--- title: "San Francisco to Seattle flights: who flies SFO-SEA" description: "Alaska Airlines, Delta Air Lines and United Airlines fly nonstop from SFO to SEA, about 166 flights a week. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/sfo-sea" url: "https://2lnr.com/routes/sfo-sea.md" date_modified: "2026-10-18T05:10:47Z" --- # San Francisco to Seattle (SFO-SEA): nonstop upgrade & award space United Airlines, Alaska Airlines, and Delta Air Lines fly nonstop between San Francisco (SFO) and Seattle (SEA), roughly 166 times a week. The timetable below shows the nonstop scheduled at 2h 11m to 2h 30m for the 679 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 SFO to SEA on the interactive map [Get started free](https://2lnr.com/login) 166 Flights a week, 4-week average 2h 11m to 2h 30m Scheduled flight time 679 mi Nonstop distance Free To get started ## San Francisco to Seattle flight schedule Scheduled nonstop departures for SFO 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 San Francisco (SFO) to Seattle (SEA) | Date | Flight | Airline | Departs SFO | Arrives SEA | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | AS 620 | Alaska Airlines, Inc. | 06:07 | 08:20 | 2h 13m | [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) | | Fri, Oct 23 | DL 2721 | Delta Air Lines | 06:20 | 08:41 | 2h 21m | [Airbus A220-300](https://2lnr.com/seatmaps/dl/a220-300.md) | | Fri, Oct 23 | UA 5790 | United Airlines | 07:36 | 10:03 | 2h 27m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Fri, Oct 23 | AS 1327 | Alaska Airlines, Inc. | 09:43 | 11:55 | 2h 12m | Boeing 737-900 | | Fri, Oct 23 | UA 500 | United Airlines | 10:08 | 12:23 | 2h 15m | [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md) | | Fri, Oct 23 | DL 1134 | Delta Air Lines | 10:35 | 12:57 | 2h 22m | Airbus A220-300 | | Fri, Oct 23 | AS 580 | Alaska Airlines, Inc. | 11:00 | 13:16 | 2h 16m | Boeing 737-900 | | Fri, Oct 23 | UA 2744 | United Airlines | 12:03 | 14:22 | 2h 19m | [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md) | | Fri, Oct 23 | AS 656 | Alaska Airlines, Inc. | 13:51 | 16:04 | 2h 13m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) | | Fri, Oct 23 | UA 5842 | United Airlines | 14:05 | 16:34 | 2h 29m | Embraer E175 | | Fri, Oct 23 | DL 1412 | Delta Air Lines | 14:15 | 16:37 | 2h 22m | Airbus A220-300 | | Fri, Oct 23 | AS 630 | Alaska Airlines, Inc. | 15:21 | 17:33 | 2h 12m | Boeing 737-900 | | Fri, Oct 23 | AS 68 | Alaska Airlines, Inc. | 16:21 | 18:33 | 2h 12m | Boeing 737-900 | | Fri, Oct 23 | UA 2279 | United Airlines | 16:25 | 18:44 | 2h 19m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.md) | | Fri, Oct 23 | AS 1340 | Alaska Airlines, Inc. | 17:45 | 19:56 | 2h 11m | Boeing 737 MAX 9 | | Fri, Oct 23 | DL 3707 | Delta Air Lines | 17:45 | 20:04 | 2h 19m | [Embraer E175](https://2lnr.com/seatmaps/dl/e175.md) | | Fri, Oct 23 | UA 1097 | United Airlines | 18:35 | 21:01 | 2h 26m | Airbus A320 | | Fri, Oct 23 | AS 591 | Alaska Airlines, Inc. | 19:11 | 21:25 | 2h 14m | Boeing 737-900 | | Fri, Oct 23 | AS 758 | Alaska Airlines, Inc. | 20:46 | 23:03 | 2h 17m | Boeing 737-900 | | Fri, Oct 23 | DL 3991 | Delta Air Lines | 20:58 | 23:13 | 2h 15m | Embraer E175 | | Fri, Oct 23 | UA 1007 | United Airlines | 21:07 | 23:26 | 2h 19m | [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md) | | Fri, Oct 23 | UA 5579 | United Airlines | 22:45 | 01:15 | 2h 30m | Embraer E175 | | Sat, Oct 24 | AS 620 | Alaska Airlines, Inc. | 06:07 | 08:20 | 2h 13m | Boeing 737-900 | | Sat, Oct 24 | DL 2721 | Delta Air Lines | 06:20 | 08:41 | 2h 21m | Airbus A220-300 | | Sat, Oct 24 | UA 5790 | United Airlines | 07:35 | 10:02 | 2h 27m | Embraer E175 | | Sat, Oct 24 | AS 1327 | Alaska Airlines, Inc. | 09:43 | 11:55 | 2h 12m | Boeing 737-900 | | Sat, Oct 24 | UA 500 | United Airlines | 10:05 | 12:20 | 2h 15m | [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md) | | Sat, Oct 24 | DL 3814 | Delta Air Lines | 10:31 | 12:55 | 2h 24m | Embraer E175 | | Sat, Oct 24 | DL 1134 | Delta Air Lines | 10:35 | 12:57 | 2h 22m | Airbus A220-300 | | Sat, Oct 24 | AS 580 | Alaska Airlines, Inc. | 11:00 | 13:16 | 2h 16m | Boeing 737-900 | | Sat, Oct 24 | UA 2744 | United Airlines | 12:03 | 14:22 | 2h 19m | Airbus A319 | | Sat, Oct 24 | AS 656 | Alaska Airlines, Inc. | 13:51 | 16:04 | 2h 13m | Boeing 737 MAX 9 | | Sat, Oct 24 | DL 1412 | Delta Air Lines | 14:15 | 16:37 | 2h 22m | Airbus A220-300 | | Sat, Oct 24 | AS 1646 | Alaska Airlines, Inc. | 15:18 | 17:33 | 2h 15m | Boeing 737-900 | | Sat, Oct 24 | AS 630 | Alaska Airlines, Inc. | 15:21 | 17:33 | 2h 12m | [Boeing 737-700](https://2lnr.com/seatmaps/as/737-700.md) | | Sat, Oct 24 | AS 68 | Alaska Airlines, Inc. | 