Are there nonstop flights from Denver (DEN) to Seattle (SEA)?

Yes. Southwest Airlines, United Airlines, Delta Air Lines, Frontier Airlines, Delta Connection, Alaska Airlines fly this route. Flight time is about 2h 26m.

What is the fastest connection from Denver (DEN) to Seattle (SEA)?

via Idaho Falls ≈ 2h 56m, via Pasco ≈ 2h 56m, via Jackson ≈ 2h 56m (estimated flying time, excluding layovers).

How many miles is an award flight from Denver (DEN) to Seattle (SEA)?

from 15,000 JAL miles, from 15,000 ANA miles (economy, one way, based on the published award charts).

Denver → Seattle

Denver International Airport (DEN) to Seattle–Tacoma International Airport (SEA)・1,645 km

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Nonstop flights available (6 airlines). Flight time about 2h 26m. Nonstop return flights also operate.

With milesJAL 15,000 miles+ (nonstop)ANA 15,000 miles+ (nonstop)Economy, one way, estimate. Tap a connection for miles by cabin.

Earn miles withANA Card (official)JAL Card (official)

Nonstop flights

Award miles (one way, estimate)

JAL Mileage Bank — partner airline award
AS only · total distance ≈ 1,022 mi (band 1,001–2,000) · close to a band boundary
Economy
15,000
Business
30,000
ANA Mileage Club — partner award
North America ⇔ North America (one way)
Economy
15,000
Business
27,500
First
45,000

Estimates from the airlines' published award charts (as of 2026-11-02). Seat availability, fuel surcharges and stopover rules are not included — always check with the airline before booking.

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Best places to connect

54 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.

Related routes

Nonstop from Denver

Nonstop to Seattle from other airports

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