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Cheap flights from Portland to Denver from $73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Denver departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland to Denver

Cheap round-trip flights

Frontier Logo
7:17 pm - 12:26 amPDX-DEN
28h 09m1 stop
Frontier Logo
9:58 am - 11:48 amDEN-PDX
2h 50mnonstop
$96Frontier
Find Deal
Fri, Oct 3 - Tue, Oct 7
Frontier Logo
12:43 pm - 4:26 pmPDX-DEN
2h 43mnonstop
Frontier Logo
9:58 am - 11:48 amDEN-PDX
2h 50mnonstop
$97Frontier
Find Deal
Thu, Oct 16 - Sat, Oct 18
Frontier Logo
7:15 am - 10:58 amPDX-DEN
2h 43mnonstop
Frontier Logo
10:29 pm - 12:12 amDEN-PDX
2h 43mnonstop
$98Frontier
Find Deal
Wed, Oct 1 - Thu, Oct 2
Frontier Logo
12:43 pm - 4:26 pmPDX-DEN
2h 43mnonstop
Frontier Logo
10:29 pm - 8:47 pmDEN-PDX
23h 18m1 stop
$99Frontier
Find Deal
Wed, Oct 8 - Sun, Oct 12
Frontier Logo
12:43 pm - 4:26 pmPDX-DEN
2h 43mnonstop
Frontier Logo
6:00 am - 8:47 pmDEN-PDX
15h 47m1 stop
$100Frontier
Find Deal
Tue, Oct 14 - Mon, Oct 20
Frontier Logo
12:43 pm - 4:26 pmPDX-DEN
2h 43mnonstop
Frontier Logo
9:58 am - 11:48 amDEN-PDX
2h 50mnonstop
$101Frontier
Find Deal
Tue, Oct 14 - Mon, Oct 20
Frontier Logo
7:15 am - 10:58 amPDX-DEN
2h 43mnonstop
Frontier Logo
10:29 pm - 12:12 amDEN-PDX
2h 43mnonstop
$102Frontier
Find Deal
Tue, Sep 30 - Fri, Oct 3
Logo
12:07 pm - 10:08 amPDX-DEN
21h 01m2 stops
Logo
10:29 pm - 12:12 amDEN-PDX
2h 43mnonstop
$116
Find Deal
Wed, Oct 1 - Sun, Oct 5
Southwest Logo
6:30 pm - 9:55 pmPDX-DEN
2h 25mnonstop
Southwest Logo
10:25 pm - 12:05 amDEN-PDX
2h 40mnonstop
$121Southwest
Find Deal
Wed, Oct 15 - Fri, Oct 17
Southwest Logo
5:10 am - 11:10 amPDX-DEN
5h 00m1 stop
Southwest Logo
6:45 pm - 11:45 pmDEN-PDX
6h 00m1 stop
$123Southwest
Find Deal
Tue, Oct 21 - Tue, Oct 28

Frontier flights from Portland to Denver

Our best Frontier deals on Portland to Denver flight tickets
Frontier
Oct 3
PDX7:17 pmPortland
28h 09m
1 stop
DEN12:26 amDenver Intl
Oct 7
DEN9:58 amDenver Intl
2h 50m
PDX11:48 amPortland
$96
Find similar
Frontier
Oct 16
PDX12:43 pmPortland
2h 43m
DEN4:26 pmDenver Intl
Oct 18
DEN9:58 amDenver Intl
2h 50m
PDX11:48 amPortland
$97
Find similar
Frontier
Sep 24
PDX7:15 amPortland
2h 43m
DEN10:58 amDenver Intl
Oct 1
DEN8:50 pmDenver Intl
2h 44m
PDX10:34 pmPortland
$98
Find similar

Southwest flights from Portland to Denver

Our best Southwest deals on Portland to Denver flight tickets
Southwest
Oct 15
PDX6:30 pmPortland
2h 25m
DEN9:55 pmDenver Intl
Oct 17
DEN10:25 pmDenver Intl
2h 40m
PDX12:05 amPortland
$121
Find similar
Southwest
Oct 21
PDX5:10 amPortland
5h 00m
1 stop
DEN11:10 amDenver Intl
Oct 28
DEN6:45 pmDenver Intl
6h 00m
1 stop
PDX11:45 pmPortland
$123
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Portland to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 10/3

7:17 pm-12:26 am

1 stop28h 09m

Denver Intl

Tue 10/7

9:58 am-11:48 am

Nonstop2h 50m

$96

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 10/16

12:43 pm-4:26 pm

Nonstop2h 43m

Denver Intl

Sat 10/18

9:58 am-11:48 am

Nonstop2h 50m

$97

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 10/1

7:15 am-10:58 am

Nonstop2h 43m

Denver Intl

Thu 10/2

10:29 pm-12:12 am

Nonstop2h 43m

$98

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 10/8

12:43 pm-4:26 pm

Nonstop2h 43m

Denver Intl

Sun 10/12

10:29 pm-8:47 pm

1 stop23h 18m

$99

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 10/14

12:43 pm-4:26 pm

Nonstop2h 43m

Denver Intl

Mon 10/20

6:00 am-8:47 pm

1 stop15h 47m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 10/14

12:43 pm-4:26 pm

Nonstop2h 43m

Denver Intl

Mon 10/20

9:58 am-11:48 am

Nonstop2h 50m

$101

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 9/30

7:15 am-10:58 am

Nonstop2h 43m

Denver Intl

Fri 10/3

10:29 pm-12:12 am

Nonstop2h 43m

$102

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 10/1

12:07 pm-10:08 am

2 stops21h 01m

Denver Intl

Sun 10/5

10:29 pm-12:12 am

Nonstop2h 43m

$116

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 10/15

6:30 pm-9:55 pm

Nonstop2h 25m

Denver Intl

Fri 10/17

10:25 pm-12:05 am

Nonstop2h 40m

$121

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 10/21

5:10 am-11:10 am

1 stop5h 00m

Denver Intl

Tue 10/28

6:45 pm-11:45 pm

1 stop6h 00m

$123

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 Denver from

How to get the cheapest flight ticket from Portland to Denver

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 cheapest month to fly to Denver?

The cheapest month to fly to Denver from Portland is in September. Flight prices, which tend to average around $143, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until October to fly from Portland, when ticket prices are also cheap, with an average price of $154.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $312. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $415.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $321. Flights at noon are often more expensive with an average ticket price of $427.

What is the cheapest Portland to Denver Intl flight route?

Fly from Portland to Denver Intl for the best Portland - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $193 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Portland for as low as $141 on momondo.

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

There are 4 cabin classes available to choose from on Portland to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Portland to Denver flight prices changed over time?

As of September 2025, prices for Portland to Denver flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Denver (PDX to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Denver

Best Price Found

$134

Fastest flight time

2h 25m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Portland in the past 72 hours is $134. The best round-trip flight deal from Portland to Denver found on momondo in the last 72 hours is $197.
The fastest flight from Portland to Denver takes 2h 25m
Direct flights go from Portland to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is Portland to Denver Intl by plane?

    The straight-line distance from Portland to Denver Intl is 980.7 mi. Typically, this will take 2h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to Denver Intl Airport?

    Prices for flights from Portland Airport to Denver Intl Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Denver Intl Airport?

  • How old do you have to be to fly from Portland Airport to Denver Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland to Denver?

  • What is the most popular airline from Portland to Denver?

Best airlines flying from Portland to Denver

Compare and see reviews for airlines that fly from Portland to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $58Free CancellationRating
5.8
3,177 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $98Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $163Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

  • Southwest Flights From Portland to Denver

    Southwest flight deals from Portland to Denver start from $157 round-trip. Over the 31 Southwest flights for this route in a normal week, average airfare is usually $246 round-trip - but some users have found much cheaper deals with momondo.

  • Alaska Airlines Flights From Portland to Denver

    Alaska Airlines (8.0/10 from 10,000 reviews) operates around 5 flights from Portland to Denver in any given week. The average Alaska Airlines airfare for this route is around $262, with deals from around $163 rare but found on momondo. Referenced prices are for round-trip Portland to Denver flight searches in the last 72 hours.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Boulder
Manitou Springs
Longmont
Lakewood
Greeley
Thornton
Westminster
Winter Park
Copper Mountain
Frisco
Grand Lake
Silverthorne
Golden

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Denver?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Denver. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Denver with flexible booking policies on momondo?

All flight searches from Portland to Denver on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Denver?

momondo helps you find the best flight between Portland and Denver by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to Denver right now. Can momondo alert me if prices change?

Price alerts on flights to Denver from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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