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

American Airlines and Southwest are the most popular carriers operating from Denver Intl 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 Denver according to our data. United Airlines is the first choice among our users, with 50% 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.

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

Flights via New York (JFK) offer the lowest average round-trip price of $338.

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

Baltimore (BWI) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

Philadelphia (PHL) has the shortest average layover time for this route: 0h 40m.

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

Flights connecting via Baltimore (BWI) have the shortest average one-way travel time: 5h 50m.

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

As of November 2026, there are 5 flights per week flying from Denver to Portland, Maine. The most common day of the week flights depart is Mon, with 20% of flights taking off on this day.

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

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

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

There are 5 operators available for flights from Denver Intl Airport to Portland Airport as of November 2026.

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

$136 Cheap Flights from Denver to Portland, Maine in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Portland

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 pm - 5:51 pmDEN Denver Intl-PWM Portland

42h 36m2 stops Dallas/Fort Worth Tampa

12:28 pm - 7:00 pmPWM Portland-DEN Denver Intl

8h 32m1 stop Raleigh-Durham

$272Multiple Airlines

Mon, Jan 25 - Wed, Feb 3

9:15 pm - 5:51 pmDEN Denver Intl-PWM Portland

42h 36m2 stops Dallas/Fort Worth Tampa

12:28 pm - 7:00 pmPWM Portland-DEN Denver Intl

8h 32m1 stop Raleigh-Durham

$272Multiple Airlines

Mon, Jan 25 - Wed, Feb 3

11:17 am - 9:03 pmDEN Denver Intl-PWM Portland

7h 46m1 stop Newark

7:10 am - 2:14 pmPWM Portland-DEN Denver Intl

9h 04m1 stop Newark

$377United Airlines

Wed, Jan 6 - Tue, Jan 12

11:17 am - 9:03 pmDEN Denver Intl-PWM Portland

7h 46m1 stop Newark

7:10 am - 12:25 pmPWM Portland-DEN Denver Intl

7h 15m1 stop Newark

$377United Airlines

Tue, Jan 5 - Tue, Jan 12

11:32 am - 9:29 pmDEN Denver Intl-PWM Portland

7h 57m1 stop Charlotte Douglas

7:00 am - 2:50 pmPWM Portland-DEN Denver Intl

9h 50m1 stop Charlotte Douglas

$377American Airlines

Fri, Jan 8 - Mon, Jan 11

7:20 am - 2:50 pmDEN Denver Intl-PWM Portland

5h 30m1 stop Baltimore/Washington

5:30 am - 11:35 amPWM Portland-DEN Denver Intl

8h 05m1 stop Baltimore/Washington

$377Southwest

Wed, Jan 13 - Tue, Jan 19

7:00 am - 2:45 pmDEN Denver Intl-PWM Portland

5h 45m1 stop Baltimore/Washington

3:25 pm - 9:50 pmPWM Portland-DEN Denver Intl

8h 25m1 stop Baltimore/Washington

$377Southwest

Wed, Dec 2 - Thu, Dec 3

3:04 pm - 11:19 pmDEN Denver Intl-PWM Portland

6h 15m1 stop Philadelphia

12:34 pm - 10:56 pmPWM Portland-DEN Denver Intl

12h 22m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$382American Airlines

Wed, Dec 9 - Sat, Dec 12

6:45 am - 4:13 pmDEN Denver Intl-PWM Portland

7h 28m1 stop Detroit Metropolitan Wayne County

6:00 am - 12:49 pmPWM Portland-DEN Denver Intl

8h 49m1 stop Atlanta Hartsfield-Jackson

$429Delta

Sat, May 1 - Mon, May 31

12:59 pm - 11:09 pmDEN Denver Intl-PWM Portland

8h 10m1 stop Atlanta Hartsfield-Jackson

2:09 pm - 9:01 pmPWM Portland-DEN Denver Intl

8h 52m1 stop New York John F Kennedy Intl

$429Delta

Sun, Dec 20 - Thu, Dec 31

Cheap last minute flights

Enter your travel dates to find the best prices.

