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$404+ Cheap flights from Seattle (SEA) to Seoul (SEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SEL
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Seoul are usually found in November or January, booked 74 days in advance, depart on a Thursday or Sunday and return on a Tuesday

Cheap flight deals from Seattle to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

November

Round-trip from

$864
(Justfly.com)

One-way from

$404
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Seoul (SEL) flights.
Search Deals
High demand for flights, 21% potential price rise
Search Deals
Best time to find cheap flights, 15% potential price drop
Search Deals
From Seattle/Tacoma Intl to Seoul (SEL)
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One-way flight from Seattle/Tacoma Intl to Seoul (SEL)
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Find flight deals from Seattle to Seoul

Cheapest flights from Seattle to Seoul
Explore the most affordable flight options available from Seattle to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/75:15 amSEA - ICN
2 stops24h 35mMultiple Airlines
Wed 12/117:25 amICN - SEA
3 stops33h 45mMultiple Airlines
Deal found 11/20$900
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/201:55 pmSEA - ICN
1 stop22h 45mUnited Airlines
Wed 11/276:00 pmICN - SEA
1 stop22h 44mUnited Airlines
Deal found 11/19$903
This Air Canada deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/237:15 pmSEA - ICN
1 stop28h 30mAir Canada
Thu 12/126:20 pmICN - SEA
1 stop13h 05mAir Canada
Deal found 11/19$909
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/201:16 amSEA - ICN
1 stop22h 29mAmerican Airlines
Thu 2/206:50 pmICN - SEA
1 stop23h 07mAmerican Airlines
Deal found 11/20$916
This WhyPayMore deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2711:00 amSEA - ICN
Nonstop11h 55mKorean Air
Wed 12/48:05 pmICN - SEA
Nonstop10h 08mKorean Air
Deal found 11/20$921
This Jettzy deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:45 pmSEA - ICN
Nonstop12h 05mAsiana Airlines
Tue 12/176:15 pmICN - SEA
Nonstop9h 40mAsiana Airlines
Deal found 11/19$938
This Gotogate deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/310:35 amSEA - GMP
2 stops18h 55mANA
Tue 12/1712:25 pmGMP - SEA
2 stops23h 00mANA
Deal found 11/19$982
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2910:35 amSEA - ICN
Nonstop12h 40mDelta
Tue 12/108:05 pmICN - SEA
Nonstop10h 08mDelta
Deal found 11/19$1,026
This oojo deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/37:00 pmSEA - ICN
1 stop45h 05mTurkish Airlines
Mon 12/912:10 amICN - SEA
1 stop33h 55mTurkish Airlines
Deal found 11/20$1,027
This WhyPayMore deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2612:10 amSEA - ICN
1 stop17h 20mEVA Air
Wed 12/47:45 pmICN - SEA
1 stop15h 25mEVA Air
Deal found 11/20$1,066
This Gotogate deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2412:10 amSEA - ICN
1 stop26h 05mChina Airlines
Sun 12/812:25 pmICN - SEA
1 stop22h 50mChina Airlines
Deal found 11/20$1,084
This ANA deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/303:40 pmSEA - GMP
1 stop26h 40mMultiple Airlines
Tue 12/1012:25 pmGMP - SEA
2 stops25h 44mMultiple Airlines
Deal found 11/20$1,085

Find flights from Seattle to Seoul within your budget

Customize your flight search to find flights from Seattle to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 2/12

