---
title: "Salt Lake City to Seattle flights: who flies SLC-SEA"
description: "Alaska Airlines and Delta Air Lines fly nonstop from SLC to SEA, about 78 flights a week, covering 687 miles. Upgrade and award space by date on 2LNR, next 14 days free."
canonical: "https://2lnr.com/routes/slc-sea"
url: "https://2lnr.com/routes/slc-sea.md"
date_modified: "2026-10-18T05:10:47Z"
---

# 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 October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated October 23, 2026.

See SLC to SEA on the interactive map [Get started free](https://2lnr.com/login)

78

Flights a week, 4-week average

2h 15m to 2h 26m

Scheduled flight time

687 mi

Nonstop distance

Free

To get started

## 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.

Scheduled nonstop departures from Salt Lake City (SLC) to Seattle (SEA)

| Date | Flight | Airline | Departs SLC | Arrives SEA | Duration | Aircraft |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Fri, Oct 23 | AS 3344 | Alaska Airlines, Inc. | 06:05 | 07:26 | 2h 21m | [Embraer E175](https://2lnr.com/seatmaps/as/e175.md) |
| Fri, Oct 23 | DL 2874 | Delta Air Lines | 07:45 | 09:10 | 2h 25m | [Boeing 737-800](https://2lnr.com/seatmaps/dl/737-800.md) |
| Fri, Oct 23 | AS 719 | Alaska Airlines, Inc. | 09:42 | 11:02 | 2h 20m | [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) |
| Fri, Oct 23 | DL 2995 | Delta Air Lines | 11:28 | 12:52 | 2h 24m | [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md) |
| Fri, Oct 23 | AS 796 | Alaska Airlines, Inc. | 11:29 | 12:44 | 2h 15m | [Boeing 737-800](https://2lnr.com/seatmaps/as/737-800.md) |
| Fri, Oct 23 | DL 2921 | Delta Air Lines | 13:26 | 14:50 | 2h 24m | Airbus A321neo family |
| Fri, Oct 23 | AS 734 | Alaska Airlines, Inc. | 15:02 | 16:17 | 2h 15m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) |
| Fri, Oct 23 | DL 2817 | Delta Air Lines | 15:34 | 16:55 | 2h 21m | Boeing 737-800 |
| Fri, Oct 23 | DL 871 | Delta Air Lines | 17:30 | 18:52 | 2h 22m | Boeing 737-800 |
| Fri, Oct 23 | AS 665 | Alaska Airlines, Inc. | 18:42 | 20:00 | 2h 18m | [Boeing 737-700](https://2lnr.com/seatmaps/as/737-700.md) |
| Fri, Oct 23 | DL 2016 | Delta Air Lines | 20:40 | 22:05 | 2h 25m | Airbus A321neo family |
| Fri, Oct 23 | DL 2998 | Delta Air Lines | 22:35 | 23:59 | 2h 24m | [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md) |
| Sat, Oct 24 | AS 3344 | Alaska Airlines, Inc. | 06:05 | 07:26 | 2h 21m | Embraer E175 |
| Sat, Oct 24 | DL 2874 | Delta Air Lines | 07:45 | 09:10 | 2h 25m | Boeing 737-800 |
| Sat, Oct 24 | AS 719 | Alaska Airlines, Inc. | 09:42 | 11:02 | 2h 20m | Boeing 737 MAX 9 |
| Sat, Oct 24 | AS 796 | Alaska Airlines, Inc. | 11:27 | 12:44 | 2h 17m | Boeing 737-900 |
| Sat, Oct 24 | DL 2995 | Delta Air Lines | 11:28 | 12:52 | 2h 24m | Airbus A321neo family |
| Sat, Oct 24 | DL 2921 | Delta Air Lines | 13:26 | 14:50 | 2h 24m | Airbus A321neo family |
| Sat, Oct 24 | AS 734 | Alaska Airlines, Inc. | 15:02 | 16:17 | 2h 15m | Boeing 737 MAX 9 |
| Sat, Oct 24 | DL 2817 | Delta Air Lines | 15:34 | 16:55 | 2h 21m | Boeing 737-800 |
| Sat, Oct 24 | DL 871 | Delta Air Lines | 17:40 | 19:02 | 2h 22m | Boeing 737-900 |
