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 12m.

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

As of August 2026, 3 flights take off from Colorado and land in Portland, Maine each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.

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

JetBlue, United Airlines, and Southwest are the most popular carriers operating from Colorado to Portland

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 52% 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 August 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.

$149 Cheap Flights from Colorado to Portland, Maine in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Portland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 11:13 pmCOS Colorado Springs-PWM Portland

7h 53m1 stop Atlanta Hartsfield-Jackson

12:55 pm - 7:56 pmPWM Portland-COS Colorado Springs

9h 01m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$312Delta

Tue, Sep 1 - Wed, Sep 9

12:36 pm - 10:48 pmCOS Colorado Springs-PWM Portland

8h 12m1 stop Chicago O'Hare Intl

2:03 pm - 8:40 pmPWM Portland-COS Colorado Springs

8h 37m1 stop Chicago O'Hare Intl

$317American Airlines

Sat, Sep 5 - Fri, Sep 11

1:20 pm - 12:59 amCOS Colorado Springs-PWM Portland

9h 39m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

12:55 pm - 7:56 pmPWM Portland-COS Colorado Springs

9h 01m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$317Delta

Tue, Sep 1 - Wed, Sep 9

8:00 am - 9:21 pmCOS Colorado Springs-PWM Portland

11h 21m2 stops Dallas/Fort Worth Philadelphia

8:00 am - 2:54 pmPWM Portland-COS Colorado Springs

8h 54m1 stop Dallas/Fort Worth

$317American Airlines

Wed, Sep 2 - Sat, Sep 5

11:55 am - 9:23 pmCOS Colorado Springs-PWM Portland

7h 28m1 stop Chicago O'Hare Intl

6:03 am - 10:33 amPWM Portland-COS Colorado Springs

6h 30m1 stop Chicago O'Hare Intl

$332United Airlines

Tue, Aug 25 - Sat, Aug 29

5:30 am - 3:45 pmDEN Denver Intl-PWM Portland

8h 15m1 stop Baltimore/Washington

5:30 pm - 11:55 pmPWM Portland-DEN Denver Intl

8h 25m1 stop Baltimore/Washington

$393Southwest

Sun, Sep 27 - Thu, Oct 1

1:40 pm - 10:10 pmDEN Denver Intl-PWM Portland

6h 30m1 stop Chicago Midway

5:55 am - 10:20 amPWM Portland-DEN Denver Intl

6h 25m1 stop Baltimore/Washington

$393Southwest

Tue, Sep 15 - Fri, Sep 18

6:00 am - 1:55 pmDEN Denver Intl-PWM Portland

5h 55m1 stop Newark

3:45 pm - 9:09 pmPWM Portland-DEN Denver Intl

7h 24m1 stop Newark

$394United Airlines

Tue, Aug 25 - Sat, Sep 5

7:10 pm - 9:08 amDEN Denver Intl-PWM Portland

35h 58m2 stops Atlanta Hartsfield-Jackson Orlando

3:52 pm - 8:10 amPWM Portland-DEN Denver Intl

18h 18m1 stop Minneapolis St Paul

$396Multiple Airlines

Wed, Sep 16 - Sun, Sep 20

11:59 pm - 4:16 pmDEN Denver Intl-PWM Portland

14h 17m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham

7:00 am - 9:40 pmPWM Portland-DEN Denver Intl

16h 40m1 stop Cincinnati Cinci./N. Kentucky

$397Multiple Airlines

Fri, Aug 28 - Mon, Aug 31

Cheap last minute flights

Enter your travel dates to find the best prices.

