Which layover airport has the shortest connection time from Portland, Maine to Denver?

Charlotte (CLT) has the shortest average layover time for this route: 1h 10m.

Which layover airport has the shortest travel time from Portland, Maine to Denver?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 6h 57m.

What is the cheapest airline that flies from Portland to Denver Intl?

JetBlue, United Airlines, and American Airlines are the most popular carriers operating from Portland to Denver Intl

Which layover airport offers the lowest fares from Portland, Maine to Denver?

Flights via Charlotte (CLT) offer the lowest average round-trip price of $288.

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

As of June 2026, 6 flights take off from Portland, Maine and land in Denver each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

What airlines fly to Denver?

United Airlines, JetBlue and Southwest are the top three most popular airlines that fly to Denver from Portland, Maine according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Portland, Maine and Denver?

Washington, D.C. (IAD) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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

Prices for flights from Portland Airport to Denver Intl Airport refresh daily.

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

As of June 2026, there are 5 operators available to choose from for flights from Portland Airport to Denver Intl Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The required travel and health documents for your Denver Intl 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 Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$151 Cheap Flights from Portland, Maine to Denver in 2026

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Find the cheapest flights from Portland, Maine to Denver

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6:59 pm - 12:23 am

PWM

DEN

7h 24m

1 stop

2:10 pm - 11:14 pm

DEN

PWM

7h 04m

1 stop

$384Delta

Fri, Jul 24 - Fri, Jul 31

7:28 am - 3:29 pm

PWM

DEN

10h 01m

2 stops

3:13 pm - 11:37 pm

DEN

PWM

6h 24m

1 stop

$387American Airlines

Tue, Aug 18 - Mon, Aug 24

5:40 pm - 11:50 pm

PWM

DEN

8h 10m

1 stop

12:39 pm - 11:59 pm

DEN

PWM

9h 20m

2 stops

$388American Airlines

Thu, Jul 23 - Tue, Jul 28

1:28 pm - 9:32 pm

PWM

DEN

10h 04m

2 stops

2:34 pm - 12:43 am

DEN

PWM

8h 09m

1 stop

$389American Airlines

Tue, Jul 14 - Wed, Jul 22

5:09 pm - 9:27 am

PWM

DEN

18h 18m

2 stops

6:40 am - 11:24 pm

DEN

PWM

14h 44m

1 stop

$390Multiple Airlines

Wed, Sep 23 - Mon, Sep 28

10:30 am - 5:20 pm

PWM

DEN

8h 50m

2 stops

9:05 am - 9:00 pm

DEN

PWM

9h 55m

2 stops

$393Southwest

Wed, Sep 23 - Sat, Sep 26

5:30 am - 1:35 pm

PWM

DEN

10h 05m

2 stops

7:05 pm - 9:55 am

DEN

PWM

12h 50m

1 stop

$394Southwest

Wed, Jul 22 - Mon, Jul 27

3:45 pm - 9:11 pm

PWM

DEN

7h 26m

1 stop

9:53 am - 3:51 pm

DEN

PWM

3h 58mnonstop

$395United Airlines

Tue, Aug 18 - Mon, Aug 24

4:44 pm - 10:05 pm

PWM

DEN

31h 21m

2 stops

2:48 pm - 10:38 pm

DEN

PWM

29h 50m

1 stop

$398Multiple Airlines

Tue, Jul 21 - Thu, Jul 30

3:37 pm - 6:10 pm

PWM

DEN

4h 33mnonstop

11:59 pm - 9:08 am

DEN

PWM

7h 09m

1 stop

$401United Airlines

Wed, Aug 19 - Mon, Aug 24

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Delta flights from Portland, Maine to Denver

