---
title: "Detroit (DTW) to Seattle (SEA) flights: who flies it"
description: "Delta Air Lines and Alaska Airlines fly nonstop from DTW to SEA, about 38 flights a week. See confirmed upgrade and award space by date on 2LNR, the next 14 days free."
canonical: "https://2lnr.com/routes/dtw-sea"
url: "https://2lnr.com/routes/dtw-sea.md"
date_modified: "2026-10-18T05:10:47Z"
---

# Detroit to Seattle (DTW-SEA): nonstop upgrade & award space

Delta Air Lines and Alaska Airlines fly nonstop between Detroit (DTW) and Seattle (SEA), roughly 38 times a week. The timetable below shows the nonstop scheduled at 4h 55m to 5h 15m for the 1,922 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines 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 22, 2026.

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

38

Flights a week, 4-week average

4h 55m to 5h 15m

Scheduled flight time

1,922 mi

Nonstop distance

Free

To get started

## Detroit to Seattle flight schedule

Scheduled nonstop departures for DTW to SEA starting October 22, 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 Detroit (DTW) to Seattle (SEA)

| Date | Flight | Airline | Departs DTW | Arrives SEA | Duration | Aircraft |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Thu, Oct 22 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) |
| Thu, Oct 22 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md) |
| Thu, Oct 22 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md) |
| Thu, Oct 22 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |
| Thu, Oct 22 | AS 313 | Alaska Airlines, Inc. | 17:59 | 19:57 | 4h 58m | [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) |
| Thu, Oct 22 | DL 565 | Delta Air Lines | 19:57 | 22:05 | 5h 8m | Boeing 737-900 |
| Fri, Oct 23 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | Boeing 737 MAX 9 |
| Fri, Oct 23 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | Airbus A321neo family |
| Fri, Oct 23 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | Boeing 737-900 |
| Fri, Oct 23 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |
| Fri, Oct 23 | AS 313 | Alaska Airlines, Inc. | 17:59 | 19:57 | 4h 58m | Boeing 737 MAX 9 |
| Fri, Oct 23 | DL 565 | Delta Air Lines | 19:57 | 22:05 | 5h 8m | Boeing 737-900 |
| Sat, Oct 24 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | Boeing 737-900 |
| Sat, Oct 24 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | Airbus A321neo family |
| Sat, Oct 24 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | Boeing 737-900 |
| Sat, Oct 24 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |
| Sat, Oct 24 | AS 313 | Alaska Airlines, Inc. | 17:59 | 19:57 | 4h 58m | Boeing 737-900 |
| Sat, Oct 24 | DL 565 | Delta Air Lines | 19:57 | 22:05 | 5h 8m | Boeing 737-900 |
| Sun, Oct 25 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | Boeing 737 MAX 9 |
| Sun, Oct 25 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | Airbus A321neo family |
| Sun, Oct 25 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | Boeing 737-900 |
| Sun, Oct 25 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |
| Sun, Oct 25 | AS 313 | Alaska Airlines, Inc. | 17:59 | 19:57 | 4h 58m | Boeing 737-900 |
| Sun, Oct 25 | DL 565 | Delta Air Lines | 19:57 | 22:05 | 5h 8m | Boeing 737-900 |
| Mon, Oct 26 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | Boeing 737 MAX 9 |
| Mon, Oct 26 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | Airbus A321neo family |
| Mon, Oct 26 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | Boeing 737-900 |
| Mon, Oct 26 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |
| Mon, Oct 26 | AS 313 | Alaska Airlines, Inc. | 17:59 | 19:57 | 4h 58m | Boeing 737-900 |
| Mon, Oct 26 | DL 565 | Delta Air Lines | 19:57 | 22:05 | 5h 8m | Boeing 737-900 |
| Tue, Oct 27 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | Boeing 737 MAX 9 |
| Tue, Oct 27 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | Airbus A321neo family |
| Tue, Oct 27 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | Boeing 737-900 |
| Tue, Oct 27 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |
| Tue, Oct 27 | AS 313 | Alaska Airlines, Inc. | 17:59 | 19:57 | 4h 58m | [Boeing 737-800](https://2lnr.com/seatmaps/as/737-800.md) |
| Tue, Oct 27 | DL 565 | Delta Air Lines | 19:57 | 22:05 | 5h 8m | Boeing 737-900 |
| Wed, Oct 28 | AS 316 | Alaska Airlines, Inc. | 07:00 | 08:55 | 4h 55m | Boeing 737-800 |
| Wed, Oct 28 | DL 734 | Delta Air Lines | 08:45 | 11:00 | 5h 15m | Airbus A321neo family |
| Wed, Oct 28 | DL 728 | Delta Air Lines | 12:40 | 14:45 | 5h 5m | Boeing 737-900 |
| Wed, Oct 28 | DL 944 | Delta Air Lines | 16:34 | 18:35 | 5h 1m | Boeing 737-900 |

