--- title: "Seoul (ICN) to Seattle (SEA) flights: who flies it" description: "Delta Air Lines, Alaska Airlines and 2 more airlines fly nonstop from ICN to SEA, about 29 flights a week. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/icn-sea" url: "https://2lnr.com/routes/icn-sea.md" date_modified: "2026-10-18T05:10:47Z" --- # Seoul to Seattle (ICN-SEA): nonstop upgrade & award space Korean Air, Delta Air Lines, Alaska Airlines, and Asiana Airlines fly nonstop between Seoul (ICN) and Seattle (SEA), roughly 29 times a week. The timetable below shows the nonstop scheduled at 9h 50m to 10h 14m for the 5,204 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 24, 2026. See ICN to SEA on the interactive map [Get started free](https://2lnr.com/login) 29 Flights a week, 4-week average 9h 50m to 10h 14m Scheduled flight time 5,204 mi Nonstop distance Free To get started ## Seoul to Seattle flight schedule Scheduled nonstop departures for ICN to SEA starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Seoul (ICN) to Seattle (SEA) | Date | Flight | Airline | Departs ICN | Arrives SEA | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | KE 41 | Korean Air | 16:40 | 10:40 | 10h | [Boeing 787-10 Dreamliner](https://2lnr.com/seatmaps/ke/787-10.md) | | Fri, Oct 23 | DL 196 | Delta Air Lines | 19:00 | 13:14 | 10h 14m | [Airbus A350-900](https://2lnr.com/seatmaps/dl/a350-900.md) | | Fri, Oct 23 | AS 120 | Alaska Airlines, Inc. | 19:35 | 13:40 | 10h 5m | Boeing 787-9 Dreamliner | | Fri, Oct 23 | KE 47 | Korean Air | 21:20 | 15:15 | 9h 55m | [Boeing 787-9 Dreamliner](https://2lnr.com/seatmaps/ke/787-9.md) | | Fri, Oct 23 | OZ 272 | Asiana Airlines | 21:20 | 15:15 | 9h 55m | [Boeing 777-200LR](https://2lnr.com/seatmaps/oz/777-200lr.md) | | Sat, Oct 24 | KE 41 | Korean Air | 16:40 | 10:40 | 10h | Boeing 787-10 Dreamliner | | Sat, Oct 24 | DL 196 | Delta Air Lines | 19:00 | 13:14 | 10h 14m | Airbus A350-900 | | Sat, Oct 24 | AS 120 | Alaska Airlines, Inc. | 19:35 | 13:40 | 10h 5m | Boeing 787-9 Dreamliner | | Sun, Oct 25 | KE 41 | Korean Air | 16:10 | 10:05 | 9h 55m | Boeing 787-10 Dreamliner | | Sun, Oct 25 | DL 196 | Delta Air Lines | 18:45 | 12:51 | 10h 6m | Airbus A350-900 | | Sun, Oct 25 | AS 120 | Alaska Airlines, Inc. | 20:00 | 13:55 | 9h 55m | Boeing 787-9 Dreamliner | | Sun, Oct 25 | OZ 272 | Asiana Airlines | 21:00 | 14:55 | 9h 55m | Boeing 777-200LR | | Sun, Oct 25 | KE 47 | Korean Air | 21:20 | 15:10 | 9h 50m | Boeing 787-9 Dreamliner | | Mon, Oct 26 | KE 41 | Korean Air | 16:10 | 10:05 | 9h 55m | Boeing 787-10 Dreamliner | | Mon, Oct 26 | DL 196 | Delta Air Lines | 18:45 | 12:51 | 10h 6m | Airbus A350-900 | | Mon, Oct 26 | AS 120 | Alaska Airlines, Inc. | 20:00 | 13:55 | 9h 55m | Boeing 787-9 Dreamliner | | Mon, Oct 26 | OZ 272 | Asiana Airlines | 21:00 | 14:55 | 9h 55m | Boeing 777-200LR | | Mon, Oct 26 | KE 47 | Korean Air | 21:20 | 15:10 | 9h 50m | Boeing 787-9 Dreamliner | | Tue, Oct 27 | KE 41 | Korean Air | 16:10 | 10:05 | 9h 55m | Boeing 787-10 Dreamliner | | Tue, Oct 27 | DL 196 | Delta Air Lines | 18:45 | 12:51 | 10h 6m | Airbus A350-900 | | Tue, Oct 27 | OZ 272 | Asiana Airlines | 21:00 | 14:55 | 9h 55m | Boeing 777-200LR | | Tue, Oct 27 | KE 47 | Korean Air | 21:20 | 15:10 | 9h 50m | Boeing 787-9 Dreamliner | | Wed, Oct 28 | KE 41 | Korean Air | 16:10 | 10:05 | 9h 55m | Boeing 787-10 Dreamliner | | Wed, Oct 28 | DL 196 | Delta Air Lines | 18:45 | 12:51 | 10h 6m | Airbus A350-900 | | Thu, Oct 29 | KE 41 | Korean Air | 16:10 | 10:05 | 9h 55m | Boeing 787-10 Dreamliner | | Thu, Oct 29 | DL 196 | Delta Air Lines | 18:45 | 12:51 | 10h 6m | Airbus A350-900 | | Thu, Oct 29 | AS 120 | Alaska Airlines, Inc. | 20:00 | 13:55 | 9h 55m | Boeing 787-9 Dreamliner | | Thu, Oct 29 | OZ 272 | Asiana Airlines | 21:00 | 14:55 | 9h 55m | Boeing 777-200LR | | Thu, Oct 29 | KE 47 | Korean Air | 21:20 | 15:10 | 9h 50m | Boeing 787-9 Dreamliner | Showing all 29 scheduled ICN to SEA departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every ICN to SEA date on the interactive map ## Aircraft on the Seoul to Seattle nonstop In the schedule table on this page, Korean Air flies the [Boeing 787-10 Dreamliner](https://2lnr.com/seatmaps/ke/787-10.md) and the [Boeing 787-9 Dreamliner](https://2lnr.com/seatmaps/ke/787-9.md). Delta Air Lines flies the [Airbus A350-900](https://2lnr.com/seatmaps/dl/a350-900.md). Alaska Airlines flies the Boeing 787-9 Dreamliner. Asiana Airlines flies the [Boeing 777-200LR](https://2lnr.com/seatmaps/oz/777-200lr.