How many flights depart from Colorado to Portland, Maine on average per week?

As of September 2026, 4 flights take off from Colorado and land in Portland, Maine each week. The most common flight departure day for this route is Mon, with 25% of weekly flights taking off on this day.

What is the cheapest airline that flies from Colorado to Portland?

American Airlines, Delta, and Southwest are the most popular carriers operating from Colorado to Portland

How long does it take to fly to Portland, Maine?

The flight from Colorado to Portland, Maine depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Denver (a popular airport in Colorado) to Boston (the most popular airport in Portland, Maine), then the flight time is 3h 45m on average. If you fly from Durango (another popular airport in Colorado) to Boston, then the average flight time is 6h 19m.

What airlines fly to Portland, Maine?

United Airlines, JetBlue and Southwest are the top three most popular airlines that fly to Portland, Maine from Colorado according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 6 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Colorado to Portland Airport?

Prices for flights from Colorado to Portland Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Colorado to Portland Airport?

The number of operators available for flights from Colorado to Portland Airport is 5 as of September 2026.

How old do you have to be to fly from Colorado to Portland Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$159 Cheap Flights from Colorado to Portland, Maine in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Portland

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:57 am - 9:46 pmCOS Colorado Springs-PWM Portland

7h 49m1 stop Chicago O'Hare Intl

5:08 pm - 9:57 pmPWM Portland-COS Colorado Springs

6h 49m1 stop Chicago O'Hare Intl

$357United Airlines

Thu, Oct 22 - Thu, Oct 29

11:57 am - 9:46 pmCOS Colorado Springs-PWM Portland

7h 49m1 stop Chicago O'Hare Intl

5:08 pm - 11:59 pmPWM Portland-COS Colorado Springs

8h 51m2 stops Chicago O'Hare Intl Denver Intl

$385United Airlines

Thu, Oct 22 - Thu, Oct 29

2:55 pm - 11:55 pmDEN Denver Intl-PWM Portland

7h 00m1 stop Baltimore/Washington

3:20 pm - 9:10 pmPWM Portland-DEN Denver Intl

7h 50m1 stop Baltimore/Washington

$388Southwest

Thu, Nov 5 - Sat, Nov 7

11:15 am - 9:40 pmDEN Denver Intl-PWM Portland

8h 25m1 stop Baltimore/Washington

12:50 pm - 7:30 pmPWM Portland-DEN Denver Intl

8h 40m1 stop Baltimore/Washington

$388Southwest

Wed, Jan 6 - Tue, Jan 12

1:18 pm - 4:24 pmDEN Denver Intl-PWM Portland

25h 06m1 stop Raleigh-Durham

3:53 pm - 7:30 pmPWM Portland-DEN Denver Intl

29h 37m2 stops Columbus Raleigh-Durham

$388Multiple Airlines

Fri, Oct 23 - Fri, Oct 30

4:24 pm - 9:08 amDEN Denver Intl-PWM Portland

14h 44m2 stops Dallas/Fort Worth Orlando

7:12 pm - 8:13 amPWM Portland-DEN Denver Intl

15h 01m1 stop Tampa

$391Multiple Airlines

Thu, Dec 3 - Wed, Dec 9

2:59 pm - 10:57 pmDEN Denver Intl-PWM Portland

5h 58m1 stop Philadelphia

6:00 am - 11:21 amPWM Portland-DEN Denver Intl

7h 21m1 stop Philadelphia

$399American Airlines

Fri, Nov 6 - Wed, Nov 11

8:00 am - 5:04 pmDEN Denver Intl-PWM Portland

7h 04m1 stop Chicago O'Hare Intl

6:00 am - 2:09 pmPWM Portland-DEN Denver Intl

10h 09m1 stop Philadelphia

$399American Airlines

Fri, Oct 30 - Sun, Nov 1

6:10 am - 4:10 pmDEN Denver Intl-PWM Portland

8h 00m1 stop Detroit Metropolitan Wayne County

6:00 am - 11:13 amPWM Portland-DEN Denver Intl

7h 13m1 stop New York John F Kennedy Intl

$399Delta

Sat, Nov 21 - Sun, Nov 22

1:14 pm - 11:52 pmDEN Denver Intl-PWM Portland

8h 38m1 stop Atlanta Hartsfield-Jackson

11:40 am - 4:30 pmPWM Portland-DEN Denver Intl

6h 50m1 stop New York LaGuardia

$399Delta

Thu, Dec 3 - Tue, Dec 8

Cheap last minute flights

Enter your travel dates to find the best prices.

