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

Washington, D.C. (IAD) was the most common stop: 32% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Portland, Maine?

United Airlines, JetBlue and Delta 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 43% 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.

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

As of July 2025, there are 1 flights per day flying from Denver to Portland, Maine. The most common time of day flights depart is 9:00AM, with 88% of flights taking off at noon.

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

Frontier, JetBlue, and Sun Country Air are the most popular carriers operating from Denver Intl to Portland

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

As of July 2025, there are 7 flights per week flying from Denver to Portland, Maine. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

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

Chicago (MDW) has the shortest average layover time for this route: 0h 45m.

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

Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 5h 25m.

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

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $216.

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 6 operators available for flights from Denver Intl Airport to Portland Airport as of July 2025.

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.

$129 Cheap Flights from Denver to Portland in 2025

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Find the cheapest flights from Denver to Portland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:00 am - 6:13 pmDEN-PWM

10h 13m1 stop

1:41 pm - 11:11 pmPWM-DEN

11h 30m1 stop

$258Frontier

Find Deal

Sat, Aug 16 - Sat, Aug 23

12:23 am - 6:13 pmDEN-PWM

15h 50m1 stop

1:41 pm - 8:02 amPWM-DEN

20h 21m1 stop

$265Frontier

Find Deal

Fri, Aug 15 - Sat, Aug 23

10:01 am - 3:56 pmDEN-PWM

3h 55mnonstop

5:02 pm - 9:59 pmPWM-DEN

6h 57m1 stop

$279United Airlines

Find Deal

Tue, Aug 26 - Sat, Aug 30

7:09 am - 4:17 pmDEN-PWM

7h 08m1 stop

6:00 am - 10:36 amPWM-DEN

6h 36m1 stop

$289American Airlines

Find Deal

Sat, Sep 20 - Wed, Sep 24

5:44 am - 5:39 pmDEN-PWM

9h 55m2 stops

1:57 pm - 10:02 pmPWM-DEN

10h 05m1 stop

$293American Airlines

Find Deal

Fri, Sep 5 - Fri, Sep 12

10:01 am - 3:56 pmDEN-PWM

3h 55mnonstop

7:26 pm - 11:59 pmPWM-DEN

6h 33m1 stop

$304United Airlines

Find Deal

Tue, Aug 19 - Wed, Aug 27

11:40 pm - 9:50 amDEN-PWM

8h 10m1 stop

9:05 am - 4:05 pmPWM-DEN

9h 00m2 stops

$312Southwest

Find Deal

Mon, Aug 25 - Wed, Aug 27

11:40 pm - 10:15 amDEN-PWM

8h 35m1 stop

3:30 pm - 8:35 pmPWM-DEN

7h 05m1 stop

$313Southwest

Find Deal

Fri, Sep 19 - Mon, Sep 22

2:00 pm - 12:03 amDEN-PWM

8h 03m1 stop

6:31 am - 6:08 pmPWM-DEN

13h 37m1 stop

$336Delta

Find Deal

Fri, Aug 15 - Sat, Aug 23

12:10 pm - 10:00 pmDEN-PWM

7h 50m1 stop

2:38 pm - 9:41 pmPWM-DEN

9h 03m1 stop

$344Delta

Find Deal

Sat, Oct 4 - Mon, Oct 6

Southwest flights from Denver to Portland, Maine

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

Southwest

Aug 25

DEN11:40 pmDenver Intl

8h 10m

1 stop

PWM9:50 amPortland

Aug 27

PWM9:05 amPortland

9h 00m

2 stops

DEN4:05 pmDenver Intl

$312

Find similar

Southwest

Sep 19

DEN11:40 pmDenver Intl

8h 35m

1 stop

PWM10:15 amPortland

Sep 22

PWM3:30 pmPortland

7h 05m

1 stop

DEN8:35 pmDenver Intl

$313

Find similar

Southwest

Aug 19

DEN5:50 amDenver Intl

7h 05m

1 stop

PWM2:55 pmPortland

Aug 22

PWM3:30 pmPortland

7h 05m

1 stop

DEN8:35 pmDenver Intl

$314

Find similar

Frontier flights from Denver to Portland, Maine

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

Frontier

Aug 16

DEN6:00 amDenver Intl

10h 13m

1 stop

PWM6:13 pmPortland

Aug 23

PWM1:41 pmPortland

11h 30m

1 stop

DEN11:11 pmDenver Intl

$258

Find similar

Frontier

Aug 15

DEN12:23 amDenver Intl

15h 50m

1 stop

PWM6:13 pmPortland

Aug 23

PWM1:41 pmPortland

20h 21m

1 stop

DEN8:02 amDenver Intl

$265

Find similar

Frontier

Aug 15

DEN12:23 amDenver Intl

15h 50m

1 stop

PWM6:13 pmPortland

Aug 23

PWM1:41 pmPortland

11h 30m

1 stop

DEN11:11 pmDenver Intl

$268

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 8/16

6:00 am-6:13 pm

1 stop10h 13m

Portland

Sat 8/23

1:41 pm-11:11 pm

1 stop11h 30m

$258

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 8/15

12:23 am-6:13 pm

1 stop15h 50m

Portland

Sat 8/23

1:41 pm-8:02 am

1 stop20h 21m

$265

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 8/26

10:01 am-3:56 pm

Nonstop3h 55m

Portland

Sat 8/30

5:02 pm-9:59 pm

1 stop6h 57m

$279

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 9/20

7:09 am-4:17 pm

1 stop7h 08m

Portland

Wed 9/24

6:00 am-10:36 am

1 stop6h 36m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 9/5

5:44 am-5:39 pm

2 stops9h 55m

Portland

Fri 9/12

1:57 pm-10:02 pm

1 stop10h 05m

$293

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 8/19

10:01 am-3:56 pm

Nonstop3h 55m

Portland

Wed 8/27

7:26 pm-11:59 pm

1 stop6h 33m

$304

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Mon 8/25

11:40 pm-9:50 am

1 stop8h 10m

Portland

Wed 8/27

9:05 am-4:05 pm

2 stops9h 00m

$312

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 9/19

11:40 pm-10:15 am

1 stop8h 35m

Portland

Mon 9/22

3:30 pm-8:35 pm

1 stop7h 05m

$313

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 8/15

2:00 pm-12:03 am

1 stop8h 03m

Portland

Sat 8/23

6:31 am-6:08 pm

1 stop13h 37m

$336

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 10/4

12:10 pm-10:00 pm

1 stop7h 50m

Portland

Mon 10/6

2:38 pm-9:41 pm

1 stop9h 03m

$344

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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 cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Denver is in November. Flight prices, which tend to average around $378, 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 November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $388.