Showing the first 40 of 42 scheduled DTW to SEA departures across 7 days with service, starting October 22, 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 DTW to SEA date on the interactive map

## Aircraft on the Detroit to Seattle nonstop

In the schedule table on this page, Delta Air Lines flies the [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md) and the [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md), and Alaska Airlines flies the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md), the [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md), and the [Boeing 737-800](https://2lnr.com/seatmaps/as/737-800.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

## Confirmed upgrade & award space on DTW to SEA departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines, segment by segment and date by date. Open the calendar for Detroit 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 Detroit to Seattle departures from October 19 to November 1. Delta Air Lines had space open on 14 of 14 dates checked and Alaska Airlines on 10 of 14.

### See real availability

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

## Airlines flying Detroit to Seattle nonstop

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

- [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\
  [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md)
- [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\
  [The aircraft AS flies](https://2lnr.com/seatmaps/as.md)

See DTW to SEA on the interactive map →

## Frequently asked questions about DTW to SEA

**How long is the flight from Detroit (DTW) to Seattle (SEA)?**

Scheduled flight times from Detroit (DTW) to Seattle (SEA) run from 4h 55m to 5h 15m across the departures in the schedule table on this page. The nonstop covers about 1,922 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

**Which airlines fly nonstop from DTW to SEA?**

Delta Air Lines and Alaska Airlines fly DTW to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines.

**How many flights a week are there from DTW to SEA?**

About 38 nonstop flights a week run between Detroit (DTW) and Seattle (SEA) in the current schedule, operated by Delta Air Lines and Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

**What time do flights from DTW to SEA depart?**

Scheduled DTW to SEA nonstops in the next 7 days with service leave between 07:00 and 19:57, local time at Detroit. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

**Which flights operate DTW to SEA nonstop?**

In the schedule table on this page, DTW to SEA nonstops fly as DL 565, DL 728, DL 734, and DL 944 on Delta Air Lines, and AS 313 and AS 316 on Alaska Airlines. The table lists each departure by date with its times and aircraft.

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

Open the DTW to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines and Alaska Airlines, 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 DTW upgrade and award space](https://2lnr.com/routes/sea-dtw.md).

Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md) or [Alaska Airlines award availability](https://2lnr.com/awards/as.md).

Looking beyond this route? See [every route from Detroit (DTW)](https://2lnr.com/routes/dtw.md), or [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md).

Nonstops to Seattle (SEA) from other airports within 150 miles of Detroit (DTW):

- [Cleveland (CLE) to Seattle (SEA)](https://2lnr.com/routes/cle-sea.md), 95 miles from DTW

Nonstops from Detroit (DTW) to other airports within 150 miles of Seattle (SEA):

- [Detroit (DTW) to Vancouver (YVR)](https://2lnr.com/routes/dtw-yvr.md), 127 miles from SEA
- [Detroit (DTW) to Portland (PDX)](https://2lnr.com/routes/dtw-pdx.md), 129 miles from SEA

Distances are great-circle between the airports, not driving distance.

- [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md)
- [How to read award availability by date](https://2lnr.com/guides/award-availability.md)

## Never miss DTW 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)