How long is the flight from Denver to Portland, Maine?

Southwest, American Airlines, and United Airlines can get you from Denver to Portland, Maine in just under 6h 35m. Your travel time can differ by up to 1h 45m. Airlines will cover a distance of 1776 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Denver to Portland, Maine round-trip?

According to our current data, Frontier ($129), American Airlines ($192), and Delta ($192) offers the cheapest pricing from Denver to Portland, Maine. These flights start at 72% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Denver to Portland, Maine one-way?

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $84. Frontier flights start at $85 while deals on Delta start at $108 one-way.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the cheapest flights from Denver to Portland, Maine?

On average you can expect to pay $1,082 for a flight from Denver to Portland, Maine. The cheapest flight overall is $1,082 while the most popular route, (Denver Intl - Portland) is currently priced at $264.

What are the most popular airlines that fly from Denver to Portland, Maine?

When booking a flight from Denver to Portland, Maine, you may want to consider flying on United Airlines, American Airlines or Southwest as they are the most popular for this route.

Most accurate provider : When it comes to deals on Denver-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Portland, Maine flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Denver-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Denver to Portland that include hotel bookings?

Yes. In addition to deals on Denver to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Denver to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Portland.

Can I find deals for business class flights from Denver to Portland?

Yes. Cheapflights offers flight deals from Denver to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$126+ Flights from Denver to Portland, ME

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Find cheap flights from Denver to Portland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Denver Intl to Portland are usually found in November or October, booked 28 days in advance, depart on a Tuesday or Friday and return on a Friday

Cheap flight deals from Denver to Portland

Cheapest flights from Denver to Portland
Explore the most affordable flight options available from Denver to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Tue 12/306:45 amDEN - PWM

1 stop7h 23mDelta

Thu 1/15:45 amPWM - DEN

1 stop9h 36mDelta

Deal found 12/25

$544

Tue 12/303:35 pmDEN - PWM

1 stop6h 30mSouthwest

Tue 1/65:45 amPWM - DEN

2 stops10h 50mSouthwest

Deal found 12/27

$549

Tue 12/303:35 pmDEN - PWM

1 stop6h 30mSouthwest

Thu 1/112:45 pmPWM - DEN

2 stops11h 30mSouthwest

Deal found 12/25

$569

Tue 12/3011:06 amDEN - PWM

2 stops45h 03mMultiple Airlines

Wed 1/711:02 amPWM - DEN

1 stop13h 57mMultiple Airlines

Deal found 12/27

$601

Wed 12/317:50 amDEN - PWM

1 stop9h 01mUnited Airlines

Fri 1/29:30 amPWM - DEN

1 stop7h 13mUnited Airlines

Deal found 12/27

$609

Wed 12/3110:20 amDEN - PWM

2 stops9h 55mSouthwest

Fri 1/23:15 pmPWM - DEN

1 stop7h 05mSouthwest

Deal found 12/27

$614

Tue 12/3011:06 amDEN - PWM

2 stops45h 03mMultiple Airlines

Mon 1/59:46 amPWM - DEN

1 stop26h 36mMultiple Airlines

Deal found 12/27

$623

Sun 12/283:35 pmDEN - PWM

1 stop6h 30mSouthwest

Fri 1/23:15 pmPWM - DEN

1 stop7h 05mSouthwest

Deal found 12/27

$648

Mon 12/2912:42 pmDEN - PWM

1 stop8h 01mDelta

Wed 1/76:00 amPWM - DEN

2 stops13h 26mDelta

Deal found 12/27

$672

Best flights from Denver to Portland
Discover carefully curated flight deals from Denver to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Tue 2/36:20 amDEN - PWM

