Route guide

Cheap Flights from Detroit to Seattle | EazAir

Travellers

Detroit to Seattle flight insights

Average flight time

~4h 40m (estimated)

DTW → SEA

Cheapest month

Based on cached fare history

Cheapest cached price

$198

Checking live fares…

Prices shown may not be current. Last checked: Sep 3, 2026.

Planning a trip from Detroit to Seattle? The average flight time on this route is ~4h 40m (estimated). The lowest fare we have cached for this route is $198 (last checked Sep 3, 2026).

Detroit to Seattle covers a straight-line distance of about 1,922 miles. Based on that distance, a nonstop flight would take approximately ~4h 40m (estimated). Actual flight time varies by airline, aircraft and routing.

Route Quick Facts

Quick facts for flights from Detroit to Seattle on Eazair
OriginDetroit (DTW)
DestinationSeattle (SEA)
Average Flight Time
Cheapest Month to Fly
Current Lowest Fare$198
Fares Last CheckedSep 3, 2026

Flight deals from Detroit to Seattle

Traveling from the Great Lakes to the Pacific Northwest covers a flight distance of roughly 1,920 miles. Direct flights from Detroit Metropolitan Wayne County Airport (DTW) to Seattle-Tacoma International Airport (SEA) typically take around four hours and forty-five minutes. Passengers heading west will cross three time zones, meaning an early morning departure from Michigan gets you into Washington State with plenty of daylight remaining. Several major carriers operate on the Detroit to Seattle route. Delta Air Lines maintains a major hub at DTW and frequently offers direct connections to SEA. Travelers can also fly this transcontinental path via connecting itineraries through carriers like Alaska Airlines, United Airlines, and American Airlines, which usually route through cities like Chicago, Denver, or Minneapolis. Summer represents the peak travel season for the Detroit to Seattle corridor, with July and August seeing high passenger volumes as travelers escape Midwestern humidity for mild Pacific coastal weather. Conversely, January and February see lighter passenger traffic along this specific flight path, making winter an excellent time to search for open seats. Late spring and early autumn provide a balanced travel window with manageable crowds boarding planes at DTW destined for SEA.

View of Seattle, a popular flight destination from Detroit

About Seattle

Popular areas to know in Seattle include Capitol Hill, Ballard, and Fremont.

Mild, wet winters and dry, mild summers — the Pacific Northwest's rainy reputation is strongest from October through April.

Frequently asked questions

How long is a flight from Detroit to Seattle?
A nonstop flight from Detroit to Seattle averages about four hours and forty-five minutes. Flights with layovers will extend your total travel time depending on the connecting airport.
Which airports serve flights from Detroit to Seattle?
Passengers flying from Detroit to Seattle will depart from Detroit Metropolitan Wayne County Airport (DTW) and land at Seattle-Tacoma International Airport (SEA).
Which airlines fly direct from Detroit to Seattle?
Delta Air Lines and Alaska Airlines regularly offer direct flights from Detroit to Seattle, providing nonstop service between the two metropolitan areas.
When is the best time to book flights from Detroit to Seattle?
For travel from Detroit to Seattle, booking your ticket at least four to six weeks in advance usually offers the most schedule options, especially during the peak summer months.
What is the busiest month to fly from Detroit to Seattle?
July is typically the busiest month for flights from Detroit to Seattle, as summer vacationers flock to the Pacific Northwest for the dry, sunny weather.
Which month has the lowest passenger volume for flights from Detroit to Seattle?
January usually sees the lowest passenger demand for travel from Detroit to Seattle, as winter weather patterns decrease leisure travel along this route.
What is the time difference when flying from Detroit to Seattle?
Seattle is three hours behind Detroit, so passengers flying from Detroit to Seattle should adjust their watches from Eastern Time to Pacific Time upon landing.
Do airlines flying from Detroit to Seattle charge for checked baggage?
Most legacy carriers flying from Detroit to Seattle charge a fee for checked bags in standard economy, though premium cabin tickets or specific airline loyalty statuses often include baggage allowances.
Where are common layovers on flights from Detroit to Seattle?
If you book an indirect flight from Detroit to Seattle, common layover cities include Chicago O'Hare, Minneapolis-St. Paul, and Denver International Airport.
What is the flight distance from Detroit to Seattle?
The flight distance from Detroit to Seattle is approximately 1,920 miles, crossing a large portion of the northern United States.
Are there early morning departures from Detroit to Seattle?
Yes, airlines flying from Detroit to Seattle typically offer morning departures, allowing travelers to arrive on the West Coast before noon local time.
How far is it from Detroit to Seattle?
The straight-line distance from Detroit to Seattle is about 1,922 miles.
What ID do I need to fly from Detroit to Seattle?
Since Detroit to Seattle is a domestic US flight, you'll need a REAL ID-compliant driver's license or another TSA-accepted form of ID, such as a valid US passport. A standard, non-compliant driver's license alone is no longer accepted at TSA checkpoints.
Which airlines operate flights from Detroit to Seattle?
Based on a recent live fare search, Southwest Airlines, American Airlines, United Airlines and Delta Air Lines had bookable flights on the Detroit to Seattle route.
What's the weather usually like in Seattle?
Mild, wet winters and dry, mild summers — the Pacific Northwest's rainy reputation is strongest from October through April.

Airline baggage policies

Baggage allowances differ significantly between fare classes (Basic/Light vs. Standard/Flex) and can change over time. Always verify the exact allowance for your specific fare with the airline before you fly.

General airline baggage policy reference
AirlineCabin bagChecked bag
Delta Air Lines1 carry-on + 1 personal item on most fares1 checked bag typically included on Main Cabin and above; Basic Economy usually excludes it
American Airlines1 carry-on + 1 personal item on most fares1 checked bag typically included on Main Cabin and above; Basic Economy usually excludes it
United Airlines1 carry-on + 1 personal item on most fares1 checked bag typically included on Economy and above; Basic Economy usually excludes it
Southwest Airlines1 carry-on + 1 personal item2 checked bags included on every fare — a long-standing, well-known Southwest policy
JetBlue Airways1 personal item on the cheapest (Blue Basic) fare; a carry-on is added on higher faresNot included on Blue Basic; typically included from Blue Plus and above
Alaska Airlines1 carry-on + 1 personal item on most fares1 checked bag typically included on Main and above; Saver fares usually exclude it
Spirit Airlines1 personal item included; a full-sized carry-on is a paid add-onNot included on the base fare — a paid add-on at every fare tier
Frontier Airlines1 personal item included; a full-sized carry-on is a paid add-onNot included on the base fare — a paid add-on at every fare tier

Travel tips

Arrive early for domestic flights

TSA generally recommends arriving at least 2 hours before a domestic departure, more at larger hub airports during peak travel periods.

Pack a mixed carry-on

Keep a change of clothes, chargers, and any essentials in your carry-on rather than only your checked bag, in case of a delay or a bag that doesn't arrive with you.

Ease jet lag on longer routes

On longer cross-country flights, adjusting your sleep schedule a day or two before departure and staying hydrated in flight can reduce jet lag on arrival.

Screenshot your confirmation

Save a screenshot or PDF of your booking confirmation and boarding pass before you travel, in case you lose signal or battery at the airport.

Check in online when it opens

Most airlines open online check-in 24 hours before departure — checking in early can help with seat selection and, on some airlines, boarding group assignment.