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

6h 00m1 stop Philadelphia

7:00 am - 2:50 pmPWM Portland-DEN Denver Intl

9h 50m1 stop Charlotte Douglas

$498American Airlines

Wed, Nov 11 - Mon, Jan 11

7:33 am - 9:36 pmDEN Denver Intl-PWM Portland

12h 03m2 stops Dallas/Fort Worth Charlotte Douglas

7:00 am - 2:50 pmPWM Portland-DEN Denver Intl

9h 50m1 stop Charlotte Douglas

$503American Airlines

Wed, Nov 11 - Mon, Jan 11

9:07 am - 10:57 pmDEN Denver Intl-PWM Portland

11h 50m2 stops Dallas/Fort Worth Philadelphia

7:00 am - 2:50 pmPWM Portland-DEN Denver Intl

9h 50m1 stop Charlotte Douglas

$503American Airlines

Wed, Nov 11 - Mon, Jan 11

10:36 am - 11:31 pmDEN Denver Intl-PWM Portland

10h 55m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

6:17 am - 4:54 pmPWM Portland-DEN Denver Intl

12h 37m2 stops New York LaGuardia Atlanta Hartsfield-Jackson

$524Delta

Wed, Nov 11 - Mon, Jan 11

10:36 am - 11:31 pmDEN Denver Intl-PWM Portland

10h 55m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

6:17 am - 4:54 pmPWM Portland-DEN Denver Intl

12h 37m2 stops New York LaGuardia Atlanta Hartsfield-Jackson

$534Delta

Wed, Nov 11 - Mon, Jan 11

7:05 am - 3:16 pmDEN Denver Intl-PWM Portland

6h 11m1 stop New York John F Kennedy Intl

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

7h 13m1 stop New York John F Kennedy Intl

$559Delta

Sat, Nov 14 - Mon, Nov 23

10:11 am - 4:02 pmDEN Denver Intl-PWM Portland

3h 51mnonstop

3:23 pm - 6:14 pmPWM Portland-DEN Denver Intl

4h 51mnonstop

$599United Airlines

Sat, Nov 14 - Tue, Nov 17

10:11 am - 4:02 pmDEN Denver Intl-PWM Portland

3h 51mnonstop

7:30 am - 2:14 pmPWM Portland-DEN Denver Intl

8h 44m1 stop Newark

$603United Airlines

Wed, Nov 11 - Mon, Jan 11

10:11 am - 4:02 pmDEN Denver Intl-PWM Portland

3h 51mnonstop

8:47 am - 3:17 pmPWM Portland-DEN Denver Intl

8h 30m1 stop Chicago O'Hare Intl

$605United Airlines

Sat, Nov 14 - Tue, Nov 17

7:40 am - 4:30 pmDEN Denver Intl-PWM Portland

6h 50m1 stop Baltimore/Washington

3:25 pm - 10:40 pmPWM Portland-DEN Denver Intl

9h 15m2 stops Baltimore/Washington Nashville Intl

$689Southwest

Fri, Nov 13 - Mon, Nov 16

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Southwest flights from Denver to Portland, Maine

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

Southwest

Dec 10

DEN7:00 amDenver Intl

5h 45m

1 stop

PWM2:45 pmPortland

Dec 15

PWM12:45 pmPortland

6h 50m

1 stop

DEN5:35 pmDenver Intl

$377

Southwest

Jan 13

DEN11:10 amDenver Intl

8h 40m

2 stops

PWM9:50 pmPortland

Jan 19

PWM5:30 amPortland

10h 55m

2 stops

DEN2:25 pmDenver Intl

$387

Southwest

Jan 5

DEN10:55 amDenver Intl

8h 55m

2 stops

PWM9:50 pmPortland

Jan 12

PWM12:55 pmPortland

10h 40m

2 stops

DEN9:35 pmDenver Intl

$402

United Airlines flights from Denver to Portland, Maine

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

United Airlines

Nov 25

DEN10:11 amDenver Intl

3h 51m

PWM4:02 pmPortland

Dec 8

PWM7:00 amPortland

7h 07m

1 stop

DEN12:07 pmDenver Intl

$388

United Airlines

Nov 19

DEN10:11 amDenver Intl

3h 51m

PWM4:02 pmPortland

Nov 24

PWM3:23 pmPortland

4h 51m

DEN6:14 pmDenver Intl

$479

United Airlines

Nov 19

DEN10:11 amDenver Intl

3h 51m

PWM4:02 pmPortland

Nov 24

PWM5:08 pmPortland

8h 23m

1 stop

DEN11:31 pmDenver Intl

$489

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Mon 1/25

9:15 pm-5:51 pm

2 stops42h 36m

Portland

Wed 2/3

12:28 pm-7:00 pm

1 stop8h 32m

$272

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Mon 1/25

9:15 pm-5:51 pm

2 stops42h 36m

Portland

Wed 2/3

12:28 pm-7:00 pm

1 stop8h 32m

$272

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 1/6

11:17 am-9:03 pm

1 stop7h 46m

Portland

Tue 1/12

7:10 am-2:14 pm

1 stop9h 04m

$377

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 1/5

11:17 am-9:03 pm

1 stop7h 46m

Portland

Tue 1/12

7:10 am-12:25 pm

1 stop7h 15m

$377

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Fri 1/8

11:32 am-9:29 pm

1 stop7h 57m

Portland

Mon 1/11

7:00 am-2:50 pm

1 stop9h 50m

$377

Quickest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 1/13

7:20 am-2:50 pm

1 stop5h 30m

Portland

Tue 1/19

5:30 am-11:35 am

1 stop8h 05m

$377

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 12/2

7:00 am-2:45 pm

1 stop5h 45m

Portland

Thu 12/3

3:25 pm-9:50 pm

1 stop8h 25m

$377

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 12/9

3:04 pm-11:19 pm

1 stop6h 15m

Portland

Sat 12/12

12:34 pm-10:56 pm

2 stops12h 22m

$382

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sat 5/1

6:45 am-4:13 pm

1 stop7h 28m

Portland

Mon 5/31

6:00 am-12:49 pm

1 stop8h 49m

$429

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sun 12/20

12:59 pm-11:09 pm

1 stop8h 10m

Portland

Thu 12/31

2:09 pm-9:01 pm

1 stop8h 52m

$429

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 Denver 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

Layovers

Other information

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

Prices are currently low for flights on this route.

