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$56+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DEN
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Seattle to Colorado

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Colorado (USCO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Seattle to Colorado

Cheapest flights from Seattle to Colorado
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 November 20, 2024.

This Frontier deal was found by Cheapflights users on 11/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/92:34 pmSEA - DEN
Nonstop2h 45mFrontier
Sun 12/159:17 amDEN - SEA
Nonstop3h 12mFrontier
Deal found 11/20$98
This Delta deal was found by Cheapflights users on 11/20. 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.
Tue 12/107:55 pmSEA - DEN
Nonstop2h 49mDelta
Sun 12/156:05 amDEN - SEA
Nonstop3h 15mDelta
Deal found 11/20$117
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Tue 12/105:00 amSEA - DEN
Nonstop2h 47mUnited Airlines
Thu 12/127:45 amDEN - SEA
1 stop8h 36mUnited Airlines
Deal found 11/19$122
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Tue 12/176:10 amSEA - DEN
Nonstop2h 42mAlaska Airlines
Tue 12/245:10 pmDEN - SEA
Nonstop3h 09mAlaska Airlines
Deal found 11/19$147
This Expedia deal was found by Cheapflights users on 11/19. 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.
Fri 12/69:52 pmSEA - DEN
1 stop8h 59mMultiple Airlines
Tue 12/104:56 pmDEN - SEA
Nonstop3h 07mMultiple Airlines
Deal found 11/19$163
This Southwest deal was found by Cheapflights users on 11/19. 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.
Sat 12/75:50 amSEA - DEN
2 stops7h 20mSouthwest
Wed 12/118:55 pmDEN - SEA
Nonstop3h 00mSouthwest
Deal found 11/19$212
This Delta deal was found by Cheapflights users on 11/19. 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.
Thu 12/127:10 amSEA - COS
2 stops11h 29mDelta
Mon 12/168:20 amCOS - SEA
1 stop5h 14mDelta
Deal found 11/19$271
This United deal was found by Cheapflights users on 11/20. 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.
Wed 12/115:00 amSEA - COS
1 stop4h 49mUnited Airlines
Sun 12/156:00 amCOS - SEA
1 stop4h 58mUnited Airlines
Deal found 11/20$286
This American Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/412:45 amSEA - COS
1 stop8h 06mAmerican Airlines
Wed 12/1112:00 pmCOS - SEA
1 stop10h 15mAmerican Airlines
Deal found 11/19$296
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Thu 12/125:00 amSEA - HDN
1 stop6h 40mUnited Airlines
Sun 12/151:36 pmHDN - SEA
1 stop8h 29mUnited Airlines
Deal found 11/19$298
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Thu 12/129:21 pmSEA - GJT
1 stop14h 45mMultiple Airlines
Sun 12/1512:57 pmGJT - SEA
3 stops36h 13mMultiple Airlines
Deal found 11/18$307
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Thu 12/197:15 amSEA - MTJ
1 stop7h 03mUnited Airlines
Wed 12/253:29 pmMTJ - SEA
1 stop6h 41mUnited Airlines
Deal found 11/20$318

Find flights from Seattle to Colorado within your budget

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Thu 1/23

3:15 pm-7:02 pm

Nonstop2h 47m

Denver Intl

Sun 1/26

1:40 pm-3:45 pm

Nonstop3h 05m

$96

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 1/4

7:59 pm-11:51 pm

Nonstop2h 52m

Denver Intl

Sat 1/11

12:50 pm-3:04 pm

Nonstop3h 14m

$117

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 12/10

5:00 am-8:47 am

Nonstop2h 47m

Denver Intl

Thu 12/12

7:45 am-3:21 pm

1 stop8h 36m

$122

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Wed 1/22

6:59 pm-10:36 pm

Nonstop2h 37m

Denver Intl

Mon 2/10

12:20 pm-2:25 pm

Nonstop3h 05m

$141

SeattleColorado Springs

SEA - COS

SEACOS

Seattle/Tacoma Intl

Thu 1/9

1:59 pm-11:51 pm

1 stop8h 52m

Colorado Springs

Sun 1/12

4:43 pm-1:06 am

1 stop9h 23m

$158

SeattleVail

SEA - EGE

SEAEGE

Seattle/Tacoma Intl

Fri 1/10

6:44 pm-8:29 am

1 stop12h 45m

Vail Eagle County

Mon 1/13

9:29 am-5:54 pm

1 stop9h 25m

$166

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Tue 1/14

7:45 pm-11:29 pm

Nonstop2h 44m

Denver Intl

Wed 1/22

4:45 pm-6:52 pm

Nonstop3h 07m

$167

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 12/7

5:50 am-2:10 pm

2 stops7h 20m

Denver Intl

Thu 12/12

8:55 pm-10:55 pm

Nonstop3h 00m

$212

SeattleColorado Springs

SEA - COS

SEACOS

Seattle/Tacoma Intl

Fri 1/17

6:00 pm-11:59 pm

1 stop4h 59m

Colorado Springs

Mon 1/20

6:35 pm-11:09 pm

1 stop5h 34m

$232

SeattleHayden

SEA - HDN

SEAHDN

Seattle/Tacoma Intl

Tue 2/11

5:00 am-12:34 pm

1 stop6h 34m

Hayden Yampa Valley

Fri 2/14

3:32 pm-9:01 pm

1 stop6h 29m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
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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.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Colorado

Get recent, data-driven insights about flights from Seattle to Colorado including ideal travel times, pricing trends, and more.

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 $270). 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 November 20, 2024.

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 November 20, 2024.

The most flights from SEA to USCO are scheduled on a Wednesday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 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 November 20, 2024.
Get a feel of what it's like to fly with Frontier, Alaska Airlines and American Airlines 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.
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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.

  • What airport do you fly from for flights from Seattle to Colorado?

    For a flight from Seattle to Colorado, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How popular is this Seattle to Colorado flight route?

    The Seattle/Tacoma Intl to Colorado flight path was viewed by 355 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Seattle to Colorado one-way?

    $56 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $59 and $64, respectively.

  • What are the most popular routes from Seattle to Colorado?

    The most popular flight routes from Seattle to Colorado are Seattle/Tacoma Intl - Denver Intl, Seattle/Tacoma Intl - Colorado Springs and Seattle/Tacoma Intl - Gunnison.

  • What are the most reliable airlines from Seattle to Colorado?

    The top 3 most reliable airlines when flying from Seattle to Colorado are Sun Country Air (100%), United Airlines (93%) and SkyWest Airlines (93%).

  • What are the cheapest flights from Seattle to Colorado?

    On average you can expect to pay $591 for a flight from Seattle to Colorado. The cheapest flight overall is $55 while the most popular route, (Seattle/Tacoma Intl - Denver Intl) is currently priced at $84.

  • Can I find deals for flights from Seattle to Colorado that include hotel bookings?

    Yes. In addition to deals on Seattle to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Colorado.

  • Can I find deals for business class flights from Seattle to Colorado?

    Yes. Cheapflights offers flight deals from Seattle to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $270). 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.

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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.
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Top 6 airlines flying from Seattle to Colorado

Discover the top 6 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$128FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$350FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$111Average$498FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$123Average$528FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$132Average$301FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$176Average$419FlexibilityNo cancel feeOn-time71%
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