight. Airplane food is not for me.

SFO
PEK
Excellent 8.0

I loved all of the entertainment options. The music was relevant, the movies were movies I actually wanted to see, same goes for the TV shows. Also, I really liked that you could play games on there with other passangers.

The food was not very good at all. They didn't have any options besides chicken with rice or beef with noodles. Maybe I just don' t like airplane food and that wouldn't be any fault of Air China.

JFK
PEK
Mediocre 2.0

nothing

very irresponsible! & no English

PEK
SIN
Excellent 9.0

Crew service was excellent. Food choice and spread was nice and I was able to eat well despite not eating the chinese dishes.

I wish the food was american chinese - like PF chang !

BKK
PEK
Mediocre 2.6

Delay

Sat, Feb 3
SEA
ICN
28h 55m
Sun, Feb 11
ICN
SEA
13h 23m
Trip: 9 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20938 reviews
Overall
7.2
Boarding
7.3
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.4
YYC
LHR
Mediocre 3.6

Mix up with seating had boarding card reprinted twice and no one could explain why it happened. Staff otherwise were good.

YHZ
YUL
Excellent 8.6

Everything went very smoothly with this flight. It boarded on time. The crew were all very friendly. I enjoyed the entertainment selections and found a tv show that I had been wanting to see. I managed to watch 2 episodes and look forward to watching more of the same show on my flight back. I ended up having the 2 seats to myself which was great. Extra legroom. I have no complaints at all.

NRT
YVR
Okay 4.6

There was a horrid family in the row in frony of me that absolutley refused to control their child at all, even when airline staff stepped in , so a really long flight was made to seem even longer and sleeping was out of the question.

ICN
YYZ
Good 6.0

Business class seat

Mpvie choices are terrible. They don’t know what “new releases” mean.

FRA
YYC
Good 7.3

very inefficient boarding. Also had trouble booking seats in the 24 hours before the flight.

Mon, Mar 12
SEA
ICN
38h 15m
Tue, May 8
ICN
SEA
29h 40m
Trip: 58 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 303 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.6
Food
6.8
XMN
CGK
Mediocre 2.0

Nobody could rearrange any flights for me, zero help!

XMN
YVR
Excellent 10.0

We left 13 mins late but landed 45 mins earlyearly

YVR
XMN
Excellent 10.0

Seat were comfortable , staff friendly

The long layover

PEK
XMN
Excellent 10.0

I like the price but best of all the service and the attention given to us by all staff members.

Everything was great!

XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

Mon, Apr 16
SEA
ICN
38h 50m
Tue, May 8
ICN
SEA
29h 40m
Trip: 23 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 303 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.6
Food
6.8
XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

XMN
YVR
Excellent 10.0

We left 13 mins late but landed 45 mins earlyearly

XMN
LAX
Good 6.0

entertainment choices were good

XMN
YVR
Excellent 8.3

Two meals plus sandwich in between were enough to keep me from getting hungry.

Boarding line was too long. There was no grouping which means there was a bit of disorder. A check-in counter agent was super slow. Other agents had a supervisor watching over their shoulders so they were much more efficient. The flight ran out of hot tea... but got refilled later. Need more tea cuz most passengers were Chinese.

XMN
CGK
Mediocre 2.0

Nobody could rearrange any flights for me, zero help!

Wed, May 2
SEA
ICN
11h 50m
Wed, May 9
ICN
SEA
10h 10m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 82 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
SEA
ICN
Excellent 9.3

I like the access to charging my phone in the seat.

The food options were not very good this trip.

SEA
ICN
Excellent 9.6

Checkin was easy and quick. Crew everywhere was mostly courteous. A ground crew in incheon even called my hotel to request my shuttle from his own cell phone! Excellent service, and they were all gracious and helpful till then end! There was some difficulty in coming communicating in English but still I feel we were treated well. Thank you Asiana!

