Cheap Flights from Denver to Seattle
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
Swipe up to view more
>
>
>
>
>
Flights from Denver to Seattle
Cheapest airlines flights from Denver to Seattle
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Find cheap flights from Denver to Seattle
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
-
Round-trip
-
One way
-
-
Cheapest nonstop
DEN 19:493h 5mNonstopSEA 21:54Denver - Seattle | Tue, Aug 12 | Delta Air Lines
SEA 07:102h 47mNonstopDEN 10:57Seattle - Denver | Tue, Aug 19 | Delta Air LinesUS$119 US$18837% OFF37% OFFUS$188 US$119 -
DEN 21:363h 6mNonstopSEA 23:42Denver - Seattle | Sat, Jul 12 | Frontier Airlines
SEA 06:252h 49mNonstopDEN 10:14Seattle - Denver | Sat, Jul 19 | Frontier AirlinesUS$122 US$18835% OFF35% OFFUS$188 US$122 -
DEN 06:502h 55mNonstopSEA 08:45Denver - Seattle | Sat, Aug 9 | Delta Air Lines
SEA 18:002h 44mNonstopDEN 21:44Seattle - Denver | Wed, Aug 13 | Delta Air LinesUS$130 US$18831% OFF31% OFFUS$188 US$130
-
DEN 06:003h 1mNonstopSEA 08:01Denver - Seattle | Fri, Aug 15 | Hawaiian Airlines
SEA 08:132h 57mNonstopDEN 12:10Seattle - Denver | Sat, Aug 23 | Hawaiian AirlinesUS$13230% OFFUS$188 US$132 -
DEN 22:293h 5mNonstopSEA 00:34Denver - Seattle | Thu, Jun 26 | Frontier Airlines
SEA 19:482h 53mNonstopDEN 23:41Seattle - Denver | Thu, Jul 3 | Frontier AirlinesUS$13627% OFFUS$188 US$136
-
DEN 06:502h 55mNonstopSEA 08:45Denver - Seattle | Tue, Aug 5 | Delta Air Lines
SEA 07:102h 47mNonstopDEN 10:57Seattle - Denver | Tue, Aug 12 | Delta Air LinesUS$1738% OFFUS$188 US$173
-
DEN 19:353h 7mNonstopSEA 21:42Denver - Seattle | Tue, Jul 29 | Delta Air Lines
SEA 05:305h 28m1 stopsDEN 11:58Seattle - Denver | Tue, Aug 5 | Delta Air LinesUS$12434% OFFUS$188 US$124
-
DEN 19:353h 7mNonstopSEA 21:42Denver - Seattle | Tue, Jul 15 | Delta Air Lines
SEA 05:305h 28m1 stopsDEN 11:58Seattle - Denver | Wed, Jul 16 | Delta Air LinesUS$12633% OFFUS$188 US$126
-
DEN 06:502h 55mNonstopSEA 08:45Denver - Seattle | Wed, Jul 30 | Delta Air Lines
SEA 13:307h 41m1 stopsDEN 22:11Seattle - Denver | Tue, Aug 5 | Delta Air LinesUS$12733% OFFUS$188 US$127
-
DEN 18:105h 56m1 stopsSEA 23:06Denver - Seattle | Sat, Jul 19 | Delta Air Lines
SEA 18:002h 44mNonstopDEN 21:44Seattle - Denver | Wed, Jul 23 | Delta Air LinesUS$13628% OFFUS$188 US$136
-
DEN 13:0017h 25m1 stopsSEA Invalid DateDenver - Seattle | Thu, Jun 19 | Normal Airline
SEA 15:006hNonstopDEN 16:00Seattle - Denver | Sat, Jun 21 | Normal AirlineFind More FlightsFind More Flights
-
Cheapest nonstop
DEN 22:293h 5mNonstopSEA 00:34Denver - Seattle | Mon, Aug 4 | Frontier AirlinesUS$56 US$19571% OFF71% OFFUS$195 US$56
-
DEN 16:443h 2mNonstopSEA 18:46Denver - Seattle | Sat, Aug 2 | Frontier AirlinesUS$60 US$19570% OFF70% OFFUS$195 US$60
-
DEN 06:502h 55mNonstopSEA 08:45Denver - Seattle | Tue, Aug 5 | Delta Air LinesUS$60 US$19569% OFF69% OFFUS$195 US$60
-
DEN 22:152h 50mNonstopSEA 00:05Denver - Seattle | Sat, Aug 2 | Southwest AirlinesUS$6567% OFFUS$195 US$65 -
DEN 06:302h 59mNonstopSEA 08:29Denver - Seattle | Wed, Jun 25 | Delta Air LinesUS$6666% OFFUS$195 US$66
-
DEN 06:003h 1mNonstopSEA 08:01Denver - Seattle | Wed, Aug 13 | Hawaiian AirlinesUS$6865% OFFUS$195 US$68
-
DEN 06:402h 54mNonstopSEA 08:34Denver - Seattle | Wed, Aug 6 | Delta Air LinesUS$6865% OFFUS$195 US$68
-
DEN 21:363h 6mNonstopSEA 23:42Denver - Seattle | Tue, Jul 15 | Frontier AirlinesUS$14128% OFFUS$195 US$141
