--- title: "Billings (BIL) to Seattle (SEA) flights: who flies it" description: "Alaska Airlines flies nonstop from BIL to SEA, about 26 flights a week, covering 662 miles. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/bil-sea" url: "https://2lnr.com/routes/bil-sea.md" date_modified: "2026-10-25T05:37:10Z" --- # Billings to Seattle (BIL-SEA): nonstop upgrade & award space Alaska Airlines flies nonstop between Billings (BIL) and Seattle (SEA), roughly 26 times a week. The timetable below shows the nonstop scheduled at 2h 9m to 2h 20m for the 662 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 25, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 30, 2026. See BIL to SEA on the interactive map [Get started free](https://2lnr.com/login) 26 Flights a week, 4-week average 2h 9m to 2h 20m Scheduled flight time 662 mi Nonstop distance Free To get started ## Billings to Seattle flight schedule Scheduled nonstop departures for BIL to SEA starting October 30, 2026, last checked against our schedule feed on October 25, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Billings (BIL) to Seattle (SEA) | Date | Flight | Airline | Departs BIL | Arrives SEA | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 30 | AS 2555 | Alaska Airlines, Inc. | 07:41 | 08:50 | 2h 9m | [Embraer E175](https://2lnr.com/seatmaps/as/e175.md) | | Fri, Oct 30 | AS 2148 | Alaska Airlines, Inc. | 12:05 | 13:16 | 2h 11m | Embraer E175 | | Fri, Oct 30 | AS 2135 | Alaska Airlines, Inc. | 19:32 | 20:45 | 2h 13m | Embraer E175 | | Sat, Oct 31 | AS 2555 | Alaska Airlines, Inc. | 07:41 | 08:50 | 2h 9m | Embraer E175 | | Sat, Oct 31 | AS 2148 | Alaska Airlines, Inc. | 12:05 | 13:16 | 2h 11m | Embraer E175 | | Sat, Oct 31 | AS 2353 | Alaska Airlines, Inc. | 19:32 | 20:45 | 2h 13m | Embraer E175 | | Sun, Nov 1 | AS 2555 | Alaska Airlines, Inc. | 06:00 | 07:20 | 2h 20m | Embraer E175 | | Sun, Nov 1 | AS 2336 | Alaska Airlines, Inc. | 07:18 | 08:35 | 2h 17m | Embraer E175 | | Sun, Nov 1 | AS 2208 | Alaska Airlines, Inc. | 11:55 | 13:10 | 2h 15m | Embraer E175 | | Sun, Nov 1 | AS 2354 | Alaska Airlines, Inc. | 17:12 | 18:25 | 2h 13m | Embraer E175 | | Mon, Nov 2 | AS 2555 | Alaska Airlines, Inc. | 06:00 | 07:20 | 2h 20m | Embraer E175 | | Mon, Nov 2 | AS 2336 | Alaska Airlines, Inc. | 07:18 | 08:35 | 2h 17m | Embraer E175 | | Mon, Nov 2 | AS 2208 | Alaska Airlines, Inc. | 11:55 | 13:10 | 2h 15m | Embraer E175 | | Mon, Nov 2 | AS 2354 | Alaska Airlines, Inc. | 17:12 | 18:25 | 2h 13m | Embraer E175 | | Tue, Nov 3 | AS 2555 | Alaska Airlines, Inc. | 06:00 | 07:20 | 2h 20m | Embraer E175 | | Tue, Nov 3 | AS 2336 | Alaska Airlines, Inc. | 07:18 | 08:35 | 2h 17m | Embraer E175 | | Tue, Nov 3 | AS 2208 | Alaska Airlines, Inc. | 11:55 | 13:10 | 2h 15m | Embraer E175 | | Tue, Nov 3 | AS 2354 | Alaska Airlines, Inc. | 17:12 | 18:25 | 2h 13m | Embraer E175 | | Wed, Nov 4 | AS 2555 | Alaska Airlines, Inc. | 06:00 | 07:20 | 2h 20m | Embraer E175 | | Wed, Nov 4 | AS 2336 | Alaska Airlines, Inc. | 07:18 | 08:35 | 2h 17m | Embraer E175 | | Wed, Nov 4 | AS 2208 | Alaska Airlines, Inc. | 11:55 | 13:10 | 2h 15m | Embraer E175 | | Wed, Nov 4 | AS 2354 | Alaska Airlines, Inc. | 17:12 | 18:25 | 2h 13m | Embraer E175 | | Thu, Nov 5 | AS 2555 | Alaska Airlines, Inc. | 06:00 | 07:20 | 2h 20m | Embraer E175 | | Thu, Nov 5 | AS 2336 | Alaska Airlines, Inc. | 07:18 | 08:35 | 2h 17m | Embraer E175 | | Thu, Nov 5 | AS 2208 | Alaska Airlines, Inc. | 11:55 | 13:10 | 2h 15m | Embraer E175 | | Thu, Nov 5 | AS 2354 | Alaska Airlines, Inc. | 17:12 | 18:25 | 2h 13m | Embraer