Seattle to Denver Flight Route Information
| Travel Distance: | 1,023 Miles |
|---|---|
| Airlines Flying This Route: | Frontier Airlines, United Airlines, Alaska Airlines |
| Weekly Flights: | 405 |
| Avg. Flight Duration: | 2.39 Hours |
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10/31/2026 Find Cheap Flights from Seattle to Denver (SEA to DEN)
SEA - Seattle DEN - Denver 
Find Cheap Flights from Seattle to Denver (SEA to DEN)
Fares Starting from $113
SEA - Seattle DEN - Denver Great deal! This is the lowest price we've seen for this one way route in the last 12 hours. Prices may change and aren't guaranteed for all flights or dates. Click on the price to continue your search and check the latest available fare. Ref. id 202609~Ref:yPAccMhPBkGqxkHcV-8WMw
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Cheap Flights from Seattle to Denver - Compare & Book Our Best Deals
With over 54 daily departures from Seattle to Denver, this route offers great flexibility for different travel plans. Browse one-way fares from $112.98, round-trip fares from $203.99, and other affordable options across different budgets. Compare flight choices, explore schedules, and book the best Seattle to Denver deals that fit your budget and travel preferences.
Top Airlines that fly from Seattle to Denver
Cheap Flight Deals from Seattle to Denver
SEA Seattle Sat, Oct 31
DEN Denver
from $113
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SEA Seattle Fri, Oct 30
DEN Denver
from $130
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SEA Seattle Sat, Oct 17
DEN Denver
from $141
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SEA Seattle Tue, Oct 20
DEN Denver
from $141
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SEA Seattle Wed, Oct 28
DEN Denver
from $141
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SEA Seattle Sat, Nov 7
DEN Denver
from $141
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SEA Seattle Wed, Dec 16
DEN Denver
from $142
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SEA Seattle Thu, Oct 15
DEN Denver
from $147
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SEA Seattle Mon, Oct 19
DEN Denver
from $147
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SEA Seattle Thu, Oct 22
DEN Denver
from $147
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*All fares above were last found on: Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions. 202609~Ref:yPAccMhPBkGqxkHcV-8WMw
Insights about cheap flights from Seattle to Denver – Direct Flights, Duration & Best Travel Time
When it comes to booking cheap flights, having the right information at your fingertips can make all the difference. Dive into the insights for cheap flights from Seattle to Denver and enhance your travel experience!
Daily Flights
54
Cheapest Month
April
Avg. Flight Duration
2.39
Peak Season
October
Distance
1,023 miles
Direct Flights
1615
When is the Cheapest Time to Book Flights from SEA to DEN?
Explore data-powered insights and trends for flights from Seattle to Denver. Discover average fares, cheap months to fly, when to book, and plan smarter.
What’s the cheapest day of the week to fly from Seattle to Denver?‡
What is the cheapest month to fly from Seattle to Denver?‡
‡This information is based on historical data from the last 365 days.
Finding Affordable Flights from Seattle to Denver
- Plan Ahead - One of the keys to securing cheap flights from Seattle to Denver is to plan your trip well in advance. Airlines often offer lower prices for those who book tickets months ahead. Keep an eye on special promotions and sales events, which can yield significant savings.
- Flexibility is Key - Being flexible with your travel dates can also lead to substantial cost savings. Consider flying during off-peak seasons or on weekdays when prices tend to be lower.
- Set Price Alerts - To keep tabs on flight prices, consider setting up fare alerts. These alerts will notify you when fares from Seattle to Denver drop, giving you the opportunity to grab cheap deals.
- Consider Nearby Airports - If Denver has multiple airports, check the prices at each one. Sometimes, flying into a nearby airport and then taking a short train or bus ride to your destination can be a much cheaper option.
- Bundle and Save - Booking your flight and accommodation together as a package can often result in significant savings. CheapOair offers these bundled deals, so make sure to explore this option.
