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$96+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$191
(Southwest)

One-way from

$96
(American Airlines)

Popular in

July

Cheapest in

November

Average price

$418

Good round-trip deal

$1,082 or less
Provider with most accurate pricing for Denver Intl-Portland flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Portland flights.
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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. 10% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip 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 January 8, 2026.

This Southwest deal was found by Cheapflights users on 1/7. 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 2/36:20 amDEN - PWM
1 stop6h 35mSouthwest
Tue 2/105:45 amPWM - DEN
1 stop8h 50mSouthwest
Deal found 1/7$191
This Southwest deal was found by Cheapflights users on 1/7. 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 3/1811:55 pmDEN - PWM
1 stop10h 00mSouthwest
Wed 3/255:30 amPWM - DEN
1 stop7h 10mSouthwest
Deal found 1/7$210
This Southwest deal was found by Cheapflights users on 1/8. 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.
Thu 1/296:20 amDEN - PWM
1 stop6h 35mSouthwest
Tue 2/35:45 amPWM - DEN
1 stop8h 50mSouthwest
Deal found 1/8$211
This American Airlines deal was found by Cheapflights users on 1/6. 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 2/248:00 amDEN - PWM
1 stop7h 07mAmerican Airlines
Sat 2/285:57 pmPWM - DEN
1 stop6h 40mAmerican Airlines
Deal found 1/6$221
This American Airlines deal was found by Cheapflights users on 1/7. 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 2/268:00 amDEN - PWM
1 stop7h 07mAmerican Airlines
Sun 3/15:40 pmPWM - DEN
1 stop6h 57mAmerican Airlines
Deal found 1/7$260
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 1/317:00 amDEN - PWM
1 stop8h 38mMultiple Airlines
Mon 2/211:29 amPWM - DEN
1 stop12h 20mMultiple Airlines
Deal found 1/8$264
This Delta deal was found by Cheapflights users on 1/6. 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 1/212:05 pmMTJ - PWM
1 stop6h 22mDelta
Sun 1/255:30 amPWM - MTJ
1 stop9h 38mDelta
Deal found 1/6$299
This American Airlines deal was found by Cheapflights users on 1/6. 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 1/2112:44 pmMTJ - PWM
2 stops8h 59mAmerican Airlines
Sun 1/255:20 amPWM - MTJ
2 stops10h 43mAmerican Airlines
Deal found 1/6$310
This American Airlines deal was found by Cheapflights users on 1/6. 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 7/18:00 amCOS - PWM
1 stop6h 46mAmerican Airlines
Wed 7/156:00 amPWM - COS
2 stops10h 35mAmerican Airlines
Deal found 1/6$342
This American Airlines deal was found by Cheapflights users on 1/6. 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 7/208:00 amCOS - PWM
1 stop6h 46mAmerican Airlines
Wed 8/56:15 amPWM - COS
1 stop7h 21mAmerican Airlines
Deal found 1/6$347
This American Airlines deal was found by Cheapflights users on 1/8. 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 1/297:06 amGJT - PWM
2 stops13h 48mAmerican Airlines
Tue 2/35:20 amPWM - GJT
2 stops14h 59mAmerican Airlines
Deal found 1/8$365
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Sun 8/301:00 pmCOS - PWM
1 stop6h 27mUnited Airlines
Sun 9/66:00 amPWM - COS
1 stop7h 18mUnited Airlines
Deal found 1/6$368

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 January 8, 2026.
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

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 2/3

6:20 am-2:55 pm

1 stop6h 35m

Portland

Tue 2/10

5:45 am-12:35 pm

1 stop8h 50m

$191

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 3/18

11:55 pm-11:55 am

1 stop10h 00m

Portland

Wed 3/25

5:30 am-10:40 am

1 stop7h 10m

$210

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 2/24

8:00 am-5:07 pm

1 stop7h 07m

Portland

Sat 2/28

5:57 pm-10:37 pm

1 stop6h 40m

$221

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 1/29

10:55 am-10:15 pm

2 stops9h 20m

Portland

Tue 2/3

5:45 am-2:10 pm

2 stops10h 25m

$222

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 3/18

7:00 am-5:07 pm

1 stop8h 07m

Portland

Thu 3/19

6:17 am-11:37 am

1 stop7h 20m

$274

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 5/9

9:40 am-3:35 pm

Nonstop3h 55m

Portland

Tue 5/12

7:06 pm-12:13 am

1 stop7h 07m

$279

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 2/5

1:16 pm-10:27 pm

1 stop7h 11m

Portland

Mon 2/9

2:35 pm-10:46 pm

1 stop10h 11m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 5/23

11:40 pm-8:19 am

1 stop6h 39m

Portland

Sat 5/30

7:22 pm-11:50 pm

1 stop6h 28m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 2/6

11:29 am-10:07 pm

1 stop8h 38m

Portland

Sun 2/8

5:20 am-3:21 pm

2 stops12h 01m

$294

MontrosePortland

MTJ - PWM

MTJPWM

Montrose County

Wed 1/21

2:05 pm-10:27 pm

1 stop6h 22m

Portland

Sun 1/25

5:30 am-1:08 pm

1 stop9h 38m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 46 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 $98). Flying from Colorado to Portland, Maine in June is currently the most expensive (average of $173). 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 January 8, 2026.

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 22m. Fly via Southwest, American Airlines, or Delta to get the fastest option. There are 1971 mi between Colorado and Portland, Maine. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Colorado to Portland, Maine one-way?

    $84 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $85 and $108, respectively.

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

    While some choose either Colorado Springs - Portland or Durango La Plata County - 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 $1,082. While the most popular route (Denver Intl - Portland) can be booked for $191 on average, our data indicates $1,082 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 $98). Flying from Colorado to Portland, Maine in June is currently the most expensive (average of $173). 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
North Conway
Brunswick
Auburn
Conway

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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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$232FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$192Average$489FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$249Average$294FlexibilityNo cancel feeOn-time62%
DeltaCheapest$249Average$319FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$272Average$436FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$612FlexibilityNo cancel feeOn-time69%

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