How popular is this Portland, Maine to Colorado flight route?

Flights from Portland to Colorado have been viewed 1 times in the past calendar month.

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

Airlines like American Airlines, United Airlines, and Delta fly from Portland, Maine to Colorado in about 8h 02m. The time it takes to get you to your destination can typically vary by up to 1h 36m. Portland, Maine and Colorado are separated by a distance of 1776 mi. This flight may include one or multiple stops.

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

One-way options have recently been found by users for as low as $99 on American Airlines. Other airlines that offer cheap prices include United Airlines from $116 and Delta from $128 one-way.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

If weather is an important factor for your trip to Colorado, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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

The most popular flight routes from Portland, Maine to Colorado are Portland - Denver Intl, Portland - Colorado Springs and Portland - Montrose County.

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

Looking at all options, your cheapest flight can be booked for $198. While the most popular route (Portland - Denver Intl) can be booked for $246 on average, our data indicates $565 when flying from Portland, Maine to Colorado.

What are the most popular airlines that fly from Portland, Maine to Colorado?

The most popular airlines flying from Portland, Maine to Colorado are United Airlines, American Airlines and Southwest. Something to consider prior to booking your flight.

What airport do you fly from for flights from Portland to Colorado?

If you book a flight to Colorado from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

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

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

How can I find direct flights from Portland to Colorado?

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

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

Yes. Cheapflights offers flight deals from Portland to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$113+ Flights from Portland, ME to Colorado

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Portland to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Colorado

Cheapest flights from Portland to Colorado
Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Wed 12/2412:57 pmPWM - DEN

1 stop6h 35mDelta

Wed 12/312:30 pmDEN - PWM

1 stop6h 13mDelta

Deal found 12/17

$419

Wed 12/315:30 amPWM - DEN

1 stop8h 30mUnited Airlines

Sun 1/411:59 pmDEN - PWM

1 stop7h 45mUnited Airlines

Deal found 12/17

$439

Thu 12/259:30 amPWM - DEN

1 stop7h 13mUnited Airlines

Mon 12/2911:59 pmDEN - PWM

1 stop7h 45mUnited Airlines

Deal found 12/17

$479

Tue 12/165:34 amPWM - DRO

2 stops12h 25mAmerican Airlines

Tue 1/1311:47 amDRO - PWM

2 stops9h 56mAmerican Airlines

Deal found 12/16

$484

Tue 12/237:30 pmPWM - DEN

1 stop6h 45mUnited Airlines

Tue 12/3011:59 pmDEN - PWM

1 stop7h 45mUnited Airlines

Deal found 12/16

$494

Wed 12/317:30 pmPWM - DEN

2 stops15h 35mUnited Airlines

Mon 1/511:59 pmDEN - PWM

1 stop7h 02mUnited Airlines

Deal found 12/17

$502

Wed 12/176:08 amPWM - COS

2 stops13h 11mDelta

Thu 12/181:42 pmCOS - PWM

1 stop6h 41mDelta

Deal found 12/16

$523

Fri 12/197:30 pmPWM - DEN

1 stop6h 45mUnited Airlines

Sat 1/312:32 pmDEN - PWM

1 stop8h 50mUnited Airlines

Deal found 12/16

$524

Thu 12/255:30 amPWM - DEN

1 stop8h 50mSouthwest

Mon 12/291:10 pmDEN - PWM

2 stops8h 55mSouthwest

Deal found 12/17

$528

Tue 12/2312:21 pmPWM - DEN

2 stops12h 05mAmerican Airlines

Tue 12/3012:01 pmDEN - PWM

1 stop8h 54mAmerican Airlines

Deal found 12/16

$534

Wed 12/319:30 amPWM - COS

1 stop27h 54mUnited Airlines

Sun 1/48:50 pmCOS - PWM

2 stops10h 54mUnited Airlines

Deal found 12/17

$535

Sat 12/205:40 pmPWM - DEN

1 stop8h 45mSouthwest

Sat 1/35:55 amDEN - PWM

2 stops9h 10mSouthwest

Deal found 12/16

$549

Best flights from Portland to Colorado
Discover carefully curated flight deals from Portland to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Wed 2/253:40 pmPWM - DEN