One thing I didn't like. My dad needed handicap assistance but he can walk, so we lined up to the side of the terminal where priority boarding will take place. As I saw crew members assisting and lining up wheelchaired passengers and approached one guy to tell him my dad needed wheelchair assistance, he dismissively looked at me and my dad and told me 'well if you want to sit on a wheelchair go sit on a wheelchair, and walked away assisting other passengers. that was so unhelpful! They were also very strict about weight AND size of carry on luggage, but inconsistently so though. With 2 kids and a handicapped dad, one of my cartons with a 'approved' tag was flagged at the gate and required to be checked in. As I didn't want any more hassle, I said yes so my daughter and I ended up with nonovernight clothes for our incheon stay.

SEA
ICN
Mediocre 2.0

Though not particularly personable, Flight attendants were generally efficient at their tasks. i.e. No mistakes with pre-arranged special meal requests.

1) The ground staff in SEA never said a single 'please' or 'thank you', let alone any eye contact or even a mere 'you're welcome' in response to my expressions of thanks; I was made to thoroughly feel like a mere transaction. Clearly, Asiana severely needs basic manner- training for its staff. (this isn't the 1st time I've experienced rudeness from Asiana staff, but I just ignored it & chucked it up to their tired busy working days.) 2) We sat on the tarmac for an hour, exactly. We departed 1 hour later than scheduled, despite a short connection, which they, themselves, scheduled into this flight! ...

SEA
ICN
Good 7.0

The flight attendants were polite and very attentive!

There was not any WiFi though it was advertised.

SEA
ICN
Okay 4.6

Flight departed and arrived almost two hours late. Unacceptable especially since it wasn’t mechanical but waited for a connecting flight. Now I may not be able to get a ride out of the airport and back to my camp in time for curfew.

Mon, Apr 30
SEA
GMP
19h 40m
Sun, May 6
GMP
SEA
21h 36m
Trip: 7 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 2980 reviews
Overall
8.8
Boarding
8.9
Comfort
8.5
Crew
9.1
Entertainment
8.4
Food
8.3
CTS
HND
Excellent 8.0

Great service and crew. Boarding was quick and efficient.

No personal inflight entertainment, but it wasn’t an issue with such a short flight from Sapporo to Tokyo.

NRT
SFO
Excellent 8.3

Not enough space to put my luggages

NRT
JFK
Mediocre 2.0

Nothing

First, I did an online check-in and was able to secure a seat for the first leg of the flight, but was able to get any information on my second leg. So when I arrived at the Thai Airways counter to load in my bags I asked the Thai Airways representative about the missing information. His response was that he could not get into the ANA system and that I have to go to the ANA counter to ask for that information. Given that my layover in Narita was only about 45mins landing to going to the gate, I was not comfortable with not knowing if I would be on that flight or not. The Thai Airways representation at the boarding counter did help me a bit and got in touch with a guide in Narita to help me get my luggages and get to gate properly. I wanted to note that we did not arrive in Narita on time due to the high air traffic so the plane had to circle around for 15 mins. When we finally landed I had about 15 mins to get through the custom and ran to my gate. When I received my ticket I was shocked that I got a middle seat on a 13 hours flight! If I have known this earlier I would have paid for a better seat, but since I was not able to check-in online and didn't receive any info about this flight prior to boarding I was not allowed to change on this full flight. In addition, the plane ride was awful. The food was disgusting and the seat was very uncomfortable. The seat did not even recline back! I don't expect much from a short distance flight but for a 13 hour long flight, I at least expect the seat to be slightly better than sitting on a rock against a brick wall. All in all, this was a HORRIFIC EXPERIENCE I went through. The stress and the discomfort on the plane was an experience that no one should ever feel while traveling. It was an awful nightmare on an ANA flight. I would like a refund on this flight with no exceptions. Sincerely, Jessica Saesue

BKK
NRT
Good 6.3

Food was not good, seats not comfy

LAX
NRT
Good 7.3

Great crews and good foot space!

Food was terrible! Getting worse every time !

