Seattle to Salt Lake City flights: who flies SEA-SLC

Seattle to Salt Lake City flight schedule

Scheduled nonstop departures for SEA to SLC 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 Salt Lake City (SLC)
Date	Flight	Airline	Departs SEA	Arrives SLC	Duration	Aircraft
Fri, Oct 23	DL 1128	Delta Air Lines	05:30	08:35	2h 5m	Airbus A321neo family
Fri, Oct 23	DL 2858	Delta Air Lines	07:15	10:32	2h 17m	Airbus A321neo family
Fri, Oct 23	AS 430	Alaska Airlines, Inc.	07:18	10:33	2h 15m	Boeing 737-800
Fri, Oct 23	DL 1016	Delta Air Lines	09:42	12:50	2h 8m	Boeing 737-800
Fri, Oct 23	AS 733	Alaska Airlines, Inc.	10:54	14:06	2h 12m	Boeing 737 MAX 9
Fri, Oct 23	DL 1265	Delta Air Lines	11:05	14:15	2h 10m	Boeing 737-800
Fri, Oct 23	DL 1120	Delta Air Lines	13:30	16:43	2h 13m	Airbus A321neo family
Fri, Oct 23	AS 663	Alaska Airlines, Inc.	14:42	17:46	2h 4m	Boeing 737-700
Fri, Oct 23	AS 3268	Alaska Airlines, Inc.	16:59	20:05	2h 6m	Embraer E175
Fri, Oct 23	DL 1165	Delta Air Lines	17:55	21:04	2h 9m	Boeing 737-900
Fri, Oct 23	DL 1239	Delta Air Lines	19:35	22:41	2h 6m	Boeing 737-900
Fri, Oct 23	AS 669	Alaska Airlines, Inc.	20:48	23:51	2h 3m	Boeing 737-800
Sat, Oct 24	DL 1128	Delta Air Lines	05:30	08:35	2h 5m	Airbus A321neo family
Sat, Oct 24	DL 2858	Delta Air Lines	07:15	10:32	2h 17m	Airbus A321neo family
Sat, Oct 24	DL 1016	Delta Air Lines	09:42	12:50	2h 8m	Boeing 737-800
Sat, Oct 24	AS 733	Alaska Airlines, Inc.	10:54	14:06	2h 12m	Boeing 737 MAX 9
Sat, Oct 24	DL 1265	Delta Air Lines	11:05	14:15	2h 10m	Boeing 737-800
Sat, Oct 24	DL 1120	Delta Air Lines	13:30	16:43	2h 13m	Airbus A321neo family
Sat, Oct 24	AS 663	Alaska Airlines, Inc.	14:42	17:46	2h 4m	Boeing 737-800
Sat, Oct 24	AS 3268	Alaska Airlines, Inc.	16:59	20:05	2h 6m	Embraer E175
Sat, Oct 24	DL 1165	Delta Air Lines	17:29	20:35	2h 6m	Boeing 737-900
Sat, Oct 24	AS 669	Alaska Airlines, Inc.	20:48	23:51	2h 3m	Boeing 737-800
Sun, Oct 25	DL 1128	Delta Air Lines	05:30	08:35	2h 5m	Airbus A321neo family
Sun, Oct 25	DL 2858	Delta Air Lines	07:15	10:32	2h 17m	Airbus A321neo family
Sun, Oct 25	AS 430	Alaska Airlines, Inc.	07:18	10:33	2h 15m	Boeing 737-800
Sun, Oct 25	DL 1016	Delta Air Lines	09:42	12:50	2h 8m	Boeing 737-800
Sun, Oct 25	AS 733	Alaska Airlines, Inc.	10:54	14:06	2h 12m	Boeing 737-900
Sun, Oct 25	DL 1265	Delta Air Lines	11:05	14:15	2h 10m	Boeing 737-800
Sun, Oct 25	DL 1120	Delta Air Lines	13:30	16:43	2h 13m	Airbus A321neo family
Sun, Oct 25	AS 663	Alaska Airlines, Inc.	14:42	17:46	2h 4m	Boeing 737-700
Sun, Oct 25	AS 3268	Alaska Airlines, Inc.	16:59	20:05	2h 6m	Embraer E175
Sun, Oct 25	DL 1165	Delta Air Lines	17:55	21:04	2h 9m	Boeing 737-900
Sun, Oct 25	DL 1239	Delta Air Lines	19:55	23:01	2h 6m	Boeing 737-800
Sun, Oct 25	AS 669	Alaska Airlines, Inc.	20:48	23:51	2h 3m	Boeing 737 MAX 9
Mon, Oct 26	DL 1128	Delta Air Lines	05:30	08:35	2h 5m	Airbus A321neo family
Mon, Oct 26	DL 2858	Delta Air Lines	07:15	10:32	2h 17m	Airbus A321neo family
Mon, Oct 26	AS 430	Alaska Airlines, Inc.	07:18	10:33	2h 15m	Boeing 737-800
Mon, Oct 26	DL 1016	Delta Air Lines	09:42	12:50	2h 8m	Boeing 737-800
Mon, Oct 26	AS 733	Alaska Airlines, Inc.	10:54	14:06	2h 12m	Boeing 737-900
Mon, Oct 26	DL 1265	Delta Air Lines	11:05	14:15	2h 10m	Boeing 737-800

Showing the first 40 of 79 scheduled SEA to SLC 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 SEA to SLC date on the interactive map

Aircraft on the Seattle to Salt Lake City nonstop

In the schedule table on this page, Delta Air Lines flies the Airbus A321neo family, the Boeing 737-800, and the Boeing 737-900, and Alaska Airlines flies the Boeing 737-800, the Boeing 737 MAX 9, the Embraer E175, the Boeing 737-700, and the Boeing 737-900. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on SEA to SLC 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 Salt Lake City 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 Salt Lake City departures from October 19 to November 1. Alaska Airlines had space open on 9 of 14 dates checked and Delta Air Lines on 14 of 14.

See real availability

Confirmed upgrade or award seats by date on the SEA to SLC 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 SLC on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Salt Lake City nonstop

Carriers operating SEA to SLC nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See SEA to SLC on the interactive map →

Frequently asked questions about SEA to SLC

How long is the flight from Seattle (SEA) to Salt Lake City (SLC)?

Scheduled flight times from Seattle (SEA) to Salt Lake City (SLC) run from 2h 3m to 2h 17m across the departures in the schedule table on this page. The nonstop covers about 687 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from SEA to SLC?

Alaska Airlines and Delta Air Lines fly SEA to SLC 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 SLC?

About 73 nonstop flights a week run between Seattle (SEA) and Salt Lake City (SLC) 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 SLC depart?

Scheduled SEA to SLC nonstops in the next 7 days with service leave between 05:30 and 20:48, 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 SLC nonstop?

The schedule table on this page lists 12 flight numbers for SEA to SLC nonstops, including DL 1016, DL 1120, DL 1128, DL 1265, and DL 2858 on Delta Air Lines, and AS 430, AS 663, and AS 733 on Alaska Airlines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on SEA to SLC?

Open the SEA to SLC 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.