1 stop6h 35mSouthwest

Tue 2/1012:45 pmPWM - DEN

1 stop8h 35mSouthwest

Deal found 12/27

$251

Fri 1/3012:34 pmDEN - PWM

2 stops8h 20mAmerican Airlines

Wed 2/46:00 amPWM - DEN

2 stops11h 19mAmerican Airlines

Deal found 12/27

$280

Fri 1/231:31 pmDEN - PWM

1 stop7h 59mUnited Airlines

Fri 1/304:10 pmPWM - DEN

1 stop7h 49mUnited Airlines

Deal found 12/26

$289

Thu 1/221:16 pmDEN - PWM

1 stop7h 11mDelta

Sun 1/255:30 amPWM - DEN

1 stop8h 40mDelta

Deal found 12/27

$289

Thu 1/227:46 amDEN - PWM

1 stop9h 04mUnited Airlines

Mon 1/263:12 pmPWM - DEN

1 stop8h 12mUnited Airlines

Deal found 12/27

$289

Tue 6/2312:20 pmDEN - PWM

1 stop9h 39mDelta

Tue 7/72:35 pmPWM - DEN

1 stop10h 14mDelta

Deal found 12/26

$289

Wed 2/186:20 amDEN - PWM

1 stop6h 35mSouthwest

Sun 2/225:30 amPWM - DEN

1 stop7h 05mSouthwest

Deal found 12/26

$304

Tue 3/310:20 amDEN - PWM

2 stops10h 10mAmerican Airlines

Sat 3/712:29 pmPWM - DEN

2 stops12h 08mAmerican Airlines

Deal found 12/28

$314

Mon 6/112:59 amDEN - PWM

1 stop9h 19mDelta

Tue 6/93:00 pmPWM - DEN

1 stop7h 39mDelta

Deal found 12/27

$289

Fri 1/2311:59 pmDEN - PWM

1 stop7h 02mUnited Airlines

Mon 1/263:12 pmPWM - DEN

1 stop8h 12mUnited Airlines

Deal found 12/27

$289

Sat 5/166:45 amDEN - PWM

1 stop7h 30mDelta

Tue 5/194:50 pmPWM - DEN

1 stop6h 48mDelta

Deal found 12/26

$289

Last-minute flights from Denver to Portland
Discover last-minute flight deals from Denver to Portland. Data last updated December 28, 2025 and is based on user searches.

Sun 1/186:00 amDEN - PWM

1 stop7h 31mAmerican Airlines

Sun 1/253:58 pmPWM - DEN

1 stop7h 13mAmerican Airlines

Deal found 12/27

$323

Tue 1/206:00 amDEN - PWM

1 stop7h 31mAmerican Airlines

Tue 1/277:00 amPWM - DEN

1 stop7h 49mAmerican Airlines

Deal found 12/26

$251

Wed 1/2111:29 amDEN - PWM

1 stop8h 38mAmerican Airlines

Fri 1/3012:40 pmPWM - DEN

1 stop10h 31mAmerican Airlines

Deal found 12/27

$270

Thu 1/227:46 amDEN - PWM

1 stop9h 04mUnited Airlines

Mon 1/263:12 pmPWM - DEN

1 stop8h 12mUnited Airlines

Deal found 12/27

$289

Thu 1/2211:29 amDEN - PWM

1 stop8h 38mAmerican Airlines

Mon 1/265:20 amPWM - DEN

2 stops13h 01mAmerican Airlines

Deal found 12/27

$294

Thu 1/2210:45 amDEN - PWM

2 stops10h 58mAmerican Airlines

Sun 1/255:20 amPWM - DEN

2 stops11h 56mAmerican Airlines

Deal found 12/27

$299

Fri 1/236:32 pmDEN - PWM

1 stop13h 50mMultiple Airlines

Mon 1/265:06 pmPWM - DEN

2 stops27h 53mMultiple Airlines

Deal found 12/27

$279

Fri 1/309:41 amDEN - PWM

1 stop22h 41mMultiple Airlines

Wed 2/46:18 pmPWM - DEN

1 stop27h 42mMultiple Airlines

Deal found 12/26

$264

One-way flights from Denver to Portland
Search for one-way flight options from Denver to Portland. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Wed 1/2811:29 amDEN - PWM

1 stop8h 38mAmerican Airlines

Deal found 12/26

$126

Wed 1/287:30 amDEN - PWM

3 stops54h 56mMultiple Airlines

Deal found 12/26

$148

Sat 2/281:42 pmDEN - PWM

2 stops43h 07mMultiple Airlines

Deal found 12/27

$149

Fri 1/1611:59 pmDEN - PWM

1 stop8h 23mMultiple Airlines

Deal found 12/27

$157

Sat 2/2812:09 amDEN - PWM

2 stops32h 40mMultiple Airlines

Deal found 12/26

$165

Sat 1/317:59 pmDEN - PWM

3 stops42h 27mMultiple Airlines

Deal found 12/26

$178

Sun 3/16:05 amDEN - PWM

1 stop8h 10mSouthwest

Deal found 12/26

$179

Wed 2/112:19 pmDEN - PWM

3 stops40h 48mMultiple Airlines

Deal found 12/26

$196

Find flight deals from Denver to Portland

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$251 (Southwest)
One-way from	$126 (American Airlines)
Popular in	July
Cheapest in	November
Average price	$536
Good round-trip deal	$1,082 or less

Provider with most accurate pricing for Denver Intl-Portland flight deals.

Search Deals

Provider most trusted by Cheapflights users for Denver Intl-Portland flights.

