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Cheap Flights from Seoul to Seattle (ICN-SEA)
Prices were available within the past 7 days and start at $463 for one-way flights and $481 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Frequently asked questions
Travel information
Travel information
Origin airport | Incheon Intl. |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Air Canada, Air China, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Hainan Airlines, Hawaiian Airlines, Japan Airlines, Korean Air, Philippine Airlines, United, WestJet |
Roundtrip price | $481 |
Distance | 5203 mi |
Book with confidence
Book with confidence
The cheapest times to fly from Seoul to Seattle
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Seattle are during the month of October. You can find some of the cheapest flights from Seoul to Seattle with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Seoul to Seattle
Sunday is one of the best days to book for cheap flights from Seoul to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Seoul to Seattle
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $463 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
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Flights
- Air China
- American Airlines
- China Southern Airlines
- EVA Airways
- Japan Airlines
- Philippine Airlines
- Hawaiian Airlines
- Korean Air
- United
- Alaska Airlines
- Air Canada
- Asiana Airlines
- Delta
- Cathay Pacific
- China Eastern Airlines
- China Airlines
- Korean Air Seoul (ICN) to Honolulu (HNL) flights
- Korean Air Seoul (ICN) to New York (JFK) flights
- Asiana Airlines Seoul (ICN) to Tokyo (NRT) flights
- Alaska Airlines Minneapolis (MSP) to Seattle (SEA) flights
- Alaska Airlines Orange County (SNA) to Seattle (SEA) flights
- Alaska Airlines Chicago (ORD) to Seattle (SEA) flights
- Alaska Airlines Denver (DEN) to Seattle (SEA) flights
- Alaska Airlines Boston (BOS) to Seattle (SEA) flights
- Alaska Airlines San Diego (SAN) to Seattle (SEA) flights
- Alaska Airlines Los Angeles (LAX) to Seattle (SEA) flights
- Alaska Airlines Newark Liberty Intl. Airport (EWR) to Seattle (SEA) flights
- Alaska Airlines New York (JFK) to Seattle (SEA) flights
- Alaska Airlines Phoenix (PHX) to Seattle (SEA) flights
- Asiana Airlines Seoul (ICN) to Los Angeles (LAX) flights
- Flights from Seoul (ICN) to Bangkok (BKK)
- Flights from Dallas (DFW) to Chicago (ORD)
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- Flights from Atlanta (ATL) to Las Vegas (LAS)
- Flights from Chicago (ORD) to Las Vegas (LAS)
- Flights from Houston (IAH) to Las Vegas (LAS)
- Flights from Newark Liberty Intl. Airport (EWR) to Las Vegas (LAS)
- Flights from New York (NYC) to Las Vegas (LAS)
- Flights from Los Angeles (LAX) to Las Vegas (LAS)
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- Flights from Seattle (SEA) to Las Vegas (LAS)
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- Flights from Philadelphia (PHL) to Orlando (MCO)
- Flights from Seoul (ICN) to Bangkok (DMK)
- Flights from Seoul (ICN) to Newark Liberty Intl. Airport (EWR)
- Flights from Seoul (ICN) to Honolulu (HNL)
- Flights from Seoul (ICN) to Hong Kong (HKG)
- Flights from Dallas (DFW) to Denver (DEN)
- Flights from Seoul (ICN) to New York (LGA)
- Flights from New York (NYC) to Atlanta (ATL)
- Flights from Seoul (ICN) to Sapporo (CTS)
- Flights from Los Angeles (LAX) to Seattle (SEA)
- Flights from Newark Liberty Intl. Airport (EWR) to Seattle (SEA)
- Flights from Houston (IAH) to Seattle (SEA)
- Flights from New York (JFK) to Seattle (SEA)
- Flights from Denver (DEN) to Seattle (SEA)
- Flights from Dallas (DAL) to Seattle (SEA)
- Flights from Boston (BOS) to Seattle (SEA)
- Flights from Phoenix (PHX) to Seattle (SEA)
- Flights from San Diego (SAN) to Seattle (SEA)
- Flights from Minneapolis (MSP) to Seattle (SEA)
- Flights from Chicago (ORD) to Seattle (SEA)
- Flights from Orange County (SNA) to Seattle (SEA)
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