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Cheap flights from Denver to Portland from $160

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 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
1:40 pm - 10:10 pmDEN  Denver Intl-PWM Portland
6h 30m1 stop Chicago Midway
Southwest Logo
5:55 am - 10:20 amPWM  Portland-DEN Denver Intl
6h 25m1 stop Baltimore/Washington
$393Southwest
Tue, Sep 15 - Fri, Sep 18
Southwest Logo
5:30 am - 3:45 pmDEN  Denver Intl-PWM Portland
8h 15m1 stop Baltimore/Washington
Southwest Logo
5:30 pm - 11:55 pmPWM  Portland-DEN Denver Intl
8h 25m1 stop Baltimore/Washington
$393Southwest
Sun, Sep 27 - Thu, Oct 1
American Airlines Logo
2:21 pm - 10:48 pmDEN  Denver Intl-PWM Portland
6h 27m1 stop Chicago O'Hare Intl
American Airlines Logo
2:03 pm - 8:35 pmPWM  Portland-DEN Denver Intl
8h 32m1 stop Chicago O'Hare Intl
$393American Airlines
Tue, Sep 8 - Fri, Sep 11
American Airlines Logo
1:21 pm - 10:13 pmDEN  Denver Intl-PWM Portland
6h 52m1 stop Charlotte Douglas
American Airlines Logo
5:38 pm - 12:17 amPWM  Portland-DEN Denver Intl
8h 39m1 stop Chicago O'Hare Intl
$393American Airlines
Thu, Sep 10 - Fri, Sep 11
United Airlines Logo
6:00 am - 1:55 pmDEN  Denver Intl-PWM Portland
5h 55m1 stop Newark
United Airlines Logo
7:35 pm - 12:30 amPWM  Portland-DEN Denver Intl
6h 55m1 stop Washington, D.C. Dulles Intl
$394United Airlines
Tue, Aug 25 - Mon, Aug 31
Delta Logo
12:00 pm - 9:31 pmDEN  Denver Intl-PWM Portland
7h 31m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 10:47 amPWM  Portland-DEN Denver Intl
6h 47m1 stop New York John F Kennedy Intl
$394Delta
Sat, Aug 22 - Wed, Sep 2
Delta Logo
12:00 pm - 9:31 pmDEN  Denver Intl-PWM Portland
7h 31m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 10:47 amPWM  Portland-DEN Denver Intl
6h 47m1 stop New York John F Kennedy Intl
$394Delta
Sat, Aug 22 - Tue, Sep 1
United Airlines Logo
10:11 am - 4:02 pmDEN  Denver Intl-PWM Portland
3h 51mnonstop
United Airlines Logo
3:23 pm - 6:14 pmPWM  Portland-DEN Denver Intl
4h 51mnonstop
$398United Airlines
Fri, Oct 30 - Sat, Nov 7
Multiple Airlines Logo
7:12 pm - 9:08 amDEN  Denver Intl-PWM Portland
11h 56m1 stop Orlando
Multiple Airlines Logo
7:00 am - 8:04 amPWM  Portland-DEN Denver Intl
27h 04m2 stops Cincinnati Cinci./N. Kentucky Atlanta Hartsfield-Jackson
$399Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
10:40 am - 9:19 pmDEN  Denver Intl-PWM Portland
8h 39m1 stop Columbus
Multiple Airlines Logo
7:00 am - 9:24 pmPWM  Portland-DEN Denver Intl
16h 24m2 stops Cincinnati Cinci./N. Kentucky Atlanta Hartsfield-Jackson
$404Multiple Airlines
Wed, Sep 23 - Mon, Sep 28

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American Airlines flights from Denver to Portland, Maine

Our best American Airlines deals on Denver to Portland, Maine flight tickets
American Airlines
Sep 8
DEN2:21 pmDenver Intl
6h 27m
1 stop
PWM10:48 pmPortland
Sep 11
PWM2:03 pmPortland
8h 32m
1 stop
DEN8:35 pmDenver Intl
$393
American Airlines
Sep 6
DEN5:06 amDenver Intl
9h 27m
2 stops
PWM4:33 pmPortland
Sep 10
PWM4:41 pmPortland
9h 10m
2 stops
DEN11:51 pmDenver Intl
$400
American Airlines
Sep 30
DEN7:16 amDenver Intl
7h 38m
1 stop
PWM4:54 pmPortland
Oct 4
PWM6:00 amPortland
7h 11m
1 stop
DEN11:11 amDenver Intl
$419