1 stop8h 02mAmerican Airlines

Wed 3/46:59 amDEN - PWM

1 stop6h 09mAmerican Airlines

Deal found 12/18

$251

Tue 5/52:25 pmPWM - DEN

1 stop9h 21mUnited Airlines

Sat 5/99:40 amDEN - PWM

Nonstop3h 55mUnited Airlines

Deal found 12/17

$279

Tue 1/612:45 pmPWM - DEN

1 stop8h 35mSouthwest

Wed 1/146:20 amDEN - PWM

1 stop6h 35mSouthwest

Deal found 12/17

$305

Tue 1/135:30 amPWM - MTJ

1 stop9h 38mDelta

Tue 1/202:05 pmMTJ - PWM

1 stop6h 22mDelta

Deal found 12/18

$328

Sat 1/175:30 amPWM - DEN

2 stops10h 44mAmerican Airlines

Wed 1/2110:45 amDEN - PWM

2 stops10h 09mAmerican Airlines

Deal found 12/17

$261

Tue 1/136:00 amPWM - DEN

1 stop10h 02mUnited Airlines

Sun 1/186:00 amDEN - PWM

1 stop6h 39mUnited Airlines

Deal found 12/17

$280

Sat 1/243:05 pmPWM - DEN

1 stop9h 57mUnited Airlines

Sun 2/16:00 amDEN - PWM

1 stop6h 39mUnited Airlines

Deal found 12/16

$289

Mon 2/235:31 amPWM - MTJ

1 stop9h 43mDelta

Sat 2/282:13 pmMTJ - PWM

1 stop6h 53mDelta

Deal found 12/17

$328

Sun 1/113:42 pmPWM - DEN

1 stop9h 20mUnited Airlines

Sat 1/177:45 amDEN - PWM

1 stop9h 09mUnited Airlines

Deal found 12/16

$289

Fri 2/2712:17 pmPWM - DEN

2 stops12h 19mAmerican Airlines

Wed 3/46:59 amDEN - PWM

1 stop9h 04mAmerican Airlines

Deal found 12/16

$320

Thu 1/223:12 pmPWM - DEN

1 stop9h 50mUnited Airlines

Mon 1/2611:59 pmDEN - PWM

1 stop7h 02mUnited Airlines

Deal found 12/17

$289

Thu 1/227:00 amPWM - DEN

2 stops10h 16mAmerican Airlines

Mon 1/2612:34 pmDEN - PWM

2 stops8h 20mAmerican Airlines

Deal found 12/17

$320

Wed 3/43:05 pmPWM - DEN

1 stop8h 53mUnited Airlines

Mon 3/911:59 pmDEN - PWM

1 stop8h 50mUnited Airlines

Deal found 12/15

$289

Wed 4/112:49 pmPWM - COS

2 stops13h 10mAmerican Airlines

Wed 4/86:17 amCOS - PWM

2 stops13h 07mAmerican Airlines

Deal found 12/15

$327

Wed 4/15:30 amPWM - COS

1 stop8h 48mDelta

Wed 4/81:15 pmCOS - PWM

2 stops8h 55mDelta

Deal found 12/16

$413

Tue 1/135:20 amPWM - MTJ

2 stops10h 45mAmerican Airlines

Tue 1/202:57 pmMTJ - PWM

3 stops19h 09mAmerican Airlines

Deal found 12/16

$339

Fri 5/16:00 amPWM - COS

1 stop8h 59mDelta

Fri 5/81:40 pmCOS - PWM

1 stop6h 23mDelta

Deal found 12/17

$418

Tue 2/105:30 amPWM - MTJ

1 stop9h 38mDelta

Tue 2/242:13 pmMTJ - PWM

1 stop6h 53mDelta

Deal found 12/17

$438

Tue 2/245:45 amPWM - COS

1 stop7h 10mUnited Airlines

Wed 2/2511:36 amCOS - PWM

2 stops9h 44mUnited Airlines

Deal found 12/17

$366

Tue 3/107:00 amPWM - DRO

2 stops13h 07mAmerican Airlines

Wed 3/1811:37 amDRO - PWM

2 stops10h 13mAmerican Airlines

Deal found 12/16

$389

Sat 1/248:40 amPWM - GJT

2 stops13h 38mUnited Airlines

Tue 1/277:00 amGJT - PWM

2 stops9h 52mUnited Airlines

Deal found 12/16

$389

Tue 2/105:20 amPWM - MTJ

2 stops10h 45mAmerican Airlines

Tue 2/2412:27 pmMTJ - PWM

2 stops21h 20mAmerican Airlines

Deal found 12/18

$404

Tue 5/53:30 pmPWM - COS

1 stop8h 28mUnited Airlines

Sat 5/97:00 amCOS - PWM

1 stop6h 35mUnited Airlines