Typical prices usually range from $414 to $751.
The lowest price recently found on this route was $272.

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

The cheapest month to fly to Portland, Maine from Denver is in January. Flight prices, which tend to average around $368, 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 $394.

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 Denver is on a Saturday. momondo users have found tickets for Saturday departures for as low as $560. 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 Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $684.

What is the cheapest Denver Intl to Portland flight route?

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

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

You are more likely to see cheaper flights to Portland, Maine from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $501 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Denver for as low as $360 on momondo.

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

There are 4 cabin classes available to choose from on Denver 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 Denver to Portland, Maine flights?

You could potentially save up to 16% on your flight if you consider stops on a Denver to Portland, Maine flight.

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

As of November 2026, prices for Denver to Portland, Maine flights are approximately 131% more expensive when compared to flights at the same time last year.

When to book flights from Denver to Portland, Maine

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

Estimated round-trip price

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

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

Best Price Found	$136
Fastest flight time	3h 51m
Direct flights	Every day
Airports in Portland, Maine	1 airport

The best one-way flight to Portland, Maine from Denver in the past 72 hours is $136. The best round-trip flight deal from Denver to Portland, Maine found on momondo in the last 72 hours is $272.

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

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

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

Search flight deals

Frequently asked questions about flying from Denver to Portland, Maine

How far is Denver Intl to Portland by plane?
Portland is 1797.3 mi away from Denver Intl. 3h 51m is a normal flight duration for this route.
When did momondo last update prices for flights from Denver Intl Airport to Portland Airport?
Prices for flights from Denver Intl Airport to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Portland Airport?
There are 5 operators available for flights from Denver Intl Airport to Portland Airport as of November 2026.
How old do you have to be to fly from Denver Intl Airport 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 Denver Intl Airport 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 Denver to Portland, Maine?
momondo data reveals that the most frequently booked plane model on the route from Denver to Portland, Maine is Boeing 737 MAX 9, representing 74.11% of all bookings. The subsequent popular models are Boeing 737 at 10.71%, Boeing 737-800 at 3.57%, and Airbus A220-300 at 2.68%.
What is the most popular airline from Denver to Portland, Maine?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Denver to Portland, Maine is United Airlines (59% of total bookings). The next most popular airlines are American Airlines (17%), Southwest (15%), and Delta (5%).

Best airlines flying from Denver to Portland, Maine

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $266	Free Cancellation	Rating 7.1 3,064 reviews	Search JetBlue flights
Delta	PriceFrom $276	Free Cancellation	Rating 7.8 8,699 reviews	Search Delta flights
American Airlines	PriceFrom $318	Free Cancellation	Rating 7.0 12,227 reviews	Search American Airlines flights
Southwest	PriceFrom $348	Free Cancellation	Rating 8.0 4,219 reviews	Search Southwest flights
United Airlines	PriceFrom $362	Free Cancellation	Rating 7.3 10,471 reviews	Search United Airlines flights

United Airlines Flights From Denver to Portland, Maine
United Airlines is one of the most popular airlines flying from Denver to Portland, Maine, operating 5 flights/week on average for this route. A good United Airlines flight deal for Denver to Portland, Maine starts from $362 round-trip, up to an average price of $595. Our users have rated United Airlines at 7.3/10.

North Conway

Jackson

Boothbay Harbor

Brunswick

Lewiston

Freeport

Conway

Gorham

Auburn

Bartlett

Bath

Windham

Intervale

Georgetown

Oxford

Falmouth

Tamworth

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Portland for you.

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

Yes. momondo allows you to filter the results for Denver to Portland flights to just show those with flexible booking policies.

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

Once you have performed a search for Denver to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Denver and alert you when they change.

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

Rockland Knox County Regional Airport

Cheap flights from Denver to Portland from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Portland departing on 1/12. 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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Southwest flights from Denver to Portland, Maine

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

United Airlines flights from Denver to Portland, Maine

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

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

What is the typical price of a round-trip flight between Denver and 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 Denver Intl to Portland flight route?

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

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

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

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

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

What airlines fly to Portland, Maine?

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

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

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

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

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

When to book flights from Denver to Portland, Maine

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

Best Price Found

Fastest flight time

Direct flights

Airports in Portland, Maine

Frequently asked questions about flying from Denver to Portland, Maine

Best airlines flying from Denver to Portland, Maine

Compare and see reviews for airlines that fly from Denver 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 Denver

According to popular flight searches on momondo this year

Complete your trip to Portland

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