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Colorado

$113+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This JetBlue deal was found by Cheapflights users on 1/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/202:18 pm
PWM
-
DEN
1 stop10h 43m
JetBlue
Tue 8/411:05 am
DEN
-
PWM
1 stop10h 31m
JetBlue
Deal found 1/27$215
This Southwest deal was found by Cheapflights users on 1/28. 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 2/245:45 am
PWM
-
DEN
1 stop8h 50m
Southwest
Tue 3/36:20 am
DEN
-
PWM
1 stop6h 35m
Southwest
Deal found 1/28$251
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 2/255:40 pm
PWM
-
DEN
1 stop6h 57m
American Airlines
Wed 3/42:20 pm
DEN
-
PWM
1 stop6h 39m
American Airlines
Deal found 1/27$253
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 2/246:00 am
PWM
-
DEN
2 stops9h 38m
American Airlines
Wed 3/42:20 pm
DEN
-
PWM
1 stop6h 39m
American Airlines
Deal found 1/28$256
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 2/246:00 am
PWM
-
DEN
2 stops11h 54m
American Airlines
Tue 3/310:20 am
DEN
-
PWM
2 stops11h 30m
American Airlines
Deal found 1/28$261
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 2/205:40 pm
PWM
-
DEN
1 stop6h 57m
American Airlines
Wed 2/259:22 am
DEN
-
PWM
1 stop5h 45m
American Airlines
Deal found 1/27$270
This Delta deal was found by Cheapflights users on 1/28. 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 3/32:35 pm
PWM
-
DEN
1 stop9h 46m
Delta
Tue 3/1012:51 pm
DEN
-
PWM
1 stop9h 08m
Delta
Deal found 1/28$277
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 3/25:40 pm
PWM
-
DEN
1 stop6h 57m
American Airlines
Wed 3/117:00 am
DEN
-
PWM
1 stop8h 07m
American Airlines
Deal found 1/28$283
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 4/16:17 am
PWM
-
COS
1 stop7h 39m
American Airlines
Wed 4/812:21 pm
COS
-
PWM
1 stop8h 49m
American Airlines
Deal found 1/27$286
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 3/25:40 pm
PWM
-
DEN
1 stop6h 57m
American Airlines
Tue 3/106:50 am
DEN
-
PWM
2 stops9h 14m
American Airlines
Deal found 1/28$288
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 2/275:40 pm
PWM
-
DEN
1 stop6h 57m
American Airlines
Mon 3/97:00 am
DEN
-
PWM
1 stop8h 07m
American Airlines
Deal found 1/27$289
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 3/45:40 pm
PWM
-
DEN
1 stop6h 57m
American Airlines
Sat 3/77:00 am
DEN
-
PWM
1 stop8h 27m
American Airlines
Deal found 1/27$291

Find flight deals from Portland to Colorado

Keep the following information in mind while searching for Portland to Colorado flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$215
(JetBlue)

One-way from

$113
(Expedia)

Popular in

June

Cheapest in

October

Average price

$403

Good round-trip deal

$531 or less

Good one-way deal

$191 or less
Provider with most accurate pricing for Portland-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Denver Intl flights.
Search Deals
From Portland to Colorado
Search Deals
One-way flight from Portland to Colorado
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Portland to Colorado.
Search Deals
Price to beat on a one-way flight from Portland to Colorado.
Search Deals

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 January 29, 2026.
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

PortlandDenver

PWM - DEN

PWMDEN

Portland

Mon 7/20

2:18 pm-11:01 pm

1 stop10h 43m

Denver Intl

Tue 8/4

11:05 am-11:36 pm

1 stop10h 31m

$215

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 2/24

5:45 am-12:35 pm

1 stop8h 50m

Denver Intl

Tue 3/3

6:20 am-2:55 pm

1 stop6h 35m

$251

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 2/24

5:40 pm-10:37 pm

1 stop6h 57m

Denver Intl

Wed 3/4

7:00 am-5:07 pm

1 stop8h 07m

$251

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 2/27

5:40 pm-10:37 pm

1 stop6h 57m

Denver Intl

Wed 3/4

8:00 am-5:07 pm

1 stop7h 07m

$270

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 3/3

2:35 pm-10:21 pm

1 stop9h 46m

Denver Intl

Tue 3/10

12:51 pm-11:59 pm

1 stop9h 08m

$277

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 3/3

12:43 pm-8:28 pm

1 stop9h 45m

Denver Intl

Wed 3/11

6:10 am-4:06 pm

1 stop7h 56m

$277

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Wed 4/1

6:17 am-11:56 am

1 stop7h 39m

Colorado Springs

Wed 4/8

12:21 pm-11:10 pm

1 stop8h 49m

$286

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 6/11

6:25 pm-11:37 pm

1 stop7h 12m

Denver Intl

Sun 6/14

11:59 pm-10:02 am

1 stop8h 03m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 2/26

4:50 pm-9:50 pm

1 stop7h 00m

Denver Intl

Mon 3/2

5:30 am-3:15 pm

1 stop7h 45m

$289

PortlandMontrose

PWM - MTJ

PWMMTJ

Portland

Tue 3/10

5:23 am-12:49 pm

1 stop9h 26m

Montrose County

Mon 3/16

1:44 pm-11:22 pm

1 stop7h 38m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 56 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, November is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $87). 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.

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 January 29, 2026.
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
4,267 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,127 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,206 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,891 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 JetBlue, Southwest, and American Airlines fly from Portland, Maine to Colorado in about 6h 57m. The time it takes to get you to your destination can typically vary by up to 3h 46m. 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 $99 on American Airlines. Other airlines that offer cheap prices include United Airlines from $116 and Delta from $128 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 - Colorado Springs and Portland - Montrose County.

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

    Looking at all options, your cheapest flight can be booked for $191. While the most popular route (Portland - Denver Intl) can be booked for $251 on average, our data indicates $489 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, November is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $87). 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.

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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$256FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$226Average$341FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$256Average$462FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$355FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$260Average$638FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$288Average$409FlexibilityNo cancel feeOn-time63%

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