How popular is this Portland to Denver flight route?

This flight path from Portland to Denver Intl was viewed by 223 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How long is the flight from Portland to Denver?

A quick flight from Portland to Denver can take about 2h 35m. Alaska Airlines provides one of the quickest options available for as low as $157. There are 989 mi between Portland and Denver. Both multi-stop and nonstop flights can be found to your destination and back.

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

Cheapflights users have booked flights from Portland to Denver round-trip from $58. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $98, and Southwest, from $157. Users have found that Frontier is 70% cheaper than the other options available to this destination.

Weekly flight availability from Portland to Denver

The most flights from PDX to DEN are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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.

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).

What are the cheapest flights from Portland to Denver?

While on average a flight from Portland to Denver is generally $706, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $105 for that flight.

What are the most reliable airlines from Portland to Denver?

The top 3 most reliable airlines when flying from Portland to Denver are United Airlines (86%), SWISS (86%) and Lufthansa (84%).

What are the most popular airlines that fly from Portland to Denver?

When booking a flight from Portland to Denver, you may want to consider flying on Alaska Airlines, Delta or Frontier as they are the most popular for this route.

Most accurate provider : When it comes to deals on Portland-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Denver flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Portland-Denver 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 Portland-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airports do I use to fly from Portland to Denver?

If you book a flight from Portland to Denver, you will be flying from Portland to Denver Intl. Flights to Denver Intl (DEN) from Portland (PDX) take 2h 23m for a nonstop flight. There are 12 flights from Portland to Denver per day from 6 airlines.

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.

$66+ Cheap Flights from Portland to Denver

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Portland to Denver 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 Portland to Denver Intl are usually found in October or August, booked 30 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Portland to Denver

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$93 (Frontier)
One-way from	$66 (Cheapflightsfares)
Popular in	March
Cheapest in	October
Average price	$165
Good round-trip deal	$220 or less
Good one-way deal	$127 or less

Provider with most accurate pricing for Portland-Denver Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Denver Intl flights.

Search Deals

From Portland to Denver Intl

Search Deals

One-way flight from Portland to Denver Intl

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from Portland to Denver Intl.

Search Deals

Price to beat on a one-way flight from Portland to Denver Intl.

Search Deals

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 October 2, 2025.

Tue 10/2812:52 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 11/310:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 10/2

$93

Wed 10/1512:43 pmPDX - DEN

Nonstop2h 43mFrontier

Sat 10/189:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$94

Thu 10/2312:43 pmPDX - DEN

Nonstop2h 43mFrontier

Sat 10/259:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$96

Sat 10/2512:43 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 10/279:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$97

Wed 10/2212:43 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 10/279:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 10/1

$98

Tue 12/3012:52 pmPDX - DEN

Nonstop2h 28mFrontier

Sat 1/310:00 amDEN - PDX

Nonstop2h 57mFrontier

Deal found 10/2

$99

Fri 10/313:26 pmPDX - DEN

Nonstop2h 41mFrontier

Tue 11/410:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 10/2

$100

Thu 10/2312:43 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 10/279:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$101

Thu 10/3012:52 pmPDX - DEN

Nonstop2h 43mFrontier

Sat 11/110:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 10/2

$105

Wed 10/1512:43 pmPDX - DEN

Nonstop2h 43mFrontier

Sun 10/199:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$106

Best flights from Portland to Denver
Discover carefully curated flight deals from Portland to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 2, 2025.

