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$138+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap 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 June 9, 2026.

This Delta deal was found by Cheapflights users on 6/5. 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 9/91:40 pm
COS
-
PWM
1 stop6h 53m
Delta
Tue 9/156:05 am
PWM
-
COS
1 stop8h 09m
Delta
Deal found 6/5$287
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:11 pm
COS
-
PWM
1 stop7h 30m
United Airlines
Wed 8/196:03 am
PWM
-
COS
1 stop6h 30m
United Airlines
Deal found 6/7$289
This American Airlines deal was found by Cheapflights users on 6/9. 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 8/510:12 am
COS
-
PWM
2 stops9h 48m
American Airlines
Wed 8/121:30 pm
PWM
-
COS
2 stops11h 23m
American Airlines
Deal found 6/9$291
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:19 pm
COS
-
PWM
1 stop8h 06m
Delta
Tue 9/226:05 am
PWM
-
COS
1 stop8h 09m
Delta
Deal found 6/7$292
This American Airlines deal was found by Cheapflights users on 6/5. 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 9/118:00 am
COS
-
PWM
1 stop8h 46m
American Airlines
Wed 9/169:00 am
PWM
-
COS
1 stop9h 29m
American Airlines
Deal found 6/5$299
This Delta deal was found by Cheapflights users on 6/5. 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 9/11:21 pm
COS
-
PWM
1 stop7h 52m
Delta
Mon 9/76:05 am
PWM
-
COS
1 stop8h 10m
Delta
Deal found 6/5$302
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/61:20 pm
COS
-
PWM
1 stop7h 53m
Delta
Wed 8/1911:01 am
PWM
-
COS
2 stops12h 37m
Delta
Deal found 6/7$312
This Delta deal was found by Cheapflights users on 6/5. 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 9/31:21 pm
COS
-
PWM
1 stop7h 52m
Delta
Mon 9/76:05 am
PWM
-
COS
1 stop8h 10m
Delta
Deal found 6/5$317
This United Airlines deal was found by Cheapflights users on 6/5. 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 8/2111:55 am
COS
-
PWM
1 stop7h 28m
United Airlines
Tue 8/256:00 am
PWM
-
COS
1 stop6h 33m
United Airlines
Deal found 6/5$319
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:30 am
HDN
-
PWM
1 stop6h 19m
United Airlines
Wed 11/183:35 pm
PWM
-
HDN
1 stop6h 54m
United Airlines
Deal found 6/8$345
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:59 am
DEN
-
PWM
2 stops10h 55m
Delta
Sat 9/196:02 am
PWM
-
DEN
1 stop6h 46m
Delta
Deal found 6/7$364
This American Airlines deal was found by Cheapflights users on 6/9. 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 10/287:19 pm
GJT
-
PWM
2 stops14h 35m
American Airlines
Tue 11/312:29 pm
PWM
-
GJT
2 stops10h 20m
American Airlines
Deal found 6/9$369

Find flight deals from Colorado to Portland

Keep the following information in mind while searching for Colorado to Portland flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$287
(Delta)

One-way from

$138
(Southwest)

Popular in

June

Cheapest in

January

Average price

$530

Good round-trip deal

$538 or less

Good one-way deal

$363 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. 13% potential increase in price ($69 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 June 2026
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 June 9, 2026.
Use the filters below to find and compare flights from Colorado to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Fri 8/7

1:20 pm-11:13 pm

1 stop7h 53m

Portland

Wed 8/19

6:05 am-12:15 pm

1 stop8h 10m

$312

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Thu 8/6

12:11 pm-9:41 pm

1 stop7h 30m

Portland

Tue 8/18

6:00 am-10:33 am

1 stop6h 33m

$332

HaydenPortland

HDN - PWM

HDNPWM

Hayden Yampa Valley

Tue 11/17

7:30 am-3:49 pm

1 stop6h 19m

Portland

Wed 11/18

9:10 am-8:29 pm

2 stops13h 19m

$350

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Tue 10/27

12:16 pm-9:27 pm

1 stop7h 11m

Portland

Wed 10/28

4:48 pm-11:59 pm

2 stops9h 11m

$354

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Wed 8/5

1:30 pm-11:51 pm

2 stops8h 21m

Portland

Wed 8/12

6:03 am-10:33 am

1 stop6h 30m

$376

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 7/12

12:40 am-4:01 pm

2 stops13h 21m

Portland

Tue 7/21

6:00 am-10:58 am

1 stop6h 58m

$379

AspenPortland

ASE - PWM

ASEPWM

Aspen Pitkin County

Wed 9/16

7:00 am-4:54 pm

1 stop7h 54m

Portland

Mon 9/21

1:53 pm-9:29 pm

1 stop9h 36m

$409

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Mon 7/20

11:55 pm-12:59 am

1 stop23h 04m

Portland

Tue 7/28

4:52 pm-12:23 am

2 stops9h 31m

$412

DurangoPortland

DRO - PWM

DROPWM

Durango La Plata County

Wed 8/26

6:05 am-10:00 pm

2 stops13h 55m

Portland

Tue 9/8

7:28 am-7:58 pm

2 stops14h 30m

$425

DurangoPortland

DRO - PWM

DROPWM

Durango La Plata County

Tue 9/15

7:00 am-6:46 pm

1 stop9h 46m

Portland

Mon 9/21

9:00 am-4:17 pm

1 stop9h 17m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 52 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from Colorado to Portland, Maine (average of $158). Flying from Colorado to Portland, Maine in March is currently the most expensive (average of $296). 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 June 9, 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.

How much does it cost to fly round-trip from Colorado to Portland, Maine?

How far ahead should I book a flight from Colorado to Portland, Maine?

The best time to book flights from Colorado to Portland, Maine is 3 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 7h 30m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. There are 1804 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 United Airlines and Delta, with prices starting from $108 and $118, respectively.

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

    While some choose either Colorado Springs - Portland or Grand Junction Regnl - 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 $303. While the most popular route (Denver Intl - Portland) can be booked for $241 on average, our data indicates $521 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, July is the cheapest month in which you can book a flight from Colorado to Portland, Maine (average of $158). Flying from Colorado to Portland, Maine in March is currently the most expensive (average of $296). 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
Lewiston
Conway

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Alternative routes for Colorado to Portland

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Top 5 airlines flying from Colorado to Portland

Discover the top 5 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$192Average$539FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$234Average$399FlexibilityNo cancel feeOn-time62%
DeltaCheapest$246Average$400FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$276Average$508FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$588FlexibilityNo cancel feeOn-time69%

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