| Sat, Oct 24 | AS 665 | Alaska Airlines, Inc. | 18:42 | 20:00 | 2h 18m | Boeing 737-800 |
| Sat, Oct 24 | DL 2016 | Delta Air Lines | 20:40 | 22:05 | 2h 25m | Airbus A321neo family |
| Sat, Oct 24 | DL 2998 | Delta Air Lines | 22:45 | 00:11 | 2h 26m | Boeing 737-900 |
| Sun, Oct 25 | AS 3344 | Alaska Airlines, Inc. | 06:05 | 07:26 | 2h 21m | Embraer E175 |
| Sun, Oct 25 | DL 2874 | Delta Air Lines | 07:45 | 09:10 | 2h 25m | Boeing 737-800 |
| Sun, Oct 25 | AS 719 | Alaska Airlines, Inc. | 09:42 | 11:02 | 2h 20m | Boeing 737-900 |
| Sun, Oct 25 | DL 2995 | Delta Air Lines | 11:28 | 12:52 | 2h 24m | Airbus A321neo family |
| Sun, Oct 25 | AS 796 | Alaska Airlines, Inc. | 11:29 | 12:44 | 2h 15m | Boeing 737-800 |
| Sun, Oct 25 | DL 2921 | Delta Air Lines | 13:26 | 14:50 | 2h 24m | Airbus A321neo family |
| Sun, Oct 25 | AS 734 | Alaska Airlines, Inc. | 15:02 | 16:17 | 2h 15m | Boeing 737-900 |
| Sun, Oct 25 | DL 2817 | Delta Air Lines | 15:34 | 16:55 | 2h 21m | Boeing 737-800 |
| Sun, Oct 25 | DL 871 | Delta Air Lines | 17:30 | 18:52 | 2h 22m | Boeing 737-800 |
| Sun, Oct 25 | AS 665 | Alaska Airlines, Inc. | 18:42 | 20:00 | 2h 18m | Boeing 737-700 |
| Sun, Oct 25 | DL 2016 | Delta Air Lines | 20:40 | 22:05 | 2h 25m | Airbus A321neo family |
| Sun, Oct 25 | DL 2998 | Delta Air Lines | 22:35 | 23:59 | 2h 24m | Boeing 737-900 |
| Mon, Oct 26 | AS 3344 | Alaska Airlines, Inc. | 06:05 | 07:26 | 2h 21m | Embraer E175 |
| Mon, Oct 26 | DL 2874 | Delta Air Lines | 07:45 | 09:10 | 2h 25m | Boeing 737-800 |
| Mon, Oct 26 | AS 719 | Alaska Airlines, Inc. | 09:42 | 11:02 | 2h 20m | Boeing 737-800 |
| Mon, Oct 26 | DL 2995 | Delta Air Lines | 11:28 | 12:52 | 2h 24m | Airbus 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](https://2lnr.com/seatmaps/dl/a321neo.md), the [Boeing 737-800](https://2lnr.com/seatmaps/dl/737-800.md), and the [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md), and Alaska Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/as/e175.md), the [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md), the [Boeing 737-800](https://2lnr.com/seatmaps/as/737-800.md), the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md), and the [Boeing 737-700](https://2lnr.com/seatmaps/as/737-700.md). 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.

### 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 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.

- [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 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.

Flying the other way? See [SEA to SLC upgrade and award space](https://2lnr.com/routes/sea-slc.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 Salt Lake City (SLC)](https://2lnr.com/routes/slc.md), or [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md).

Nonstops from Salt Lake City (SLC) to other airports within 150 miles of Seattle (SEA):

- [Salt Lake City (SLC) to Vancouver (YVR)](https://2lnr.com/routes/slc-yvr.md), 127 miles from SEA
- [Salt Lake City (SLC) to Portland (PDX)](https://2lnr.com/routes/slc-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 SLC 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)