Seattle to Salt Lake City (SEA-SLC): nonstop upgrade & award space

Alaska Airlines and Delta Air Lines fly nonstop between Seattle (SEA) and Salt Lake City (SLC), roughly 110 times a week. With Alaska Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, on every SEA to SLC departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

See SEA to SLC on the interactive map Get started free
110
Nonstop flights a week
687 mi
Nonstop distance
Free
To get started

Seattle to Salt Lake City flight schedule

Scheduled nonstop departures for SEA to SLC, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Seattle (SEA) to Salt Lake City (SLC)
Date Flight Airline Departs SEA Arrives SLC Duration Aircraft
DL 1128Delta Air Lines05:4508:502h 5m32Q
DL 2858Delta Air Lines07:1510:282h 13m32Q
AS 292Alaska Airlines, Inc.07:1810:272h 9m73W
AS 661Alaska Airlines, Inc.09:0812:212h 13m73H
DL 1016Delta Air Lines09:4012:502h 10m738
DL 1265Delta Air Lines11:2214:302h 8m738
AS 733Alaska Airlines, Inc.11:2514:382h 13m7M9
DL 1120Delta Air Lines13:2416:352h 11m32Q
AS 3282Alaska Airlines, Inc.14:1617:282h 12mE75
AS 663Alaska Airlines, Inc.14:3817:452h 7m73H
AS 368Alaska Airlines, Inc.14:4517:482h 3m73J
AS 373Alaska Airlines, Inc.16:4719:502h 3m7M9
DL 1165Delta Air Lines17:5021:022h 12m739
AS 669Alaska Airlines, Inc.18:3121:382h 7m7M8
AS 3298Alaska Airlines, Inc.19:5023:002h 10mE75
DL 1128Delta Air Lines05:4508:502h 5m32Q
DL 2858Delta Air Lines07:1510:282h 13m32Q
AS 292Alaska Airlines, Inc.07:1810:272h 9m73W
AS 661Alaska Airlines, Inc.09:0812:212h 13m73H
DL 1016Delta Air Lines09:4012:502h 10m738
DL 1265Delta Air Lines11:2214:302h 8m738
AS 733Alaska Airlines, Inc.11:2514:382h 13m7M9
DL 1120Delta Air Lines13:2416:352h 11m32Q
AS 3282Alaska Airlines, Inc.14:1617:282h 12mE75
AS 663Alaska Airlines, Inc.14:3817:452h 7m73H
AS 368Alaska Airlines, Inc.14:4517:482h 3m73J
DL 1165Delta Air Lines17:5021:022h 12m739
AS 669Alaska Airlines, Inc.18:3121:382h 7m7M8
AS 3298Alaska Airlines, Inc.19:5023:002h 10mE75
AS 1459Alaska Airlines, Inc.20:3323:362h 3m7M9
DL 1128Delta Air Lines05:4508:502h 5m32Q
DL 2858Delta Air Lines07:1510:282h 13m32Q
AS 292Alaska Airlines, Inc.07:1810:272h 9m73W
AS 661Alaska Airlines, Inc.09:0812:212h 13m73H
DL 1016Delta Air Lines09:4012:502h 10m738
DL 1265Delta Air Lines11:2214:302h 8m738
AS 733Alaska Airlines, Inc.11:2514:382h 13m7M9
DL 1120Delta Air Lines13:2416:352h 11m32Q
AS 3282Alaska Airlines, Inc.14:1617:282h 12mE75
AS 663Alaska Airlines, Inc.14:3817:452h 7m73J

Showing the first 40 of 108 scheduled SEA to SLC departures across the next 7 days with service. 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 has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every SEA to SLC date on the interactive map

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.

See real availability

Confirmed upgrade and award seats on each SEA to SLC departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are 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. 2LNR tracks confirmed upgrade and award space on each of them.

See SEA to SLC on the interactive map →

Frequently asked questions about SEA to SLC

How far is Salt Lake City from Seattle?
SEA to SLC covers about 687 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from SEA to SLC?
Alaska Airlines and Delta Air Lines fly the route 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 110 nonstop flights a week run between Seattle and Salt Lake City 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 05:45 and 20:33, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time 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.

Never miss SEA to SLC upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free