When should I book flights from SEA to DEN? ‡
‡Got flexible travel dates? Use our flight data from the past year to discover ideal time to fly from Seattle to Denver. Find out which months and days typically offer lower fares and let CheapOair search for the best options.
CheapOair provides the predicted prices for one-way trips or round-trips with a duration of 7 days for domestic and 14 days for international trips based on historical data and available flight information. Graphs are estimates only. Prices are subject to change and can't be guaranteed until ticketed.
Estimated price for
Round-trip
‡Graphs are estimates only. Based on historical data and available flight information. Prices are subject to change and cannot be guaranteed until ticketed.
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Insights About Flying from Seattle to Denver
Which is the high season to travel from Seattle to Denver?
The month of October is considered the high season for flying from SEA to DEN. Traveling during the high season can affect ticket prices and availability, making this data crucial for trip planning.
How many direct flights are available from SEA to DEN?
There are a total of 1615 direct flights from Seattle to Denver. For travelers seeking convenience and shorter travel times, this data is important when choosing flight options.
Which is the low season to travel from Seattle to Denver?
April is considered the low season for traveling from Seattle to Denver, Colorado. Travelers looking for cost-effective options and fewer crowds may consider traveling during this period.
How many daily flights are there between Seattle to Denver?
There are as many as 54 daily flights available for travelers between SEA to DEN. This data offers flexibility in choosing departure times that best suit your schedule.
Which is the busiest day for passengers flying between Seattle to Denver?
Monday are the busiest days for passengers flying between Seattle to Denver. Knowing the peak travel day can help you plan your trip to avoid overcrowded flights or airports.
At what time does the last flight depart to Denver?
The last flight to Denver typically departs between 12:00AM - 1:00AM. Travelers who prefer late-night departures will find this information valuable for planning their journey.
What percentage of travelers spent an average of 1 days in Denver, Colorado?
Approximately 40.42% of travelers spent an average of 1 days exploring Denver. This information can assist in planning the duration of your stay in Denver
What percentage of SEA to DEN flyers traveled with kids under 14?
About 7% of passengers on flights from Seattle to Denver were accompanied by children under the age of 14. This information is useful if you're planning a family trip and want to know how common it is to travel with young children on this route.
What percentage of Seattle to Denver travelers were over 60 years old?
A notable 14% of travelers were aged 60 or older. This statistic provides insights for senior travelers or those seeking a mature travel demographic.
What percentage of SEA to DEN travelers were millennials?
Millennials make up a significant portion of travelers on this route, accounting for 40% of all passengers. If you're a millennial looking to connect with like-minded travelers, this statistic might interest you.
What percentage of Seattle to Denver travelers were female?
Almost half of the passengers, approximately 49% were female. Knowing the gender distribution can be useful for solo female travelers or those interested in gender-related travel insights.
What percent of Seattle to Denver travellers booked first or business class?
6% of travelers booked first or business class on this route.
At what time the earliest flight departs from Seattle?
The earliest flight departs at 7:00AM - 8:00AM.
Which is the most popular airport for connecting flights between Seattle to Denver?
Spokane International Airport is the most popular airport for connecting flights between SEA to DEN.
On which days one can have the most flight options in Denver?
Monday offer the most flight options in Denver.
§
All flight facts are based on last 3 months' data except the highest and lowest booking months that are based on last 3 months' data.
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Cheap Flights from Seattle to Denver
Looking for flights from Seattle (SEA) to Denver (DEN)? Find affordable air travel deals on CheapOair and save big on air tickets online. Lying at an elevation of about 1 mile (5,280 feet from sea level), Denver earns its name as the Mile High City. While in Denver, don�t miss visiting the Black American West Museum & Heritage Center, Colorado State Capitol, Denver Art Museum, Denver Mint and the History Colorado Center. To reach Denver from Seattle, you can choose from top airlines such as, US Airways and United Airlines and Frontier Airlines for a safe and comfortable journey. The average time taken by a flight to cover the distance of 1,024 miles between the two cities is about two hours thirty minutes.
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