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Find cheap flights from Seattle to South Korea from $473

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to South Korea departing on 7/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/1
Mon 7/8

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Best South Korea Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seoul
Incheon1 stop$908
Jeju City
Jeju City2 stops$1,486
Busan
Busan1 stop$910

Good to know

Low season

February

High season

October

Cheapest flight

$473
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Seattle to Incheon

FAQs - booking South Korea flights

  • Should I get a visa before I fly from Seattle to South Korea?

    To travel to South Korea, United States citizens only need to have a passport that is valid at the time of their entry. Until the end of 2024, there is no need to get a visa when you are traveling for tourism or business purposes to South Korea, as you are allowed to stay in the country for up to 90 days without a visa. Do remember to make sure your passport has one blank page for an entry stamp.

  • What do I need to know about child car seat laws when I am departing my airport destinations in South Korea?

    When you travel in a car with a child in South Korea, they need to travel in a car seat facing to the rear until they are two years old and then in a car seat facing forward until they are four years old. After that children must travel in a booster seat until they are either six years old or they weigh more than 80 lbs.

  • What are some reasons to upgrade to first class when traveling on Delta Air Lines?

    Flying first class with Delta Air Lines on a Seattle to South Korea flight provides a premium travel experience. Passengers relish spacious seating, gourmet dining, and personalized service. Exclusive amenities like priority boarding and lounge access make the journey luxurious and stress-free. Enhanced privacy, extra legroom, and in-flight entertainment guarantee a more relaxed and enjoyable experience for discerning travelers.

  • What is a good choice for a sustainable airline on the Seattle to South Korea route?

    Korean Air is committed to sustainability, implementing eco-friendly practices to reduce its environmental impact. The airline invests in fuel-efficient aircraft, adopts green technologies, and promotes waste reduction. Initiatives like carbon offset programs and sustainable practices in operations showcase Korean Air's dedication to environmental responsibility and a more sustainable future in aviation.

  • How does KAYAK find such low prices on flights from Seattle to South Korea?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to South Korea.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to South Korea?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to South Korea from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to South Korea?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to South Korea with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to South Korea?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to South Korea from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to South Korea

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Incheon $710 one-way - $1,140 round-trip
  • Morning departure is around 2% cheaper than an evening flight, on average*.
  • One of the most popular airport destinations in South Korea is Incheon International Airport (ICN). You can fly here from Seattle Tacoma International Airport (SEA) on a direct flight available aboard Delta Air Lines, Korean Air, and Asiana Airlines.
  • Another popular airport destination in South Korea is Gimhae International Airport (PUS). To make the trip here from Seattle Tacoma International Airport, a terrific flight option is to take a one-stop flight or Korean Air that has a layover at Incheon International Airport.
  • When you plan on traveling early in the morning from Seattle Tacoma International Airport to South Korea, you might consider spending the night before your flight at the Hilton Seattle Airport & Conference Center, which offers accessibility to the airport through both a sky bridge and an airport shuttle.
  • Another airport destination in South Korea that is very popular with travelers is Jeju International Airport (CJU). An easy way to get here from Seattle Tacoma International Airport is to travel on a one-stop flight that utilizes Delta Air Lines and China Eastern Airlines, with a layover at Shanghai Pudong International Airport (PVG).
  • When departing from Seattle Tacoma International Airport aboard Delta Air Lines, it is good to know that this airline offers one of its Delta Sky Club locations in Concourse A at the airport, which is a wonderful spot to wait for your flight to South Korea.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Seattle to South Korea

 
Need help choosing which airline to fly with from Seattle to South Korea? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.5
Korean AirOverall score based on 1142 reviews
8.6Boarding
8.8Crew
8.3Comfort
8.1Food
8.2Entertainment
Airline reviews

Overall, very uneventful and pleasant experience. Most importantly, no delays.

10.0 ExcellentAnonymous, May 2024SGN - ICN
Read more about Korean Air reviews

Overall, very uneventful and pleasant experience. Most importantly, no delays.

