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Colorado

$97+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$277
(Delta)

One-way from

$97
(Southwest)

Popular in

June

Cheapest in

January

Average price

$472

Good round-trip deal

$374 or less

Good one-way deal

$299 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. 10% potential increase in price ($51 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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.
Sat 12/66:00 amPWM - COS
1 stop8h 35mDelta
Tue 12/91:42 pmCOS - PWM
1 stop6h 35mDelta
Deal found 9/14$277
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 10/256:00 amPWM - DEN
2 stops9h 23mAmerican Airlines
Tue 10/289:20 amDEN - PWM
2 stops8h 58mAmerican Airlines
Deal found 9/15$299
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:30 amPWM - DEN
2 stops10h 25mSouthwest
Fri 11/75:30 amDEN - PWM
1 stop6h 55mSouthwest
Deal found 9/15$306
This United Airlines deal was found by Cheapflights users on 9/15. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:00 amPWM - DEN
1 stop8h 17mUnited Airlines
Tue 10/146:00 amDEN - PWM
1 stop8h 44mUnited Airlines
Deal found 9/15$308
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 11/34:48 pmPWM - DEN
2 stops20h 16mDelta
Fri 11/75:45 amDEN - PWM
1 stop8h 18mDelta
Deal found 9/15$310
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/34:57 pmPWM - DEN
1 stop7h 03mUnited Airlines
Mon 10/611:59 pmDEN - PWM
1 stop7h 12mUnited Airlines
Deal found 9/14$314
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 11/1212:45 pmPWM - DEN
2 stops10h 50mSouthwest
Sun 11/166:50 amDEN - PWM
2 stops8h 00mSouthwest
Deal found 9/14$315
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:59 pmPWM - DEN
1 stop7h 10mAmerican Airlines
Mon 10/277:21 amDEN - PWM
2 stops10h 53mAmerican Airlines
Deal found 9/14$318
This American Airlines deal was found by Cheapflights users on 9/13. 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 12/65:46 amPWM - COS
2 stops11h 59mAmerican Airlines
Tue 12/95:33 amCOS - PWM
2 stops14h 04mAmerican Airlines
Deal found 9/13$319
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/33:56 pmPWM - DEN
1 stop9h 29mAmerican Airlines
Mon 10/67:21 amDEN - PWM
2 stops7h 20mAmerican Airlines
Deal found 9/14$319
This United Airlines deal was found by Cheapflights users on 9/15. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:54 pmPWM - DEN
1 stop8h 21mUnited Airlines
Sat 11/810:05 amDEN - PWM
Nonstop3h 43mUnited Airlines
Deal found 9/15$322
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:36 pmPWM - DEN
1 stop8h 45mMultiple Airlines
Sun 11/212:16 amDEN - PWM
2 stops15h 09mMultiple Airlines
Deal found 9/14$323

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 September 15, 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

Sat 12/6

6:00 am-12:35 pm

1 stop8h 35m

Colorado Springs

Tue 12/9

1:42 pm-10:17 pm

1 stop6h 35m

$277

PortlandDenver

PWM - DEN

PWMDEN

Portland

Mon 11/3

4:48 pm-11:04 am

2 stops20h 16m

Denver Intl

Fri 11/7

5:45 am-4:03 pm

1 stop8h 18m

$310

PortlandDenver

PWM - DEN

PWMDEN

Portland

Mon 9/29

5:41 pm-11:18 pm

1 stop7h 37m

Denver Intl

Sun 10/5

6:00 am-2:33 pm

1 stop6h 33m

$314

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Sat 12/6

5:46 am-3:45 pm

2 stops11h 59m

Colorado Springs

Tue 12/9

5:33 am-9:37 pm

2 stops14h 04m

$319

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 11/6

5:30 am-4:05 pm

2 stops12h 35m

Denver Intl

Mon 11/10

11:55 pm-12:10 pm

1 stop10h 15m

$329

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 10/3

2:41 pm-10:35 pm

1 stop9h 54m

Denver Intl

Tue 10/7

6:45 am-4:13 pm

1 stop7h 28m

$329

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 12/12

7:02 am-2:23 pm

1 stop9h 21m

Denver Intl

Mon 12/15

7:00 am-3:27 pm

1 stop6h 27m

$339

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 10/30

3:20 pm-6:21 pm

Nonstop5h 01m

Denver Intl

Sun 11/2

10:05 am-3:49 pm

Nonstop3h 44m

$349

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 12/13

5:40 am-11:50 am

2 stops8h 10m

Denver Intl

Wed 12/31

10:35 am-10:15 pm

2 stops9h 40m

$350

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 11/19

3:20 pm-6:23 pm

Nonstop5h 03m

Denver Intl

Sun 11/23

11:59 pm-10:04 am

1 stop8h 05m

$353

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 46 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 September 15, 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 September 15, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines 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
4,242 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Portland, Maine to Colorado?

    Airlines like Delta, United Airlines, and Southwest fly from Portland, Maine to Colorado in about 8h 10m. The time it takes to get you to your destination can typically vary by up to 1h 48m. Portland, Maine and Colorado are separated by a distance of 1776 mi. This flight may include one or multiple stops.

  • 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 $97 on Southwest. Other airlines that offer cheap prices include Delta from $129 and American Airlines from $149 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 - Grand Junction Regnl and Portland - Durango La Plata County.

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

    Looking at all options, your cheapest flight can be booked for $203. While the most popular route (Portland - Denver Intl) can be booked for $188 on average, our data indicates $704 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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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$243FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$226Average$341FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$256Average$493FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$352FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$302Average$442FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$308Average$688FlexibilityNo cancel feeOn-time69%

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