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$340+ Cheap flights from Incheon Intl (ICN) to Washington

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SEA
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheap flight deals from Incheon Intl to Washington

Keep the following information in mind while searching for Incheon Intl to Washington flight deals. Data was last updated abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$445
(WhyPayMore)

One-way from

$340
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$777

Good round-trip deal

$698 or less

Good one-way deal

$603 or less
Provider with most accurate pricing for Seoul (SEL)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Seattle/Tacoma Intl flights.
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From Incheon Intl to Washington
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One-way flight from Incheon Intl to Washington
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Highest demand for flights based on searches. 24% potential increase in price ($294 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Incheon Intl to Washington.
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Price to beat on a one-way flight from Incheon Intl to Washington.
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Find flight deals from Incheon Intl to Washington

Cheapest flights from Incheon Intl to Washington
Explore the most affordable flight options available from Incheon Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 17, 2025.

This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/105:45 pmICN - SEA
1 stop31h 36mAir Canada
mié. 9/172:55 pmSEA - ICN
1 stop33h 10mAir Canada
Deal found 4/17$440
This WhyPayMore deal was found by Cheapflights users on 4/17. 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.
vie. 10/105:45 pmICN - PDX
1 stop13h 01mAir Canada
dom. 10/197:40 pmPDX - ICN
1 stop28h 25mAir Canada
Deal found 4/17$445
This Korean Air deal was found by Cheapflights users on 4/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/117:20 pmICN - SEA
Nonstop10h 15mKorean Air
mié. 5/1412:40 pmSEA - ICN
Nonstop11h 50mKorean Air
Deal found 4/17$485
This United Airlines deal was found by Cheapflights users on 4/17. 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.
vie. 5/1611:30 amICN - SEA
2 stops26h 27mUnited Airlines
mié. 9/246:45 amSEA - ICN
2 stops29h 35mUnited Airlines
Deal found 4/17$489
This United Airlines deal was found by Cheapflights users on 4/17. 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.
jue. 9/184:50 pmICN - PDX
1 stop17h 46mUnited Airlines
lun. 9/227:00 amPDX - ICN
2 stops29h 20mUnited Airlines
Deal found 4/17$518
This WhyPayMore deal was found by Cheapflights users on 4/17. 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.
lun. 5/196:20 pmICN - SEA
Nonstop10h 10mAsiana Airlines
vie. 5/302:15 pmSEA - ICN
Nonstop11h 40mAsiana Airlines
Deal found 4/17$521
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/196:20 pmICN - SEA
1 stop19h 40mMultiple Airlines
sáb. 5/317:00 amSEA - ICN
1 stop21h 30mMultiple Airlines
Deal found 4/17$579
This Delta deal was found by Cheapflights users on 4/17. 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.
lun. 5/197:20 pmICN - SEA
Nonstop10h 15mDelta
dom. 6/156:15 amSEA - ICN
1 stop19h 05mDelta
Deal found 4/17$585
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/106:20 pmICN - PDX
1 stop16h 36mMultiple Airlines
sáb. 5/1710:46 amPDX - ICN
1 stop17h 44mMultiple Airlines
Deal found 4/17$629
This Delta deal was found by Cheapflights users on 4/17. 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.
lun. 5/197:20 pmICN - PDX
1 stop33h 21mDelta
jue. 6/268:02 pmPDX - ICN
1 stop28h 28mDelta
Deal found 4/17$650
This Korean Air deal was found by Cheapflights users on 4/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/132:30 pmICN - PDX
1 stop17h 38mKorean Air
dom. 5/185:06 pmPDX - ICN
1 stop32h 44mKorean Air
Deal found 4/17$667
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/189:25 pmICN - PDX
1 stop16h 25mAlaska Airlines
vie. 4/258:05 amPDX - ICN
1 stop18h 55mAlaska Airlines
Deal found 4/17$950

Cheapflights Fare Finder

Customize your flight search to find flights from Incheon Intl to Washington 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 2,558,603 searches. Data last updated abril 17, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Washington that are best for you.