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 $602. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday 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 $711.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from Denver to Portland, Maine when you can find flight prices for as low as $368. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $660. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 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 $451 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 $379 on momondo.

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

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

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

As of July 2025, prices for Denver to Portland, Maine flights are approximately 61% 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	$129
Fastest flight time	3h 55m
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 $129. The best round-trip flight deal from Denver to Portland, Maine found on momondo in the last 72 hours is $258.

The fastest flight from Denver to Portland, Maine takes 3h 55m

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

There is 1 airport near Portland, Maine: Portland (PWM)

Search flight deals

How far is Denver Intl to Portland by plane?
Portland is 1797.3 mi away from Denver Intl. 3h 55m 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 6 operators available for flights from Denver Intl Airport to Portland Airport as of July 2025.
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 737-900, representing 51.38% of all bookings. The subsequent popular models are Airbus A319 at 18.23%, Boeing 737 MAX 9 at 11.05%, and Boeing 737-800 at 4.97%.
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 (50% of total bookings). The next most popular airlines are American Airlines (21%), Southwest (15%), and Delta (10%).

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
Frontier	PriceFrom $158	Free Cancellation	Rating 5.9 3,239 reviews	Search Frontier flights
American Airlines	PriceFrom $212	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $236	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
JetBlue	PriceFrom $249	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Southwest	PriceFrom $279	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $312	Free Cancellation	Rating 7.4 8,900 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 7 flights/week on average for this route. A good United Airlines flight deal for Denver to Portland, Maine starts from $312 round-trip, up to an average price of $586. Our users have rated United Airlines at 7.4/10.

North Conway

Boothbay Harbor

Jackson

Conway

Freeport

Bartlett

Lewiston

Gorham

Brunswick

Auburn

Intervale

Windham

Falmouth

Bath

Georgetown

Oxford

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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Cheap flights from Denver to Portland from $129

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 8/29. 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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Filter for what you want

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Find the cheapest flights from Denver to Portland

Cheap round-trip flights

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Southwest flights from Denver to Portland, Maine

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

Frontier flights from Denver to Portland, Maine

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

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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

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 time of day to depart on your flight to Portland, Maine?

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 to Portland, Maine?

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

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

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

As of July 2025, prices for Denver to Portland, Maine flights are approximately 61% more expensive when compared to flights at the same time last year.

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

Frontier, JetBlue, and Sun Country Air are the most popular carriers operating 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?

Washington, D.C. (IAD) was the most common stop: 32% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $216.

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

Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 5h 25m.

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

Chicago (MDW) has the shortest average layover time for this route: 0h 45m.

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

As of July 2025, there are 1 flights per day flying from Denver to Portland, Maine. The most common time of day flights depart is 9:00AM, with 88% of flights taking off at noon.

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

As of July 2025, there are 7 flights per week flying from Denver to Portland, Maine. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

When to book flights from Denver to Portland, Maine

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

Fastest flight time

Direct flights

Airports in Portland, Maine

How far is Denver Intl to Portland by plane?

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

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

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

What documentation or ID do you need to fly to Portland Airport?

What is the most popular plane model from Denver to Portland, Maine?

What is the most popular airline 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

United Airlines Flights From Denver to Portland, Maine

Traveling to a place near Portland?

Why use momondo?

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

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

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

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

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