Deal found 12/17

$400

Wed 5/67:06 amPWM - EGE

2 stops12h 47mAmerican Airlines

Fri 5/158:31 amEGE - PWM

2 stops10h 53mAmerican Airlines

Deal found 12/16

$444

Sat 1/246:00 amPWM - DRO

2 stops12h 55mUnited Airlines

Wed 1/2810:40 amDRO - PWM

2 stops10h 50mUnited Airlines

Deal found 12/16

$441

Tue 6/25:14 amPWM - GJT

2 stops13h 00mAmerican Airlines

Wed 6/105:53 amGJT - PWM

1 stop9h 23mAmerican Airlines

Deal found 12/17

$484

Mon 1/1912:40 pmPWM - GJT

2 stops11h 40mAmerican Airlines

Mon 1/267:06 amGJT - PWM

2 stops13h 01mAmerican Airlines

Deal found 12/17

$489

Tue 1/276:00 amPWM - GUC

2 stops10h 43mUnited Airlines

Sat 1/317:00 amGUC - PWM

2 stops9h 54mUnited Airlines

Deal found 12/16

$505

Tue 1/276:00 amPWM - HDN

2 stops10h 25mUnited Airlines

Thu 1/291:32 pmHDN - PWM

2 stops22h 59mUnited Airlines

Deal found 12/15

$537

Sat 1/108:40 amPWM - EGE

2 stops11h 41mUnited Airlines

Wed 1/1412:30 pmEGE - PWM

2 stops24h 01mUnited Airlines

Deal found 12/16

$539

Last-minute flights from Portland to Colorado
Discover last-minute flight deals from Portland to Colorado. Data last updated December 18, 2025 and is based on user searches.

Sat 1/103:58 pmPWM - DEN

1 stop8h 26mAmerican Airlines

Sat 1/176:00 amDEN - PWM

1 stop7h 31mAmerican Airlines

Deal found 12/17

$291

Sun 1/117:00 amPWM - DEN

1 stop7h 49mAmerican Airlines

Sat 1/178:44 amDEN - PWM

2 stops10h 53mAmerican Airlines

Deal found 12/16

$275

Sun 1/113:42 pmPWM - DEN

1 stop9h 20mUnited Airlines

Sat 1/177:45 amDEN - PWM

1 stop9h 09mUnited Airlines

Deal found 12/16

$289

Tue 1/135:20 amPWM - MTJ

2 stops10h 45mAmerican Airlines

Tue 1/202:57 pmMTJ - PWM

3 stops19h 09mAmerican Airlines

Deal found 12/17

$339

Tue 1/135:30 amPWM - MTJ

1 stop9h 38mDelta

Tue 1/202:05 pmMTJ - PWM

1 stop6h 22mDelta

Deal found 12/17

$376

Thu 1/151:00 pmPWM - DEN

1 stop11h 40mSouthwest

Sun 1/186:20 amDEN - PWM

1 stop6h 35mSouthwest

Deal found 12/16

$294

Sat 1/1712:45 pmPWM - DEN

1 stop8h 47mAmerican Airlines

Tue 1/206:00 amDEN - PWM

1 stop7h 31mAmerican Airlines

Deal found 12/17

$251

Sat 1/175:30 amPWM - DEN

2 stops12h 51mAmerican Airlines

Wed 1/216:00 amDEN - PWM

1 stop7h 31mAmerican Airlines

Deal found 12/17

$256

Sat 1/248:40 amPWM - GJT

2 stops13h 38mUnited Airlines

Tue 1/277:00 amGJT - PWM

2 stops9h 52mUnited Airlines

Deal found 12/16

$389

Mon 1/265:06 pmPWM - DEN

2 stops27h 53mMultiple Airlines

Tue 2/31:20 pmDEN - PWM

1 stop26h 18mMultiple Airlines

Deal found 12/16

$246

Mon 1/263:58 pmPWM - DEN

1 stop7h 13mAmerican Airlines

Tue 2/36:00 amDEN - PWM

1 stop7h 31mAmerican Airlines

Deal found 12/17

$270

Mon 1/2611:29 amPWM - DEN

1 stop12h 20mMultiple Airlines

Mon 2/29:05 pmDEN - PWM

2 stops35h 12mMultiple Airlines

Deal found 12/17

$282

One-way flights from Portland to Colorado
Search for one-way flight options from Portland to Colorado. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Thu 5/142:18 pmPWM - DEN