Search Deals

From Denver Intl to Portland

Search Deals

One-way flight from Denver Intl to Portland

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($47 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Denver Intl to Portland.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 2/3

6:20 am-2:55 pm

1 stop6h 35m

Portland

Tue 2/10

12:45 pm-7:20 pm

1 stop8h 35m

$251

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 1/30

12:34 pm-10:54 pm

2 stops8h 20m

Portland

Wed 2/4

6:00 am-3:19 pm

2 stops11h 19m

$280

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 1/23

1:31 pm-11:30 pm

1 stop7h 59m

Portland

Fri 1/30

4:10 pm-9:59 pm

1 stop7h 49m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 1/22

1:16 pm-10:27 pm

1 stop7h 11m

Portland

Sun 1/25

5:30 am-12:10 pm

1 stop8h 40m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 1/22

7:46 am-6:50 pm

1 stop9h 04m

Portland

Mon 1/26

3:12 pm-9:24 pm

1 stop8h 12m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 6/23

12:20 pm-11:59 pm

1 stop9h 39m

Portland

Tue 7/7

2:35 pm-10:49 pm

1 stop10h 14m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Mon 6/1

12:59 am-12:18 pm

1 stop9h 19m

Portland

Tue 6/9

3:00 pm-8:39 pm

1 stop7h 39m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 1/23

11:59 pm-9:01 am

1 stop7h 02m

Portland

Mon 1/26

3:12 pm-9:24 pm

1 stop8h 12m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 5/16

6:45 am-4:15 pm

1 stop7h 30m

Portland

Tue 5/19

4:50 pm-9:38 pm

1 stop6h 48m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 2/18

6:20 am-2:55 pm

1 stop6h 35m

Portland

Sun 2/22

5:30 am-10:35 am

1 stop7h 05m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 19 results

Compare providers for flights from Denver to Portland

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Portland in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Denver-Portland, Maine flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Portland, Maine flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Portland, Maine flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Denver-Portland, Maine flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Denver with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Portland

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

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Portland, Maine. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from Denver to Portland, Maine (average of $98). Flying from Denver to Portland, Maine in June is currently the most expensive (average of $173). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to PWM?

One of the essential ways to save on airfare from Denver to Portland, Maine is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 39% on airfare.

Reviews of airlines servicing Portland

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Denver to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,256 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,019 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,113 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,072 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.8

Fair

3,065 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

How long is the flight from Denver to Portland, Maine?
Southwest, American Airlines, and United Airlines can get you from Denver to Portland, Maine in just under 6h 35m. Your travel time can differ by up to 1h 45m. Airlines will cover a distance of 1776 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Denver to Portland, Maine round-trip?
According to our current data, Frontier ($129), American Airlines ($192), and Delta ($192) offers the cheapest pricing from Denver to Portland, Maine. These flights start at 72% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Denver to Portland, Maine one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $84. Frontier flights start at $85 while deals on Delta start at $108 one-way.
What are the cheapest flights from Denver to Portland, Maine?
On average you can expect to pay $1,082 for a flight from Denver to Portland, Maine. The cheapest flight overall is $1,082 while the most popular route, (Denver Intl - Portland) is currently priced at $264.
Can I find deals for flights from Denver to Portland that include hotel bookings?
Yes. In addition to deals on Denver to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Denver to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Portland.
Can I find deals for business class flights from Denver to Portland?
Yes. Cheapflights offers flight deals from Denver to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Denver to Portland, Maine?
Currently, January is the cheapest month in which you can book a flight from Denver to Portland, Maine (average of $98). Flying from Denver to Portland, Maine in June is currently the most expensive (average of $173). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Conway

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Top 6 airlines flying from Denver to Portland

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$129	Average$232	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$192	Average$373	FlexibilityNo cancel fee	On-time71%
JetBlue	Cheapest$249	Average$294	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$249	Average$319	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$272	Average$447	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$288	Average$574	FlexibilityNo cancel fee	On-time69%

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$126+ Cheap flights from Denver to Portland, ME (DEN - PWM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Denver Intl to Portland are usually found in November or October, booked 28 days in advance, depart on a Tuesday or Friday and return on a Friday

Cheap flight deals from Denver to Portland

Cheapest flights from Denver to PortlandExplore the most affordable flight options available from Denver to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Explore the most affordable flight options available from Denver to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Find flight deals from Denver to Portland

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

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

Compare providers for flights from Denver to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Portland in December.

Best time to book a flight from Denver to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Denver with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Denver to Portland

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

What is the cheapest month to book a flight from Denver to Portland, Maine?

What is the cheapest time of day to fly from DEN to PWM?

Reviews of airlines servicing Portland

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Denver to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Denver to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Denver to Portland, Maine?

What are the cheapest airlines flying from Denver to Portland, Maine round-trip?

What are the cheapest airlines to fly from Denver to Portland, Maine one-way?

What are the cheapest flights from Denver to Portland, Maine?

Can I find deals for flights from Denver to Portland that include hotel bookings?

How can I find direct flights from Denver to Portland?

Can I find deals for business class flights from Denver to Portland?

What is the cheapest month to book a flight from Denver to Portland, Maine?

Traveling to a place near Portland?

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Alternative routes for Denver to Portland

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Top 6 airlines flying from Denver to Portland

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Cheapest flights from Denver to Portland
Explore the most affordable flight options available from Denver to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.