Fly from

Incheon Intl

Fly to

Washington

Route

Depart

Return

Price

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

vie. 10/10

5:45 pm-2:46 pm

1 stop13h 01m

Portland

dom. 10/19

7:40 pm-4:05 pm

1 stop28h 25m

$445

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

dom. 5/11

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

mié. 5/14

12:40 pm-4:30 pm

Nonstop11h 50m

$485

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

vie. 5/16

11:30 am-9:57 pm

2 stops26h 27m

Seattle/Tacoma Intl

mié. 9/24

6:45 am-4:20 am

2 stops29h 35m

$489

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

jue. 9/18

4:50 pm-6:36 pm

1 stop17h 46m

Portland

lun. 9/22

7:00 am-4:20 am

2 stops29h 20m

$518

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

sáb. 5/10

6:20 pm-12:30 pm

Nonstop10h 10m

Seattle/Tacoma Intl

dom. 5/18

2:15 pm-5:55 pm

Nonstop11h 40m

$519

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

lun. 5/12

5:45 pm-2:13 pm

1 stop12h 28m

Seattle/Tacoma Intl

vie. 5/23

5:30 am-4:05 pm

1 stop18h 35m

$554

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

lun. 5/19

6:20 pm-10:00 pm

1 stop19h 40m

Seattle/Tacoma Intl

sáb. 5/31

7:00 am-8:30 pm

1 stop21h 30m

$579

IncheonSeattle

ICN - SEA

ICNSEA

Incheon Intl

sáb. 5/10

7:20 pm-1:35 pm

Nonstop10h 15m

Seattle/Tacoma Intl

dom. 5/18

6:15 am-5:20 pm

1 stop19h 05m

$582

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

sáb. 5/10

6:20 pm-6:56 pm

1 stop16h 36m

Portland

sáb. 5/17

10:46 am-8:30 pm

1 stop17h 44m

$629

IncheonPortland

ICN - PDX

ICNPDX

Incheon Intl

lun. 5/19

7:20 pm-12:41 pm

1 stop33h 21m

Portland

jue. 6/26

8:02 pm-4:30 pm

1 stop28h 28m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 43 results
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Best time to book a flight from Incheon Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Incheon Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Washington

What is the cheapest month to book a flight from Incheon Intl Airport to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Incheon Intl Airport to State of Washington (average of $238). Flying from Incheon Intl Airport to State of Washington in July is currently the most expensive (average of $411). 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 ICN to WA?

Find hourly flight availability from Incheon Intl to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 17, 2025.

When flying from Incheon Intl Airport to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Incheon Intl Airport to State of Washington

Explore weekly flight availability from Incheon Intl to Washington. 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 abril 17, 2025.

The most flights from ICN to USWA are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated abril 17, 2025.
See what other customers who have flown with EVA Air, Korean Air and China Airlines from Seoul to Washington have to say. 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.
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,177 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,064 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very good
729 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Asiana Airlines
8.2
Very good
438 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Hainan Airlines
8.1
Very good
37 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

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

  • How popular is this Incheon Intl Airport to State of Washington flight route?

    This flight path from Incheon Intl to Washington was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Incheon Intl Airport to State of Washington one-way?

    The cheapest airlines for a one-way flight from Incheon Intl Airport to State of Washington are American Airlines ($393), WestJet ($546), and EVA Air ($548).

  • What are the most popular routes from Incheon Intl Airport to State of Washington?

    Most travelers choose Incheon Intl - Seattle/Tacoma Intl, Incheon Intl - Portland or Incheon Intl - Spokane when deciding on the best route from Incheon Intl Airport to State of Washington.

  • What are the most reliable airlines from Incheon Intl Airport to State of Washington?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Incheon Intl Airport to State of Washington on time: Delta (58%), Korean Air (58%), Thai Airways (34%).

  • What are the cheapest flights from Incheon Intl Airport to State of Washington?

    On average you can expect to pay $1,423 for a flight from Incheon Intl Airport to State of Washington. The cheapest flight overall is $470 while the most popular route, (Incheon Intl - Seattle/Tacoma Intl) is currently priced at $483.

  • Can I find deals for flights from Incheon Intl to Washington that include hotel bookings?

    Yes. In addition to deals on Incheon Intl to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Incheon Intl to Washington?

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

  • Can I find deals for business class flights from Incheon Intl to Washington?

    Yes. Cheapflights offers flight deals from Incheon Intl to Washington 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 Incheon Intl Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Incheon Intl Airport to State of Washington (average of $238). Flying from Incheon Intl Airport to State of Washington in July is currently the most expensive (average of $411). 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.

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Alternative routes for Incheon Intl to Washington

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Top 6 airlines flying from Incheon Intl to Washington

Discover the top 6 airlines that operate flights from Incheon Intl to Washington. 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 2,558,603 searches. Data last updated abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$474Average$752FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$516Average$868FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$538Average$718FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$555Average$1,146FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$642Average$995FlexibilityNo cancel feeOn-time76%
DeltaCheapest$667Average$1,106FlexibilityNo cancel feeOn-timeN/A

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