HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$124+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Colorado with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$272
(JetBlue)

One-way from

$124
(JetBlue Airways)

Popular in

July

Cheapest in

January

Average price

$451

Good round-trip deal

$616 or less

Good one-way deal

$273 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. 8% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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

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 March 28, 2025.

This JetBlue deal was found by Cheapflights users on 3/27. 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.
Thu 5/293:35 pmPWM - DEN
1 stop9h 24mJetBlue
Tue 6/32:38 pmDEN - PWM
1 stop6h 22mJetBlue
Deal found 3/27$272
This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 6/1012:55 pmPWM - DEN
1 stop9h 24mDelta
Mon 6/1612:59 amDEN - PWM
1 stop8h 51mDelta
Deal found 3/27$273
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 5/293:28 pmPWM - DEN
Nonstop4h 41mUnited Airlines
Tue 6/311:50 pmDEN - PWM
1 stop8h 43mUnited Airlines
Deal found 3/27$279
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/307:20 amPWM - DEN
2 stops11h 24mAmerican Airlines
Tue 5/67:00 amDEN - PWM
1 stop6h 12mAmerican Airlines
Deal found 3/27$294
This Southwest deal was found by Cheapflights users on 3/27. 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.
Wed 9/243:40 pmPWM - DEN
2 stops8h 55mSouthwest
Sun 9/285:00 amDEN - PWM
1 stop6h 10mSouthwest
Deal found 3/27$302
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/187:20 pmPWM - DEN
1 stop15h 38mFrontier
Sun 4/201:08 pmDEN - PWM
1 stop27h 14mFrontier
Deal found 3/27$308
This Sun Country Air deal was found by Cheapflights users on 3/27. 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.
Sat 7/1912:32 pmPWM - DEN
1 stop22h 47mSun Country Air
Thu 7/247:15 pmDEN - PWM
1 stop14h 20mSun Country Air
Deal found 3/27$395
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/3012:50 pmPWM - GJT
2 stops10h 14mAmerican Airlines
Tue 5/611:37 amGJT - PWM
2 stops9h 08mAmerican Airlines
Deal found 3/27$410
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/114:15 pmPWM - COS
2 stops9h 44mUnited Airlines
Tue 4/1511:46 amCOS - PWM
2 stops9h 41mUnited Airlines
Deal found 3/26$418
This United deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:00 amPWM - MTJ
1 stop7h 00mUnited Airlines
Wed 6/41:05 pmMTJ - PWM
2 stops8h 52mUnited Airlines
Deal found 3/27$425
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 5/207:45 amPWM - EGE
2 stops13h 07mAmerican Airlines
Wed 6/48:00 amEGE - PWM
2 stops10h 47mAmerican Airlines
Deal found 3/27$465
This Southwest deal was found by Cheapflights users on 3/27. 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 5/235:50 amPWM - COS
1 stop9h 35mSouthwest
Mon 5/262:00 pmCOS - PWM
1 stop7h 20mSouthwest
Deal found 3/27$483

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 March 28, 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

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 5/29

3:35 pm-10:59 pm

1 stop9h 24m

Denver Intl

Tue 6/3

2:38 pm-11:00 pm

1 stop6h 22m

$272

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 6/10

12:55 pm-8:19 pm

1 stop9h 24m

Denver Intl

Mon 6/16

12:59 am-11:50 am

1 stop8h 51m

$273

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 5/29

3:28 pm-6:09 pm

Nonstop4h 41m

Denver Intl

Tue 6/3

11:50 pm-10:33 am

1 stop8h 43m

$279

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 4/30

7:20 am-4:44 pm

2 stops11h 24m

Denver Intl

Tue 5/6

7:00 am-3:12 pm

1 stop6h 12m

$294

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 4/18

7:20 pm-8:58 am

1 stop15h 38m

Denver Intl

Sun 4/20

1:08 pm-6:22 pm

1 stop27h 14m

$308

PortlandDenver

PWM - DEN

PWMDEN

Portland

Mon 6/9

7:40 pm-11:40 pm

1 stop6h 00m

Denver Intl

Wed 6/18

5:15 am-5:05 pm

1 stop9h 50m

$313

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 7/19

12:32 pm-9:19 am

1 stop22h 47m

Denver Intl

Thu 7/24

7:15 pm-11:35 am

1 stop14h 20m

$395

PortlandGrand Junction

PWM - GJT

PWMGJT

Portland

Wed 4/30

12:50 pm-9:04 pm

2 stops10h 14m

Grand Junction Regnl

Tue 5/6

11:37 am-10:45 pm

2 stops9h 08m

$410

PortlandColorado Springs

PWM - COS

PWMCOS

Portland

Fri 4/11

4:15 pm-11:59 pm

2 stops9h 44m

Colorado Springs

Tue 4/15

11:46 am-11:27 pm

2 stops9h 41m

$418

PortlandMontrose

PWM - MTJ

PWMMTJ

Portland

Wed 5/28

6:00 am-11:00 am

1 stop7h 00m

Montrose County

Wed 6/4

1:05 pm-11:57 pm

2 stops8h 52m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 29 results
1
2
3

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 March 28, 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.

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 March 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Portland to Colorado to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Comfort

8.1

Entertainment

7.6

Boarding

8.2

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Comfort

8.1

Entertainment

7.6

Boarding

8.2

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Comfort

8.1

Entertainment

7.6

Boarding

8.2

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Comfort

8.1

Entertainment

7.6

Boarding

8.2

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Comfort

8.1

Entertainment

7.6

Boarding

8.2

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Comfort

8.1

Entertainment

7.6

Boarding

8.2

Overall

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $124 on JetBlue. Other airlines that offer cheap prices include Delta from $129 and American Airlines from $139 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 - 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 $194. While the most popular route (Portland - Denver Intl) can be booked for $227 on average our data indicates $977 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Orlando flights
Boston to Las Vegas flights
Boston to Fort Lauderdale flights
Boston to Miami flights
Boston to Dallas/Fort Worth flights
Boston to Los Angeles flights
Boston to O'Hare Intl flights
Boston to Seattle flights
Boston to Reagan-National flights
Boston to Dulles Intl flights
Boston to Baltimore flights
Boston to Tampa flights
Boston to Denver flights
Boston to Newark flights
Boston to Hobby flights
Boston to Austin flights
Boston to San Francisco flights
Boston to Nashville flights
Boston to Charlotte flights
Boston to West Palm Beach flights
Boston to Atlanta flights
Boston to Philadelphia flights
Boston to Sky Harbor Intl flights
Boston to Salt Lake City flights
Boston to Charleston flights
Boston to Fort Myers flights
Boston to George Bush Intcntl flights
Boston to San Diego flights
Boston to John F Kennedy Intl flights
Boston to Raleigh flights
Boston to LaGuardia flights
Boston to New Orleans flights
Boston to Minneapolis flights
Boston to Midway flights
Boston to Pittsburgh flights
Boston to Detroit flights
Boston to Ontario flights
Boston to Savannah flights
Boston to Myrtle Beach flights
Boston to Portland flights
Boston to Jacksonville flights
Boston to Richmond flights
Boston to Columbus flights
Boston to Honolulu flights
Boston to Cleveland flights
Boston to Sarasota flights
Boston to Indianapolis flights
Boston to Cincinnati flights
Boston to Burbank flights
Boston to Kansas City flights

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$151Average$263FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$209Average$315FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$451FlexibilityNo cancel feeOn-time71%
DeltaCheapest$246Average$536FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$316Average$466FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$328Average$730FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.