Detroit Metropolitan to Seattle-Tacoma
1922 miles great-circle distance, typically flown in 4h 16m with 5 airlines operating direct service from Detroit Metropolitan (DTW) to Seattle-Tacoma (SEA). Cheapest fares are usually in January (around $249 return), with peak prices in August (around $747). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Detroit Metropolitan
Detroit Metropolitan Wayne County is Delta's principal Midwest hub. Two terminals — McNamara (Delta) and North Terminal (Spirit, AA, UA, others) — are connected airside through the post-security ExpressTram. There is no commuter rail to downtown Detroit; DDOT bus 125 runs from the airport to Rosa Parks Transit Center in around 60 minutes. International long-haul to Europe is dense (Air France, KLM, Lufthansa) and to Asia (Delta direct to Tokyo Narita) — making DTW one of the strongest secondary US gateways for transpacific travel.
Arriving in Seattle
Seattle-Tacoma is 14 miles south of downtown Seattle, with the Link Light Rail Red Line running directly from the airport station to Westlake in 38 minutes for $3.25 — possibly the simplest big-city airport transfer in the United States. Fares peak in mid-summer (June–August) and around Bumbershoot/Labor Day; January and February are the cheapest months despite winter rain.
Who flies DTW to SEA?
| Airline | IATA | Flight time | Cabin |
| Delta Air Lines | DL | 4h 16m | Economy |
| Spirit Airlines | NK | 4h 16m | Economy |
| Southwest Airlines | WN | 4h 16m | Economy |
| American Airlines | AA | 4h 16m | Economy |
| United Airlines | UA | 4h 16m | Economy |
5 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly DTW→SEA
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Detroit to Seattle FAQs
Direct flights from Detroit Metropolitan (DTW) to Seattle-Tacoma (SEA) take approximately 4h 16m for the 1922-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $249. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
5 carriers operate direct service from Detroit Metropolitan (DTW) to Seattle-Tacoma (SEA): Delta Air Lines, Spirit Airlines, Southwest Airlines, American Airlines and United Airlines. Frequencies vary by season and carrier — Delta Air Lines typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Seattle-Tacoma (SEA) is the primary international airport for Seattle. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.