The flight crews were extremely professional, helpful, and courteous. Departure and arrival times were accurate. No delay. I will use K airline again. Thanks

We were seated at the back and that was very uncomfortable for me with the turbulence we experienced on our way to Chicago.

I enjoyed flying on Korean Air. The service was great and the food was yummy. They served white fish.

I enjoyed flying on Korean Air. The service was great and the food was yummy, especially the bibimbap and cold spicy noodles. The only thing that bummed me out on this red-eye flight was that my seat did not properly recline so I was not able to sleep.

On time and flight crew are always so happy to help and always smiling unlike other airlines.

Great crew, decent food Charging plugs were broken on both seats next to me. Only the USB port was available, and that charges, very, very slowly. Seat was also broken, it would not lock into position when reclining.

Korean Air had great service and the Bibimbap dish was the best airplane food I’ve ever had. It was a long flight so in between the two meals they served customers could get Shin ramen. The flight attendants let my children use a pair of nice headphones for the flight and had earbuds and slippers for all the adults. The flight was long but the time passed by relatively quickly because they have many great shows in their entertainment TV. I watched the BTS Love Yourself and Speak Yourself concerts 💜

Stewardess are nice. Food could have been better and should have a better dessert. They do not offer scotch or beer. You have to ask for it. I also was not happy that you do not serve ginger ale and or cranberry juice. This is my first time that an international flight do not have this. I go home overseas every year and when I travel through ANA, Delta, Qatar, JAL, Asiana Air, United Air. they all serve this two very famous drink. You do not have a great snack tray.

You did not put me on a Korean Air flight! so I do not have nothing to say

Seems like crew assumed you're korean. Not impressed by crew

One of the flight was delayed. The flight attendant of returning flight to LA was mean.

Flight attendants rude, they disappear for almost 3 hours not doing rounds to see what people needed. The laboratories were full of empty water cups, because they never come back to collect them.

Flew on an Airbus 350-900. Excellent aircraft properly cleaned and serviced. Flight crew was excellent plane departed and arrived on time. The A350 has excellent air circulation far better than the 777. I would recommend Asiana to anyone looking to fly in a clean comfortable environment. This is my second round trip flight from New York to Bangkok via Asiana and I will book Asiana again!

I could not choose my seat prior to check in

I had the most wonderful experience from CEB bag drop through deplaning. The staff, the aircraft, food, and cabin crew were all amazing. I want to give a kudos to Marky from Mactan Cebu's Asiana airport staff for his exceptional customer service and assistance.

JetBlue's check-in was great, but there was an in-flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'NO, bathrooms are locked! Go back to your seat!' The JetBlue flight was more than an hour delay, which made me almost miss my connecting flight with Asiana. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them more than 30 mins to get a hold of maintenance and for maintenance to get started. The Asiana flight and crew were wonderful, in general. They waited for us who were delayed from the previous flight before they took off and were very kind to take my checked baggage's info. Seats were a little uncomfortable for such long flight, but service and flight attendants were great! However, my 3 checked baggages are missing! They're lost somewhere in the transition. I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all still missing! I and the CEB airport crew have sent multiple emails to both JetBlue and Asiana, and neither has responded to any of our emails. Although, I was able to get in contact with JetBlue's Interline Department who confirmed that the bags were turned over to Asiana without confirmation details.

The full flat bed was not that comfortable, hard and lumpy., too much space wasted with those bulky walls and divisions instead of making the bed 3-4 inches wider. The compartment where you put your feet is like a shoebox, poor design. Toilets of A350 are just too small, sink is too small

Aside from a LOT of turbulence the flight was perfect! The flight crew was superb and the food was delicious!

The seats (legroom) are tight and chairs cushion is stiff (not comfortable). The crew was courteous, professional and friendly. There was no food / snack for this flight (very short flight, but still would be nice to provide some snack for the enjoyment).