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on ICN to SEA departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines, segment by segment and date by date. Open the calendar for Seoul to Seattle to see which departures have space, the next 14 days free on every product and the full horizon on Pro. In the 7 days to October 19, 2026, 2LNR checked award space on Seoul to Seattle departures from October 19 to November 1. Delta Air Lines had space open on 14 of 14 dates checked and Alaska Airlines on 0 of 10. ### See real availability Confirmed upgrade or award seats by date on the ICN to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See ICN to SEA on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Seoul to Seattle nonstop Carriers operating ICN to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Korean Air (KE) route map](https://2lnr.com/routes/airlines/ke.md)\ [The aircraft KE flies](https://2lnr.com/seatmaps/ke.md) - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) - [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\ [The aircraft AS flies](https://2lnr.com/seatmaps/as.md) - [Asiana Airlines (OZ) route map](https://2lnr.com/routes/airlines/oz.md)\ [The aircraft OZ flies](https://2lnr.com/seatmaps/oz.md) See ICN to SEA on the interactive map → ## Frequently asked questions about ICN to SEA **How long is the flight from Seoul (ICN) to Seattle (SEA)?** Scheduled flight times from Seoul (ICN) to Seattle (SEA) run from 9h 50m to 10h 14m across the departures in the schedule table on this page. The nonstop covers about 5,204 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from ICN to SEA?** Korean Air, Delta Air Lines, Alaska Airlines, and Asiana Airlines fly ICN to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines. **How many flights a week are there from ICN to SEA?** About 29 nonstop flights a week run between Seoul (ICN) and Seattle (SEA) in the current schedule, operated by Korean Air, Delta Air Lines, Alaska Airlines, and Asiana Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from ICN to SEA depart?** Scheduled ICN to SEA nonstops in the next 7 days with service leave between 16:10 and 21:20, local time at Seoul. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate ICN to SEA nonstop?** In the schedule table on this page, ICN to SEA nonstops fly as KE 41 and KE 47 on Korean Air; DL 196 on Delta Air Lines; AS 120 on Alaska Airlines; and OZ 272 on Asiana Airlines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on ICN to SEA?** Open the ICN to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines and Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [SEA to ICN upgrade and award space](https://2lnr.com/routes/sea-icn.md). Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md) or [Alaska Airlines award availability](https://2lnr.com/awards/as.md). Looking beyond this route? See [every route from Seoul (ICN)](https://2lnr.com/routes/icn.md), or [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md). Nonstops from Seoul (ICN) to other airports within 150 miles of Seattle (SEA): - [Seoul (ICN) to Vancouver (YVR)](https://2lnr.com/routes/icn-yvr.md), 127 miles from SEA Distances are great-circle between the airports, not driving distance. - [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss ICN to SEA upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)