Direct (non-stop) flights Denver (DEN) - Seattle (SEA)

"With a duration of 3h 27min, this direct route is managed by 5 airline(s)

Search flights

Main
DEN-SEA

United States

DEN Denver

United States

SEA Seattle

Distance 1028 miles (1654 km)

Flight time 3h 27min

Airlines with Direct Flights from Denver to Seattle

Denver International Airport (DEN) is one of the busiest airports in the United States, serving millions of passengers every year. Seattle-Tacoma International Airport (SEA), also known as Sea-Tac, is another major hub that connects travelers to various destinations.

If you are planning a trip from Denver to Seattle, it's important to know which airlines offer direct flights for a convenient and time-saving travel experience. Here are some of the airlines that operate nonstop flights on this popular route:

United Airlines

United Airlines offers multiple daily nonstop flights from Denver to Seattle, providing travelers with a range of options to suit their schedules. With United's renowned customer service and convenience, passengers can enjoy a smooth journey between these two vibrant cities.

Southwest Airlines

Southwest Airlines is another popular choice for travelers flying from Denver to Seattle. Known for its affordable fares and excellent customer service, Southwest operates several nonstop flights daily, making it a convenient option for both business and leisure travelers.

Frontier Airlines

Frontier Airlines also offers nonstop flights between Denver and Seattle. With their low-cost fares and multiple flight options, Frontier allows travelers to choose the best times for their journey while enjoying a comfortable and hassle-free experience.

Alaska Airlines

Alaska Airlines is a renowned carrier serving destinations across the United States and beyond. With their direct flights from Denver to Seattle, passengers can rely on Alaska Airlines for a seamless travel experience, along with excellent in-flight service and amenities.

These major airlines provide travelers with a wide array of choices when flying between Denver and Seattle. From full-service carriers like United Airlines and Alaska Airlines to low-cost options such as Southwest Airlines and Frontier Airlines, passengers can choose the airline that best meets their needs and preferences.

When booking your flight, be sure to check each airline's website for the most up-to-date schedules and fares. Remember to pack your essentials, arrive at the airport on time, and enjoy your flight from Denver to Seattle!

Alaska Airlines business available	Su Mo Tu We Th Fr Sa	business available	4-5 daily flights
Delta Air Lines business available	Su Mo Tu We Th Fr Sa	business available	3 daily flights
Frontier Airlines low cost airline	Su Mo Tu We Th Fr Sa	low cost airline	1 daily flights
United Airlines	Su Mo Tu We Th Fr Sa		4-5 daily flights
Southwest Airlines low cost airline	Su Mo Tu We Th Fr Sa	low cost airline	3-4 daily flights

