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$129+ Cheap flights from Portland, ME to Denver (PWM - DEN)

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Denver Intl are usually found in January or April, booked 72 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Denver (DEN). 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 June 12, 2025.

Round-trip from

$299
(Southwest)

One-way from

$134
(JetBlue)

Popular in

July

Cheapest in

January

Average price

$498

Good round-trip deal

$473 or less

Good one-way deal

$273 or less
From Portland to Denver Intl
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One-way flight from Portland to Denver Intl
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Highest demand for flights based on searches. 7% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Portland to Denver Intl.
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Price to beat on a one-way flight from Portland to Denver Intl.
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Find flight deals from Portland to Denver

Cheapest flights from Portland to Denver
Explore the most affordable flight options available from Portland to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 8/308:00 amPWM - DEN
2 stops10h 42mAmerican Airlines
Sat 9/65:44 amDEN - PWM
2 stops8h 55mAmerican Airlines
Deal found 6/12$299
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1412:46 pmPWM - DEN
1 stop24h 36mSun Country Air
Fri 7/185:49 pmDEN - PWM
1 stop16h 26mSun Country Air
Deal found 6/10$305
This Delta deal was found by Cheapflights users on 6/10. 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.
Sun 11/94:55 pmPWM - DEN
1 stop6h 45mDelta
Sat 11/1510:30 amDEN - PWM
1 stop5h 10mDelta
Deal found 6/10$307
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/97:15 pmPWM - DEN
1 stop7h 15mUnited Airlines
Sat 7/123:54 pmDEN - PWM
1 stop6h 05mUnited Airlines
Deal found 6/10$314
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/315:40 amPWM - DEN
2 stops8h 45mSouthwest
Thu 8/711:40 pmDEN - PWM
1 stop8h 10mSouthwest
Deal found 6/12$319
This Booking.com deal was found by Cheapflights users on 6/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/301:41 pmPWM - DEN
1 stop20h 21mFrontier
Fri 9/512:04 amDEN - PWM
1 stop15h 13mFrontier
Deal found 6/12$350
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/252:19 pmPWM - DEN
1 stop10h 40mJetBlue
Tue 7/111:25 amDEN - PWM
1 stop10h 27mJetBlue
Deal found 6/10$385
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1012:46 pmPWM - DEN
1 stop6h 39mMultiple Airlines
Fri 8/1512:23 amDEN - PWM
1 stop15h 50mMultiple Airlines
Deal found 6/10$511

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Denver 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 June 12, 2025.
Use the filters below to find and compare flights from Portland to Denver that are best for you.

Fly from

Portland

Fly to

Denver

Route

Depart

Return

Price

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 8/30

8:00 am-4:42 pm

2 stops10h 42m

Denver Intl

Sat 9/6

5:44 am-4:39 pm

2 stops8h 55m

$299

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 6/26

3:37 pm-6:15 pm

Nonstop4h 38m

Denver Intl

Fri 7/4

11:54 pm-9:24 am

1 stop7h 30m

$304

PortlandDenver

PWM - DEN

PWMDEN

Portland

Mon 7/14

12:46 pm-11:22 am

1 stop24h 36m

Denver Intl

Fri 7/18

5:49 pm-12:15 pm

1 stop16h 26m

$305

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sun 11/9

4:55 pm-9:40 pm

1 stop6h 45m

Denver Intl

Thu 11/13

11:59 pm-9:32 am

1 stop7h 33m

$307

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 7/31

5:40 am-12:25 pm

2 stops8h 45m

Denver Intl

Thu 8/7

11:40 pm-9:50 am

1 stop8h 10m

$319

PortlandDenver

PWM - DEN

PWMDEN

Portland

Sat 8/30

1:41 pm-8:02 am

1 stop20h 21m

Denver Intl

Fri 9/5

12:04 am-5:17 pm

1 stop15h 13m

$350

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 6/25

2:19 pm-10:59 pm

1 stop10h 40m

Denver Intl

Tue 7/1

11:25 am-11:52 pm

1 stop10h 27m

$385

PortlandDenver

PWM - DEN

PWMDEN

Portland

Thu 6/26

12:40 pm-6:45 pm

1 stop8h 05m

Denver Intl

Fri 7/4

12:23 am-6:13 pm

1 stop15h 50m

$424

PortlandDenver

PWM - DEN

PWMDEN

Portland

Wed 9/17

2:35 pm-10:46 pm

1 stop10h 11m

$129

PortlandDenver

PWM - DEN

PWMDEN

Portland

Tue 7/29

6:05 am-10:25 am

1 stop6h 20m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
1
2

Best time to book a flight from Portland to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Portland 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 Portland to Denver

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Denver. Price data was last updated on June 9, 2025.

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Denver. 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 Portland, Maine to Denver?

Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Denver (average of $197). Flying from Portland, Maine to Denver in March is currently the most expensive (average of $278). 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 PWM to DEN?

Find hourly flight availability from Portland to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 48% on flights from Portland, Maine to Denver by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Denver. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Portland, Maine to Denver

Explore weekly flight availability from Portland to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from PWM to DEN are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Portland to Denver, such as Breeze Airways, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,950 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,925 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Portland to Denver. 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 Portland to Denver?

    Denver Intl is the airport most travelers will use when flying to Denver from Portland. Booking flights from Portland (PWM) to Denver Intl (DEN) should be relatively easy as there is 1 daily flight to Denver from 6 different airlines. 4h 25m is how long a flight from Portland to Denver Intl will take if you book a nonstop flight.

  • How popular is this Portland, Maine to Denver flight route?

    Flights from Portland to Denver Intl have been viewed 1 times in the past calendar month.

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

    According to our current data, Southwest ($299), United Airlines ($304), and Sun Country Air ($305) offers the cheapest pricing from Portland, Maine to Denver. You may be able to fly from Portland, Maine to Denver for 34% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $134. Sun Country Air flights start at $138 while deals on American Airlines start at $140 one-way.

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

    While on average a flight from Portland, Maine to Denver is generally $1,008, our data shows the cheapest flight currently is $206. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $247 for that flight.

  • Where are the most common layover locations when flying from Portland, Maine to Denver?

    Portland, Maine to Denver flights have a layover in New York most often.

  • What are some popular things to do or see while on a layover in New York?

    If you're on a layover in New York and looking for things to do, consider visiting Times Square, New York City Center, or Madison Square Garden. Times Square, New York City Center, and Madison Square Garden can be accessed by traveling approximately 13.6 mi, 13.6 mi, and 13.6 mi, respectively from New York John F Kennedy Intl. Travelers can rent a car at New York John F Kennedy Intl for an average daily rate of $68 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Portland, Maine to Denver flights?

    The least popular layover on flights from Portland, Maine to Denver is Philadelphia.

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

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

  • How can I find direct flights from Portland to Denver?

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

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

    Yes. Cheapflights offers flight deals from Portland to Denver 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 Portland, Maine to Denver?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Denver (average of $197). Flying from Portland, Maine to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Greeley
Limon

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Portland to Denver

Discover the top 6 airlines that operate flights from Portland to Denver. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$260FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$226Average$315FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$349FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$384FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$471FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$322Average$541FlexibilityNo cancel feeOn-time69%

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