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

Delta

Jul 24

PWM6:59 pmPortland

7h 24m

1 stop

DEN12:23 amDenver Intl

Jul 31

DEN2:10 pmDenver Intl

7h 04m

1 stop

PWM11:14 pmPortland

$384

Delta

Jul 20

PWM6:59 pmPortland

7h 24m

1 stop

DEN12:23 amDenver Intl

Jul 27

DEN11:55 pmDenver Intl

23h 04m

1 stop

PWM12:59 amPortland

$402

Delta

Jul 20

PWM6:59 pmPortland

7h 24m

1 stop

DEN12:23 amDenver Intl

Jul 30

DEN11:55 pmDenver Intl

23h 04m

1 stop

PWM12:59 amPortland

$410

American Airlines flights from Portland, Maine to Denver

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

American Airlines

Aug 18

PWM7:28 amPortland

10h 01m

2 stops

DEN3:29 pmDenver Intl

Aug 24

DEN3:13 pmDenver Intl

6h 24m

1 stop

PWM11:37 pmPortland

$387

American Airlines

Jul 23

PWM5:40 pmPortland

8h 10m

1 stop

DEN11:50 pmDenver Intl

Jul 28

DEN12:39 pmDenver Intl

9h 20m

2 stops

PWM11:59 pmPortland

$388

American Airlines

Jul 14

PWM1:28 pmPortland

10h 04m

2 stops

DEN9:32 pmDenver Intl

Jul 22

DEN2:34 pmDenver Intl

8h 09m

1 stop

PWM12:43 amPortland

$389

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDenver

PWM - DEN

PWMDEN

Portland

Fri 7/24

6:59 pm-12:23 am

1 stop7h 24m

Denver Intl

Fri 7/31

2:10 pm-11:14 pm

1 stop7h 04m

$384

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 8/18

7:28 am-3:29 pm

2 stops10h 01m

Denver Intl

Mon 8/24

3:13 pm-11:37 pm

1 stop6h 24m

$387

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 7/23

5:40 pm-11:50 pm

1 stop8h 10m

Denver Intl

Tue 7/28

12:39 pm-11:59 pm

2 stops9h 20m

$388

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 7/14

1:28 pm-9:32 pm

2 stops10h 04m

Denver Intl

Wed 7/22

2:34 pm-12:43 am

1 stop8h 09m

$389

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 9/23

5:09 pm-9:27 am

2 stops18h 18m

Denver Intl

Mon 9/28

6:40 am-11:24 pm

1 stop14h 44m

$390

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 9/23

10:30 am-5:20 pm

2 stops8h 50m

Denver Intl

Sat 9/26

9:05 am-9:00 pm

2 stops9h 55m

$393

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 7/22

5:30 am-1:35 pm

2 stops10h 05m

Denver Intl

Mon 7/27

7:05 pm-9:55 am

1 stop12h 50m

$394

Quickest round-trip

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 8/18

3:45 pm-9:11 pm

1 stop7h 26m

Denver Intl

Mon 8/24

9:53 am-3:51 pm

Nonstop3h 58m

$395

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 7/21

4:44 pm-10:05 pm

2 stops31h 21m

Denver Intl

Thu 7/30

2:48 pm-10:38 pm

1 stop29h 50m

$398

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 8/19

3:37 pm-6:10 pm

Nonstop4h 33m

Denver Intl

Mon 8/24

11:59 pm-9:08 am

1 stop7h 09m

$401

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Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Layovers

Other information

What is the typical price of a round-trip flight between Portland, Maine and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Portland, Maine is in February. Flight prices, which tend to average around $380, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until November to fly from Portland, Maine, when ticket prices are also cheap, with an average price of $399.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $494. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $909.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $551. Flights in the morning are often more expensive with an average ticket price of $937.

What is the cheapest Portland to Denver Intl flight route?

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

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

You are more likely to see cheaper flights to Denver from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $456 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Portland, Maine for as low as $413 on momondo.

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

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

How have Portland, Maine to Denver flight prices changed over time?

As of June 2026, prices for Portland, Maine to Denver flights are approximately 39% more expensive when compared to flights at the same time last year.

When to book flights from Portland, Maine to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Denver (PWM to DEN) flight deals and tips

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

Best Price Found	$358
Fastest flight time	4h 33m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Portland, Maine in the past 72 hours is $358. The best round-trip flight deal from Portland, Maine to Denver found on momondo in the last 72 hours is $501.