Sat 11/17:00 amPDX - DEN

Nonstop2h 35mAlaska Airlines

Wed 11/511:31 amDEN - PDX

Nonstop2h 53mAlaska Airlines

Deal found 9/30

$157

Wed 11/512:05 pmPDX - DEN

1 stop4h 55mSouthwest

Tue 11/118:00 amDEN - PDX

1 stop6h 55mSouthwest

Deal found 9/30

$176

Wed 10/225:40 amPDX - DEN

1 stop5h 07mDelta

Sat 10/255:30 amDEN - PDX

1 stop4h 33mDelta

Deal found 9/29

$177

Wed 10/295:30 pmPDX - DEN

1 stop5h 29mAlaska Airlines

Wed 11/511:31 amDEN - PDX

Nonstop2h 53mAlaska Airlines

Deal found 9/30

$167

Wed 11/125:30 amPDX - DEN

1 stop4h 58mDelta

Sat 11/155:20 amDEN - PDX

1 stop4h 44mDelta

Deal found 10/1

$177

Thu 2/197:00 amPDX - DEN

Nonstop2h 32mAlaska Airlines

Sat 2/2111:30 amDEN - PDX

Nonstop2h 44mAlaska Airlines

Deal found 10/2

$177

Tue 1/67:00 amPDX - DEN

Nonstop2h 35mAlaska Airlines

Sun 1/1111:49 amDEN - PDX

Nonstop2h 56mAlaska Airlines

Deal found 9/29

$177

Sat 2/147:00 amPDX - DEN

Nonstop2h 32mAlaska Airlines

Tue 2/175:15 pmDEN - PDX

1 stop7h 48mAlaska Airlines

Deal found 10/1

$187

Thu 1/87:21 amPDX - DEN

Nonstop2h 32mAlaska Airlines

Sat 1/107:00 amDEN - PDX

1 stop6h 38mAlaska Airlines

Deal found 9/29

$187

Mon 11/171:38 pmPDX - DEN

1 stop9h 21mAlaska Airlines

Wed 11/193:37 pmDEN - PDX

1 stop6h 00mAlaska Airlines

Deal found 10/1

$196

Last-minute flights from Portland to Denver
Discover last-minute flight deals from Portland to Denver. Data last updated October 2, 2025 and is based on user searches.

Wed 10/1512:43 pmPDX - DEN

Nonstop2h 43mFrontier

Sat 10/189:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$94

Wed 10/1512:43 pmPDX - DEN

Nonstop2h 43mFrontier

Sun 10/199:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$106

Wed 10/2212:43 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 10/279:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 10/2

$98

Thu 10/2312:43 pmPDX - DEN

Nonstop2h 43mFrontier

Sat 10/259:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$96

Thu 10/2312:43 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 10/279:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$101

Sat 10/2512:43 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 10/279:58 amDEN - PDX

Nonstop2h 50mFrontier

Deal found 9/30

$97

Tue 10/2812:52 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 11/310:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 10/2

$93

Thu 10/3012:52 pmPDX - DEN

Nonstop2h 43mFrontier

Sat 11/110:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 10/2

$105

Thu 10/3012:52 pmPDX - DEN

Nonstop2h 43mFrontier

Mon 11/310:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 9/30

$108

Fri 10/313:26 pmPDX - DEN

Nonstop2h 41mFrontier

Tue 11/410:05 amDEN - PDX

Nonstop2h 51mFrontier

Deal found 10/2

$100

One-way flights from Portland to Denver
Search for one-way flight options from Portland to Denver. Find affordable one-way fares based on user searches. Data last updated October 2, 2025.

