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$129+ Cheap flights from Portland, ME (PWM) 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Portland to Colorado

Keep the following information in mind while searching for Portland to Colorado flight deals. Data was last updated July 29, 2025.

Round-trip from

$277
(American Airlines)

One-way from

$129
(Frontier)

Popular in

July

Cheapest in

January

Average price

$545

Good round-trip deal

$469 or less

Good one-way deal

$273 or less
From Portland to Colorado
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One-way flight from Portland to Colorado
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Highest demand for flights based on searches. 8% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Portland to Colorado.
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Price to beat on a one-way flight from Portland to Colorado.
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Find flight deals from Portland to Colorado

Cheapest flights from Portland to Colorado
Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 9/46:15 amPWM - COS
1 stop7h 38mAmerican Airlines
Tue 9/912:21 pmCOS - PWM
1 stop8h 22mAmerican Airlines
Deal found 7/28$277
This Southwest deal was found by Cheapflights users on 7/27. 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.
Fri 9/52:00 pmPWM - DEN
2 stops8h 05mSouthwest
Sun 9/1411:40 pmDEN - PWM
1 stop8h 10mSouthwest
Deal found 7/27$294
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 8/308:00 amPWM - DEN
2 stops9h 49mAmerican Airlines
Wed 9/37:20 amDEN - PWM
2 stops10h 51mAmerican Airlines
Deal found 7/27$299
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 9/53:35 pmPWM - DEN
Nonstop4h 25mUnited Airlines
Sun 9/146:00 amDEN - PWM
1 stop6h 26mUnited Airlines
Deal found 7/27$304
This Southwest deal was found by Cheapflights users on 7/28. 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.
Tue 9/235:50 amPWM - COS
2 stops9h 50mSouthwest
Mon 9/293:00 pmCOS - PWM
1 stop6h 20mSouthwest
Deal found 7/28$306
This Delta deal was found by Cheapflights users on 7/27. 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.
Wed 8/272:36 pmPWM - DEN
1 stop10h 13mDelta
Mon 9/112:20 pmDEN - PWM
1 stop23h 36mDelta
Deal found 7/27$311
This JetBlue deal was found by Cheapflights users on 7/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/316:05 amPWM - DEN
1 stop6h 20mJetBlue
Thu 9/411:25 amDEN - PWM
1 stop8h 37mJetBlue
Deal found 7/29$320
This Delta deal was found by Cheapflights users on 7/28. 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 10/216:00 amPWM - COS
1 stop8h 11mDelta
Mon 10/271:16 pmCOS - PWM
1 stop7h 03mDelta
Deal found 7/28$362
This Sun Country Air deal was found by Cheapflights users on 7/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:46 pmPWM - DEN
1 stop6h 27mSun Country Air
Thu 8/2110:11 amDEN - PWM
1 stop23h 29mSun Country Air
Deal found 7/27$365
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/236:00 amPWM - DRO
2 stops12h 12mAmerican Airlines
Tue 8/266:02 amDRO - PWM
1 stop9h 44mAmerican Airlines
Deal found 7/28$404
This United Airlines deal was found by Cheapflights users on 7/28. 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 12/99:45 amPWM - EGE
2 stops12h 47mUnited Airlines
Sun 12/2111:55 amEGE - PWM
1 stop9h 36mUnited Airlines
Deal found 7/28$409
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/236:00 amPWM - GJT
2 stops10h 35mUnited Airlines
Tue 8/265:30 amGJT - PWM
1 stop8h 26mUnited Airlines
Deal found 7/28$434

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 July 29, 2025.
Use the filters below to find and compare flights from Portland to Colorado that are best for you.

Fly from

Portland

Fly to

Colorado

Route

Depart

Return

Price

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Thu 9/4

6:15 am-11:53 am

1 stop7h 38m

Colorado Springs

Tue 9/9

12:21 pm-10:43 pm

1 stop8h 22m

$277

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 9/5

2:00 pm-8:05 pm

2 stops8h 05m

Denver Intl

Sun 9/14

11:40 pm-9:50 am

1 stop8h 10m

$294

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 8/30

8:00 am-3:49 pm

2 stops9h 49m

Denver Intl

Wed 9/3

7:20 am-8:11 pm

2 stops10h 51m

$299

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 9/5

3:35 pm-6:00 pm

Nonstop4h 25m

Denver Intl

Sun 9/14

6:00 am-2:26 pm

1 stop6h 26m

$304

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Tue 9/23

5:50 am-1:40 pm

2 stops9h 50m

Colorado Springs

Mon 9/29

3:00 pm-11:20 pm

1 stop6h 20m

$306

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 8/27

2:36 pm-10:49 pm

1 stop10h 13m

Denver Intl

Mon 9/1

12:20 pm-1:56 pm

1 stop23h 36m

$311

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sun 8/31

6:05 am-10:25 am

1 stop6h 20m

Denver Intl

Thu 9/4

11:25 am-10:02 pm

1 stop8h 37m

$320

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Tue 10/21

6:00 am-12:11 pm

1 stop8h 11m

Colorado Springs

Mon 10/27

1:16 pm-10:19 pm

1 stop7h 03m

$362

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 8/14

12:46 pm-5:13 pm

1 stop6h 27m

Denver Intl

Thu 8/21

10:11 am-11:40 am

1 stop23h 29m

$365

PortlandDurango

PWM - DRO

PWMDRO

Portland

Sat 8/23

6:00 am-4:12 pm

2 stops12h 12m

Durango La Plata County

Tue 8/26

6:02 am-5:46 pm

1 stop9h 44m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 41 results
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Best time to book a flight from Portland to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Portland 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Colorado

What is the cheapest month to book a flight from Portland, Maine to Colorado?

Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $197). Flying from Portland, Maine 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 PWM to CO?

Find hourly flight availability from Portland 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 July 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Colorado as you normally would.

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 July 29, 2025.
See what other customers who have flown with Southwest, Delta, and Breeze Airways from Portland to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Breeze Airways
8.0
Very good
190 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,899 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland to Colorado?

    If you book a flight to Colorado from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

  • How popular is this Portland, Maine to Colorado flight route?

    Flights from Portland to Colorado have been viewed 1 times in the past calendar month.

  • What are the cheapest airlines to fly from Portland, Maine to Colorado one-way?

    One-way options have recently been found by users for as low as $129 on Frontier. Other airlines that offer cheap prices include JetBlue from $134 and Delta from $145 one-way.

  • What are the most popular routes from Portland, Maine to Colorado?

    The most popular flight routes from Portland, Maine to Colorado are Portland - Denver Intl, Portland - Durango La Plata County and Portland - Grand Junction Regnl.

  • What are the cheapest flights from Portland, Maine to Colorado?

    Looking at all options, your cheapest flight can be booked for $210. While the most popular route (Portland - Denver Intl) can be booked for $270 on average our data indicates $552 when flying from Portland, Maine to Colorado.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland, Maine to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $197). Flying from Portland, Maine 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.

See more FAQs

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Alternative routes for Portland 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 Portland to Colorado

Discover the top 6 airlines that operate flights from Portland 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$256FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$226Average$341FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$349FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$453FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$294Average$441FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$330Average$727FlexibilityNo cancel feeOn-time69%

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