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

Flights via Atlanta (ATL) offer the lowest average round-trip price of $287.

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.

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 45% 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 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.

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

United Airlines and Southwest 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?

Charlotte (CLT) was the most common stop: 30% of momondo users choosing 1-stop flights on this route connected there.

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 March 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.

$133 Cheap Flights from Denver to Portland in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Denver to Portland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:03 am - 4:16 pm

DEN

PWM

8h 13m

1 stop

5:01 pm - 2:32 pm

PWM

DEN

23h 31m

1 stop

$270Multiple Airlines

mié., may. 6 - mié., may. 13

11:59 pm - 9:11 am

DEN

PWM

7h 12m

1 stop

4:51 pm - 9:59 pm

PWM

DEN

7h 08m

1 stop

$277United Airlines

mié., may. 27 - mar., jun. 2

8:40 am - 6:38 pm

DEN

PWM

7h 58m

1 stop

11:57 am - 6:26 pm

PWM

DEN

8h 29m

1 stop

$283American Airlines

mar., abr. 28 - sáb., may. 2

3:04 pm - 11:57 pm

DEN

PWM

6h 53m

1 stop

6:00 am - 1:24 pm

PWM

DEN

9h 24m

1 stop

$285JetBlue

mié., ago. 26 - mié., sep. 2

8:40 am - 6:38 pm

DEN

PWM

7h 58m

1 stop

3:40 pm - 11:45 pm

PWM

DEN

10h 05m

2 stops

$288American Airlines

mar., abr. 28 - sáb., may. 2

11:54 pm - 4:16 pm

DEN

PWM

14h 22m

2 stops

5:01 pm - 2:32 pm

PWM

DEN

23h 31m

1 stop

$290Multiple Airlines

mar., may. 5 - mié., may. 13

2:21 pm - 12:35 am

DEN

PWM

8h 14m

1 stop

5:57 pm - 10:56 pm

PWM

DEN

6h 59m

1 stop

$297American Airlines

mié., jun. 3 - mié., jun. 10

6:03 am - 4:16 pm

DEN

PWM

8h 13m

1 stop

3:16 pm - 2:32 pm

PWM

DEN

25h 16m

2 stops

$304Multiple Airlines

mié., may. 6 - mar., may. 12

11:46 am - 10:46 pm

DEN

PWM

9h 00m

1 stop

6:01 pm - 10:45 pm

PWM

DEN

6h 44m

1 stop

$309American Airlines

lun., abr. 20 - jue., abr. 23

3:50 pm - 11:51 pm

DEN

PWM

6h 01m

1 stop

4:51 pm - 9:59 pm

PWM

DEN

7h 08m

1 stop

$313United Airlines

vie., may. 29 - mar., jun. 2

United Airlines flights from Denver to Portland, Maine

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

United Airlines

May 27

DEN11:59 pmDenver Intl

7h 12m

1 stop

PWM9:11 amPortland

Jun 2

PWM4:51 pmPortland

7h 08m

1 stop

DEN9:59 pmDenver Intl

$277

United Airlines

May 4

DEN11:59 pmDenver Intl

6h 50m

1 stop

PWM8:49 amPortland

May 12

PWM6:00 amPortland

8h 45m

1 stop

DEN12:45 pmDenver Intl

$283

United Airlines

May 29

DEN3:50 pmDenver Intl

6h 01m

1 stop

PWM11:51 pmPortland

Jun 2

PWM4:51 pmPortland

7h 08m

1 stop

DEN9:59 pmDenver Intl

$313

American Airlines flights from Denver to Portland, Maine

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

American Airlines

Jun 3

DEN2:21 pmDenver Intl

8h 14m

1 stop

PWM12:35 amPortland

Jun 10

PWM5:57 pmPortland

6h 59m

1 stop

DEN10:56 pmDenver Intl

$297

American Airlines

Apr 20

DEN11:46 amDenver Intl

9h 00m

1 stop

PWM10:46 pmPortland

Apr 23

PWM6:01 pmPortland

6h 44m

1 stop

DEN10:45 pmDenver Intl

$309

American Airlines

Apr 28

DEN11:59 pmDenver Intl

9h 16m

1 stop

PWM11:15 amPortland

May 2

PWM6:00 amPortland

9h 20m

1 stop

DEN1:20 pmDenver Intl

$319

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mié. 5/6

6:03 am-4:16 pm

1 stop8h 13m

Portland

mié. 5/13

5:01 pm-2:32 pm

1 stop23h 31m

$270

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mié. 5/27

11:59 pm-9:11 am

1 stop7h 12m

Portland

mar. 6/2

4:51 pm-9:59 pm

1 stop7h 08m

$277

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mar. 4/28

8:40 am-6:38 pm

1 stop7h 58m

Portland

sáb. 5/2

11:57 am-6:26 pm

1 stop8h 29m

$283

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mié. 8/26

3:04 pm-11:57 pm

1 stop6h 53m

Portland

mié. 9/2

6:00 am-1:24 pm

1 stop9h 24m

$285

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mar. 4/28

8:40 am-6:38 pm

1 stop7h 58m

Portland

sáb. 5/2

3:40 pm-11:45 pm

2 stops10h 05m

$288

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mar. 5/5

