Find Cheap Flights from Seattle/Tacoma Intl to Seoul Incheon Intl Airport (SEA - ICN)

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Good to Know

Low Season:
November
Best time to beat the crowds
3%
expected price decrease
High Season:
December
Most popular time to fly
1%
expected price increase
Average Price:
$1241
(avg. price over the last 2 weeks)
Good Deal:
$897
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Seoul Incheon Intl Airport

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 $897 or less.
The cheapest flight from Seattle/Tacoma Intl to Seoul Incheon Intl Airport was found 71 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 15% more expensive 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 Seattle/Tacoma Intl to Seoul Incheon Intl Airport Flights

How long does a flight from Seattle/Tacoma Intl to Seoul Incheon Intl Airport take?
An average nonstop flight takes 11h 59m, covering a distance of 5203 miles.
How many flights are there between Seattle/Tacoma Intl and Seoul Incheon Intl Airport?
There are 80 (nonstop) flights between Seattle/Tacoma Intl and Seoul Incheon Intl Airport per week, averaging 10 per day.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Seoul Incheon Intl Airport?
In the past 3 days, the cheapest round-trip tickets were found on XiamenAir ($411), Multiple Airlines ($624) and Delta ($973).
Do I need a passport to fly between Seattle/Tacoma Intl and Seoul Incheon Intl Airport?
Yes.
Which airlines fly most frequently between Seattle/Tacoma Intl and Seoul Incheon Intl Airport?
Thai Airways (2 times daily), Delta (2 times daily), Singapore 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 Incheon Intl Airport?
For Seattle/Tacoma Intl to Seoul Incheon Intl Airport, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul Incheon Intl Airport back to Seattle/Tacoma Intl, the best deals are generally found on Monday, with Saturday being the most expensive.

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

Airports
Origin
Seattle
$411
only
$411
Destination
Seoul
$411
only
$411
Fri, Mar 9
SEA
ICN
37h 55m
Thu, Mar 15
ICN
SEA
29h 50m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
YVR
XMN
Excellent 10.0

Seat were comfortable , staff friendly

The long layover

XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

XMN
YVR
Excellent 10.0

We left 13 mins late but landed 45 mins earlyearly

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

Tue, Apr 17
SEA
ICN
57h 15m
Wed, May 2
ICN
SEA
46h 55m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 20
SEA
ICN
38h 50m
Tue, May 1
ICN
SEA
29h 40m
Trip: 12 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

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!

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

XMN
LAX
Good 6.0

entertainment choices were good

XMN
CGK
Mediocre 2.0

Nobody could rearrange any flights for me, zero help!

Fri, Apr 13
SEA
ICN
38h 50m
Tue, May 15
ICN
SEA
29h 40m
Trip: 33 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

XMN
YVR
Excellent 10.0

We left 13 mins late but landed 45 mins earlyearly

LAX
XMN
Mediocre 2.0

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

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!

Sun, Feb 18
SEA
ICN
11h 59m
Thu, Feb 22
ICN
SEA
10h 39m
Trip: 5 days
8.9ExcellentShow reviews
Overall 8.9 Excellent
Based on 4 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
DTW
PVR
Excellent 8.6

Easy flight from check-in to boarding to deplaning.

Nothing really! No entertainment and nothing but almonds eaten.

MSP
CUN
Good 6.3

On time, pretty friendly crew

Too small a plane for that long a trip. Bathrooms were VERY small & rare.

JFK
CUN
Okay 4.0

The flight was delayed for 4 hours.

ORD
ATL
Excellent 10.0

My flight was great. Boarding was easy and the seats were comfortable.

TYS
ATL
Excellent 8.4

Everything went well...on time, quick boarding and free gate check of bag.

Fri, May 4
SEA
ICN
38h 50m
Sun, Jun 17
ICN
SEA
29h 40m
Trip: 45 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
XMN
LAX
Good 6.0

entertainment choices were good

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

Sat, Feb 10
SEA
ICN
12h 10m
Sun, Feb 25
ICN
SEA
10h 00m
$1039
Trip: 16 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 83 reviews
Boarding
8.4
Comfort
8.2
Crew
8.7
Entertainment
8.0
Food
8.1
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.

SEA
ICN
Okay 4.3

Broke my luggage. Twice in a row.

SEA
ICN
Okay 5.0

Delayed boarding and landing by an hour. Missed connection.

SEA
ICN
Excellent 10.0

Great meals and service.

Tue, Mar 20
SEA
ICN
35h 55m
Sat, Mar 31
ICN
SEA
30h 01m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jan 29
SEA
ICN
38h 15m
Thu, Feb 1
ICN
SEA
29h 50m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
LAX
XMN
Mediocre 2.0

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

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 :(

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

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!

Wed, Feb 28
SEA
ICN
38h 15m
Sun, Mar 4
ICN
SEA
30h 05m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

XMN
CGK
Mediocre 2.0

Nobody could rearrange any flights for me, zero help!

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!

HAK
XMN
Good 6.0

They cancelled my ticket I had to purchase my ticket again

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

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 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

XMN
YVR
Excellent 8.6

crew provide excellent and attentive service. food is good

food could be better

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!

YVR
XMN
Excellent 10.0

Seat were comfortable , staff friendly

The long layover

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

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 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
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 :(

HAK
XMN
Good 6.0

They cancelled my ticket I had to purchase my ticket again

XMN
CGK
Mediocre 2.0

Nobody could rearrange any flights for me, zero help!

NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

XMN
YVR
Excellent 10.0

We left 13 mins late but landed 45 mins earlyearly

Fri, Jun 15
SEA
ICN
38h 50m
Sun, Jun 24
ICN
SEA
29h 40m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 306 reviews
Overall
7.0
Boarding
7.1
Comfort
7.1
Crew
7.5
Entertainment
6.7
Food
6.8
NRT
XMN
Good 6.6

Crew working hard. Seat comfort and clean restroom.

Awful food. I basically not eating, going hungry.

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!

YVR
XMN
Excellent 10.0

Seat were comfortable , staff friendly

The long layover

BKK
XMN
Excellent 8.6

Nice wide seats, well run flight. Lots of food served, though very mixed quality. The unfortunate experiences described in the negatives of this review, do not repeat on the return flight.

In the fine print is the fact that the flight includes a stop in Shenzen. On the outbound flight this was a nightmare experience with Chinese immigration. Exhausted from a 14 hour flight, passengers had their passports taken away; were put through a bizarre 45 minute finger printing process using machines that did not work; and then left to wait for an hour or more with no information. The continuation flight was in another part of the airport - a very long walk; and it turned out not to be at the departing gate that was displayed on the monitors. We arrived at the indicated (wrong) gate with no guidance. Very nearly missed the continuation flight. Once in Xiamen, our arrival was late enough that the second floor of the airport was closed. There were no ATMs on the first floor; no way to get the Chinese cash needed to take a taxi to the airport. Fortunately a kind citizen agreed to exchange some cash, using mental calculations and sign language about the exchange rate.

XMN
LAX
Good 6.0

food is great

check in time is too long (about 1 hour)

Show more results

Seattle/Tacoma Intl to Seoul Incheon Intl Airport Flight Information

Avg. Flight Duration 11h 12m
Flights Arrive in Seoul Incheon Intl Airport
Flights Depart from Seattle/Tacoma Intl
Flight Price $411
Distance 5203 miles
Airlines XiamenAir, Delta, Asiana Airlines
*
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.

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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.