Sun 12/73:14 pmPDX - DEN

Nonstop2h 34mFrontier

Deal found 10/1

$66

Sun 1/1112:47 pmPDX - DEN

Nonstop2h 28mFrontier

Deal found 9/30

$71

Mon 11/37:29 pmPDX - DEN

1 stop7h 30mFrontier

Deal found 9/30

$72

Sun 11/1612:51 pmPDX - DEN

1 stop20h 27mFrontier

Deal found 9/30

$77

Mon 10/209:52 pmPDX - DEN

1 stop10h 40mFrontier

Deal found 9/30

$78

Wed 12/317:00 amPDX - DEN

Nonstop2h 35mAlaska Airlines

Deal found 10/2

$79

Tue 2/105:35 pmPDX - DEN

1 stop5h 01mAlaska Airlines

Deal found 9/30

$80

Sat 2/710:30 amPDX - DEN

1 stop4h 43mHawaiian Airlines

Deal found 10/2

$81

Wed 2/45:35 pmPDX - DEN

1 stop5h 01mAlaska Airlines

Deal found 9/30

$82

Tue 2/35:35 pmPDX - DEN

1 stop5h 01mAlaska Airlines

Deal found 10/1

$83

Fri 10/107:30 pmPDX - DEN

1 stop14h 01mFrontier

Deal found 10/1

$84

Fri 10/1710:07 pmPDX - DEN

1 stop10h 55mFrontier

Deal found 10/2

$85

Fly from

Fly to

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 11/1

7:00 am-10:35 am

Nonstop2h 35m

Denver Intl

Wed 11/5

11:31 am-1:24 pm

Nonstop2h 53m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 10/29

5:30 pm-11:59 pm

1 stop5h 29m

Denver Intl

Wed 11/5

11:31 am-1:24 pm

Nonstop2h 53m

$167

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 11/5

12:05 pm-6:00 pm

1 stop4h 55m

Denver Intl

Tue 11/11

8:00 am-1:55 pm

1 stop6h 55m

$176

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 10/22

5:40 am-11:47 am

1 stop5h 07m

Denver Intl

Sat 10/25

5:30 am-9:03 am

1 stop4h 33m

$177

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 11/12

5:30 am-11:28 am

1 stop4h 58m

Denver Intl

Sat 11/15

5:20 am-9:04 am

1 stop4h 44m

$177

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 2/19

7:00 am-10:32 am

Nonstop2h 32m

Denver Intl

Sat 2/21

11:30 am-1:14 pm

Nonstop2h 44m

$177

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 1/6

7:00 am-10:35 am

Nonstop2h 35m

Denver Intl

Sun 1/11

11:49 am-1:45 pm

Nonstop2h 56m

$177

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 2/14

7:00 am-10:32 am

Nonstop2h 32m

Denver Intl

Tue 2/17

5:15 pm-12:03 am

1 stop7h 48m

$187

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 1/8

7:21 am-10:53 am

Nonstop2h 32m

Denver Intl

Sat 1/10

7:00 am-12:38 pm

1 stop6h 38m

$187

PortlandDenver

PDX - DEN

PDXDEN

Portland

Mon 11/17

1:38 pm-11:59 pm

1 stop9h 21m

Denver Intl

Wed 11/19

3:37 pm-8:37 pm

1 stop6h 00m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Showing 1-10 of 18 results

Compare providers for flights from Portland to Denver

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Denver in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy2 stars	Trust Score*1 star
JustAirTicket	Price Accuracy-	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*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 Portland-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Denver flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland-Denver 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 Portland-Denver 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 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

Prices

Airlines

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

The best time to book flights from Portland to Denver is 30 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Portland to Denver?

Currently, October is the cheapest month in which you can book a flight from Portland to Denver (average of $197). Flying from Portland 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 PDX to DEN?

A simple way to save on the total cost of your ticket is to fly from Portland to Denver in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight at noon.

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

Travelers seeking maximum savings on their Portland to Denver flight should consider departing on Thursday afternoons 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.

The best insider tips for Portland to Denver flights

Cheapflights partnered with top experts to bring you the best recommendations for your Portland to Denver trip

Airlines

Frontier

Frontier offers extra comfort seats with 32” separation for a fee, enhancing travel comfort.

Frontier's Zone 1 boarding available with carry-on purchase or special fare bundle.

Read more about Frontierby Marisa Garcia

United Airlines

United's Economy Plus offers extra legroom seats towards the front of the economy cabin.

United's MileagePlus program allows pooling miles, useful for family travel.

Read more about United Airlinesby Harriet Baskas

Airports

PDX

PDX offers Express Lanes for expedited security, available to first and business class ticket holders and elite status members of major airlines.

