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Portland

$109+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$277
(Delta)

One-way from

$109
(United Airlines)

Popular in

July

Cheapest in

November

Average price

$483

Good round-trip deal

$489 or less

Good one-way deal

$347 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. 9% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 9/161:40 pmCOS - PWM
1 stop8h 23mDelta
Wed 9/245:40 amPWM - COS
1 stop9h 17mDelta
Deal found 6/10$277
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/221:49 pmDEN - PWM
1 stop6h 56mAmerican Airlines
Tue 7/296:25 pmPWM - DEN
1 stop7h 19mAmerican Airlines
Deal found 6/12$279
This American Airlines deal was found by Cheapflights users on 6/11. 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 9/1610:52 amCOS - PWM
2 stops11h 00mAmerican Airlines
Wed 9/246:00 amPWM - COS
1 stop7h 51mAmerican Airlines
Deal found 6/11$282
This Delta deal was found by Cheapflights users on 6/10. 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 9/36:25 amDEN - PWM
1 stop7h 45mDelta
Tue 9/96:00 amPWM - DEN
1 stop8h 46mDelta
Deal found 6/10$289
This JetBlue deal was found by Cheapflights users on 6/10. 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.
Fri 9/511:25 amDEN - PWM
1 stop8h 37mJetBlue
Thu 9/112:17 pmPWM - DEN
1 stop10h 47mJetBlue
Deal found 6/10$292
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:20 amGJT - PWM
2 stops12h 51mAmerican Airlines
Tue 9/309:18 amPWM - GJT
1 stop8h 43mAmerican Airlines
Deal found 6/12$294
This Southwest deal was found by Cheapflights users on 6/10. 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 9/55:20 amDEN - PWM
1 stop5h 55mSouthwest
Fri 9/122:00 pmPWM - DEN
2 stops8h 05mSouthwest
Deal found 6/10$294
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 7/123:54 pmDEN - PWM
1 stop6h 05mUnited Airlines
Sat 7/197:15 pmPWM - DEN
1 stop7h 15mUnited Airlines
Deal found 6/11$314
This Sun Country Air deal was found by Cheapflights users on 6/10. 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.
Sun 10/57:45 amDEN - PWM
1 stop6h 43mSun Country Air
Sun 10/1212:28 pmPWM - DEN
1 stop7h 12mSun Country Air
Deal found 6/10$355
This Southwest deal was found by Cheapflights users on 6/11. 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 7/2510:50 amCOS - PWM
1 stop11h 15mSouthwest
Wed 7/305:30 amPWM - COS
1 stop10h 40mSouthwest
Deal found 6/11$358
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 9/612:02 pmCOS - PWM
1 stop7h 57mUnited Airlines
Sat 9/206:14 amPWM - COS
1 stop6h 42mUnited Airlines
Deal found 6/11$367
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:00 amDEN - PWM
1 stop10h 13mFrontier
Sat 8/96:58 pmPWM - DEN
1 stop30h 13mFrontier
Deal found 6/10$373

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 12, 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

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Tue 9/16

1:40 pm-12:03 am

1 stop8h 23m

Portland

Wed 9/24

5:40 am-12:57 pm

1 stop9h 17m

$277

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 7/22

1:49 pm-10:45 pm

1 stop6h 56m

Portland

Tue 7/29

6:25 pm-11:44 pm

1 stop7h 19m

$279

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Tue 9/16

10:52 am-11:52 pm

2 stops11h 00m

Portland

Wed 9/24

9:18 am-4:18 pm

1 stop9h 00m

$282

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 9/3

6:25 am-4:10 pm

1 stop7h 45m

Portland

Tue 9/9

6:00 am-12:46 pm

1 stop8h 46m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 9/5

11:25 am-10:02 pm

1 stop8h 37m

Portland

Thu 9/11

2:17 pm-11:04 pm

1 stop10h 47m

$292

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 9/5

5:20 am-1:15 pm

1 stop5h 55m

Portland

Fri 9/12

2:00 pm-8:05 pm

2 stops8h 05m

$294

Grand JunctionPortland

GJT - PWM

GJTPWM

Grand Junction Regnl

Tue 9/23

5:20 am-8:11 pm

2 stops12h 51m

Portland

Tue 9/30

9:18 am-4:01 pm

1 stop8h 43m

$294

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 7/12

3:54 pm-11:59 pm

1 stop6h 05m

Portland

Fri 7/18

6:20 pm-11:22 pm

1 stop7h 02m

$314

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 10/5

7:45 am-4:28 pm

1 stop6h 43m

Portland

Sun 10/12

12:28 pm-5:40 pm

1 stop7h 12m

$355

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Fri 7/25

10:50 am-12:05 am

1 stop11h 15m

Portland

Wed 7/30

5:30 am-2:10 pm

1 stop10h 40m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June 12, 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.

Weekly flight availability from Colorado to Portland, Maine

Explore weekly flight availability from Colorado to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from USCO to PWM are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Breeze Airways, Southwest and Delta from Colorado to Portland. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Boarding

8.3

Comfort

8.2

Food

6.7

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Boarding

8.3

Comfort

8.2

Food

6.7

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Boarding

8.3

Comfort

8.2

Food

6.7

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,946 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Boarding

8.3

Comfort

8.2

Food

6.7

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Boarding

8.3

Comfort

8.2

Food

6.7

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,925 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Boarding

8.3

Comfort

8.2

Food

6.7

Entertainment

6.6

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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.

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

    $109 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on JetBlue and American Airlines, with prices starting from $134 and $139, 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 $273. While the most popular route (Denver Intl - Portland) can be booked for $247 on average our data indicates $682 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 Colorado?

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

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Alternative routes for Colorado to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$161Average$259FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$209Average$266FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$325FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$253Average$493FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$440FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$294Average$658FlexibilityNo cancel feeOn-time69%

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