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$125+ 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 12/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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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 November 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/311:59 pmDEN - PWM
1 stop31h 07mMultiple Airlines
Mon 12/86:05 pmPWM - DEN
2 stops17h 05mMultiple Airlines
Deal found 11/1$277
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/69:05 pmDEN - PWM
2 stops35h 36mMultiple Airlines
Wed 12/1011:16 amPWM - DEN
1 stop13h 48mMultiple Airlines
Deal found 11/3$279
This Delta deal was found by Cheapflights users on 11/4. 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 12/311:34 amDEN - PWM
1 stop8h 49mDelta
Sun 12/76:08 amPWM - DEN
1 stop9h 59mDelta
Deal found 11/4$289
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/36:00 amDEN - PWM
2 stops10h 15mAmerican Airlines
Sun 12/77:11 amPWM - DEN
1 stop8h 19mAmerican Airlines
Deal found 11/4$294
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/310:21 amDEN - PWM
2 stops11h 16mAmerican Airlines
Mon 12/812:23 pmPWM - DEN
2 stops11h 57mAmerican Airlines
Deal found 11/1$299
This Southwest deal was found by Cheapflights users on 11/4. 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.
Mon 12/87:00 amDEN - PWM
1 stop5h 55mSouthwest
Wed 12/1012:45 pmPWM - DEN
1 stop7h 15mSouthwest
Deal found 11/4$301
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/47:30 amGJT - PWM
2 stops13h 04mAmerican Airlines
Mon 12/85:46 amPWM - GJT
2 stops12h 16mAmerican Airlines
Deal found 11/4$307
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/267:15 amMTJ - PWM
1 stop6h 23mUnited Airlines
Sat 12/66:00 amPWM - MTJ
3 stops16h 10mUnited Airlines
Deal found 11/3$309
This Delta deal was found by Cheapflights users on 11/3. 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.
Thu 12/116:46 amDEN - PWM
1 stop7h 17mDelta
Sat 12/1312:53 pmPWM - DEN
1 stop6h 34mDelta
Deal found 11/3$314
This American Airlines deal was found by Cheapflights users on 11/2. 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 12/510:21 amDEN - PWM
2 stops11h 16mAmerican Airlines
Sun 12/76:00 amPWM - DEN
1 stop7h 11mAmerican Airlines
Deal found 11/2$329
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Mon 12/19:05 pmDEN - PWM
2 stops35h 31mMultiple Airlines
Mon 12/811:21 amPWM - DEN
1 stop11h 19mMultiple Airlines
Deal found 11/3$332
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Tue 11/2510:05 amDEN - PWM
Nonstop3h 43mUnited Airlines
Mon 12/86:00 amPWM - DEN
1 stop9h 58mUnited Airlines
Deal found 11/2$336

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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$277
(Priceline)

One-way from

$125
(United Airlines)

Popular in

February

Cheapest in

November

Average price

$378

Good round-trip deal

$294 or less

Good one-way deal

$358 or less
Provider with most accurate pricing for Denver Intl-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Portland flights.
Search Deals
From Colorado to Portland
Search Deals
One-way flight from Colorado to Portland
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Colorado to Portland.
Search Deals
Price to beat on a one-way flight from Colorado to Portland.
Search Deals

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 November 4, 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

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 1/3

6:00 am-2:14 pm

1 stop6h 14m

Portland

Wed 1/7

8:40 am-4:29 pm

1 stop9h 49m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 1/14

7:10 am-5:16 pm

1 stop8h 06m

Portland

Sat 1/31

2:35 pm-10:48 pm

1 stop10h 13m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 12/3

11:34 am-10:23 pm

1 stop8h 49m

Portland

Sun 12/7

6:08 am-2:07 pm

1 stop9h 59m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 12/5

1:16 pm-10:23 pm

1 stop7h 07m

Portland

Sun 12/7

6:08 am-2:07 pm

1 stop9h 59m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 12/3

6:00 am-6:15 pm

2 stops10h 15m

Portland

Sun 12/7

6:00 am-11:11 am

1 stop7h 11m

$294

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 1/14

10:45 am-10:15 pm

2 stops9h 30m

Portland

Sat 1/31

5:10 am-1:05 pm

2 stops9h 55m

$299

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Mon 12/8

7:00 am-2:55 pm

1 stop5h 55m

Portland

Wed 12/10

12:45 pm-6:00 pm

1 stop7h 15m

$301

Grand JunctionPortland

GJT - PWM

GJTPWM

Grand Junction Regnl

Thu 12/4

7:30 am-10:34 pm

2 stops13h 04m

Portland

Mon 12/8

5:46 am-4:02 pm

2 stops12h 16m

$307

AspenPortland

ASE - PWM

ASEPWM

Aspen Pitkin County

Fri 1/16

12:23 pm-10:07 pm

1 stop7h 44m

Portland

Tue 1/20

6:00 am-7:04 pm

2 stops15h 04m

$314

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 11/25

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Mon 12/8

6:00 am-1:58 pm

1 stop9h 58m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 48 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 $174). 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 November 4, 2025.

When flying from Colorado to Portland, Maine, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 32% versus a flight in the morning.

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

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

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

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 14m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. There are 1776 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 Hayden Yampa Valley - Portland or Aspen Pitkin 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 $269. While the most popular route (Denver Intl - Portland) can be booked for $248 on average, our data indicates $666 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 $174). 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$232FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$192Average$501FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$249Average$310FlexibilityNo cancel feeOn-time62%
DeltaCheapest$249Average$317FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$274Average$435FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$613FlexibilityNo cancel feeOn-time69%

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