What is the cheapest airline that flies from Portland to Denver Intl?

United Airlines and Alaska Airlines are the most popular carriers operating from Portland to Denver Intl

What airlines fly to Denver?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from Portland according to our data. Frontier is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

How many flights depart from Portland to Denver on average per week?

As of January 2026, there are 72 flights per week flying from Portland to Denver. The most common day of the week flights depart is Sun, with 17% of flights taking off on this day.

How often are flights from Portland to Denver delayed?

Historically, on average around 15% of flights between Portland and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 126 minutes.

How many flights depart from Portland to Denver on average per day?

10 flights are operational daily from Portland to Denver as of January 2026. The most popular departure time for this route is 8:00AM, with 47% of flights per day taking off at noon.

What is the most punctual flight time for Portland to Denver flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on Portland to Denver flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

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?

There are 6 operators available for flights from Portland Airport to Denver Intl Airport as of January 2026.

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.

$56 Cheap Flights from Portland to Denver in 2026

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:58 am - 3:36 pm

PDX

DEN

2h 38mnonstop

9:10 am - 11:03 am

DEN

PDX

2h 53mnonstop

$121Frontier

vie., abr. 10 - lun., abr. 13

9:53 am - 9:40 pm

PDX

DEN

10h 47m

1 stop

9:10 am - 11:09 am

DEN

PDX

2h 59mnonstop

$122Frontier

mié., mar. 11 - lun., mar. 16

12:04 pm - 3:41 pm

PDX

DEN

2h 37mnonstop

10:40 pm - 8:58 am

DEN

PDX

11h 18m

1 stop

$123Frontier

lun., mar. 9 - mar., mar. 17

7:05 am - 10:42 am

PDX

DEN

2h 37mnonstop

9:10 am - 11:09 am

DEN

PDX

2h 59mnonstop

$124Multiple Airlines

mar., mar. 10 - vie., mar. 13

10:08 am - 9:44 am

PDX

DEN

22h 36m

1 stop

9:10 am - 11:09 am

DEN

PDX

2h 59mnonstop

$126Frontier

vie., mar. 6 - lun., mar. 9

11:48 am - 3:26 pm

PDX

DEN

2h 38mnonstop

9:10 am - 11:03 am

DEN

PDX

2h 53mnonstop

$127Frontier

dom., abr. 26 - lun., may. 4

12:27 pm - 4:07 pm

PDX

DEN

2h 40mnonstop

7:00 am - 11:57 am

DEN

PDX

5h 57m

1 stop

$128Frontier

sáb., may. 9 - lun., may. 11

7:05 am - 10:42 am

PDX

DEN

2h 37mnonstop

6:03 pm - 7:52 pm

DEN

PDX

2h 49mnonstop

$129Hawaiian Airlines

mié., mar. 11 - mié., mar. 18

3:52 pm - 9:23 pm

PDX

DEN

4h 31m

1 stop

9:10 am - 11:09 am

DEN

PDX

2h 59mnonstop

$130Multiple Airlines

mié., mar. 11 - vie., mar. 13

11:48 am - 3:26 pm

PDX

DEN

2h 38mnonstop

9:10 am - 11:03 am

DEN

PDX

2h 53mnonstop

$131Frontier

vie., may. 1 - dom., may. 3

Frontier flights from Portland to Denver

Our best Frontier deals on Portland to Denver flight tickets

Frontier

Apr 10

PDX11:58 amPortland

2h 38m

DEN3:36 pmDenver Intl

Apr 13

DEN9:10 amDenver Intl

2h 53m

PDX11:03 amPortland

$121

Frontier

Mar 11

PDX9:53 amPortland

10h 47m

1 stop

DEN9:40 pmDenver Intl

Mar 16

DEN9:10 amDenver Intl

2h 59m

PDX11:09 amPortland

$122

Frontier

Mar 9

PDX12:04 pmPortland

2h 37m

DEN3:41 pmDenver Intl

Mar 17

DEN10:40 pmDenver Intl

11h 18m

1 stop

PDX8:58 amPortland

$123

Delta flights from Portland to Denver

Our best Delta deals on Portland to Denver flight tickets

Delta

Feb 21

PDX1:32 pmPortland

6h 34m

1 stop

DEN9:06 pmDenver Intl

Feb 24

DEN6:20 pmDenver Intl

6h 33m

1 stop

PDX11:53 pmPortland

$157

Delta

Feb 19

PDX5:45 amPortland

5h 15m

1 stop

DEN12:00 pmDenver Intl

Mar 3

DEN6:20 pmDenver Intl

6h 33m

1 stop

PDX11:53 pmPortland

$167

Delta

Feb 8

PDX5:50 amPortland

5h 01m

1 stop

DEN11:51 amDenver Intl

Feb 14

DEN5:30 amDenver Intl

4h 45m

1 stop

PDX9:15 amPortland

$237

Fly from

Fly to

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 4/10

11:58 am-3:36 pm

Nonstop2h 38m

Denver Intl

lun. 4/13

9:10 am-11:03 am

Nonstop2h 53m

$121

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 3/11

9:53 am-9:40 pm

1 stop10h 47m

Denver Intl

lun. 3/16

9:10 am-11:09 am

Nonstop2h 59m

$122

PortlandDenver

PDX - DEN

PDXDEN

Portland

lun. 3/9

12:04 pm-3:41 pm

Nonstop2h 37m

Denver Intl

mar. 3/17

10:40 pm-8:58 am

1 stop11h 18m

$123

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 3/10

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

vie. 3/13

9:10 am-11:09 am

Nonstop2h 59m

$124

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 3/6

10:08 am-9:44 am

1 stop22h 36m

Denver Intl

lun. 3/9

9:10 am-11:09 am

Nonstop2h 59m

$126

PortlandDenver

PDX - DEN

PDXDEN

Portland

dom. 4/26

11:48 am-3:26 pm

Nonstop2h 38m

Denver Intl

lun. 5/4

9:10 am-11:03 am

Nonstop2h 53m

$127

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 5/9

12:27 pm-4:07 pm

Nonstop2h 40m

Denver Intl

lun. 5/11

7:00 am-11:57 am

1 stop5h 57m

$128

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 3/11

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

mié. 3/18

6:03 pm-7:52 pm

Nonstop2h 49m

$129

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 3/11

3:52 pm-9:23 pm

1 stop4h 31m

Denver Intl

vie. 3/13

9:10 am-11:09 am

Nonstop2h 59m

$130

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 5/1

11:48 am-3:26 pm

Nonstop2h 38m

Denver Intl

dom. 5/3

9:10 am-11:03 am

Nonstop2h 53m

$131

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Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Portland is in August. Flight prices, which tend to average around $169, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until January to fly from Portland, when ticket prices are also cheap, with an average price of $180.

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 $317. 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 $383.