11:00 am - 10:13 pmDEN Denver Intl-PWM Portland

9h 13m1 stop Charlotte Douglas

7:03 am - 12:30 pmPWM Portland-DEN Denver Intl

7h 27m1 stop Charlotte Douglas

$458American Airlines

Wed, Sep 30 - Tue, Oct 27

12:29 pm - 11:45 pmDEN Denver Intl-PWM Portland

9h 16m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

5:45 pm - 12:36 amPWM Portland-DEN Denver Intl

8h 51m1 stop Chicago O'Hare Intl

$463American Airlines

Wed, Sep 30 - Tue, Oct 27

6:00 am - 5:15 pmDEN Denver Intl-PWM Portland

9h 15m2 stops Nashville Intl Baltimore/Washington

5:40 am - 12:10 pmPWM Portland-DEN Denver Intl

8h 30m2 stops Baltimore/Washington Atlanta Hartsfield-Jackson

$493Southwest

Wed, Sep 30 - Tue, Oct 27

1:25 pm - 11:28 pmCOS Colorado Springs-PWM Portland

8h 03m1 stop Atlanta Hartsfield-Jackson

12:42 pm - 10:22 pmPWM Portland-COS Colorado Springs

11h 40m2 stops Detroit Metropolitan Wayne County Salt Lake City

$502Delta

Tue, Sep 29 - Tue, Oct 6

8:07 am - 6:46 pmCOS Colorado Springs-PWM Portland

8h 39m1 stop Dallas/Fort Worth

5:30 am - 4:51 pmPWM Portland-COS Colorado Springs

13h 21m2 stops Philadelphia Dallas/Fort Worth

$502American Airlines

Tue, Sep 29 - Tue, Oct 6

8:15 am - 11:28 pmCOS Colorado Springs-PWM Portland

13h 13m2 stops Salt Lake City Atlanta Hartsfield-Jackson

12:42 pm - 10:22 pmPWM Portland-COS Colorado Springs

11h 40m2 stops Detroit Metropolitan Wayne County Salt Lake City

$508Delta

Tue, Sep 29 - Tue, Oct 6

10:30 am - 9:19 pmDEN Denver Intl-PWM Portland

32h 49m2 stops Orlando Columbus

5:09 pm - 8:46 pmPWM Portland-DEN Denver Intl

29h 37m1 stop Raleigh-Durham

$508Multiple Airlines

Fri, Sep 25 - Tue, Oct 27

11:59 pm - 9:08 amDEN Denver Intl-PWM Portland

7h 09m1 stop Newark

7:25 pm - 12:30 amPWM Portland-DEN Denver Intl

7h 05m1 stop Washington, D.C. Dulles Intl

$567United Airlines

Mon, Sep 28 - Mon, Oct 5

6:00 am - 2:38 pmDEN Denver Intl-PWM Portland

6h 38m1 stop Chicago O'Hare Intl

7:25 pm - 12:30 amPWM Portland-DEN Denver Intl

7h 05m1 stop Washington, D.C. Dulles Intl

$567United Airlines

Wed, Sep 30 - Mon, Oct 5

6:00 am - 5:15 pmDEN Denver Intl-PWM Portland

9h 15m2 stops Nashville Intl Baltimore/Washington

5:35 am - 2:15 pmPWM Portland-DEN Denver Intl

10h 40m2 stops Baltimore/Washington Houston Hobby

$599Southwest

Wed, Sep 30 - Sat, Oct 3

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American Airlines flights from Colorado to Portland, Maine

Our best American Airlines deals on Colorado to Portland, Maine flight tickets

American Airlines

Oct 22

DEN12:17 pmDenver Intl

9h 26m

1 stop

PWM11:43 pmPortland

Oct 25

PWM5:30 amPortland

7h 52m

1 stop

DEN11:22 amDenver Intl

$429

American Airlines

Oct 21

DEN6:46 amDenver Intl

8h 18m

1 stop

PWM5:04 pmPortland

Oct 26

PWM4:27 pmPortland

9h 31m

2 stops

DEN11:58 pmDenver Intl

$438

American Airlines

Oct 13

DEN12:17 pmDenver Intl

9h 19m

2 stops

PWM11:36 pmPortland

Oct 22

PWM5:45 pmPortland

8h 51m

1 stop

DEN12:36 amDenver Intl

$439

United Airlines flights from Colorado to Portland, Maine

Our best United Airlines deals on Colorado to Portland, Maine flight tickets

United Airlines

Oct 22

COS11:57 amColorado Springs

7h 49m

1 stop

PWM9:46 pmPortland

Oct 29

PWM5:08 pmPortland

6h 49m

1 stop

COS9:57 pmColorado Springs

$357

United Airlines

Oct 22

COS11:57 amColorado Springs

7h 49m

1 stop

PWM9:46 pmPortland

Oct 29

PWM5:08 pmPortland

8h 51m

2 stops

COS11:59 pmColorado Springs

$385

United Airlines

Oct 17

DEN1:35 pmDenver Intl

7h 53m

1 stop

PWM11:28 pmPortland

Oct 28

PWM3:23 pmPortland

4h 51m

DEN6:14 pmDenver Intl

$389

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Thu 10/22

11:57 am-9:46 pm

1 stop7h 49m

Portland

Thu 10/29

5:08 pm-9:57 pm

1 stop6h 49m

$357

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Thu 10/22

11:57 am-9:46 pm

1 stop7h 49m

Portland

Thu 10/29

5:08 pm-11:59 pm

2 stops8h 51m

$385

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Thu 11/5

2:55 pm-11:55 pm

1 stop7h 00m

Portland

Sat 11/7

3:20 pm-9:10 pm

1 stop7h 50m

$388

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 1/6

11:15 am-9:40 pm

1 stop8h 25m

Portland

Tue 1/12

12:50 pm-7:30 pm

1 stop8h 40m

$388

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Fri 10/23

1:18 pm-4:24 pm

1 stop25h 06m

Portland

Fri 10/30

3:53 pm-7:30 pm

2 stops29h 37m

$388

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Thu 12/3

4:24 pm-9:08 am

2 stops14h 44m

Portland

Wed 12/9

7:12 pm-8:13 am

1 stop15h 01m

$391

Quickest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Fri 11/6

2:59 pm-10:57 pm

1 stop5h 58m

Portland

Wed 11/11

6:00 am-11:21 am

1 stop7h 21m

$399

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Fri 10/30

8:00 am-5:04 pm

1 stop7h 04m

Portland

Sun 11/1

6:00 am-2:09 pm

1 stop10h 09m

$399

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sat 11/21

6:10 am-4:10 pm

1 stop8h 00m

Portland

Sun 11/22

6:00 am-11:13 am

1 stop7h 13m

$399

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Thu 12/3

1:14 pm-11:52 pm

1 stop8h 38m

Portland

Tue 12/8

11:40 am-4:30 pm

1 stop6h 50m

$399

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Colorado is in January. Flight prices, which tend to average around $353, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $393.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Colorado is on a Friday. momondo users have found tickets for Friday departures for as low as $546. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $717.

What is the cheapest Colorado to Portland flight route?

Fly from Denver Intl to Portland for the best Colorado - Portland flight prices

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

You are more likely to see cheaper flights to Portland, Maine from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $478 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Colorado for as low as $360 on momondo.

What cabin class options are available on Colorado to Portland, Maine flights?

There are 4 cabin classes available to choose from on Colorado to Portland, Maine flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Portland, Maine flights?

You could potentially save up to 13% on your flight if you consider stops on a Colorado to Portland, Maine flight.

Cheap Colorado to Portland, Maine flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Portland, Maine

Best Price Found	$159
Fastest flight time	3h 51m
Direct flights	Every day
Airports in Portland, Maine	1 airport

The best one-way flight to Portland, Maine from Colorado in the past 72 hours is $159. The best round-trip flight deal from Colorado to Portland, Maine found on momondo in the last 72 hours is $357.

The fastest flight from Colorado to Portland, Maine takes 3h 51m

Direct flights go from Colorado to Portland, Maine every day.

There is 1 airport in Portland, Maine. From Colorado there are direct flights to Portland (PWM).

Search flight deals

Frequently asked questions about flying from Colorado to Portland, Maine

When did momondo last update prices for flights from Colorado to Portland Airport?
Prices for flights from Colorado to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Portland Airport?
The number of operators available for flights from Colorado to Portland Airport is 5 as of September 2026.
How old do you have to be to fly from Colorado to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Colorado to Portland, Maine?
momondo data reveals that the most frequently booked plane model on the route from Colorado to Portland, Maine is Boeing 737 MAX 9, representing 63.13% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 14.38%, Boeing 737 at 8.75%, and Boeing 737-800 at 5.00%.

Best airlines flying from Colorado to Portland, Maine

Compare and see reviews for airlines that fly from Colorado to Portland, Maine with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $249	Free Cancellation	Rating 7.8 8,598 reviews	Search Delta flights
JetBlue	PriceFrom $266	Free Cancellation	Rating 7.1 3,043 reviews	Search JetBlue flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 10,236 reviews	Search United Airlines flights
American Airlines	PriceFrom $318	Free Cancellation	Rating 7.0 12,085 reviews	Search American Airlines flights
Southwest	PriceFrom $348	Free Cancellation	Rating 8.0 4,200 reviews	Search Southwest flights

North Conway

Jackson

Boothbay Harbor

Brunswick

Lewiston

Freeport

Auburn

Conway

Bartlett

Gorham

Bath

Windham

Intervale

Oxford

Georgetown

Falmouth

Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Portland?

It is quick and easy to find Colorado to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

Can I find flights from Colorado to Portland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portland from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to Portland?

Once all potential Colorado to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Colorado to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

An easier way to manage your Portland, Maine trip

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Airports servicing Maine

Rockland Knox County Regional Airport

Cheap flights from Colorado to Portland from $159

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Portland departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Colorado to Portland, Maine

Our best American Airlines deals on Colorado to Portland, Maine flight tickets

United Airlines flights from Colorado to Portland, Maine

Our best United Airlines deals on Colorado to Portland, Maine flight tickets

momondo Fare Finder

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

See travel insights to Portland from

How to get the cheapest flight ticket from Colorado to Portland, Maine

What is the cheapest month to fly to Portland, Maine?

What is the cheapest day to depart on your flight to Portland, Maine?

What is the cheapest Colorado to Portland flight route?

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

What cabin class options are available on Colorado to Portland, Maine flights?

Can stopping save me money on Colorado to Portland, Maine flights?

What is the cheapest airline that flies from Colorado to Portland?

What airlines fly to Portland, Maine?

How many flights depart from Colorado to Portland, Maine on average per week?

How long does it take to fly to Portland, Maine?

Cheap Colorado to Portland, Maine flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Portland, Maine

Frequently asked questions about flying from Colorado to Portland, Maine

Best airlines flying from Colorado to Portland, Maine

Compare and see reviews for airlines that fly from Colorado to Portland, Maine with momondo

Traveling to a place near Portland?

Why use momondo?

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maine

Fly your favorite airline to Portland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portland

List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Colorado

According to popular flight searches on momondo this year

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