Fri, Feb 16
SEA
ICN
25h 56m
Mon, Feb 26
ICN
SEA
30h 25m
$1023
Trip: 11 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 4374 reviews
Overall
6.4
Boarding
6.5
Comfort
6.4
Crew
6.8
Entertainment
6.1
Food
5.9
PVG
LAX
Good 7.3

The price was a bargain

Food was hit or miss. Travel time with layovers was very long

JFK
PVG
Okay 4.3

Nothing

Worst experience ever. 11 hour delay at JFK. No information given by staff at JFK. Missed connection in Shaghai. Took business class but was not admitted to Air France lounge.

JFK
PVG
Mediocre 3.6

Nothing

Flight was delayed two hour and I still Waiting for my 2 lugages. I will never use this company again .

ORD
PVG
Good 6.0

Need to improve thier communjcation skill.

PVG
CRK
Good 7.0

Seats did not recline. (Overnight flight.)

Fri, Feb 16
SEA
GMP
26h 26m
Mon, Feb 26
GMP
SEA
36h 20m
$1277
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 4077 reviews
Overall
7.1
Boarding
7.2
Comfort
7.0
Crew
7.5
Entertainment
6.7
Food
6.6
PEK
GMP
Mediocre 2.0

Awful service. Flight delayed almost every time. Terrible food.

CAN
LAX
Okay 4.6

Lounge over booked to crowded. Poor boarding procedures Poor baggage handling (No Priority!) No child control in business class cabins Entertainment old and diminishing options, very bad

DEL
CAN
Mediocre 2.0

nothing

worst food, service and we also didn't received our bags

LAX
CAN
Okay 4.3

Crew

Customer service sucks. The airline has no definite answer regarding our concerns.

CAN
LAX
Okay 4.0

Airline provided wheelchair for my injured friend and priority boarding

airline lost my friend's luggage and is only offering $15 per kg for the lost items

Wed, Apr 25
SEA
GMP
34h 25m
Wed, May 9
GMP
SEA
30h 24m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 19
SEA
GMP
34h 40m
Mon, Mar 26
GMP
SEA
24h 48m
Trip: 8 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3726 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
6.0
PEK
LAX
Good 6.0

restroom lines were less due to limited choice of drinks which turned out positive specially when flight was full.

Had to call agency for confirming seats as web was never successful despite many try's. Agency in Washington was v good and helped. on long haul flights the choice of entertainment is poor. food could have been better

PEK
LHW
Excellent 8.6

The crew

Entertainment

BOM
PEK
Good 6.0

restroom lines were less due to limited choice of drinks which turned out positive specially when flight was full.

Had to call agency for confirming seats as web was never successful despite many try's. Agency in Washington was v good and helped. on long haul flights the choice of entertainment is poor. food could have been better

HFE
PEK
Okay 4.0

no in flight entertainment, food was horrible

JFK
PEK
Mediocre 2.0

nothing

very irresponsible! & no English

Wed, Mar 7
SEA
GMP
22h 40m
Wed, Mar 21
GMP
SEA
26h 36m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 28
SEA
ICN
38h 15m
Thu, Mar 8
ICN
SEA
29h 50m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 303 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.6
Food
6.8
LAX
XMN
Mediocre 2.0

Nobody helped me switch my flight around, I hate you.

XMN
YVR
Excellent 10.0

We left 13 mins late but landed 45 mins earlyearly

XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

Thu, Jul 5
SEA
ICN
11h 30m
Sun, Jul 15
ICN
SEA
10h 30m
$1003
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 82 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
SEA
ICN
Excellent 9.3

I like the access to charging my phone in the seat.

The food options were not very good this trip.

SEA
ICN
Good 6.0

Food options terrible for Asian vegetarian

SEA
ICN
Excellent 10.0

Everything! Food, the seat, entertainment everything! I cannot ask for more. Plus points for the cabin crew of flight OZ271, they are the best! ❤️

None

SEA
ICN
Excellent 9.6

Checkin was easy and quick. Crew everywhere was mostly courteous. A ground crew in incheon even called my hotel to request my shuttle from his own cell phone! Excellent service, and they were all gracious and helpful till then end! There was some difficulty in coming communicating in English but still I feel we were treated well. Thank you Asiana!