1 stop10h 43mJetBlue

Deal found 12/17

$113

Thu 1/151:00 pmPWM - DEN

1 stop11h 40mSouthwest

Deal found 12/16

$150

Thu 5/145:30 pmPWM - DEN

1 stop6h 49mAmerican Airlines

Deal found 12/16

$179

Thu 5/143:30 pmPWM - DEN

Nonstop4h 38mUnited Airlines

Deal found 12/16

$274

Thu 1/110:19 amPWM - DEN

1 stop8h 18mUnited Airlines

Deal found 12/18

$279

Fri 1/25:30 amPWM - DEN

1 stop8h 30mUnited Airlines

Deal found 12/18

$299

Sun 2/154:15 pmPWM - DEN

1 stop8h 51mUnited Airlines

Deal found 12/16

$349

Thu 1/16:00 amPWM - DEN

2 stops9h 55mAmerican Airlines

Deal found 12/18

$354

Tue 12/3010:49 amPWM - DEN

3 stops40h 34mMultiple Airlines

Deal found 12/17

$407

Tue 12/305:45 amPWM - DEN

1 stop7h 26mAmerican Airlines

Deal found 12/16

$429

Find flight deals from Portland to Colorado

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$246 (Kiwi.com)
One-way from	$113 (JetBlue)
Popular in	February
Cheapest in	January
Average price	$357
Good round-trip deal	$410 or less
Good one-way deal	$337 or less

Provider with most accurate pricing for Boston Logan Intl-Denver Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Denver Intl flights.

Search Deals

From Portland to Colorado

Search Deals

One-way flight from Portland to Colorado

Search Deals

High demand for flights, 3% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Portland to Colorado.

Search Deals

Price to beat on a one-way flight from Portland to Colorado.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 2/25

3:40 pm-9:42 pm

1 stop8h 02m

Denver Intl

Wed 3/4

6:59 am-3:08 pm

1 stop6h 09m

$251

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 1/17

5:30 am-2:14 pm

2 stops10h 44m

Denver Intl

Wed 1/21

10:45 am-10:54 pm

2 stops10h 09m

$261

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 5/5

2:25 pm-9:46 pm

1 stop9h 21m

Denver Intl

Sat 5/9

9:40 am-3:35 pm

Nonstop3h 55m

$279

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 1/13

6:00 am-2:02 pm

1 stop10h 02m

Denver Intl

Sun 1/18

6:00 am-2:39 pm

1 stop6h 39m

$280

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 1/24

3:05 pm-11:02 pm

1 stop9h 57m

Denver Intl

Sun 2/1

6:00 am-2:39 pm

1 stop6h 39m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sun 1/11

3:42 pm-11:02 pm

1 stop9h 20m

Denver Intl

Sat 1/17

7:45 am-6:54 pm

1 stop9h 09m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 1/22

3:12 pm-11:02 pm

1 stop9h 50m

Denver Intl

Mon 1/26

11:59 pm-9:01 am

1 stop7h 02m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 3/4

3:05 pm-9:58 pm

1 stop8h 53m

Denver Intl

Mon 3/9

11:59 pm-10:49 am

1 stop8h 50m

$289

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 1/6

12:45 pm-7:20 pm

1 stop8h 35m

Denver Intl

Wed 1/14

6:20 am-2:55 pm

1 stop6h 35m

$305

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 2/27

12:17 pm-10:36 pm

2 stops12h 19m

Denver Intl

Wed 3/4

6:59 am-6:03 pm

1 stop9h 04m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 38 results

Best time to book a flight from Portland to Colorado

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

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

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $87). Flying from Portland, Maine to Colorado in August is currently the most expensive (average of $169). 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 PWM to CO?

