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 78 times a week. The timetable below shows the nonstop scheduled at 2h 15m to 2h 26m for the 687 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 . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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78
Flights a week, 4-week average
2h 15m to 2h 26m
Scheduled flight time
687 mi
Nonstop distance
Free
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Salt Lake City to Seattle flight schedule

Scheduled nonstop departures for SLC 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.

Schedule data dated .

Scheduled nonstop departures from Salt Lake City (SLC) to Seattle (SEA)
Date Flight Airline Departs SLC Arrives SEA Duration Aircraft
AS 3344Alaska Airlines, Inc.06:0507:262h 21mEmbraer E175
DL 2874Delta Air Lines07:4509:102h 25mBoeing 737-800
AS 719Alaska Airlines, Inc.09:4211:022h 20mBoeing 737-900
DL 2995Delta Air Lines11:2812:522h 24mAirbus A321neo family
AS 796Alaska Airlines, Inc.11:2912:442h 15mBoeing 737-800
DL 2921Delta Air Lines13:2614:502h 24mAirbus A321neo family
AS 734Alaska Airlines, Inc.15:0216:172h 15mBoeing 737 MAX 9
DL 2817Delta Air Lines15:3416:552h 21mBoeing 737-800
DL 871Delta Air Lines17:3018:522h 22mBoeing 737-800
AS 665Alaska Airlines, Inc.18:4220:002h 18mBoeing 737-700
DL 2016Delta Air Lines20:4022:052h 25mAirbus A321neo family
DL 2998Delta Air Lines22:3523:592h 24mBoeing 737-900
AS 3344Alaska Airlines, Inc.06:0507:262h 21mEmbraer E175
DL 2874Delta Air Lines07:4509:102h 25mBoeing 737-800
AS 719Alaska Airlines, Inc.09:4211:022h 20mBoeing 737 MAX 9
AS 796Alaska Airlines, Inc.11:2712:442h 17mBoeing 737-900
DL 2995Delta Air Lines11:2812:522h 24mAirbus A321neo family
DL 2921Delta Air Lines13:2614:502h 24mAirbus A321neo family
AS 734Alaska Airlines, Inc.15:0216:172h 15mBoeing 737 MAX 9
DL 2817Delta Air Lines15:3416:552h 21mBoeing 737-800
DL 871Delta Air Lines17:4019:022h 22mBoeing 737-900
AS 665Alaska Airlines, Inc.18:4220:002h 18mBoeing 737-800
DL 2016Delta Air Lines20:4022:052h 25mAirbus A321neo family
DL 2998Delta Air Lines22:4500:112h 26mBoeing 737-900
AS 3344Alaska Airlines, Inc.06:0507:262h 21mEmbraer E175
DL 2874Delta Air Lines07:4509:102h 25mBoeing 737-800
AS 719Alaska Airlines, Inc.09:4211:022h 20mBoeing 737-900
DL 2995Delta Air Lines11:2812:522h 24mAirbus A321neo family
AS 796Alaska Airlines, Inc.11:2912:442h 15mBoeing 737-800
DL 2921Delta Air Lines13:2614:502h 24mAirbus A321neo family
AS 734Alaska Airlines, Inc.15:0216:172h 15mBoeing 737-900
DL 2817Delta Air Lines15:3416:552h 21mBoeing 737-800
DL 871Delta Air Lines17:3018:522h 22mBoeing 737-800
AS 665Alaska Airlines, Inc.18:4220:002h 18mBoeing 737-700
DL 2016Delta Air Lines20:4022:052h 25mAirbus A321neo family
DL 2998Delta Air Lines22:3523:592h 24mBoeing 737-900
AS 3344Alaska Airlines, Inc.06:0507:262h 21mEmbraer E175
DL 2874Delta Air Lines07:4509:102h 25mBoeing 737-800
AS 719Alaska Airlines, Inc.09:4211:022h 20mBoeing 737-800
DL 2995Delta Air Lines11:2812:522h 24mAirbus A321neo family

Showing the first 40 of 82 scheduled SLC 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 SLC to SEA date on the interactive map

Aircraft on the Salt Lake City to Seattle 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 Embraer E175, the Boeing 737-900, the Boeing 737-800, the Boeing 737 MAX 9, and the Boeing 737-700. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

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.

In the 7 days to October 19, 2026, 2LNR checked award space on Salt Lake City to Seattle departures from October 19 to November 1. Alaska Airlines had space open on 11 of 14 dates checked and Delta Air Lines on 14 of 14.

See real availability

Confirmed upgrade or award seats by date on the SLC to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

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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 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. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See SLC to SEA on the interactive map →

Frequently asked questions about SLC to SEA

How long is the flight from Salt Lake City (SLC) to Seattle (SEA)?
Scheduled flight times from Salt Lake City (SLC) to Seattle (SEA) run from 2h 15m to 2h 26m 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 SLC to SEA?
Alaska Airlines and Delta Air Lines fly SLC 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 SLC to SEA?
About 78 nonstop flights a week run between Salt Lake City (SLC) and Seattle (SEA) 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 06:05 and 22:45, local time at Salt Lake City. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate SLC to SEA nonstop?
The schedule table on this page lists 12 flight numbers for SLC to SEA nonstops, including DL 2817, DL 2874, DL 2921, and DL 2995 on Delta Air Lines, and AS 719, AS 734, AS 796, and AS 3344 on Alaska Airlines. The table lists each departure by date with its times 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.

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

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