8:00 am - 6:06 pmDEN Denver Intl-PWM Portland

8h 06m1 stop Philadelphia

5:30 am - 11:53 amPWM Portland-DEN Denver Intl

8h 23m1 stop Philadelphia

$489American Airlines

Sat, Aug 15 - Sun, Aug 23

12:50 pm - 11:37 pmDEN Denver Intl-PWM Portland

8h 47m1 stop Philadelphia

1:25 pm - 7:19 pmPWM Portland-DEN Denver Intl

7h 54m1 stop Charlotte Douglas

$489American Airlines

Fri, Aug 14 - Fri, Aug 21

1:15 pm - 11:13 pmDEN Denver Intl-PWM Portland

7h 58m1 stop Atlanta Hartsfield-Jackson

11:01 am - 10:05 pmPWM Portland-DEN Denver Intl

13h 04m2 stops New York LaGuardia Atlanta Hartsfield-Jackson

$494Delta

Fri, Aug 14 - Fri, Aug 21

10:19 am - 12:59 amDEN Denver Intl-PWM Portland

12h 40m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

11:01 am - 10:05 pmPWM Portland-DEN Denver Intl

13h 04m2 stops New York LaGuardia Atlanta Hartsfield-Jackson

$499Delta

Fri, Aug 14 - Fri, Aug 21

9:53 am - 3:51 pmDEN Denver Intl-PWM Portland

3h 58mnonstop

2:38 pm - 9:16 pmPWM Portland-DEN Denver Intl

8h 38m1 stop Washington, D.C. Dulles Intl

$557United Airlines

Fri, Aug 14 - Fri, Aug 21

9:53 am - 3:51 pmDEN Denver Intl-PWM Portland

3h 58mnonstop

5:03 pm - 11:54 pmPWM Portland-DEN Denver Intl

8h 51m1 stop Chicago O'Hare Intl

$586United Airlines

Sat, Aug 15 - Tue, Aug 18

9:15 am - 11:49 amDEN Denver Intl-PWM Portland

24h 34m1 stop Minneapolis St Paul

7:00 am - 11:00 pmPWM Portland-DEN Denver Intl

18h 00m2 stops Columbus Orlando

$586Multiple Airlines

Sat, Aug 15 - Wed, Aug 19

2:46 pm - 10:38 pmDEN Denver Intl-PWM Portland

29h 52m1 stop Cincinnati Cinci./N. Kentucky

7:00 am - 11:00 pmPWM Portland-DEN Denver Intl

18h 00m2 stops Columbus Orlando

$610Multiple Airlines

Thu, Aug 13 - Wed, Aug 19

12:10 pm - 10:25 pmDEN Denver Intl-PWM Portland

8h 15m2 stops Lambert-St Louis Baltimore/Washington

10:30 am - 6:00 pmPWM Portland-DEN Denver Intl

9h 30m2 stops Baltimore/Washington Chicago Midway

$884Southwest

Thu, Aug 13 - Mon, Aug 17

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

9h 15m2 stops Nashville Intl Baltimore/Washington

10:30 am - 5:45 pmPWM Portland-DEN Denver Intl

9h 15m2 stops Baltimore/Washington Raleigh-Durham

$887Southwest

Wed, Aug 12 - Mon, Aug 17

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Delta flights from Colorado to Portland, Maine

Our best Delta deals on Colorado to Portland, Maine flight tickets

Delta

Sep 1

COS1:20 pmColorado Springs

7h 53m

1 stop

PWM11:13 pmPortland

Sep 9

PWM12:55 pmPortland

9h 01m

2 stops

COS7:56 pmColorado Springs

$312

Delta

Sep 1

COS1:20 pmColorado Springs

9h 39m

2 stops

PWM12:59 amPortland

Sep 9

PWM12:55 pmPortland

9h 01m

2 stops

COS7:56 pmColorado Springs

$317

Delta

Aug 22

DEN12:00 pmDenver Intl

7h 31m

1 stop

PWM9:31 pmPortland

Sep 1

PWM6:00 amPortland

6h 47m

1 stop

DEN10:47 amDenver Intl

$394

American Airlines flights from Colorado to Portland, Maine

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

American Airlines

Sep 2

COS8:00 amColorado Springs

11h 21m

2 stops

PWM9:21 pmPortland

Sep 5

PWM12:24 pmPortland

12h 29m

2 stops

COS10:53 pmColorado Springs

$322

American Airlines

Sep 5

COS8:00 amColorado Springs

12h 48m

2 stops

PWM10:48 pmPortland

Sep 11

PWM1:42 pmPortland

11h 13m

2 stops

COS10:55 pmColorado Springs

$327

American Airlines

Aug 24

COS12:37 pmColorado Springs

8h 11m

1 stop

PWM10:48 pmPortland

Aug 26

PWM8:00 amPortland

8h 54m

1 stop

COS2:54 pmColorado Springs

$332

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Tue 9/1

1:20 pm-11:13 pm

1 stop7h 53m

Portland

Wed 9/9

12:55 pm-7:56 pm

2 stops9h 01m

$312

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Sat 9/5

12:36 pm-10:48 pm

1 stop8h 12m

Portland

Fri 9/11

2:03 pm-8:40 pm

1 stop8h 37m

$317

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Tue 9/1

1:20 pm-12:59 am

2 stops9h 39m

Portland

Wed 9/9

12:55 pm-7:56 pm

2 stops9h 01m

$317

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Wed 9/2

8:00 am-9:21 pm

2 stops11h 21m

Portland

Sat 9/5

8:00 am-2:54 pm

1 stop8h 54m

$317

Colorado SpringsPortland

COS Colorado Springs - PWM Portland

COSPWM

Colorado Springs

Tue 8/25

11:55 am-9:23 pm

1 stop7h 28m

Portland

Sat 8/29

6:03 am-10:33 am

1 stop6h 30m

$332

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sun 9/27

5:30 am-3:45 pm

1 stop8h 15m

Portland

Thu 10/1

5:30 pm-11:55 pm

1 stop8h 25m

$393

Quickest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 9/15

1:40 pm-10:10 pm

1 stop6h 30m

Portland

Fri 9/18

5:55 am-10:20 am

1 stop6h 25m

$393

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 8/25

6:00 am-1:55 pm

1 stop5h 55m

Portland

Sat 9/5

3:45 pm-9:09 pm

1 stop7h 24m

$394

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 9/16

7:10 pm-9:08 am

2 stops35h 58m

Portland

Sun 9/20

3:52 pm-8:10 am

1 stop18h 18m

$396

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Fri 8/28

11:59 pm-4:16 pm

2 stops14h 17m

Portland

Mon 8/31

7:00 am-9:40 pm

1 stop16h 40m

$397

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 $519. 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 $470 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 3 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	$353
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 $353. The best round-trip flight deal from Colorado to Portland, Maine found on momondo in the last 72 hours is $479.

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 August 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 39.61% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 31.40%, Boeing 737-900 at 9.18%, and Boeing 737-800 at 7.25%.

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 8,500 reviews	Search Delta flights
JetBlue	PriceFrom $266	Free Cancellation	Rating 7.1 3,031 reviews	Search JetBlue flights
Southwest	PriceFrom $276	Free Cancellation	Rating 8.0 4,218 reviews	Search Southwest flights
American Airlines	PriceFrom $289	Free Cancellation	Rating 7.1 11,899 reviews	Search American Airlines flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 10,103 reviews	Search United Airlines flights

North Conway

Boothbay Harbor

Jackson

Lewiston

Brunswick

Freeport

Gorham

Auburn

Bartlett

Conway

Windham

Bath

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 $118

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 11/12. 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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Delta flights from Colorado to Portland, Maine

Our best Delta deals on Colorado to Portland, Maine flight tickets

American Airlines flights from Colorado to Portland, Maine

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

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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.

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

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