-
DEN 21:363h 8mNonstopSEA 23:44Denver - Seattle | Tue, Jun 17 | Frontier AirlinesUS$16316% OFFUS$195 US$163
-
DEN 21:363h 6mNonstopSEA 23:42Denver - Seattle | Wed, Jul 9 | Frontier AirlinesUS$1798% OFFUS$195 US$179
-
DEN 13:0017h 25m1 stopsSEA Invalid DateDenver - Seattle | Thu, Jun 19 | Normal AirlineFind More FlightsFind More Flights
-
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Denver to Seattle Flight Information
| Cheapest one-way flight price | $55 |
|---|---|
| Cheapest round-trip ticket price | $118 |
| Off-season for travel | April |
| Peak season for travel | March |
| Flight distance | 1,644.78 km |
| Average flight time | 3 hours |
| Popular airline | Alaska Airlines |
When is the cheapest time to book flights from Denver to Seattle?
We monitor flight fares to help you find the best deals effortlessly
Cheapest flights
From price
Search
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
-
When are flight tickets from Denver (DEN) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from Denver to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Denver (DEN) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around $223. -
How long does it take to fly from Denver (DEN) to Seattle (SEA) and what is the distance?
It takes around 3 hours to fly from Denver (DEN) to Seattle (SEA). -
What are the most popular airlines that fly from Denver (DEN) to Seattle (SEA)?
Airlines with flights from Denver (DEN) to Seattle (SEA): All Nippon Airways, WestJet, Southwest Airlines, United Airlines, Volaris, Alaska Airlines, Icelandair, Hawaiian Airlines and Frontier Airlines.
How to find a cheap flight from Denver to Seattle
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Denver to Seattle. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Denver to Seattle ticket.
Tap "Date" on flight search bar to scan through the calender for Denver to Seattle airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Mon, Aug 4 at US$56 for one-way flights.
Compare cheap Denver to Seattle flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Denver to Seattle. The cheapest airline operating is Frontier Airlines.
Set up a Price Alert
By setting up a Price Alert for your Denver to Seattle route, you can easily track the price of your airline tickets from Denver to Seattle without manually checking every day.
Don't miss cheap Denver to Seattle flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Denver to Seattle to get exclusive deals for you.
More Travel Options
-
Top Routes from Denver
-
Top Routes to Seattle
-
Popular Airlines
- Return flights from Denver to Lima
- Direct flights from Denver to Detroit
- Direct flights from Denver to Mexico City
- Direct flights from Denver to Los Angeles
- Cheap flights from Denver to Port Sudan
- Cheap flights from Denver to New York
- Cheap flights from Denver to Miami
- Cheap flights from Denver to Las Vegas
- Return flights from Denver to Seattle
- Return flights from Denver to Washington D.C.
- Direct flights from Tokyo to Seattle
- Cheap flights from Los Angeles to Seattle
- Cheap flights from Taipei to Seattle
- Return flights from Ho Chi Minh City to Seattle
- Cheap flights from Ulaanbaatar to Seattle
- Cheap flights from Shanghai to Seattle
- Cheap flights from Calgary to Seattle
- Return flights from New York to Seattle
- Return flights from San Francisco to Seattle
- Return flights from Seoul to Seattle