16:21 | 18:33 | 2h 12m | [Boeing 737-800](https://2lnr.com/seatmaps/as/737-800.md) | | Sat, Oct 24 | UA 2279 | United Airlines | 16:25 | 18:44 | 2h 19m | Boeing 737 MAX 9 | | Sat, Oct 24 | AS 1340 | Alaska Airlines, Inc. | 17:45 | 19:56 | 2h 11m | Boeing 737-800 | | Sat, Oct 24 | DL 3707 | Delta Air Lines | 17:45 | 20:04 | 2h 19m | Embraer E175 | | Sat, Oct 24 | UA 1097 | United Airlines | 18:35 | 21:01 | 2h 26m | Airbus A320 | Showing the first 40 of 159 scheduled SFO to SEA departures across 7 days with service, starting October 23, 2026. Every remaining date is 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 SFO to SEA date on the interactive map ## Aircraft on the San Francisco to Seattle nonstop In the schedule table on this page, Alaska Airlines flies the [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md), the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md), the [Boeing 737-800](https://2lnr.com/seatmaps/as/737-800.md), and the [Boeing 737-700](https://2lnr.com/seatmaps/as/737-700.md), and United Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md), the [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md), the [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md), the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.md), the [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md), and the [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md). The Aircraft column has the rest. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on SFO 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 San Francisco 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 San Francisco to Seattle departures from October 19 to November 1. Alaska Airlines had space open on 13 of 14 dates checked and Delta Air Lines on 14 of 14. ### See real availability Confirmed upgrade or award seats by date on the SFO 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 SFO to SEA on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying San Francisco to Seattle nonstop Carriers operating SFO to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) - [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 SFO to SEA on the interactive map → ## Frequently asked questions about SFO to SEA **How long is the flight from San Francisco (SFO) to Seattle (SEA)?** Scheduled flight times from San Francisco (SFO) to Seattle (SEA) run from 2h 11m to 2h 30m across the departures in the schedule table on this page. The nonstop covers about 679 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SFO to SEA?** United Airlines, Alaska Airlines, and Delta Air Lines fly SFO 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 SFO to SEA?** About 166 nonstop flights a week run between San Francisco (SFO) and Seattle (SEA) in the current schedule, operated by United Airlines, 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 SFO to SEA depart?** Scheduled SFO to SEA nonstops in the next 7 days with service leave between 06:07 and 22:45, local time at San Francisco. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate SFO to SEA nonstop?** The schedule table on this page lists 24 flight numbers for SFO to SEA nonstops, including AS 580, AS 620, and AS 1327 on Alaska Airlines; UA 500, UA 2744, and UA 5790 on United Airlines; and DL 1134 and DL 2721 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 SFO to SEA?** Open the SFO 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 SFO upgrade and award space](https://2lnr.com/routes/sea-sfo.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 San Francisco (SFO)](https://2lnr.com/routes/sfo.md), or [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md). Nonstops to Seattle (SEA) from other airports within 150 miles of San Francisco (SFO): - [Oakland (OAK) to Seattle (SEA)](https://2lnr.com/routes/oak-sea.md), 11 miles from SFO - [San Jose (SJC) to Seattle (SEA)](https://2lnr.com/routes/sjc-sea.md), 31 miles from SFO - [Santa Rosa (STS) to Seattle (SEA)](https://2lnr.com/routes/sts-sea.md), 65 miles from SFO - [Monterey (MRY) to Seattle (SEA)](https://2lnr.com/routes/mry-sea.md), 78 miles from SFO - [Sacramento (SMF) to Seattle (SEA)](https://2lnr.com/routes/smf-sea.md), 85 miles from SFO Nonstops from San Francisco (SFO) to other airports within 150 miles of Seattle (SEA): - [San Francisco (SFO) to Everett (PAE)](https://2lnr.com/routes/sfo-pae.md), 32 miles from SEA - [San Francisco (SFO) to Vancouver (YVR)](https://2lnr.com/routes/sfo-yvr.md), 127 miles from SEA - [San Francisco (SFO) to Portland (PDX)](https://2lnr.com/routes/sfo-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) ## Never miss SFO 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)