It’s typically best to fly out from Portland, Maine to Colorado in the evening. Doing so could potentially save you 52% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

Reviews of airlines servicing Colorado

See what other customers who have flown with Southwest, Delta, and United Airlines from Portland to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,005 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,091 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,054 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

JetBlue

7.2

Good

2,897 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

What airport do you fly from for flights from Portland to Colorado?
If you book a flight to Colorado from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.
How popular is this Portland, Maine to Colorado flight route?
Flights from Portland to Colorado have been viewed 1 times in the past calendar month.
How long is the flight from Portland, Maine to Colorado?
Airlines like American Airlines, United Airlines, and Delta fly from Portland, Maine to Colorado in about 8h 02m. The time it takes to get you to your destination can typically vary by up to 1h 36m. Portland, Maine and Colorado are separated by a distance of 1776 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Portland, Maine to Colorado one-way?
One-way options have recently been found by users for as low as $99 on American Airlines. Other airlines that offer cheap prices include United Airlines from $116 and Delta from $128 one-way.
What are the most popular routes from Portland, Maine to Colorado?
The most popular flight routes from Portland, Maine to Colorado are Portland - Denver Intl, Portland - Colorado Springs and Portland - Montrose County.
What are the cheapest flights from Portland, Maine to Colorado?
Looking at all options, your cheapest flight can be booked for $198. While the most popular route (Portland - Denver Intl) can be booked for $246 on average, our data indicates $565 when flying from Portland, Maine to Colorado.
Can I find deals for flights from Portland to Colorado that include hotel bookings?
Yes. In addition to deals on Portland to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Colorado?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Colorado.
Can I find deals for business class flights from Portland to Colorado?
Yes. Cheapflights offers flight deals from Portland to Colorado 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 Portland, Maine to Colorado?
Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Colorado (average of $87). Flying from Portland, Maine to Colorado in August is currently the most expensive (average of $169). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Portland to Colorado

Boston to Miami flights

Boston to Fort Lauderdale flights

Boston to Orlando flights

Boston to Tampa flights

Boston to Los Angeles flights

Boston to Las Vegas flights

Boston to Dallas/Fort Worth flights

Boston to Denver flights

Boston to Fort Myers flights

Boston to West Palm Beach flights

Boston to San Francisco flights

Boston to Atlanta flights

Boston to Sky Harbor Intl flights

Boston to O'Hare Intl flights

Boston to New Orleans flights

Boston to Seattle flights

Boston to Sarasota flights

Boston to Hobby flights

Boston to Baltimore flights

Boston to Nashville flights

Boston to Salt Lake City flights

Boston to LaGuardia flights

Boston to George Bush Intcntl flights

Boston to Reagan-National flights

Boston to Dulles Intl flights

Boston to Newark flights

Boston to Austin flights

Boston to John F Kennedy Intl flights

Boston to Charlotte flights

Boston to San Diego flights

Boston to Charleston flights

Boston to Honolulu flights

Boston to Philadelphia flights

Boston to Key West flights

Boston to Ontario flights

Boston to Detroit flights

Boston to Raleigh flights

Boston to Jacksonville flights

Boston to Savannah flights

Boston to Love Field flights

Boston to Midway flights

Boston to Minneapolis flights

Boston to Bozeman flights

Boston to Indianapolis flights

Boston to Columbus flights

Boston to Pittsburgh flights

Boston to Kansas City flights

Boston to Santa Ana flights

Boston to Portland flights

Boston to St. Louis flights

Complete your trip

Colorado car rentals

Denver Intl Airport car rentals

Colorado Springs Airport car rentals

Vail Eagle County Airport car rentals

Aspen Pitkin County Airport car rentals

Grand Junction Regnl Airport car rentals

Montrose County Airport car rentals

Durango La Plata County Airport car rentals

Gunnison Airport car rentals

Telluride Airport car rentals

Denver Arapahoe Co Airport car rentals

Pueblo Memorial Airport car rentals

Top 6 airlines flying from Portland to Colorado

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$151	Average$258	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$226	Average$341	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$254	Average$462	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$256	Average$354	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$260	Average$641	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$292	Average$443	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$113+ Cheap flights from Portland, ME (PWM) to Colorado

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Colorado with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Colorado

Cheapest flights from Portland to ColoradoExplore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from Portland to Colorado

Keep the following information in mind while searching for Portland to Colorado flight deals. Data was last updated December 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Colorado that are best for you.

Best time to book a flight from Portland to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Portland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portland to Colorado

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

What is the cheapest time of day to fly from PWM to CO?

Find hourly flight availability from Portland to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

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

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

Reviews of airlines servicing Colorado

See what other customers who have flown with Southwest, Delta, and United Airlines from Portland to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How popular is this Portland, Maine to Colorado flight route?

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

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

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

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

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

How can I find direct flights from Portland to Colorado?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Portland to Colorado

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Portland to Colorado
Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.