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 $367.

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 $207 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 $162 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 January 2026, prices for Portland to Denver flights are approximately 26% 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	$154
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 $154. The best round-trip flight deal from Portland to Denver found on momondo in the last 72 hours is $257.

The fastest flight from Portland to Denver takes 2h 25m

Direct flights go from Portland to Denver every day.

There is 1 airport in Denver. From Portland there are direct flights to 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?
There are 6 operators available for flights from Portland Airport to Denver Intl Airport as of January 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Portland to Denver is Boeing 737 MAX 8, representing 19.24% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 16.62%, Boeing 737 MAX 9 at 13.08%, and Boeing 737-900 at 12.63%.
What is the most popular airline from Portland to Denver?
momondo data reveals that the most frequently booked airline on the route from Portland to Denver is Frontier, representing 46% of all bookings. The subsequent popular airlines are United Airlines at 25%, Alaska Airlines at 13%, and Southwest at 12%.

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
Frontier	PriceFrom $56	Free Cancellation	Rating 5.7 3,057 reviews	Search Frontier flights
Delta	PriceFrom $88	Free Cancellation	Rating 7.9 8,113 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $88	Free Cancellation	Rating 7.8 2,829 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $138	Free Cancellation	Rating 7.4 9,198 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $147	Free Cancellation	Rating 8.0 11,791 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $153	Free Cancellation	Rating 8.0 4,268 reviews	Search Southwest flights

Alaska Airlines Flights From Portland to Denver
Alaska Airlines flight deals from Portland to Denver start from $147 round-trip. Over the 5 Alaska Airlines flights for this route in a normal week, average airfare is usually $260 round-trip - but some users have found much cheaper deals with momondo.
Southwest Flights From Portland to Denver
Southwest (8.0/10 from 4,268 reviews) operates around 21 flights from Portland to Denver in any given week. The average Southwest airfare for this route is around $259, with deals from around $153 rare but found on momondo. Referenced prices are for round-trip Portland to Denver flight searches in the last 72 hours.

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Manitou Springs

Longmont

Cripple Creek

Boulder

Keystone

Greeley

Lakewood

Westminster

Thornton

Frisco

Winter Park

Copper Mountain

Centennial

Grand Lake

Englewood

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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Cheap flights from Portland to Denver from $69

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 2/21. 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

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Frontier flights from Portland to Denver

Our best Frontier deals on Portland to Denver flight tickets

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Our best Delta deals on Portland to Denver flight tickets

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How to get the cheapest flight ticket from Portland to Denver

What is the cheapest month to fly to Denver?

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 $317. 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 $383.

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 $367.

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?

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 January 2026, prices for Portland to Denver flights are approximately 26% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Portland to Denver Intl?

United Airlines and Alaska Airlines are the most popular carriers operating from Portland to Denver Intl

What airlines fly to Denver?

How often are flights from Portland to Denver delayed?

Historically, on average around 15% of flights between Portland and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 126 minutes.

What is the most punctual flight time for Portland to Denver flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Portland to Denver flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

How many flights depart from Portland to Denver on average per day?

10 flights are operational daily from Portland to Denver as of January 2026. The most popular departure time for this route is 8:00AM, with 47% of flights per day taking off at noon.

How many flights depart from Portland to Denver on average per week?

As of January 2026, there are 72 flights per week flying from Portland to Denver. The most common day of the week flights depart is Sun, with 17% of flights taking off on this day.

When to book flights from Portland to Denver

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

Fastest flight time

Direct flights

Airports in Denver

How far is Portland to Denver Intl by plane?

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

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?

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

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

Alaska Airlines Flights From Portland to Denver

Southwest Flights From Portland to Denver

Traveling to a place near Denver?

Why use momondo?

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

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

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

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

An easier way to manage your Denver 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado