Detroit (DTW) to Seattle (SEA) is about 1,920 miles and typically takes 4 h 25 min by air. Some carriers have hubs at both ends, which makes frequent nonstops more likely. Call (800) 490-3234 for live fares.
DTW to SEA at a glance
| Route | Detroit (DTW) to Seattle (SEA) |
|---|---|
| Distance | about 1,920 miles / 3,090 km |
| Typical flight time | 4 h 25 min (estimate) |
| Time difference | 3 hours behind |
| Route type | Domestic (U.S.) |
| Airlines with hubs here | Delta Air Lines and Alaska Airlines |
About the Detroit to Seattle route
Detroit to Seattle covers about 1,920 miles, a mid-length domestic trip that most airlines can serve nonstop or with one easy connection.
Flight time and distance
A typical flight takes about 4 h 25 min gate to gate, with a realistic range of 4 h 05 min to 4 h 50 min depending on wind, routing and aircraft. That is an estimate based on the distance of roughly 1,920 miles (3,090 km), not a published schedule.
Seattle is 3 hours behind Detroit on standard time, so the arrival time on your ticket will look different from the flight duration.
Among the 200 routes in our guides, DTW to SEA is longer than about 64% of them.
For comparison, Detroit to Los Angeles (DTW to LAX) is about 1,970 miles, so Seattle is a bit closer away from DTW.
The airports
Detroit Metropolitan Wayne County Airport (DTW)
Detroit Metro is a Delta hub with a long, straight terminal that makes connections intuitive. Full DTW guide.
Seattle-Tacoma International Airport (SEA)
Sea-Tac is Alaska Airlines' home hub and a growing Delta gateway to Asia, which makes it a useful connecting point for Alaska, Hawaii and Pacific routes. Full SEA guide.
Other airports are worth a look: around Seattle, Portland (PDX). Comparing them can change the price or the travel time to your final destination.
Airlines on this route
Delta Air Lines has a hub at both ends, so it is the most likely to offer frequent nonstop service and easy rebooking on this route.
Alaska Airlines also has a major presence at one of the two airports.
Schedules change by season, and a nonstop that exists in summer may not operate in winter. Confirm the current options before you plan around a specific flight.
Common connection points
If you choose a one-stop itinerary, likely routings include Alaska Airlines via San Francisco (SFO), which adds about 830 miles (43% beyond the direct distance). Choose the connection with the best weather odds for your travel month and leave a comfortable layover; our layover guide explains how much time is realistic.
Best time to fly
Seasonal factors to weigh: at SEA, july through September has the clearest weather and the heaviest demand, including cruise-season traffic to Alaska. At DTW, lake-effect snow can slow winter operations.
Ground transport
Getting to and from DTW
Rideshare and taxis reach downtown Detroit in about 30 minutes; there is no rail service.
Getting to and from SEA
Link light rail runs from the terminal to downtown Seattle in roughly 40 minutes without road traffic.
Booking tips
Fares on routes with strong business demand rarely drop sharply at the last minute. Book once your dates are firm and review the 24-hour rule in case plans change.
Frequently asked questions
How long is the flight from Detroit to Seattle?
A typical DTW to SEA flight takes about 4 h 25 min, with a likely range of 4 h 05 min to 4 h 50 min. Actual time depends on wind, routing, aircraft and whether you connect.
How far is Seattle from Detroit by air?
The great-circle distance between DTW and SEA is about 1,920 miles (3,090 km).
Which airlines fly from Detroit to Seattle?
Delta Air Lines and Alaska Airlines have a major presence at DTW or SEA, and service varies by season. Ask us to check current nonstop and connecting options.
What is the time difference between Detroit and Seattle?
Seattle is 3 hours behind Detroit on standard time. Daylight saving time can change the gap for part of the year.
Are there other airports near Seattle?
Yes. Nearby alternatives include Portland (PDX). Comparing them can change both fare and travel time.
When is the best time to book DTW to SEA?
Domestic fares are often competitive one to three months ahead, while international trips benefit from more lead time. Compare several dates, since fares are priced flight by flight.
Explore related routes
More flights involving Detroit (DTW)
- Boston to DetroitBOS to DTW
- Detroit to AtlantaDTW to ATL
- Detroit to Los AngelesDTW to LAX
- New York to DetroitLGA to DTW
More flights involving Seattle (SEA)
- Atlanta to SeattleATL to SEA
- Austin to SeattleAUS to SEA
- Boston to SeattleBOS to SEA
- Dubai to SeattleDXB to SEA
- Houston to SeattleIAH to SEA
- London to SeattleLHR to SEA
Last reviewed October 22, 2026. FlighTicketHub provides general information; confirm details with the airline before you travel.