The cheapest times to fly from DTW to SEA are
- January 1st to March 4th
- August 6th to November 18th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DTW to SEA is late October. Prices can be as high as $1024 for Sunday flights during early to mid May, or as low as $280 for Tuesday flights around late October.
When to Fly to Seattle
Flying from Detroit, MI (DTW) to Seattle, WA (SEA) will usually cost between $305 to $460 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October with an average ticket price of $321. Due to high demand the most expensive time to fly is early to mid May, with an average price of $504. Planning your trip to low-cost times can easily save you $183 on economy flights and even more on first-class flights. Generally, any price below $385 can be considered a good price for a round-trip DTW to SEA flight.
See below for a graph of average weekly prices for the DTW to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the DTW to SEA flight is much cheaper than the average and costs much less than the average flight leaving from Detroit. The average price per mile (for a direct flight) is $0.12, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $68 (16%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $350. Return trip prices are from the SEA to DTW flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from DTW to SEA can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 4 hour 26 minutes may be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from DTW to SEA while comparing.
- 127 miles (204 km) away from SEA
- Usually 14.29% less expensive than SEA
- Nonstop flights available
Flight Questions Answered
Still have questions about flying from DTW to SEA? We’ve got answers.
Which airlines fly this route?
You can find 13 major airlines flying this route most often: Air Europa, Alaska, American, China Eastern, Delta, Emirates, Frontier, Hawaiian, JetBlue, Qatar Airways, Southwest, Spirit, United, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to Detroit Metro Wayne County Airport?
The distance between the two airports is roughly 1922 miles or 3093 kilometers.
How long does it take to fly from DTW to SEA?
The real-world flight time for a nonstop DTW to SEA flight is about 4 hour 26 minutes.
How many flights go between Detroit, MI and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 67 available flights from DTW to SEA.
Airport Location Info
|Origination airport name||Detroit Metro Wayne County Airport|
|Country||the United States|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Late and Early Flight Data
Flights from DTW to SEA tend to depart as late as the average flight. According to our recently updated data, 24% of flights departed 5 or more minutes late, and 11% of flights left 5 or more minutes early. On average you can expect to leave SEA heading for DTW about 7 minutes late. This does significantly impact arrival time, as the average landing time in Seattle, WA is about 2 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Delta: 8 minutes late
- Alaska: 2 minutes early
- Spirit: 19 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.