Direct Flights Schedule

Airline	Flight	Mon	Tue	Wed	Thu	Fri	Sat	Sun
Alaska Airlines	AS 643	Su 07:00	Mo 07:00	Tu 07:00	We 07:00	Th 07:00	Fr 07:00	Sa 07:00
Alaska Airlines	AS 682	Su 11:45	Mo 11:45	Tu 11:45	We 11:45	Th 11:45	Fr 11:45	Sa 11:45
Alaska Airlines	AS 620	Su —	Mo 14:55	Tu 14:55	We 14:55	Th 14:55	Fr 14:55	Sa 14:55
Alaska Airlines	AS 556	Su 17:30	Mo 17:30	Tu 17:30	We 17:30	Th 17:30	Fr 17:30	Sa —
Alaska Airlines	AS 642	Su —	Mo —	Tu —	We —	Th —	Fr —	Sa 19:55
Alaska Airlines	AS 1474	Su 20:20	Mo 20:20	Tu 20:20	We 20:20	Th 20:20	Fr 20:20	Sa —
Delta Air Lines	DL 2061	Su 06:20	Mo 06:20	Tu 06:20	We 06:20	Th 06:20	Fr 06:20	Sa 06:20
Delta Air Lines	DL 1037	Su 12:32	Mo 12:32	Tu 12:32	We 12:32	Th 12:32	Fr 12:32	Sa 12:32
Delta Air Lines	DL 1396	Su 19:50	Mo 19:50	Tu —	We —	Th 19:50	Fr 19:50	Sa —
Delta Air Lines	DL 3639	Su —	Mo —	Tu 19:55	We 19:55	Th —	Fr —	Sa 19:55
Frontier Airlines	F9 423	Su 19:27	Mo 09:08	Tu 09:08	We —	Th 19:16	Fr —	Sa —
United Airlines	UA 1077	Su 08:04	Mo —	Tu —	We 08:00	Th 08:04	Fr 08:04	Sa —
United Airlines	UA 509	Su 11:37	Mo 11:23	Tu 11:23	We 11:37	Th 11:37	Fr 11:37	Sa 11:37
United Airlines	UA 530	Su —	Mo 13:45	Tu 13:45	We —	Th —	Fr —	Sa —
United Airlines	UA 450	Su 16:14	Mo —	Tu —	We 16:12	Th 16:14	Fr 16:14	Sa 16:14
United Airlines	UA 2363	Su —	Mo 16:16	Tu 16:16	We —	Th —	Fr —	Sa —
United Airlines	UA 302	Su 19:22	Mo 19:10	Tu 19:10	We 19:22	Th 19:22	Fr 19:22	Sa 19:22
United Airlines	UA 2651	Su 20:57	Mo 20:57	Tu 20:57	We 20:57	Th 20:57	Fr 20:57	Sa 20:57
Southwest Airlines	WN 4004	Su —	Mo —	Tu —	We 05:45	Th —	Fr —	Sa —
Southwest Airlines	WN 4005	Su —	Mo 06:00	Tu 06:15	We —	Th —	Fr —	Sa —
Southwest Airlines	WN 2315	Su 07:45	Mo —	Tu —	We —	Th 08:35	Fr 08:35	Sa —
Southwest Airlines	WN 1492	Su —	Mo —	Tu —	We 09:00	Th —	Fr —	Sa —
Southwest Airlines	WN 3411	Su —	Mo —	Tu 11:45	We —	Th —	Fr —	Sa —
Southwest Airlines	WN 388	Su —	Mo 12:45	Tu —	We —	Th —	Fr —	Sa —
Southwest Airlines	WN 2003	Su —	Mo —	Tu —	We —	Th —	Fr —	Sa 13:20
Southwest Airlines	WN 3396	Su —	Mo —	Tu —	We 14:00	Th —	Fr —	Sa —
Southwest Airlines	WN 1632	Su 18:05	Mo —	Tu —	We —	Th 15:10	Fr 15:10	Sa 16:30
Southwest Airlines	WN 489	Su —	Mo —	Tu 18:55	We —	Th —	Fr —	Sa —
Southwest Airlines	WN 1862	Su —	Mo 19:35	Tu —	We 21:30	Th —	Fr —	Sa —
Southwest Airlines	WN 2434	Su 22:35	Mo —	Tu —	We —	Th 22:15	Fr 22:15	Sa 19:35
Southwest Airlines	WN 1547	Su —	Mo —	Tu 22:00	We —	Th —	Fr —	Sa —
Southwest Airlines	WN 1644	Su —	Mo 22:55	Tu —	We —	Th —	Fr —	Sa —

Direct flight fare trends between Denver and Seattle

If you're in pursuit of the most economical travel option, consider a non-stop flight route from Denver International Airport to Seattle-Tacoma International Airport, where fares can dip as low as 114€, especially during the budget-friendly month of September. These fare averages for direct journeys connecting Denver International Airport (DEN) and Seattle-Tacoma International Airport (SEA) are computed based on real-time user inquiries, utilizing the lowest monthly ticket prices available for round-trip adult fares. Keep in mind that the presented prices are subject to variation depending on the depth of data accessible for this specific route.

For travelers with an eye for savings, this is an opportunity not to be missed. Booking your non-stop flight during September could mean substantial savings, with the chance to secure fares as attractive as 114€. These figures represent the culmination of countless user searches, with our calculations hinging on the lowest monthly round-trip rates for adult passengers. It's essential to acknowledge the potential for price fluctuations based on the data richness concerning this specific flight path.

€233 Approximately

€321 Jan

€261 Feb

€274 Mar

€295 Apr

€375 May

€385 Jun

€209 Jul

€122 Aug

€116 Sep

€120 Oct

€120 Nov

€213 Dec

Approximate costs for flights between Denver International Airport (DEN) and Seattle-Tacoma International Airport (SEA)

Departing from Denver International Airport (DEN)

Denver International (DEN) ranks as the third largest airport in the United States.

Show all flight from BCN →

Arriving to Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) is a large airport in United States.

Show all flights from SEA →

Best in Denver

Cheap car rentals in Denver

Travel on your terms, adapting seamlessly to sudden shifts or preferences.

Search cars

Best hotel offer in Denver

-70% Discounted Hotels

Excursions & Activities in Denver

Engage with a local tour specialist or pre-book a museum ticket.

