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

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

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

As of June 2026, 5 flights take off from Colorado and land in Portland, Maine each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.

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 51m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Boston, then the average flight time is 5h 50m.

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 June 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.

$142 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.

12:37 pm - 11:47 pm

COS

PWM

9h 10m

1 stop

7:14 am - 11:37 am

PWM

COS

6h 23m

1 stop

$271American Airlines

Tue, Sep 29 - Tue, Oct 6

10:14 am - 11:47 pm

COS

PWM

11h 33m

2 stops

7:14 am - 11:37 am

PWM

COS

6h 23m

1 stop

$276American Airlines

Tue, Sep 29 - Tue, Oct 6

1:20 pm - 11:13 pm

COS

PWM

7h 53m

1 stop

6:05 am - 12:15 pm

PWM

COS

8h 10m

1 stop

$277Delta

Wed, Aug 5 - Wed, Aug 12

1:20 pm - 12:59 am

COS

PWM

9h 39m

2 stops

6:05 am - 12:15 pm

PWM

COS

8h 10m

1 stop

$282Delta

Wed, Aug 5 - Wed, Aug 12

11:55 am - 9:23 pm

COS

PWM

7h 28m

1 stop

6:00 am - 10:55 am

PWM

COS

6h 55m

1 stop

$311United Airlines

Mon, Sep 21 - Sat, Sep 26

7:24 am - 11:23 pm

HDN

PWM

13h 59m

2 stops

3:27 pm - 8:17 pm

PWM

HDN

6h 50m

1 stop

$369United Airlines

Mon, Oct 26 - Sat, Oct 31

11:37 pm - 12:30 pm

DEN

PWM

10h 53m

2 stops

6:00 am - 1:11 pm

PWM

DEN

9h 11m

1 stop

$377JetBlue

Mon, Aug 24 - Sun, Aug 30

11:59 pm - 1:45 pm

DEN

PWM

11h 46m

1 stop

2:49 pm - 10:42 pm

PWM

DEN

9h 53m

1 stop

$386JetBlue

Tue, Jul 28 - Wed, Aug 5

10:00 am - 8:55 pm

DEN

PWM

8h 55m

2 stops

5:35 am - 11:20 am

PWM

DEN

7h 45m

1 stop

$391Southwest

Sat, Jul 4 - Sat, Jul 11

11:15 am - 9:00 pm

DEN

PWM

7h 45m

2 stops

5:40 am - 1:10 pm

PWM

DEN

9h 30m

2 stops

$393Southwest

Sat, Aug 15 - Sat, Aug 22

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United Airlines flights from Colorado to Portland, Maine

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

United Airlines

Sep 21

COS11:55 amColorado Springs

7h 28m

1 stop

PWM9:23 pmPortland

Sep 26

PWM6:00 amPortland

6h 55m

1 stop

COS10:55 amColorado Springs

$311

United Airlines

Oct 26

HDN7:24 amHayden Yampa Valley

13h 59m

2 stops

PWM11:23 pmPortland

Oct 31

PWM3:27 pmPortland

6h 50m

1 stop

HDN8:17 pmHayden Yampa Valley

$369

United Airlines

Aug 25

COS11:55 amColorado Springs

7h 28m

1 stop

PWM9:23 pmPortland

Aug 26

PWM6:03 amPortland

6h 30m

1 stop

COS10:33 amColorado Springs

$371

American Airlines flights from Colorado to Portland, Maine

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

American Airlines

Sep 29

COS12:37 pmColorado Springs

9h 10m

1 stop

PWM11:47 pmPortland

Oct 6

PWM7:14 amPortland

6h 23m

1 stop

COS11:37 amColorado Springs

$271

American Airlines

Sep 29

COS10:14 amColorado Springs

11h 33m

2 stops

PWM11:47 pmPortland

Oct 6

PWM7:14 amPortland

6h 23m

1 stop

COS11:37 amColorado Springs

$276

American Airlines

Sep 29

COS12:37 pmColorado Springs

9h 10m

1 stop

PWM11:47 pmPortland

Oct 6

PWM7:14 amPortland

6h 23m

1 stop

COS11:37 amColorado Springs

$289

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Tue 9/29

12:37 pm-11:47 pm

1 stop9h 10m

Portland

Tue 10/6

7:14 am-11:37 am

1 stop6h 23m

$271

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Tue 9/29

10:14 am-11:47 pm

2 stops11h 33m

Portland

Tue 10/6

7:14 am-11:37 am

1 stop6h 23m

$276

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Wed 8/5

1:20 pm-11:13 pm

1 stop7h 53m

Portland

Wed 8/12

6:05 am-12:15 pm

1 stop8h 10m

$277

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Wed 8/5

1:20 pm-12:59 am

2 stops9h 39m

Portland

Wed 8/12

6:05 am-12:15 pm

1 stop8h 10m

$282

Quickest round-trip

Colorado SpringsPortland

COS - PWM

COSPWM

Colorado Springs

Mon 9/21

11:55 am-9:23 pm

1 stop7h 28m

Portland

Sat 9/26

6:00 am-10:55 am

1 stop6h 55m

$311

HaydenPortland

HDN - PWM

HDNPWM

Hayden Yampa Valley

Mon 10/26

7:24 am-11:23 pm

2 stops13h 59m

Portland

Sat 10/31

3:27 pm-8:17 pm

1 stop6h 50m

$369

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Mon 8/24

11:37 pm-12:30 pm

2 stops10h 53m

Portland

Sun 8/30

6:00 am-1:11 pm

1 stop9h 11m

$377

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 7/28

11:59 pm-1:45 pm

1 stop11h 46m

Portland

Wed 8/5

2:49 pm-10:42 pm

1 stop9h 53m

$386

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 7/4

10:00 am-8:55 pm

2 stops8h 55m

Portland

Sat 7/11

5:35 am-11:20 am

1 stop7h 45m

$391

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 8/15

11:15 am-9:00 pm

2 stops7h 45m

Portland

Sat 8/22

5:40 am-1:10 pm

2 stops9h 30m

$393

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 July. Flight prices, which tend to average around $158, 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 July, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $168.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $537. 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 $707.

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 $465 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	$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 $488.

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 June 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 8, representing 46.24% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 20.81%, Boeing 737-900 at 14.45%, and Boeing 737 at 6.94%.

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
American Airlines	PriceFrom $192	Free Cancellation	Rating 7.1 11,772 reviews	Search American Airlines flights
Delta	PriceFrom $246	Free Cancellation	Rating 7.8 8,453 reviews	Search Delta flights
JetBlue	PriceFrom $266	Free Cancellation	Rating 7.1 3,011 reviews	Search JetBlue flights
Southwest	PriceFrom $276	Free Cancellation	Rating 7.9 4,245 reviews	Search Southwest flights
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 9,893 reviews	Search United Airlines flights

North Conway

Boothbay Harbor

Jackson

Lewiston

Brunswick

Freeport

Conway

Bartlett

Gorham

Auburn

Windham

Intervale

Bath

Oxford

Falmouth

Georgetown

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.

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Cheap flights from Colorado to Portland from $142

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 7/4. 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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United Airlines flights from Colorado to Portland, Maine

Our best United Airlines 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

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

Best Price Found

Fastest flight time

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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.

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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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