5:45 am-3:15 pm

1 stop16h 30m

Incheon Intl

Fri 2/28

4:55 pm-2:30 pm

1 stop14h 35m

$864

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 1/14

5:55 pm-12:20 pm

2 stops25h 25m

Incheon Intl

Fri 1/31

8:10 am-5:00 pm

2 stops25h 50m

$896

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 1/8

3:25 pm-5:40 am

1 stop21h 15m

Incheon Intl

Fri 1/31

6:00 pm-7:08 pm

1 stop18h 08m

$902

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 3/1

12:43 am-4:45 pm

1 stop23h 02m

Incheon Intl

Tue 3/11

5:50 pm-9:19 pm

1 stop19h 29m

$916

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 2/12

12:45 pm-5:50 pm

Nonstop12h 05m

Incheon Intl

Sat 2/22

6:15 pm-10:55 am

Nonstop9h 40m

$926

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 2/5

11:00 am-3:55 pm

Nonstop11h 55m

Incheon Intl

Wed 2/12

4:10 pm-9:00 am

Nonstop9h 50m

$942

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 3/17

1:10 am-11:20 am

1 stop18h 10m

Incheon Intl

Tue 4/8

12:35 pm-7:30 pm

1 stop22h 55m

$964

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 3/2

7:00 pm-9:05 am

1 stop45h 05m

Incheon Intl

Mon 3/10

12:10 am-6:05 pm

1 stop33h 55m

$968

SeattleSeoul

SEA - GMP

SEAGMP

Seattle/Tacoma Intl

Mon 4/7

4:40 pm-11:05 am

1 stop26h 25m

Seoul Gimpo Intl

Wed 5/7

12:40 pm-6:27 pm

2 stops21h 47m

$977

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 1/6

10:45 am-4:15 pm

Nonstop12h 30m

Incheon Intl

Mon 1/27

8:05 pm-1:30 pm

Nonstop10h 25m

$989

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 31 results
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Compare providers for flights from Seattle to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Seoul in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Seoul flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Seoul flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Seoul flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Seoul

Get recent, data-driven insights about flights from Seattle to Seoul including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Seoul. Price data was last updated on November 15, 2024.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Seoul?

Currently, October is the cheapest month in which you can book a flight from Seattle to Seoul (average of $1,102). Flying from Seattle to Seoul in June is currently the most expensive (average of $1,708). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to SEL?

Find hourly flight availability from Seattle to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

It’s optimal to fly from Seattle to Seoul in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Seattle to Seoul?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Seoul. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Seattle to Seoul flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Seoul

Explore weekly flight availability from Seattle to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from SEA to SEL are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated November 20, 2024.
Read through reviews of airlines operating flights from Seattle to Seoul, such as Air Canada, United Airlines and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,024 reviews

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Korean Air
8.5
Very good
1,024 reviews
Korean Air
8.5
Very good
1,024 reviews

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

EVA Air
8.4
Very good
1,308 reviews
Korean Air
8.5
Very good
1,024 reviews

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

ANA
8.4
Very good
833 reviews
Korean Air
8.5
Very good
1,024 reviews

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Japan Airlines
8.3
Very good
1,460 reviews
Korean Air
8.5
Very good
1,024 reviews

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Asiana Airlines
8.3
Very good
476 reviews
Korean Air
8.5
Very good
1,024 reviews

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Reviews

1 / 10

Ticket counter agent need to be more patient. Food was not good. It was not good like in the past.. Cabin was too hot.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Seoul?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Seoul. You should not have trouble finding flights to Seoul from Seattle/Tacoma Intl; the airport handles an average of 9 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 9 airlines have flights from the Seattle airport to Seoul. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How popular is this Seattle to Seoul flight route?

    Within the past month, 228 users have taken a look at flights from Seattle/Tacoma Intl to Seoul.

  • What are the cheapest airlines flying from Seattle to Seoul round-trip?

    Air Canada, at $864, was found to be the cheapest airline from Seattle to Seoul.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Air Canada is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Seoul one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $461. Asiana Airlines flights start at $500 while deals on United Airlines start at $506 one-way.

  • What are the most reliable airlines from Seattle to Seoul?

    No one likes to see their flight delayed. When booking a flight from Seattle to Seoul consider choosing Korean Air (69%), Delta (57%) or Etihad Airways (53%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Seoul?

    Looking for the cheapest flight from Seattle to Seoul? While on average our users pay $1,526, our data indicates the cheapest price to be $420. The most popular route (Seattle/Tacoma Intl - Incheon Intl), is priced around $889.

  • Can I find deals for flights from Seattle to Seoul that include hotel bookings?

    Yes. In addition to deals on Seattle to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Seoul.

  • Can I find deals for business class flights from Seattle to Seoul?

    Yes. Cheapflights offers flight deals from Seattle to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Seoul?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Seoul (average of $1,102). Flying from Seattle to Seoul in June is currently the most expensive (average of $1,708). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Seattle to Seoul

Discover the top 9 airlines that operate flights from Seattle to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$600Average$813FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$769Average$1,477FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$852Average$1,025FlexibilityNo cancel feeOn-time67%
China AirlinesCheapest$856Average$945FlexibilityNo cancel feeOn-time70%
DeltaCheapest$959Average$1,416FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$970Average$1,150FlexibilityNo cancel feeOn-time77%
EVA AirCheapest$1,027Average$1,247FlexibilityNo cancel feeOn-time74%
Asiana AirlinesCheapest$1,027Average$1,298FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,056Average$1,370FlexibilityNo cancel feeOn-time81%
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