HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$132+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PWM
Apr 29 — May 61
Wed 4/29
Wed 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Denver Intl to Portland are usually found in January or November, booked 28 days in advance, depart on a Friday or Saturday 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 March 30, 2026.

This KAYAK deal was found by Cheapflights users on 3/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:04 pm
DEN
-
PWM
1 stop6h 53m
JetBlue
Wed 9/26:00 am
PWM
-
DEN
1 stop9h 24m
JetBlue
Deal found 3/25$285
This Delta deal was found by Cheapflights users on 3/26. 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.
Tue 5/126:30 am
DEN
-
PWM
1 stop16h 13m
Delta
Tue 5/196:25 am
PWM
-
DEN
1 stop14h 22m
Delta
Deal found 3/26$309
This CheapOair deal was found by Cheapflights users on 3/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:59 pm
DEN
-
PWM
1 stop21h 03m
JetBlue
Tue 5/57:30 am
PWM
-
DEN
1 stop17h 34m
JetBlue
Deal found 3/26$310
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Wed 5/276:03 am
DEN
-
PWM
1 stop8h 13m
Multiple Airlines
Wed 6/35:01 pm
PWM
-
DEN
2 stops23h 03m
Multiple Airlines
Deal found 3/26$311
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Wed 5/276:03 am
DEN
-
PWM
1 stop8h 13m
Multiple Airlines
Tue 6/23:16 pm
PWM
-
DEN
2 stops25h 16m
Multiple Airlines
Deal found 3/26$321
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Sat 5/3011:54 pm
DEN
-
PWM
2 stops17h 22m
Multiple Airlines
Wed 6/36:26 pm
PWM
-
DEN
1 stop30h 13m
Multiple Airlines
Deal found 3/26$323
This Delta deal was found by Cheapflights users on 3/26. 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.
Tue 5/1211:50 pm
DEN
-
PWM
1 stop22h 53m
Delta
Mon 5/186:25 am
PWM
-
DEN
1 stop18h 15m
Delta
Deal found 3/26$328
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Wed 5/136:03 am
DEN
-
PWM
1 stop8h 13m
Multiple Airlines
Mon 5/186:13 pm
PWM
-
DEN
2 stops23h 49m
Multiple Airlines
Deal found 3/26$331
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Wed 5/136:03 am
DEN
-
PWM
1 stop8h 13m
Multiple Airlines
Wed 5/205:01 pm
PWM
-
DEN
2 stops31h 23m
Multiple Airlines
Deal found 3/29$332
This CheapOair deal was found by Cheapflights users on 3/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:59 pm
DEN
-
PWM
1 stop21h 04m
JetBlue
Tue 5/197:20 am
PWM
-
DEN
1 stop17h 39m
JetBlue
Deal found 3/29$334

Find 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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$285
(KAYAK)

One-way from

$132
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$448

Good round-trip deal

$537 or less

Good one-way deal

$328 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. 12% potential increase in price ($62 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 March 2026
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.
Search Deals

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 March 30, 2026.
Use the filters below to find and compare flights from Denver to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 8/23

8:10 am-4:35 pm

1 stop6h 25m

Portland

Wed 8/26

5:45 am-11:25 am

1 stop7h 40m

$383

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 9/17

5:15 am-3:00 pm

1 stop7h 45m

Portland

Tue 9/22

10:30 am-5:35 pm

1 stop9h 05m

$383

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 6/7

11:50 pm-9:45 am

1 stop7h 55m

Portland

Sat 6/13

12:35 pm-6:25 pm

2 stops7h 50m

$404

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 5/22

11:59 pm-9:23 am

1 stop7h 24m

Portland

Tue 5/26

7:16 pm-12:30 am

1 stop7h 14m

$413

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 5/29

12:15 pm-11:25 pm

2 stops9h 10m

Portland

Tue 6/9

5:30 am-11:10 am

1 stop7h 40m

$418

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Thu 5/28

11:35 am-11:25 pm

2 stops9h 50m

Portland

Sun 5/31

5:30 am-11:55 am

1 stop8h 25m

$454

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Fri 5/22

12:15 pm-11:25 pm

2 stops9h 10m

Portland

Wed 5/27

3:55 pm-10:35 pm

2 stops8h 40m

$464

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Tue 5/5

8:05 am-11:59 pm

2 stops13h 54m

Portland

Sat 5/9

9:40 am-2:36 pm

1 stop6h 56m

$469
Cheapest one-way

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Mon 4/27

11:59 pm-9:25 am

1 stop7h 26m

$189

DenverPortland

DEN - PWM

DENPWM

Denver Intl

Sun 6/7

11:50 pm-9:45 am

1 stop7h 55m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 March 13, 2026.

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, November is the cheapest month in which you can book a flight from Denver to Portland, Maine (average of $125). Flying from Denver to Portland, Maine in June is currently the most expensive (average of $177). 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.

How much does it cost to fly round-trip from Denver to Portland, Maine?

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 March 30, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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
4,329 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,329 reviews
Southwest
8.0
Very good
4,329 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,358 reviews
Southwest
8.0
Very good
4,329 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,514 reviews
Southwest
8.0
Very good
4,329 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,530 reviews
Southwest
8.0
Very good
4,329 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,010 reviews
Southwest
8.0
Very good
4,329 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    Southwest can get you from Denver to Portland, Maine in just under 6h 25m. Your travel time can differ by up to . Airlines will cover a distance of 1776 mi.

  • 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 70% 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. Delta flights start at $108 while deals on JetBlue start at $120 one-way.

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

    On average you can expect to pay $767 for a flight from Denver to Portland, Maine. The cheapest flight overall is $303 while the most popular route, (Denver Intl - Portland) is currently priced at $309.

  • 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, November is the cheapest month in which you can book a flight from Denver to Portland, Maine (average of $125). Flying from Denver to Portland, Maine in June is currently the most expensive (average of $177). 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
North Conway
Brunswick
Auburn
Lewiston
Conway

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Denver to Portland

Discover the top 5 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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$207FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$192Average$380FlexibilityNo cancel feeOn-time71%
DeltaCheapest$192Average$307FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$427FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$554FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.