DEN

Take the A Line train from DEN to Union Station in 37 minutes, running every 15 minutes for convenient city access.

Our travel experts

Marisa Garcia

Expert on Frontier

Harriet Baskas

Expert on United Airlines

Brandon Schultz

Expert on PDX

Emily Zemler

Expert on DEN

Reviews of airlines servicing Denver

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Hawaiian Airlines from Portland to Denver 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.

Alaska Airlines

8.0

Very good

10,994 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Alaska Airlines

8.0

Very good

10,994 reviews

Alaska Airlines

8.0

Very good

10,994 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Southwest

8.0

Very good

4,248 reviews

Alaska Airlines

8.0

Very good

10,994 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Hawaiian Airlines

7.8

Good

2,762 reviews

Alaska Airlines

8.0

Very good

10,994 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

United Airlines

7.4

Good

8,933 reviews

Alaska Airlines

8.0

Very good

10,994 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Frontier

5.8

Fair

3,155 reviews

Alaska Airlines

8.0

Very good

10,994 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

What airports do I use to fly from Portland to Denver?
If you book a flight from Portland to Denver, you will be flying from Portland to Denver Intl. Flights to Denver Intl (DEN) from Portland (PDX) take 2h 23m for a nonstop flight. There are 12 flights from Portland to Denver per day from 6 airlines.
How popular is this Portland to Denver flight route?
This flight path from Portland to Denver Intl was viewed by 223 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Portland to Denver?
A quick flight from Portland to Denver can take about 2h 35m. Alaska Airlines provides one of the quickest options available for as low as $157. There are 989 mi between Portland and Denver. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Portland to Denver round-trip?
Cheapflights users have booked flights from Portland to Denver round-trip from $58. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $98, and Southwest, from $157. Users have found that Frontier is 70% cheaper than the other options available to this destination.
What are the most reliable airlines from Portland to Denver?
The top 3 most reliable airlines when flying from Portland to Denver are United Airlines (86%), SWISS (86%) and Lufthansa (84%).
What are the cheapest flights from Portland to Denver?
While on average a flight from Portland to Denver is generally $706, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $105 for that flight.
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 to Denver?
Currently, October is the cheapest month in which you can book a flight from Portland to Denver (average of $197). Flying from Portland 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

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Other flights to Denver

Top 6 airlines flying from Portland to Denver

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$58	Average$146	FlexibilityNo cancel fee	On-time62%
Hawaiian Airlines	Cheapest$98	Average$234	FlexibilityNo cancel fee	On-time85%
Southwest	Cheapest$157	Average$250	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$159	Average$296	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$170	Average$265	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$196	Average$287	FlexibilityNo cancel fee	On-timeN/A

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$66+ Cheap flights from Portland to Denver (PDX - 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Denver with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Denver Intl are usually found in October or August, booked 30 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Portland to Denver

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Portland to Denver

Cheapest flights from Portland to DenverExplore 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 October 2, 2025.

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 October 2, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Portland to Denver

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 Portland to Denver in October.

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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Denver

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

What is the cheapest month to book a flight from Portland to Denver?

What is the cheapest time of day to fly from PDX to DEN?

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

Weekly flight availability from Portland to Denver

The best insider tips for Portland to Denver flights

Cheapflights partnered with top experts to bring you the best recommendations for your Portland to Denver trip

Airlines

Frontier

United Airlines

Airports

PDX

DEN

Our travel experts

Reviews of airlines servicing Denver

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Hawaiian Airlines from Portland to Denver 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.

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?

How popular is this Portland to Denver flight route?

How long is the flight from Portland to Denver?

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

What are the most reliable airlines from Portland to Denver?

What are the cheapest flights from Portland to Denver?

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

How can I find direct flights from Portland to Denver?

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

What is the cheapest month to book a flight from Portland to Denver?

Traveling to a place near Denver?

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Alternative routes for Portland to Denver

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Top 6 airlines flying from Portland to Denver

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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 October 2, 2025.