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Colorado

$118+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$281
(United Airlines)

One-way from

$118
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$403

Good round-trip deal

$374 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Portland-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-Denver Intl flights.
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From Portland to Colorado
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One-way flight from Portland to Colorado
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:18 pmPWM - DEN
1 stop16h 52mMultiple Airlines
Sun 12/1412:11 pmDEN - PWM
1 stop20h 30mMultiple Airlines
Deal found 10/28$287
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:08 amPWM - COS
1 stop8h 28mDelta
Thu 12/252:00 pmCOS - PWM
1 stop6h 43mDelta
Deal found 10/29$289
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 11/196:00 amPWM - DEN
1 stop10h 04mDelta
Wed 12/36:15 amDEN - PWM
1 stop7h 52mDelta
Deal found 10/28$289
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:53 pmPWM - COS
2 stops11h 32mDelta
Thu 12/252:00 pmCOS - PWM
1 stop6h 43mDelta
Deal found 10/29$294
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 11/193:52 pmPWM - DEN
1 stop9h 26mAmerican Airlines
Wed 12/310:21 amDEN - PWM
2 stops11h 16mAmerican Airlines
Deal found 10/28$294
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:08 amPWM - COS
1 stop8h 28mDelta
Tue 12/91:42 pmCOS - PWM
1 stop6h 41mDelta
Deal found 10/29$301
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Wed 11/263:20 pmPWM - DEN
Nonstop5h 01mUnited Airlines
Wed 12/31:50 pmDEN - PWM
1 stop7h 19mUnited Airlines
Deal found 10/27$304
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:53 pmPWM - COS
2 stops11h 32mDelta
Thu 12/252:00 pmCOS - PWM
1 stop6h 43mDelta
Deal found 10/29$306
This Delta deal was found by Cheapflights users on 10/30. 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.
Fri 12/126:08 amPWM - COS
1 stop8h 28mDelta
Wed 12/171:42 pmCOS - PWM
1 stop6h 41mDelta
Deal found 10/30$313
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/227:22 pmPWM - DEN
1 stop6h 53mUnited Airlines
Sun 11/3011:50 pmDEN - PWM
1 stop7h 29mUnited Airlines
Deal found 10/28$313
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/143:20 pmPWM - DEN
Nonstop5h 01mUnited Airlines
Sat 11/2211:50 pmDEN - PWM
1 stop7h 29mUnited Airlines
Deal found 10/30$314
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:21 amPWM - DEN
2 stops28h 52mMultiple Airlines
Tue 11/1812:16 amDEN - PWM
1 stop8h 20mMultiple Airlines
Deal found 10/29$322

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 October 30, 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

Mon 12/8

6:08 am-12:36 pm

1 stop8h 28m

Colorado Springs

Wed 12/17

1:42 pm-10:23 pm

1 stop6h 41m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 11/21

7:22 pm-12:15 am

1 stop6h 53m

Denver Intl

Wed 11/26

4:05 pm-11:59 pm

1 stop5h 54m

$289

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Tue 12/9

6:08 am-12:36 pm

1 stop8h 28m

Colorado Springs

Wed 12/17

1:42 pm-10:23 pm

1 stop6h 41m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 11/19

6:00 am-12:05 pm

1 stop8h 05m

Denver Intl

Wed 12/3

6:15 am-4:07 pm

1 stop7h 52m

$289

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Wed 12/10

12:53 pm-10:25 pm

2 stops11h 32m

Colorado Springs

Wed 12/17

1:42 pm-10:23 pm

1 stop6h 41m

$294

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 2/11

12:45 pm-7:20 pm

1 stop8h 35m

Denver Intl

Tue 2/17

5:30 am-3:15 pm

1 stop7h 45m

$301

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Sat 12/6

6:08 am-12:36 pm

1 stop8h 28m

Colorado Springs

Tue 12/9

1:42 pm-10:23 pm

1 stop6h 41m

$301

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Sat 12/13

6:08 am-12:36 pm

1 stop8h 28m

Colorado Springs

Wed 12/17

1:42 pm-10:23 pm

1 stop6h 41m

$301

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Sat 12/13

12:53 pm-10:25 pm

2 stops11h 32m

Colorado Springs

Thu 12/25

2:00 pm-10:43 pm

1 stop6h 43m

$306

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Sun 12/14

6:08 am-12:36 pm

1 stop8h 28m

Colorado Springs

Wed 12/17

1:42 pm-10:23 pm

1 stop6h 41m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 39 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, January is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $98). Flying from Portland, Maine to Colorado in August is currently the most expensive (average of $169). 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 October 30, 2025.

It’s typically best to fly out from Portland, Maine to Colorado in the evening. Doing so could potentially save you 48% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Portland, Maine to Colorado?

Use this chart to determine the cheapest time to fly round-trip from Portland to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland, Maine to Colorado flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 30, 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
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

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
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

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
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

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
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

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
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

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
JetBlue
7.2
Good
2,906 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

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 6h 53m. The time it takes to get you to your destination can typically vary by up to 1h 42m. Portland, Maine and Colorado are separated by a distance of 1776 mi. This flight may include one or multiple stops.

  • 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 - Montrose County and Portland - Colorado Springs.

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

    Looking at all options, your cheapest flight can be booked for $142. While the most popular route (Portland - Denver Intl) can be booked for $269 on average, our data indicates $719 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, January is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $98). Flying from Portland, Maine to Colorado in August is currently the most expensive (average of $169). 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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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$256FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$226Average$334FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$254Average$517FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$260Average$650FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$298Average$449FlexibilityNo cancel feeOn-time63%

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