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

My seat was broken I couldn’t put it back I have really bad back issues , the flight was 5 hours delayed and there was a drink dude harassing the entire flight

No food or entertainment because it was a short flight. Unfortunately the takeoff was delayed more than an hour

The flight left and arrived on time. the only food offered on the 5+ hour flight was a cheese sandwich. Unlike Alaska Airlines there was no information on the website regarding food at all or any option to purchasse in advance. Otherwise, it was an excellent flight.

Parents with kids should all be in the same area. Sounds rude but who what's to fly 6hrs with crying and bratty kids. Just my opinion.

Ok, so I didn’t have seats, so got there very early. I was first in line only to be told, listen for your name for seats. The flight was boarding before they gave me a middle seat, way after others showed up who were given more favorable treatment. Ok, so , don’t show up early and obey all the rules??? Clearly, your gate clerks did not. What gives???

Short flight but delayed. Since its a short flight no food or entertainment necessary

We had an awesome flight attendant who came by and made sure we were okay. Checked on us often and even shared some snacks that she had brought on, like edamame with chili and garlic seasoning. Yummy!

Overall good experience. I'm just over 6ft with long legs and legroom could be better, but is on par with other airlines. Only real negative was turbulence but that's not the airlines fault.

We were not given the seats we reserved. But helpful attendant at gate gave us very nice seats.

Having movies helps past time I wish going Vegas had something

A220 plane had 5 seats across which is great for couples who can snag the A&C seats. Seat itself is borderline comfortable but still tough on a 5+ hour flight. Overhead bins are small so if you're not in at least boarding group 5, you could be in trouble. No included food service. Non-alcoholic drinks are free but even the most basic snacks are for a charge. Price was reasonable for the only direct SEA-YUL flight. Boarding is efficient even managing passport checks. Worth flying for the direct flight.

The original flight from Boston to Toronto was canceled because of a mechanical failure. I was then scheduled on a flight to go from Boston to Montreal and then Montreal to Toronto. The flight was extremely full and I had to check my carry-on bag. When I actually got on the plane there appeared to be room for my bag. I understand the mechanical failures happen. But it was frustrating that they pestered me to check my bag when I don't believe it was necessary. Additionally, not just with Air Canada, modern airline seats are incredibly uncomfortable. There is considerable research that shows that the shape of them is poor for back health.

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

The flight was excellent the problem was that my luggage was damaged (zipper pulls ripped out) and it is difficult to contact the number to claim the damage while in another country and going back to the airport is not an option and no matter what I tried I got the same response to just call the number that is not possible for me to call in the first place. So very disappointed that I can’t claim such damage and that now I have to take part of my trip looking for a new luggage.

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Direct nonstop flight was great. Flight was delayed and the crew announced a 2h delay on the sound system. 30 min or so later I hear my name on the sound system for immediate board. Several other passangers were late too. Reason: The crew incorrectly announced a 2h delay when in reality they meant a new boarding time at 2pm.

Plenty of room in the exit row. Sat on the plane an hour before taking off.☹️ Landed late and had to wait for gate availability.

Flight was on time early arrival better entertainment good staff.everything was excellent

Delayed leaving. On arrival we were taken to the airstrip and had to get off onto an over crowed bus, not all that passengers fit. Drove around the airport for 20 + minutes. Taken off the bus told to go upstairs 3 flights then all the passengers had to walk a mile or more , those of us old there was no one to direct us to were to go. I asked several people with no answers. Once I got to baggage claim my bags were not on the right bag claim. Once again asked for help and finally someone found my bags on a different carasel. Very frustrating.

