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

Alaska Airlines and Delta Air Lines fly nonstop between Salt Lake City (SLC) and Seattle (SEA), roughly 101 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 SLC to SEA 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.

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101
Nonstop flights a week
687 mi
Nonstop distance
Free
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Salt Lake City to Seattle flight schedule

Scheduled nonstop departures for SLC to SEA, 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 Salt Lake City (SLC) to Seattle (SEA)
Date Flight Airline Departs SLC Arrives SEA Duration Aircraft
AS 1444Alaska Airlines, Inc.06:2307:352h 12m7M9
AS 3344Alaska Airlines, Inc.07:0008:242h 24mE75
DL 2874Delta Air Lines07:4508:592h 14m738
AS 3381Alaska Airlines, Inc.09:1010:352h 25mE75
AS 796Alaska Airlines, Inc.10:2711:422h 15m7M9
DL 2995Delta Air Lines11:3512:552h 20m32Q
AS 664Alaska Airlines, Inc.13:1714:282h 11m73H
DL 2921Delta Air Lines13:3014:502h 20m32Q
DL 2817Delta Air Lines15:3016:502h 20m738
AS 734Alaska Airlines, Inc.15:3416:502h 16m7M9
DL 871Delta Air Lines17:2018:362h 16m739
AS 3281Alaska Airlines, Inc.18:0519:262h 21mE75
AS 665Alaska Airlines, Inc.18:4420:002h 16m73J
DL 2016Delta Air Lines20:4522:102h 25m32Q
AS 1444Alaska Airlines, Inc.06:2307:352h 12m7M9
AS 3344Alaska Airlines, Inc.07:0008:242h 24mE75
DL 2874Delta Air Lines07:4508:592h 14m738
AS 3381Alaska Airlines, Inc.09:1010:352h 25mE75
AS 796Alaska Airlines, Inc.10:2711:422h 15m7M8
DL 2995Delta Air Lines11:3512:552h 20m32Q
AS 664Alaska Airlines, Inc.13:1714:282h 11m73H
DL 2921Delta Air Lines13:3014:502h 20m32Q
DL 2817Delta Air Lines15:3016:502h 20m738
AS 734Alaska Airlines, Inc.15:3416:502h 16m7M9
DL 871Delta Air Lines17:2018:362h 16m739
AS 3281Alaska Airlines, Inc.18:0519:262h 21mE75
AS 665Alaska Airlines, Inc.18:4420:002h 16m73J
DL 2016Delta Air Lines20:4522:102h 25m32Q
DL 2998Delta Air Lines21:0022:162h 16m739
AS 1444Alaska Airlines, Inc.06:2307:352h 12m7M9
AS 3344Alaska Airlines, Inc.07:0008:242h 24mE75
DL 2874Delta Air Lines07:4508:592h 14m738
AS 3381Alaska Airlines, Inc.09:1010:352h 25mE75
AS 796Alaska Airlines, Inc.10:2711:422h 15m7M8
DL 2995Delta Air Lines11:3512:552h 20m32Q
AS 664Alaska Airlines, Inc.13:1714:282h 11m73H
DL 2921Delta Air Lines13:3014:502h 20m32Q
DL 2817Delta Air Lines15:3016:502h 20m738
AS 734Alaska Airlines, Inc.15:3416:502h 16m7M9
DL 871Delta Air Lines17:2018:362h 16m739

Showing the first 40 of 102 scheduled SLC to SEA 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 SLC to SEA date on the interactive map

Confirmed upgrade & award space on SLC 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 Salt Lake City to Seattle 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 SLC to SEA 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 SLC to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Salt Lake City to Seattle nonstop

Carriers operating SLC to SEA nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See SLC to SEA on the interactive map →

Frequently asked questions about SLC to SEA

How far is Seattle from Salt Lake City?
SLC to SEA 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 SLC to SEA?
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 SLC to SEA?
About 101 nonstop flights a week run between Salt Lake City and Seattle 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 SLC to SEA depart?
Scheduled SLC to SEA nonstops in the next 7 days with service leave between 06:23 and 21:00, local time at Salt Lake City. 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 SLC to SEA?
Open the SLC 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.

Never miss SLC to SEA 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.

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