11:54 pm-4:16 pm

2 stops14h 22m

Portland

mié. 5/13

5:01 pm-2:32 pm

1 stop23h 31m

$290

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mié. 6/3

2:21 pm-12:35 am

1 stop8h 14m

Portland

mié. 6/10

5:57 pm-10:56 pm

1 stop6h 59m

$297

DenverPortland

DEN - PWM

DENPWM

Denver Intl

mié. 5/6

6:03 am-4:16 pm

1 stop8h 13m

Portland

mar. 5/12

3:16 pm-2:32 pm

2 stops25h 16m

$304

DenverPortland

DEN - PWM

DENPWM

Denver Intl

lun. 4/20

11:46 am-10:46 pm

1 stop9h 00m

Portland

jue. 4/23

6:01 pm-10:45 pm

1 stop6h 44m

$309

Quickest round-trip

DenverPortland

DEN - PWM

DENPWM

Denver Intl

vie. 5/29

3:50 pm-11:51 pm

1 stop6h 01m

Portland

mar. 6/2

4:51 pm-9:59 pm

1 stop7h 08m

$313

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

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 $374.

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 $559. 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 time of day to depart on your flight to Portland, Maine?

In the afternoon is the cheapest time of day to fly from Denver to Portland, Maine when you can find flight prices for as low as $483. Flying to Portland, Maine in the afternoon 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 $581. 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 $442 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 $368 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.

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 March 2026, prices for Denver to Portland, Maine flights are approximately 32% 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	$371
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 $371. The best round-trip flight deal from Denver to Portland, Maine found on momondo in the last 72 hours is $528.

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 in Portland, Maine. From Denver there are direct flights to 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 5 operators available for flights from Denver Intl Airport to Portland Airport as of March 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 8, representing 48.39% of all bookings. The subsequent popular models are Boeing 737-800 at 11.29%, Boeing 737-700 at 9.68%, and Boeing 737-900 at 6.45%.
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 (57% of total bookings). The next most popular airlines are American Airlines (18%), Southwest (16%), and Delta (7%).

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 $129	Free Cancellation	Rating 5.7 3,020 reviews	Search Frontier flights
JetBlue	PriceFrom $139	Free Cancellation	Rating 7.2 2,909 reviews	Search JetBlue flights
American Airlines	PriceFrom $192	Free Cancellation	Rating 7.1 11,487 reviews	Search American Airlines flights
Delta	PriceFrom $192	Free Cancellation	Rating 7.9 8,315 reviews	Search Delta flights
Southwest	PriceFrom $258	Free Cancellation	Rating 8.0 4,325 reviews	Search Southwest flights
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 9,458 reviews	Search United Airlines flights

North Conway

Boothbay Harbor

Jackson

Conway

Freeport

Lewiston

Brunswick

Bartlett

Gorham

Auburn

Windham

Intervale

Oxford

Bath

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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

mar. 4/21

mar. 4/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Denver

Complete your trip

Feeling lucky

Airports servicing Maine

Rockland Knox County Regional Airport

Cheap flights from Denver to Portland from $133

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 5/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Denver to Portland

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

United Airlines flights from Denver to Portland, Maine

Our best United Airlines 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

momondo Fare Finder

Use the filters below to find and compare flights from Denver to Portland, Maine that are best for you.

See travel insights to Portland from

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

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

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

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

Explore popular destinations other users love

According to popular flight searches on momondo this year