E175 | Showing all 26 scheduled BIL to SEA departures across 7 days with service, starting October 30, 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 BIL to SEA date on the interactive map ## Aircraft on the Billings to Seattle nonstop Alaska Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/as/e175.md) on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on BIL to SEA departures 2LNR tracks confirmed upgrade and award space on Alaska Airlines for each flight segment and date. Open the calendar for Billings to Seattle to see which departures have space. The next 14 days are free on every product, and Pro covers the full horizon. Alaska Airlines award space was open on 11 of the 14 Billings to Seattle departure dates from October 26 to November 8 that 2LNR checked in the 7 days to October 26, 2026. ### See real availability Confirmed upgrade or award seats by date on the BIL to SEA departures 2LNR tracks, each with the time of its last check. ### Set an alert Watch this route on Pro and 2LNR notifies you when a check finds space on a date you're tracking. ### Plan on the map See BIL to SEA on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Billings to Seattle nonstop Carriers operating BIL 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) See BIL to SEA on the interactive map → ## Frequently asked questions about BIL to SEA **How long is the flight from Billings (BIL) to Seattle (SEA)?** Scheduled flight times from Billings (BIL) to Seattle (SEA) run from 2h 9m to 2h 20m across the departures in the schedule table on this page. The nonstop covers about 662 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from BIL to SEA?** Alaska Airlines is currently the only airline flying BIL to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines. **How many flights a week are there from BIL to SEA?** About 26 nonstop flights a week run between Billings (BIL) and Seattle (SEA) in the current schedule, operated by Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from BIL to SEA depart?** Scheduled BIL to SEA nonstops in the next 7 days with service leave between 06:00 and 19:32, local time at Billings. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate BIL to SEA nonstop?** In the schedule table on this page, BIL to SEA nonstops fly as AS 2135, AS 2148, AS 2208, AS 2336, AS 2353, AS 2354, and AS 2555 on Alaska Airlines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on BIL to SEA?** Open the BIL to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on 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 BIL upgrade and award space](https://2lnr.com/routes/sea-bil.md). Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md). Planning an upgrade on this route? Read about [Alaska upgrade certificates and U class](https://2lnr.com/guides/alaska-upgrades.md) or [how to apply an Alaska certificate](https://2lnr.com/about/as/upgrade-certificates.md). Looking beyond this route? See [every route from Billings (BIL)](https://2lnr.com/routes/bil.md), or [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md). Nonstops to Seattle (SEA) from other airports within 150 miles of Billings (BIL): - [Bozeman (BZN) to Seattle (SEA)](https://2lnr.com/routes/bzn-sea.md), 126 miles from BIL Nonstops from Billings (BIL) to other airports within 150 miles of Seattle (SEA): - [Billings (BIL) to Portland (PDX)](https://2lnr.com/routes/bil-pdx.md), 129 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) ## See BIL to SEA upgrade and award space by date 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)