$68+ Cheap flights from Seattle (SEA) to Colorado
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Seattle to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Colorado
Keep the following information in mind while searching for Seattle to Colorado flight deals. Data was last updated April 15, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $136 (Cheapflightsfares) |
One-way from | $74 (Booking.com) |
Popular in | December |
Cheapest in | September |
Average price | $215 |
Good round-trip deal | $213 or less |
Good one-way deal | $130 or less |
Find flight deals from Seattle to Colorado
Cheapest flights from Seattle to ColoradoExplore the most affordable flight options available from Seattle to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.
Explore the most affordable flight options available from Seattle to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Expedia deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Hawaiian Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2025.
Use the filters below to find and compare flights from Seattle to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Tue 5/6
6:00 am-9:51 am
Nonstop2h 51m
Denver Intl
Wed 5/7
9:43 pm-11:49 pm
Nonstop3h 06m
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Tue 5/6
6:00 am-9:51 am
Nonstop2h 51m
Denver Intl
Tue 5/13
8:20 am-12:29 pm
1 stop5h 09m
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Wed 5/14
6:00 pm-9:47 pm
Nonstop2h 47m
Denver Intl
Tue 5/20
6:45 pm-8:43 pm
Nonstop2h 58m
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Wed 5/14
5:00 am-8:40 am
Nonstop2h 40m
Denver Intl
Wed 5/21
8:20 am-2:00 pm
1 stop6h 40m
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Tue 7/1
8:06 am-11:53 am
Nonstop2h 47m
Denver Intl
Wed 7/9
6:00 am-8:01 am
Nonstop3h 01m
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Tue 5/13
3:25 pm-7:11 pm
Nonstop2h 46m
Denver Intl
Tue 5/20
5:20 am-11:49 am
1 stop7h 29m
SeattleColorado Springs
SEA - COS
SEACOS
Seattle/Tacoma Intl
Thu 7/10
9:55 am-5:13 pm
1 stop6h 18m
Colorado Springs
Mon 7/14
8:00 am-2:43 pm
1 stop7h 43m
SeattleDenver
SEA - DEN
SEADEN
Seattle/Tacoma Intl
Fri 5/16
8:23 pm-12:05 am
Nonstop2h 42m
Denver Intl
Sun 5/18
6:00 am-7:59 am
Nonstop2h 59m
SeattleColorado Springs
SEA - COS
SEACOS
Seattle/Tacoma Intl
Fri 5/30
6:00 am-5:21 pm
2 stops10h 21m
Colorado Springs
Fri 6/6
5:45 pm-2:25 pm
2 stops21h 40m
SeattleColorado Springs
SEA - COS
SEACOS
Seattle/Tacoma Intl
Wed 5/21
7:00 am-5:54 pm
2 stops9h 54m
Colorado Springs
Wed 5/28
6:30 pm-10:30 pm
1 stop5h 00m
Best time to book a flight from Seattle to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Seattle with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Colorado
What is the cheapest month to book a flight from Seattle to Colorado?
Currently, October is the cheapest month in which you can book a flight from Seattle to Colorado (average of $197). Flying from Seattle to Colorado in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to CO?
Find hourly flight availability from Seattle to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Colorado as you normally would.
Weekly flight availability from Seattle to Colorado
Explore weekly flight availability from Seattle to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 15, 2025.
The most flights from SEA to USCO are scheduled on a Tuesday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).
Rainfall in Colorado by month
Plan your trip to Colorado by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.
Temperature in Colorado by month
Plan your trip to Colorado by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated April 15, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Seattle to Colorado by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Anonymous,Aug 2024
SEA - LAS
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Anonymous,Aug 2024
SEA - LAS
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Anonymous,Aug 2024
SEA - LAS
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Anonymous,Aug 2024
SEA - LAS
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Anonymous,Aug 2024
SEA - LAS
Food
Overall
Entertainment
Comfort
Crew
Boarding
Reviews
Anonymous,Aug 2024
SEA - LAS
Related info for your journey
Find useful and relevant information for your journey from Seattle to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Seattle to Colorado
Discover the top 7 airlines that operate flights from Seattle to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$143 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$219 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$102 | Average$367 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$118 | Average$385 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$147 | Average$444 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$148 | Average$510 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$176 | Average$407 | FlexibilityNo cancel fee | On-time71% |