The fastest flight from Portland, Maine to Denver takes 4h 33m

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

There is 1 airport in Denver. From Portland, Maine there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Portland, Maine to Denver

How far is Portland to Denver Intl by plane?
There are 1797.3 mi between Portland and Denver Intl. In terms of flight time, this usually takes a little over 4h 33m.
When did momondo last update prices for flights from Portland Airport to Denver Intl Airport?
Prices for flights from Portland Airport to Denver Intl Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Denver Intl Airport?
As of June 2026, there are 5 operators available to choose from for flights from Portland Airport to Denver Intl Airport.
How old do you have to be to fly from Portland Airport to Denver Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl 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 Denver Intl 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 Portland, Maine to Denver?
momondo data reveals that the most frequently booked plane model on the route from Portland, Maine to Denver is Boeing 737 MAX 8, representing 63.95% of all bookings. The subsequent popular models are Boeing 737-800 at 22.09%, Boeing 737 MAX 9 at 2.33%, and Airbus A320-100/200 at 2.33%.
What is the most popular airline from Portland, Maine to Denver?
Based on momondo bookings for flights between Portland, Maine and Denver, the leading airline is United Airlines, making up 58% of the total bookings. Other popular airlines include American Airlines with 23%, Southwest with 12%, and Delta with 5%.

Best airlines flying from Portland, Maine to Denver

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $242	Free Cancellation	Rating 7.1 3,012 reviews	Search JetBlue flights
American Airlines	PriceFrom $253	Free Cancellation	Rating 7.1 11,774 reviews	Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.8 8,455 reviews	Search Delta flights
United Airlines	PriceFrom $294	Free Cancellation	Rating 7.4 9,899 reviews	Search United Airlines flights
Southwest	PriceFrom $300	Free Cancellation	Rating 7.9 4,246 reviews	Search Southwest flights

United Airlines Flights From Portland, Maine to Denver
United Airlines operates around 6 flights from Portland, Maine to Denver every week. The average price of these flights found in the last 72 hours has been $494, but momondo users have found United Airlines deals from Portland, Maine to Denver from as low as $294 round-trip. United Airlines has been scored 7.4/10 in 9,899 reviews.

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Longmont

Boulder

Manitou Springs

Westminster

Lakewood

Greeley

Keystone

Thornton

Cripple Creek

Frisco

Englewood

Centennial

Winter Park

Littleton

Copper Mountain

Why use momondo?

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

It is quick and easy to find Portland to Denver 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 Denver that suits you.

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

All flight searches from Portland to Denver on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Portland to Denver 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 Portland to Denver right now. Can momondo alert me if prices change?

Price alerts on flights to Denver from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Airports servicing Colorado

Alamosa Airport

Aspen Pitkin County Airport

Cortez Montezuma County Airport

Colorado Springs Airport

Durango La Plata County Airport

Vail Eagle County Airport

Grand Junction Regnl Airport

Gunnison Airport

Hayden Yampa Valley Airport

Montrose County Airport

Telluride Airport

Cheap flights from Portland, Maine to Denver from $151

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Denver departing on 8/23. 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 Portland, Maine to Denver

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

What is the typical price of a round-trip flight between Portland, Maine and Denver?

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

What is the cheapest time of day to depart on your flight to Denver?

What is the cheapest Portland to Denver Intl flight route?

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

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

How have Portland, Maine to Denver flight prices changed over time?

What is the cheapest airline that flies from Portland to Denver Intl?

What airlines fly to Denver?

Which airport is the most popular layover for flights between Portland, Maine and Denver?

Which layover airport offers the lowest fares from Portland, Maine to Denver?

Which layover airport has the shortest travel time from Portland, Maine to Denver?

Which layover airport has the shortest connection time from Portland, Maine to Denver?

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

When to book flights from Portland, Maine to Denver

Cheap Portland, Maine to Denver (PWM to DEN) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

Frequently asked questions about flying from Portland, Maine to Denver

Best airlines flying from Portland, Maine to Denver

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

United Airlines Flights From Portland, Maine to Denver

Traveling to a place near Denver?

Why use momondo?

An easier way to manage your Denver 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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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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