Compare Cheap Flights from Seattle to Denver
Search, Compare and Book
Why Packed Bag?
Search The Most Trusted Sites
Lowest Fares Guaranteed
24/7 Support
Round Trip Flights from Seattle to Denver
Last updated on Thursday 04/24/2025 at 05:00 AM, the fares mentioned above are for flight tickets and inclusive of fuel surcharges, service fee and taxes. Based on historical data, these fares are subject to change without prior notice and cannot be guaranteed at the time of booking. Kindly go through our terms and conditions before booking.
Book Seattle To Denver Flights
With 14,000 acres of park, Historic landmarks, a lively culture, beautiful mountain scenes, and a great place for outdoor activities, Denver calls out millions of tourists from all over the world. This city is famous for its world-famous concert venues, Zoo, Aquarium, Museums, gardens, and mountains. The most famous attraction near this city the Rocky Mountain National Park is an ideal place for adventurers located 55 miles northwest of Denver. Here you can go for a hike, scenic drive, camping, fishing, trek to Long's peaks, and witness exceptional scenery, and wildlife. The Denver Museum of Nature & Science is a treasured landmark in this city, a must-visit place known for exhibitions, infinity theatre, planetarium, discovery zone, and many more. Here you can see dinosaur fossils, Egyptian mummies, gems and minerals, wildlife, dioramas, and more. If you are traveling with kids then it is best to take them to the discovery zone where they explore and learn through scientific experiments art projects and building activities. There are numerous other attractions and activities this city has to offer making it one of the best places on earth for vacations.
Tourists travel to Denver from Seattle to experience its weather, outdoor activities, cultural attractions, fine dining, and for its thriving job market. Denver is a year-round city, however, June through August is the busiest time offering warm weather and numerous activities to engage with. The low season in Denver is from April to May and October to mid-December offering low prices on hotels and flights. If you are searching for cheap flight tickets to Denver, compare and book one at Packedbag. Seattle to Denver flights operate from Seattle-Tacoma International Airport (SEA) which connects with Denver International Airport (DEN). There are both direct and connecting flights on the SEA and DEN routes helping passengers to choose the best option for their travel plans. Alaska, United, Delta, American, Frontier, and Southwest, are the airlines that serve this route offering faster connectivity.
If you are planning a trip to Denver, you can compare and book cheap flight tickets with Packedbag. For more information regarding flights from Seattle to Denver, you can contact our customer service team by phone or email. We are available 24/7 to assist you regarding cheap airfares, ongoing deals, and flight booking.
Finding Cheap Flights From Seattle To Denver : Frequently Asked Questions
-
How much are round-trip flights from Seattle to Denver?
Average cost of a round-trip flight from Seattle to Denver is around $350.
-
Which upcoming date is cheapest to fly from Seattle to Denver?
In the next 90 days, flights from Seattle to Denver on will be the cheapest on June 08, 2025, May 12, 2025, and May 12, 2025.
-
What?s the cheapest day of the week to fly from Seattle to Denver?
On an average, flights from Seattle to Denver tend to be cheapest on Friday.
-
Which airlines offers the cheapest fares from Seattle to Denver?
At the moment, FRONTIER AIRLINES and ALASKA AIRLINES offer the cheapest flights from Seattle to Denver.
-
When is the peak season for traveling from Seattle to Denver?
June to August is the peak season to travel from Seattle to Denver.
-
When does the first flight depart from Seattle to Denver?
The first flight from Seattle to Denver departs at 05:14 AM.
-
When does the last flight from Seattle to Denver depart?
The last flight from Seattle to Denver departs at 08:20 PM.
-
Cheapest Months to fly to Denver
The cheapest months to visit Denver are from June through August.
* The mentioned flight facts are based on the last 3 months' data. Information regarding the highest and lowest booking months is based on the last 12 months' data.
Major Carriers Operating Flights From Seattle To Denver
ALASKA AIRLINES
$145
$305
UNITED AIRLINES
$168
$313
AMERICAN AIRLINES
$208
$493
Low Cost Carriers Operating Flights From Seattle To Denver
FRONTIER AIRLINES
$97
$181
ALASKA AIRLINES
$145
$305
UNITED AIRLINES
$168
$313
Inspiration to Escape the Mundane
Check out exciting travel stories, travel guides and tips to inspire your next great adventure.
-
Apr 22, 2025
How to Find the Cheapest Route to Little Rock
How to Find the Cheapest Route to Little Rock
-
Apr 22, 2025
Coachella Valley Music & Arts Festival 2025 - Travel, Accommodation & More
Coachella Valley Music & Arts Festival 2025 - Travel, Accommodation & More
-
Apr 22, 2025
No More Free Checked Bags for Most Travelers in Southwest Airlines
No More Free Checked Bags for Most Travelers in Southwest Airlines
-
Apr 18, 2025
Airlines That Are Revolutionizing Economy Class Travel in 2025
Airlines That Are Revolutionizing Economy Class Travel in 2025