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$85+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Portland are usually found in November or May, booked 59 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Denver to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$274
(American Airlines)

One-way from

$85
(American Airlines)

Popular in

February

Cheapest in

November

Average price

$441

Good round-trip deal

$547 or less

Good one-way deal

$203 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.
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From Denver Intl to Portland
Search Deals
One-way flight from Denver Intl to Portland
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Portland.
Search Deals
Price to beat on a one-way flight from Denver Intl to Portland.
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Find 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 September 25, 2025.

This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/189:52 amDEN - PWM
Nonstop3h 56mUnited Airlines
Tue 10/217:25 pmPWM - DEN
1 stop6h 32mUnited Airlines
Deal found 9/23$279
This American Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:40 pmDEN - PWM
1 stop7h 08mAmerican Airlines
Mon 10/275:59 pmPWM - DEN
1 stop7h 10mAmerican Airlines
Deal found 9/24$281
This American Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:40 pmDEN - PWM
1 stop7h 08mAmerican Airlines
Fri 10/316:29 amPWM - DEN
1 stop7h 26mAmerican Airlines
Deal found 9/24$284
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:42 pmDEN - PWM
1 stop9h 23mDelta
Sat 10/252:38 pmPWM - DEN
1 stop9h 03mDelta
Deal found 9/22$288
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2412:42 pmDEN - PWM
1 stop9h 23mDelta
Sat 11/16:00 amPWM - DEN
1 stop8h 52mDelta
Deal found 9/24$289
This American Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:22 amDEN - PWM
1 stop7h 43mAmerican Airlines
Sun 11/166:00 amPWM - DEN
1 stop7h 15mAmerican Airlines
Deal found 9/25$293
This American Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:29 pmDEN - PWM
1 stop8h 16mAmerican Airlines
Sun 11/25:00 amPWM - DEN
1 stop7h 15mAmerican Airlines
Deal found 9/24$294
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:59 pmDEN - PWM
1 stop8h 05mUnited Airlines
Mon 11/33:20 pmPWM - DEN
Nonstop5h 01mUnited Airlines
Deal found 9/23$303
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:05 amDEN - PWM
Nonstop3h 43mUnited Airlines
Wed 11/124:54 pmPWM - DEN
1 stop8h 21mUnited Airlines
Deal found 9/23$304
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/82:00 pmDEN - PWM
1 stop6h 19mDelta
Thu 12/46:00 amPWM - DEN
1 stop10h 09mDelta
Deal found 9/23$308
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3111:59 pmDEN - PWM
1 stop15h 39mMultiple Airlines
Mon 11/32:36 pmPWM - DEN
1 stop8h 45mMultiple Airlines
Deal found 9/23$309

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from Denver to Portland that are best for you.

Fly from

Denver

Fly to

Portland

Route

Depart

Return

Price

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 10/25

7:46 am-6:38 pm

1 stop8h 52m

Portland

Fri 10/31

3:20 pm-6:21 pm

Nonstop5h 01m

$279

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 10/15

12:42 pm-12:05 am

1 stop9h 23m

Portland

Sat 10/25

2:38 pm-9:41 pm

1 stop9h 03m

$288

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 10/25

12:42 pm-12:05 am

1 stop9h 23m

Portland

Thu 10/30

1:27 pm-8:15 pm

1 stop8h 48m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 10/14

11:59 pm-9:11 am

1 stop7h 12m

Portland

Tue 10/21

6:00 am-10:35 am

1 stop6h 35m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 10/30

6:00 am-2:12 pm

1 stop6h 12m

Portland

Mon 11/3

7:22 pm-12:17 am

1 stop6h 55m

$289

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 10/24

11:59 pm-8:44 am

1 stop6h 45m

Portland

Mon 10/27

7:22 pm-12:17 am

1 stop6h 55m

$313

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 10/19

5:50 pm-10:49 am

1 stop14h 59m

Portland

Fri 10/24

2:38 pm-9:41 pm

1 stop9h 03m

$345

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 10/29

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Sat 11/1

3:20 pm-6:21 pm

Nonstop5h 01m

$349

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Wed 11/5

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Sun 11/9

3:20 pm-6:21 pm

Nonstop5h 01m

$349

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sat 11/15

10:05 am-3:48 pm

Nonstop3h 43m

Portland

Wed 11/19

3:20 pm-6:23 pm

Nonstop5h 03m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

Showing 1-10 of 22 results
1
2
3

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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Portland, Maine flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Portland. Price data was last updated on September 19, 2025.

Booking 59 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 $296). Flying from Denver to Portland, Maine in July is currently the most expensive (average of $394). 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?

Find hourly flight availability from Denver to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

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 44% on airfare.

What is the cheapest day to fly from Denver to Portland, Maine?

Use this chart to determine the cheapest time to fly round-trip from Denver to Portland. Price data was last updated on September 21, 2025.

Travelers seeking maximum savings on their Denver to Portland, Maine flight should consider departing on Saturday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated September 25, 2025.
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
4,246 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,973 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,914 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • What airports do I use to fly from Denver to Portland?

    If you wish to fly to Portland from Denver, then you need to book flights from Denver Intl to Portland. There is 1 flight from Denver Intl (DEN) to Portland (PWM) per day to choose from. Flights to Portland from Denver Intl are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 3h 43m is how long a nonstop flight from Denver to Portland typically takes.

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

    United Airlines and Delta can get you from Denver to Portland, Maine in just under 8h 52m. Your travel time can differ by up to 31m. 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 JetBlue ($249) offers the cheapest pricing from Denver to Portland, Maine. These flights start at 71% lower than the current average price 3 months from now.

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

    On average you can expect to pay $768 for a flight from Denver to Portland, Maine. The cheapest flight overall is $194 while the most popular route, (Denver Intl - Portland) is currently priced at $237.

  • 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 $296). Flying from Denver to Portland, Maine in July is currently the most expensive (average of $394). 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.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Brunswick
North Conway
Auburn
Conway

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Top 6 airlines flying from Denver to Portland

Discover the top 6 airlines that operate flights from Denver to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$232FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$192Average$373FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$249Average$310FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$321FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$271Average$445FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$311Average$579FlexibilityNo cancel feeOn-time69%

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