Book an Excursion

The kinds of planes you can expect on this route

Listed below are the aircraft varieties employed for this route, complete with their seat capacity and the classes they offer.

Boeing 737-900 (winglets) Passenger/BBJ3
Alaska Airlines

178 seats (all economy)
Boeing 737-800 (winglets) Passenger/BBJ2
Alaska Airlines

174 seats (all economy)
Boeing 737MAX 9 Passenger
Alaska Airlines

178 seats (all economy)
Boeing 737-900 Passenger
Alaska Airlines

181 seats (all economy)
Boeing 737-700 Passenger
Alaska Airlines

124 seats (all economy)
Code 223
Delta Air Lines

130 seats (all economy)
Code 221
Delta Air Lines

109 seats (all economy)
Embraer 175 (Enhanced Winglets)
Delta Air Lines

73 seats (all economy)
A320neo
Frontier Airlines

186 seats (all economy)
Boeing 737MAX 9 Passenger
United Airlines

178 seats (all economy)
Boeing 737-800 Passenger
United Airlines

165 seats (all economy)
Airbus A319
United Airlines

126 seats (all economy)
Boeing 737-900 Passenger
United Airlines

179 seats (all economy)
Airbus A320
United Airlines

150 seats (all economy)
Boeing 737-700 (winglets) Passenger/BBJ1
Southwest Airlines

143 seats (all economy)
Boeing 737MAX 8 Passenger
Southwest Airlines

168 seats (all economy)
Boeing 737-800 Passenger
Southwest Airlines

155 seats (all economy)
Boeing 737-800 (winglets) Passenger/BBJ2
Southwest Airlines

175 seats (all economy)

Denver - Seattle: Flight information

For your convenience, we have assembled the main information regarding this flight.

Cheapest flight found
116€
Average flight time
3:27 h
Cheapest month for a flight
September
Most popular airline
Alaska Airlines
Flights per week
35

Domestic flights most in demand from Denver International Airport

Dallas and Fort Worth

261 Flights scheduled next month

Chicago

255 Flights scheduled next month

Atlanta

216 Flights scheduled next month

New York City

184 Flights scheduled next month

Newark

182 Flights scheduled next month

Miami

179 Flights scheduled next month

FAQ about direct flights from Denver International Airport to Seattle-Tacoma International Airport

What is the flight duration from Denver International Airport to Seattle-Tacoma International Airport?

Typically, flights from Denver International Airport to Seattle-Tacoma International Airport take around 3h 27min on average.

How many airlines offer non-stop flights from Denver to Seattle?

There are 5 airlines that offer nonstop flights to Seattle-Tacoma International Airport (SEA). These airlines, including Alaska Airlines, Delta Air Lines, Frontier Airlines, United Airlines, Southwest Airline, provide convenient and direct travel options for passengers looking to reach their destination swiftly without layovers.

What is the average price of airfare from Denver to Seattle?

You'll discover the lowest fare for a direct flight between Denver International Airport and Seattle-Tacoma International Airport at just 114€, and this budget-friendly rate is usually up for grabs during September. Conversely, as we head into June, flight prices tend to ascend, reaching an average of 380€ for a non-stop journey.

Which airline is the top choice for travelers on this route?

For travelers seeking non-stop journeys between Denver and Seattle, Alaska Airlines is the airline that stands out.

What's the total flying distance from Denver to Seattle?

The approximate distance between Denver and Seattle is about 1654 kilometers.

Our advantages

100% Free

Start saving immediately with EcoFly

Book with Flexibility

Organize your trips early and secure flights free from change fees.

Travel smart

With insightful data and detailed charts on our platform, we simplify the travel decision-making process.

Jessica

Eco-Fly has completely transformed the way I travel! Not only have I been able to secure affordable tickets, but the whole booking process is so seamless. Highly recommended

Liam

As a frequent traveler, I've used numerous platforms, but Eco-Fly stands out. Their deals are unmatched, and the interface is user-friendly. A definite game-changer.

Elena

Aisha

stumbled upon Eco-Fly while looking for budget flights, and it's now my go-to site. It's efficient, provides fantastic options, and ensures I save on every trip.

Sasha

Eco-Fly has made traveling on a budget so much more accessible. The variety of options and clear price breakdowns make the process stress-free.

Grace H.

What I love most about Eco-Fly is the transparency. No hidden fees, and the prices truly are the best out there. Five stars from me!

Tyrone

Booking my flights has never been easier. With Eco-Fly, I get the best prices, and the search filters help narrow down the perfect flight options for my schedule.