Book cheap flights from Seattle to South Korea

Recent round-trip flight deals

8/26Mon
1 stopChina Airlines
17h 30mSEA-ICN
9/16Mon
1 stopChina Airlines
14h 40mICN-SEA
$908
10/28Mon
1 stopChina Airlines
25h 25mSEA-PUS
11/12Tue
1 stopChina Airlines
23h 15mPUS-SEA
$910
10/2Wed
1 stopAir Canada
29h 00mSEA-ICN
10/23Wed
1 stopAir Canada
20h 20mICN-SEA
$1,051
10/1Tue
1 stopAir Canada
18h 15mSEA-ICN
10/24Thu
1 stopAir Canada
20h 20mICN-SEA
$1,055
9/3Tue
nonstopAsiana Airlines
11h 25mSEA-ICN
12/3Tue
nonstopAsiana Airlines
9h 45mICN-SEA
$1,216
8/26Mon
nonstopAsiana Airlines
11h 25mSEA-ICN
9/14Sat
nonstopAsiana Airlines
10h 30mICN-SEA
$1,221
10/29Tue
1 stopKorean Air
17h 00mSEA-PUS
11/12Tue
1 stopKorean Air
15h 30mPUS-SEA
$1,463
10/23Wed
1 stopKorean Air
14h 35mSEA-PUS
10/30Wed
1 stopKorean Air
15h 30mPUS-SEA
$1,464
11/27Wed
1 stopDelta
15h 05mSEA-PUS
12/2Mon
1 stopDelta
15h 30mPUS-SEA
$1,479
8/27Tue
2 stopsDelta
32h 13mSEA-PUS
9/3Tue
1 stopDelta
22h 05mPUS-SEA
$1,483

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Recent one-way flight deals

7/23Tue
2 stops
53h 05mSEA-ICN
$473
7/23Tue
3 stops
51h 35mSEA-ICN
$483
10/2Wed
nonstopAsiana Airlines
11h 25mSEA-ICN
$627
8/23Fri
nonstopAsiana Airlines
11h 25mSEA-ICN
$659
8/23Fri
1 stopAir Canada
29h 00mSEA-ICN
$660
10/9Wed
1 stopKorean Air
20h 51mSEA-ICN
$713
11/26Tue
1 stopAir Canada
14h 05mSEA-ICN
$746
9/2Mon
1 stopKorean Air
18h 50mSEA-ICN
$755
7/30Tue
1 stopDelta
16h 00mSEA-PUS
$993
7/30Tue
2 stopsDelta
21h 23mSEA-PUS
$998

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Last minute flights from Seattle to South Korea

Last minute flight, train and bus deals

6/5Wed
multi-stopTurkish Airlines
31h 00mSEA-ICN
6/12Wed
multi-stopTurkish Airlines
46h 20mICN-SEA
$1,202
6/3Mon
multi-stopTurkish Airlines
31h 00mSEA-ICN
6/11Tue
multi-stopTurkish Airlines
33h 25mICN-SEA
$1,207
6/2Sun
multi-stopAir Canada
29h 00mSEA-ICN
6/27Thu
multi-stopAir Canada
12h 34mICN-SEA
$1,789
6/6Thu
multi-stopAir Canada
18h 10mSEA-ICN
6/23Sun
multi-stopAir Canada
12h 34mICN-SEA
$1,826
6/2Sun
nonstopKorean Air
11h 40mSEA-ICN
6/6Thu
nonstopKorean Air
10h 40mICN-SEA
$1,893
6/2Sun
nonstopKorean Air
11h 40mSEA-ICN
6/6Thu
multi-stopKorean Air
21h 58mICN-SEA
$1,903
6/2Sun
multi-stopDelta
28h 00mSEA-ICN
6/6Thu
nonstopDelta
10h 15mICN-SEA
$1,933
6/4Tue
nonstopAsiana Airlines
11h 25mSEA-ICN
6/25Tue
multi-stopAsiana Airlines
20h 06mICN-SEA
$1,935
6/2Sun
multi-stopDelta
28h 00mSEA-ICN
6/6Thu
multi-stopDelta
16h 51mICN-SEA
$1,943
6/3Mon
nonstopAsiana Airlines
11h 25mSEA-ICN
6/11Tue
multi-stopAsiana Airlines
20h 06mICN-SEA
$1,990

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Seattle - South Korea Flights

Departure:

Seattle (SEA)United States

Return flight deals:

South Korea - Seattle

Cabin classes:

$1,697
$3,655
$2,569
$850