--- title: "Raleigh/Durham to Seattle flights: who flies RDU-SEA" description: "Alaska Airlines and Delta Air Lines fly nonstop from RDU to SEA, about 14 flights a week. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/rdu-sea" url: "https://2lnr.com/routes/rdu-sea.md" date_modified: "2026-10-18T05:10:47Z" --- # Raleigh/Durham to Seattle (RDU-SEA): nonstop upgrade & award space Alaska Airlines and Delta Air Lines fly nonstop between Raleigh/Durham (RDU) and Seattle (SEA), roughly 14 times a week. The timetable below shows the nonstop scheduled at 5h 49m to 5h 57m for the 2,349 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines 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 23, 2026. See RDU to SEA on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 5h 49m to 5h 57m Scheduled flight time 2,349 mi Nonstop distance Free To get started ## Raleigh/Durham to Seattle flight schedule Scheduled nonstop departures for RDU to SEA starting October 22, 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 Raleigh/Durham (RDU) to Seattle (SEA) | Date | Flight | Airline | Departs RDU | Arrives SEA | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md) | | Thu, Oct 22 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) | | Fri, Oct 23 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | Boeing 737-900 | | Fri, Oct 23 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) | | Sat, Oct 24 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | Boeing 737-900 | | Sat, Oct 24 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | Boeing 737 MAX 9 | | Sun, Oct 25 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | Boeing 737-900 | | Sun, Oct 25 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | Boeing 737 MAX 9 | | Mon, Oct 26 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | Boeing 737-900 | | Mon, Oct 26 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | Boeing 737 MAX 9 | | Tue, Oct 27 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | Boeing 737-900 | | Tue, Oct 27 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | Boeing 737 MAX 9 | | Wed, Oct 28 | DL 354 | Delta Air Lines | 06:30 | 09:27 | 5h 57m | Boeing 737-900 | | Wed, Oct 28 | AS 672 | Alaska Airlines, Inc. | 18:44 | 21:33 | 5h 49m | Boeing 737-900 | Showing all 14 scheduled RDU to SEA departures across 7 days with service, starting October 22, 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 RDU to SEA date on the interactive map ## Aircraft on the Raleigh/Durham to Seattle nonstop In the schedule table on this page, Delta Air Lines flies the [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md), and Alaska Airlines flies the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) and the [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on RDU to SEA departures 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, segment by segment and date by date. Open the calendar for Raleigh/Durham 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 Raleigh/Durham to Seattle departures from October 19 to November 1. Alaska Airlines had space open on 0 of 14 dates checked and Delta Air Lines on 13 of 14. ### See real availability Confirmed upgrade or award seats by date on the RDU 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 RDU to SEA on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Raleigh/Durham to Seattle nonstop Carriers operating RDU to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\ [The aircraft AS flies](https://2lnr.com/seatmaps/as.md) - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) See RDU to SEA on the interactive map → ## Frequently asked questions about RDU to SEA **How long is the flight from Raleigh/Durham (RDU) to Seattle (SEA)?** Scheduled flight times from Raleigh/Durham (RDU) to Seattle (SEA) run from 5h 49m to 5h 57m across the departures in the schedule table on this page. The nonstop covers about 2,349 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from RDU to SEA?** Alaska Airlines and Delta Air Lines fly RDU to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines. **How many flights a week are there from RDU to SEA?** About 14 nonstop flights a week run between Raleigh/Durham (RDU) and Seattle (SEA) in the current schedule, operated by Alaska Airlines and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from RDU to SEA depart?** Scheduled RDU to SEA nonstops in the next 7 days with service leave between 06:30 and 18:44, local time at Raleigh/Durham. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate RDU to SEA nonstop?** In the schedule table on this page, RDU to SEA nonstops fly as AS 672 on Alaska Airlines and DL 354 on Delta Air Lines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on RDU to SEA?** Open the RDU to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines and Delta Air Lines, 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 RDU upgrade and award space](https://2lnr.com/routes/sea-rdu.md). Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md) or [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from Raleigh/Durham (RDU)](https://2lnr.com/routes/rdu.md), or [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md). Nonstops to Seattle (SEA) from other airports within 150 miles of Raleigh/Durham (RDU): - [Charlotte (CLT) to Seattle (SEA)](https://2lnr.com/routes/clt-sea.md), 130 miles from RDU Nonstops from Raleigh/Durham (RDU) to other airports within 150 miles of Seattle (SEA): - [Raleigh/Durham (RDU) to Vancouver (YVR)](https://2lnr.com/routes/rdu-yvr.md), 127 miles from SEA Distances are great-circle between the airports, not driving distance. - [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss RDU 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)