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 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 55m.

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

As of September 2026, there are 3 flights per week flying from Denver to Portland, Maine. The most common day of the week flights depart is Mon, with 33% of flights taking off on this day.

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.

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

Southwest and United Airlines are the most popular carriers operating from Denver Intl to Portland

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

Baltimore (BWI) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

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.

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 September 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.

$164 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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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

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

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

3h 51mnonstop

5:08 pm - 10:44 pmPWM Portland-DEN Denver Intl

7h 36m1 stop Chicago O'Hare Intl

$389United Airlines

Sat, Nov 14 - Mon, Nov 16

1:35 pm - 11:28 pmDEN Denver Intl-PWM Portland

7h 53m1 stop Newark

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

4h 51mnonstop

$389United Airlines

Sat, Oct 17 - Wed, Oct 28

7:02 pm - 9:08 amDEN Denver Intl-PWM Portland

12h 06m1 stop Orlando

5:35 pm - 8:24 amPWM Portland-DEN Denver Intl

16h 49m2 stops Charleston Tampa

$390Multiple Airlines

Tue, Oct 27 - Mon, Nov 2

7:02 pm - 9:08 amDEN Denver Intl-PWM Portland

12h 06m1 stop Orlando

5:09 pm - 8:13 amPWM Portland-DEN Denver Intl

17h 04m2 stops Raleigh-Durham Orlando

$391Multiple Airlines

Tue, Oct 27 - Wed, Oct 28

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

6:30 am - 4:09 pmDEN Denver Intl-PWM Portland

7h 39m1 stop Philadelphia

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

10h 09m1 stop Philadelphia

$399American Airlines

Thu, Oct 29 - Sun, Nov 1

6:35 am - 3:35 pmDEN Denver Intl-PWM Portland

7h 00m1 stop New York John F Kennedy Intl

6:03 am - 11:04 amPWM Portland-DEN Denver Intl

7h 01m1 stop New York John F Kennedy Intl

$399Delta

Wed, Oct 21 - Sun, Nov 1

6:35 am - 3:35 pmDEN Denver Intl-PWM Portland

7h 00m1 stop New York John F Kennedy Intl

2:33 pm - 8:13 pmPWM Portland-DEN Denver Intl

7h 40m1 stop New York John F Kennedy Intl

$399Delta

Wed, Oct 21 - Sat, Oct 31

Cheap last minute flights

Enter your travel dates to find the best prices.

