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$92+ Cheap flights from Colorado to Portland, ME (PWM)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Colorado to Portland

Keep the following information in mind while searching for Colorado to Portland flight deals. Data was last updated September 15, 2025.

Round-trip from

$289
(American Airlines)

One-way from

$92
(Southwest)

Popular in

February

Cheapest in

November

Average price

$439

Good round-trip deal

$509 or less

Good one-way deal

$258 or less
From Colorado to Portland
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One-way flight from Colorado to Portland
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Highest demand for flights based on searches. 5% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 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 Colorado to Portland.
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Price to beat on a one-way flight from Colorado to Portland.
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Find flight deals from Colorado to Portland

Cheapest flights from Colorado to Portland
Explore the most affordable flight options available from Colorado to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

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 10/241:40 pmDEN - PWM
1 stop7h 08mAmerican Airlines
Mon 10/275:59 pmPWM - DEN
1 stop7h 10mAmerican Airlines
Deal found 9/14$289
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:35 amDEN - PWM
2 stops9h 40mSouthwest
Sat 12/65:40 amPWM - DEN
2 stops8h 10mSouthwest
Deal found 9/13$293
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 11/87:22 amDEN - PWM
1 stop7h 43mAmerican Airlines
Thu 12/45:46 amPWM - DEN
2 stops13h 04mAmerican Airlines
Deal found 9/13$294
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:25 amDEN - PWM
1 stop8h 37mJetBlue
Tue 10/142:17 pmPWM - DEN
1 stop10h 42mJetBlue
Deal found 9/13$297
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:16 amDEN - PWM
1 stop8h 20mMultiple Airlines
Mon 11/39:46 amPWM - DEN
1 stop15h 30mMultiple Airlines
Deal found 9/13$305
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:20 amDEN - PWM
2 stops7h 35mSouthwest
Mon 11/35:30 amPWM - DEN
1 stop8h 50mSouthwest
Deal found 9/13$310
This Southwest deal was found by Cheapflights users on 9/12. 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.
Sat 9/2711:40 pmDEN - PWM
1 stop8h 00mSouthwest
Tue 9/304:55 pmPWM - DEN
1 stop7h 40mSouthwest
Deal found 9/12$311
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.
Mon 10/2012:29 pmDEN - PWM
1 stop8h 16mAmerican Airlines
Thu 10/233:28 pmPWM - DEN
1 stop6h 59mAmerican Airlines
Deal found 9/13$313
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.
Mon 10/277:08 amDEN - PWM
1 stop8h 01mAmerican Airlines
Sun 11/25:00 amPWM - DEN
1 stop7h 15mAmerican Airlines
Deal found 9/14$314
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:05 amDEN - PWM
1 stop23h 31mMultiple Airlines
Mon 11/36:05 pmPWM - DEN
2 stops17h 03mMultiple Airlines
Deal found 9/13$316
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.
Wed 11/57:00 amDRO - PWM
1 stop6h 48mUnited Airlines
Sat 11/83:20 pmPWM - DRO
1 stop8h 41mUnited Airlines
Deal found 9/15$318
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.
Sat 10/257:30 amMTJ - PWM
2 stops11h 51mAmerican Airlines
Sat 11/15:46 amPWM - MTJ
2 stops14h 17mAmerican Airlines
Deal found 9/14$331

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Portland 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 Colorado to Portland that are best for you.

Fly from

Colorado

Fly to

Portland

Route

Depart

Return

Price

DurangoPortland

DRO - PWM

DROPWM

Durango La Plata County

Wed 11/5

7:00 am-3:48 pm

1 stop6h 48m

Portland

Sat 11/8

3:20 pm-10:01 pm

1 stop8h 41m

$318

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 10/5

11:05 am-11:03 pm

1 stop9h 58m

Portland

Wed 10/8

5:42 am-8:58 pm

1 stop17h 16m

$323

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 9/30

6:25 am-3:57 pm

1 stop7h 32m

Portland

Sat 10/4

2:41 pm-7:28 pm

1 stop6h 47m

$339

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Fri 9/26

1:11 pm-12:11 am

1 stop9h 00m

Portland

Tue 9/30

11:34 am-8:39 pm

2 stops11h 05m

$346

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Mon 9/29

6:02 am-8:11 pm

2 stops12h 09m

Portland

Fri 10/3

1:02 pm-10:08 pm

2 stops11h 06m

$349

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 10/8

9:52 am-3:48 pm

Nonstop3h 56m

Portland

Thu 10/16

3:39 pm-6:05 pm

Nonstop4h 26m

$349

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 10/31

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Sun 11/2

5:00 am-11:09 am

1 stop8h 09m

$353

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 10/8

6:00 am-4:44 pm

1 stop8h 44m

Portland

Mon 10/13

3:39 pm-6:05 pm

Nonstop4h 26m

$353

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 10/7

6:00 am-4:44 pm

1 stop8h 44m

Portland

Sat 10/11

3:39 pm-6:05 pm

Nonstop4h 26m

$353

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 10/7

11:59 pm-9:11 am

1 stop7h 12m

Portland

Tue 10/14

3:15 pm-11:15 pm

1 stop10h 00m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Portland, Maine (average of $296). Flying from Colorado to Portland, Maine in July is currently the most expensive (average of $394). 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 CO to PWM?

Find hourly flight availability from Colorado to Portland. 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 Colorado to Portland, Maine as you normally would.

Related info for your journey

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

    Located just 2.9 mi from the city center, Portland (PWM) is the airport most travelers will use when flying to Portland from Colorado.

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

    There are many flights that can get you from Colorado to Portland, Maine in 6h 48m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. There are 2001 mi between Colorado and Portland, Maine. Both multi-stop and nonstop flights can be found to your destination and back.

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

    While some choose either Durango La Plata County - Portland or Colorado Springs - Portland, Denver Intl - Portland is the most popular route from Colorado to Portland, Maine.

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

    Looking at all options, your cheapest flight can be booked for $158. While the most popular route (Denver Intl - Portland) can be booked for $199 on average, our data indicates $754 when flying from Colorado to Portland, Maine.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Portland, Maine (average of $296). Flying from Colorado to Portland, Maine in July is currently the most expensive (average of $394). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Brunswick
North Conway
Auburn
Conway
Lewiston

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Top 6 airlines flying from Colorado to Portland

Discover the top 6 airlines that operate flights from Colorado to Portland. 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$129Average$232FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$192Average$501FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$249Average$310FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$321FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$272Average$441FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$294Average$644FlexibilityNo cancel feeOn-time69%

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