Best Deals on Flights from DTW to SEA: Your Guide to the Emerald City
Cheapest flight found
$174
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the Apr 2, 2026 departure — the cheapest date we found.
Price Behavior: DTW → SEA
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$174
Highest Fare
$259
Median Fare
$234
Price Spread
$85
Prices fluctuate moderately — tracking can help you catch dips.
Cheapest month to fly: April 2026 (from $174)
Most expensive month: July 2026 (from $259)
Biggest price drop caught: $45 between consecutive checks
Most frequent cheapest airline: Frontier
What This Means for You
Flights from Detroit to Seattle range from $174 to $259, a $85 spread across the months we track. If your dates are flexible, April 2026 tends to have the lowest fares. Prices move enough that tracking can save you money — drops often last only a few hours before the algorithm adjusts back up. We have caught drops as large as $45 between hourly checks on this route.
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From
Detroit (DTW)
To
Seattle (SEA)
Airport Information
Detroit (DTW)
Detroit Metropolitan Wayne County Airport (DTW) is a major international gateway and a primary hub for Delta Air Lines, known for its modern McNamara Terminal which features a stunning indoor tram and a colorful light tunnel. Located in Romulus, Michigan, the airport provides a wide array of dining options ranging from local Coney Island favorites to high-end bistros, ensuring travelers have plenty of choices before their long flight to the West Coast.
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, is the largest airport in the Pacific Northwest region and serves as the primary hub for Alaska Airlines and a major West Coast gateway for Delta. The airport has undergone significant recent renovations, including the spectacular International Arrivals Facility and an expanded North Satellite terminal, offering travelers a vibrant atmosphere filled with local Pacific Northwest art, live music performances, and views of the airfield.
Frequently Asked Questions
Which airlines fly non-stop from DTW to SEA?
Delta Air Lines and Alaska Airlines are the primary carriers offering consistent daily non-stop service between Detroit and Seattle.
How long is the average flight from Detroit to Seattle?
A direct flight typically takes between 4 hours and 45 minutes to 5 hours and 15 minutes, depending on wind speeds and aircraft type.
What is the best way to get from Sea-Tac to downtown Seattle?
The Sound Transit Link Light Rail is a cost-effective and efficient way to reach downtown from the airport, with trains running every 8-15 minutes throughout the day.
Is there a significant time difference between the two cities?
Yes, Seattle is in the Pacific Time Zone, which is three hours behind Detroit's Eastern Time Zone.
Does DTW offer parking for long-term travelers?
Yes, DTW offers several long-term parking options including the Big Blue Deck and the McNamara Parking Garage, as well as various private off-site lots with shuttle services.
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