United Airlines flights from Denver to Portland, Maine

Our best United Airlines deals on Denver to Portland, Maine flight tickets
United Airlines
Sep 2
DEN9:53 amDenver Intl
3h 58m
PWM3:51 pmPortland
Sep 5
PWM3:37 pmPortland
4h 33m
DEN6:10 pmDenver Intl
$418
United Airlines
Sep 2
DEN6:00 amDenver Intl
6h 34m
1 stop
PWM2:34 pmPortland
Sep 9
PWM3:37 pmPortland
4h 33m
DEN6:10 pmDenver Intl
$420
United Airlines
Sep 26
DEN10:04 amDenver Intl
3h 58m
PWM4:02 pmPortland
Oct 3
PWM5:08 pmPortland
6h 36m
1 stop
DEN9:44 pmDenver Intl
$430

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Portland, Maine 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, momondo users made 832,500 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Denver to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 9/15

1:40 pm-10:10 pm

1 stop6h 30m

Portland

Fri 9/18

5:55 am-10:20 am

1 stop6h 25m

$393

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sun 9/27

5:30 am-3:45 pm

1 stop8h 15m

Portland

Thu 10/1

5:30 pm-11:55 pm

1 stop8h 25m

$393

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 9/8

2:21 pm-10:48 pm

1 stop6h 27m

Portland

Fri 9/11

2:03 pm-8:35 pm

1 stop8h 32m

$393

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Thu 9/10

1:21 pm-10:13 pm

1 stop6h 52m

Portland

Fri 9/11

5:38 pm-12:17 am

1 stop8h 39m

$393

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Tue 8/25

6:00 am-1:55 pm

1 stop5h 55m

Portland

Mon 8/31

7:35 pm-12:30 am

1 stop6h 55m

$394

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sat 8/22

12:00 pm-9:31 pm

1 stop7h 31m

Portland

Wed 9/2

6:00 am-10:47 am

1 stop6h 47m

$394

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Sat 8/22

12:00 pm-9:31 pm

1 stop7h 31m

Portland

Tue 9/1

6:00 am-10:47 am

1 stop6h 47m

$394
Quickest round-trip

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Fri 10/30

10:11 am-4:02 pm

Nonstop3h 51m

Portland

Sat 11/7

3:23 pm-6:14 pm

Nonstop4h 51m

$398

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Thu 9/10

7:12 pm-9:08 am

1 stop11h 56m

Portland

Mon 9/14

7:00 am-8:04 am

2 stops27h 04m

$399

DenverPortland

DEN Denver Intl - PWM Portland

DENPWM

Denver Intl

Wed 9/23

10:40 am-9:19 pm

1 stop8h 39m

Portland

Mon 9/28

7:00 am-9:24 pm

2 stops16h 24m

$404

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

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

What is the typical price of a round-trip flight between Denver and Portland, Maine?

Prices are currently low for flights on this route.

Typical prices usually range from $435 to $723.
The lowest price recently found on this route was $393.

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 $365.

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 $519. 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 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 from Denver 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 $472 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 $360 on momondo.

What cabin class options are available on Denver to Portland, Maine flights?

There are 3 cabin classes available to choose from on Denver to Portland, Maine 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 August 2026, prices for Denver to Portland, Maine flights are approximately 26% cheaper 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

$353

Fastest flight time

3h 51m

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 $353. The best round-trip flight deal from Denver to Portland, Maine found on momondo in the last 72 hours is $457.
The fastest flight from Denver to Portland, Maine takes 3h 51m
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

Frequently asked questions about flying from Denver to Portland, Maine

  • How far is Denver Intl to Portland by plane?

    Portland is 1797.3 mi away from Denver Intl. 3h 51m 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?

  • 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?

  • What is the most popular airline from Denver to 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
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $258Free CancellationRating
7.8
8,502 reviews
Search Delta flights
JetBluePriceFrom $266Free CancellationRating
7.1
3,024 reviews
Search JetBlue flights
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,877 reviews
Search American Airlines flights
United AirlinesPriceFrom $290Free CancellationRating
7.4
10,084 reviews
Search United Airlines flights
SouthwestPriceFrom $323Free CancellationRating
8.0
4,217 reviews
Search Southwest flights

  • United Airlines Flights From Denver to Portland, Maine

    United Airlines is one of the most popular airlines flying from Denver to Portland, Maine, operating 1 flight/week on average for this route. A good United Airlines flight deal for Denver to Portland, Maine starts from $290 round-trip, up to an average price of $557. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Lewiston
Brunswick
Freeport
Conway
Gorham
Bartlett
Auburn
Windham
Intervale
Bath
Oxford
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.
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