--- title: "Seattle (SEA) to Cincinnati (CVG) flights: who flies it" description: "Alaska Airlines and Delta Air Lines fly nonstop from SEA to CVG, 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/sea-cvg" url: "https://2lnr.com/routes/sea-cvg.md" date_modified: "2026-10-18T05:10:47Z" --- # Seattle to Cincinnati (SEA-CVG): nonstop upgrade & award space Alaska Airlines and Delta Air Lines fly nonstop between Seattle (SEA) and Cincinnati (CVG), roughly 14 times a week. The timetable below shows the nonstop scheduled at 4h 22m to 4h 28m for the 1,960 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 SEA to CVG on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 4h 22m to 4h 28m Scheduled flight time 1,960 mi Nonstop distance Free To get started ## Seattle to Cincinnati flight schedule Scheduled nonstop departures for SEA to CVG 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 Seattle (SEA) to Cincinnati (CVG) | Date | Flight | Airline | Departs SEA | Arrives CVG | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md) | | Fri, Oct 23 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) | | Sat, Oct 24 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | Boeing 737-900 | | Sat, Oct 24 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | Boeing 737 MAX 9 | | Sun, Oct 25 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | Boeing 737-900 | | Sun, Oct 25 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | Boeing 737 MAX 9 | | Mon, Oct 26 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | Boeing 737-900 | | Mon, Oct 26 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | Boeing 737 MAX 9 | | Tue, Oct 27 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | Boeing 737-900 | | Tue, Oct 27 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | Boeing 737 MAX 9 | | Wed, Oct 28 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | Boeing 737-900 | | Wed, Oct 28 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | Boeing 737 MAX 9 | | Thu, Oct 29 | DL 558 | Delta Air Lines | 12:05 | 19:33 | 4h 28m | Boeing 737-900 | | Thu, Oct 29 | AS 520 | Alaska Airlines, Inc. | 13:47 | 21:09 | 4h 22m | Boeing 737 MAX 9 | Showing all 14 scheduled SEA to CVG 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 SEA to CVG date on the interactive map ## Aircraft on the Seattle to Cincinnati 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). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on SEA to CVG 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 Seattle to Cincinnati 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 Seattle to Cincinnati departures from October 19 to November 1. Alaska Airlines had space open on 7 of 14 dates checked and Delta Air Lines on 13 of 14. ### See real availability Confirmed upgrade or award seats by date on the SEA to CVG 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 SEA to CVG on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Seattle to Cincinnati nonstop Carriers operating SEA to CVG 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 SEA to CVG on the interactive map → ## Frequently asked questions about SEA to CVG **How long is the flight from Seattle (SEA) to Cincinnati (CVG)?** Scheduled flight times from Seattle (SEA) to Cincinnati (CVG) run from 4h 22m to 4h 28m across the departures in the schedule table on this page. The nonstop covers about 1,960 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SEA to CVG?** Alaska Airlines and Delta Air Lines fly SEA to CVG nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines. **How many flights a week are there from SEA to CVG?** About 14 nonstop flights a week run between Seattle (SEA) and Cincinnati (CVG) 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 SEA to CVG depart?** Scheduled SEA to CVG nonstops in the next 7 days with service leave between 12:05 and 13:47, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate SEA to CVG nonstop?** In the schedule table on this page, SEA to CVG nonstops fly as AS 520 on Alaska Airlines and DL 558 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 SEA to CVG?** Open the SEA to CVG 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 [CVG to SEA upgrade and award space](https://2lnr.com/routes/cvg-sea.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 Seattle (SEA)](https://2lnr.com/routes/sea.md), or [every route from Cincinnati (CVG)](https://2lnr.com/routes/cvg.md). Nonstops from Seattle (SEA) to other airports within 150 miles of Cincinnati (CVG): - [Seattle (SEA) to Indianapolis (IND)](https://2lnr.com/routes/sea-ind.md), 98 miles from CVG - [Seattle (SEA) to Columbus (CMH)](https://2lnr.com/routes/sea-cmh.md), 115 miles from CVG 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 SEA to CVG 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)