One thing I didn't like. My dad needed handicap assistance but he can walk, so we lined up to the side of the terminal where priority boarding will take place. As I saw crew members assisting and lining up wheelchaired passengers and approached one guy to tell him my dad needed wheelchair assistance, he dismissively looked at me and my dad and told me 'well if you want to sit on a wheelchair go sit on a wheelchair, and walked away assisting other passengers. that was so unhelpful! They were also very strict about weight AND size of carry on luggage, but inconsistently so though. With 2 kids and a handicapped dad, one of my cartons with a 'approved' tag was flagged at the gate and required to be checked in. As I didn't want any more hassle, I said yes so my daughter and I ended up with nonovernight clothes for our incheon stay.

SEA
ICN
Okay 4.6

Flight departed and arrived almost two hours late. Unacceptable especially since it wasn’t mechanical but waited for a connecting flight. Now I may not be able to get a ride out of the airport and back to my camp in time for curfew.

Fri, Jun 29
SEA
ICN
38h 50m
Sun, Aug 26
ICN
SEA
29h 40m
Trip: 59 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 303 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.6
Food
6.8
XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

XMN
LAX
Good 6.0

entertainment choices were good

YVR
XMN
Excellent 10.0

Seat were comfortable , staff friendly

The long layover

LAX
XMN
Mediocre 2.0

Nobody helped me switch my flight around, I hate you.

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

Wed, Jun 20
SEA
ICN
12h 50m
Thu, Jul 12
ICN
SEA
21h 26m
$1042
Trip: 23 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20938 reviews
Overall
7.2
Boarding
7.3
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.4
LHR
YYC
Good 6.0

Food is tasteless and it is too crapped. No leg room on planes

NRT
YVR
Okay 4.6

There was a horrid family in the row in frony of me that absolutley refused to control their child at all, even when airline staff stepped in , so a really long flight was made to seem even longer and sleeping was out of the question.

ICN
YYZ
Good 6.0

Business class seat

Mpvie choices are terrible. They don’t know what “new releases” mean.

SMF
DEN
Mediocre 2.0

My flights were so behind I missed my connection for Toronto to Tel Aviv and was rerouted to London and then Frankfurt but the plane was late getting there as well. Air canada had no crew on the ground and over and hour wait for customer service on the phone so i had no way to find out what my reticketing status was. I was passed off to numerous other airlines and sent through the airport to the incorrect terminals in heathrow causing another missed flight. Air canada did not accept the responsibility to maintain my reservation and get me to my destination efficiently. Even when I spoke with a phone representative the person was rude and never sent confirmation of my flights so I had no reference point for flight numbers or air lines. All of his added up to more than 13 hours of delays on what was already a 24 hour trip. Worst travel experience of my life.

YVR
OGG
Good 6.3

Competent stewards/stewardesses

No meal?

Mon, Jul 2
SEA
ICN
38h 50m
Sun, Aug 26
ICN
SEA
29h 40m
Trip: 56 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 303 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.6
Food
6.8
HAK
XMN
Good 6.0

They cancelled my ticket I had to purchase my ticket again

XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

XMN
BKK
Mediocre 3.0

Crew from lax to xiamen were good they took care of my meal from xiamen to bkk . They offered me their food which was pretty generous of them

I called 24 hrs prior to my flight to ask for Vegetarian meal but that was not available... There was so much problem with food . And the toilets were very very dirty :(

XMN
LAX
Good 6.0

entertainment choices were good

PEK
XMN
Excellent 10.0

I like the price but best of all the service and the attention given to us by all staff members.

Everything was great!

Thu, Feb 1
SEA
GMP
33h 05m
Thu, Feb 15
GMP
SEA
18h 10m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 4
SEA
GMP
33h 05m
Fri, May 11
GMP
SEA
18h 45m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Seattle/Tacoma Intl to Seoul Flight Information

Avg. Flight Duration 11h 00m
Flights Arrive in Seoul
Flights Depart from Seattle/Tacoma Intl
Flight Price $415
Distance 5179 miles
Airlines XiamenAir, Air China, Air Canada, Asiana Airlines, ANA, China Eastern, China Southern
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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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.