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

10:04 am - 4:02 pmDEN Denver Intl-PWM Portland

3h 58mnonstop

6:00 am - 12:45 pmPWM Portland-DEN Denver Intl

8h 45m1 stop Chicago O'Hare Intl

$519United Airlines

Tue, Sep 29 - Sat, Oct 3

10:04 am - 4:02 pmDEN Denver Intl-PWM Portland

3h 58mnonstop

6:00 am - 12:45 pmPWM Portland-DEN Denver Intl

8h 45m1 stop Chicago O'Hare Intl

$519United Airlines

Tue, Sep 29 - Wed, Oct 7

12:29 pm - 11:47 pmDEN Denver Intl-PWM Portland

9h 18m1 stop Chicago O'Hare Intl

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

8h 51m1 stop Chicago O'Hare Intl

$520American Airlines

Fri, Sep 25 - Tue, Oct 27

10:31 am - 9:56 pmDEN Denver Intl-PWM Portland

9h 25m1 stop Philadelphia

12:09 pm - 8:22 pmPWM Portland-DEN Denver Intl

10h 13m1 stop Charlotte Douglas

$529American Airlines

Tue, Sep 29 - Wed, Oct 7

6:30 am - 3:55 pmDEN Denver Intl-PWM Portland

7h 25m1 stop Detroit Metropolitan Wayne County

4:45 pm - 11:35 pmPWM Portland-DEN Denver Intl

8h 50m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$534Delta

Tue, Sep 29 - Mon, Oct 5

12:50 am - 3:39 pmDEN Denver Intl-PWM Portland

12h 49m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

4:45 pm - 11:35 pmPWM Portland-DEN Denver Intl

8h 50m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$540Delta

Mon, Sep 28 - Mon, Oct 5

11:15 am - 10:10 pmDEN Denver Intl-PWM Portland

8h 55m2 stops Memphis Chicago Midway

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

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

$604Southwest

Tue, Sep 29 - Wed, Oct 7

1:10 pm - 10:30 pmDEN Denver Intl-PWM Portland

7h 20m1 stop Baltimore/Washington

5:20 am - 12:55 pmPWM Portland-DEN Denver Intl

9h 35m1 stop Baltimore/Washington

$654Southwest

Mon, Sep 28 - Fri, Oct 2

6:40 am - 9:19 pmDEN Denver Intl-PWM Portland

36h 39m2 stops Orlando Columbus

7:00 am - 5:47 pmPWM Portland-DEN Denver Intl

12h 47m1 stop Columbus

$675Multiple Airlines

Tue, Sep 29 - Wed, Oct 7

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Delta flights from Denver to Portland, Maine

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

Delta

Oct 21

DEN6:35 amDenver Intl

7h 00m

1 stop

PWM3:35 pmPortland

Oct 29

PWM2:09 pmPortland

8h 02m

1 stop

DEN8:11 pmDenver Intl

$399

Delta

Nov 6

DEN10:41 amDenver Intl

10h 37m

2 stops

PWM11:18 pmPortland

Nov 8

PWM6:03 amPortland

7h 01m

1 stop

DEN11:04 amDenver Intl

$404

Delta

Oct 23

DEN12:59 pmDenver Intl

8h 19m

2 stops

PWM11:18 pmPortland

Oct 27

PWM1:52 pmPortland

9h 35m

2 stops

DEN9:27 pmDenver Intl

$409

American Airlines flights from Denver to Portland, Maine

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

American Airlines

Oct 14

DEN2:54 pmDenver Intl

6h 42m

1 stop

PWM11:36 pmPortland

Oct 20

PWM5:30 amPortland

7h 52m

1 stop

DEN11:22 amDenver Intl

$433

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

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

Quickest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sat 11/14

10:11 am-4:02 pm

Nonstop3h 51m

Portland

Mon 11/16

5:08 pm-10:44 pm

1 stop7h 36m

$389

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sat 10/17

1:35 pm-11:28 pm

1 stop7h 53m

Portland

Wed 10/28

3:23 pm-6:14 pm

Nonstop4h 51m

$389

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 10/27

7:02 pm-9:08 am

1 stop12h 06m

Portland

Mon 11/2

5:35 pm-8:24 am

2 stops16h 49m

$390

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 10/27

7:02 pm-9:08 am

1 stop12h 06m

Portland

Wed 10/28

5:09 pm-8:13 am

2 stops17h 04m

$391

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

Thu 10/29

6:30 am-4:09 pm

1 stop7h 39m

Portland

Sun 11/1

6:00 am-2:09 pm

1 stop10h 09m

$399

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 10/21

6:35 am-3:35 pm

1 stop7h 00m

Portland

Sun 11/1

6:03 am-11:04 am

1 stop7h 01m

$399

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 10/21

6:35 am-3:35 pm

1 stop7h 00m

Portland

Sat 10/31

2:33 pm-8:13 pm

1 stop7h 40m

$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 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 typical for flights on this route.

Typical prices usually range from $383 to $616.
The lowest price recently found on this route was $388.

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 $363, 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 November is also cheap. Prices for this month can be found on momondo for an average of $387.

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 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 Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $717.

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 $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 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 13% 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 September 2026, prices for Denver to Portland, Maine flights are approximately 13% cheaper 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	$164
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 $164. The best round-trip flight deal from Denver to Portland, Maine found on momondo in the last 72 hours is $388.

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 September 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 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%.
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 (60% of total bookings). The next most popular airlines are American Airlines (16%), 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 3,040 reviews	Search JetBlue flights
Delta	PriceFrom $267	Free Cancellation	Rating 7.8 8,593 reviews	Search Delta flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 10,233 reviews	Search United Airlines flights
American Airlines	PriceFrom $318	Free Cancellation	Rating 7.0 12,073 reviews	Search American Airlines flights
Southwest	PriceFrom $348	Free Cancellation	Rating 8.0 4,199 reviews	Search Southwest 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 3 flights/week on average for this route. A good United Airlines flight deal for Denver to Portland, Maine starts from $290 round-trip, up to an average price of $564. Our users have rated United Airlines at 7.4/10.

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 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 $164

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 11/7. 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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Delta flights from Denver to Portland, Maine

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

American Airlines flights from Denver to Portland, Maine

Our best American 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

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