How often are flights from Portland to Denver delayed?

About 14% of weekly flights between Portland and Denver have experienced delays in the past year, with the average delay time being 127 minutes.

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

Over the last year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.

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

Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

How popular is this Portland to Denver flight route?

This flight path from Portland to Denver Intl was viewed by 203 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 34m. Alaska Airlines provides one of the quickest options available for as low as $147. There are 989 mi between Portland and Denver. Generally, flights for this route are nonstop.

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 Delta, from $128. Users have found that Frontier is 71% cheaper than the other options available to this destination.

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

The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Portland to Denver for a low price.

Weekly flight availability from Portland to Denver

The most flights from PDX to DEN are scheduled on a Thursday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 $792, our data shows the cheapest flight currently is $69. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $98 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 SWISS (100%), United Airlines (91%) and Lufthansa (90%).

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 Frontier, United Airlines or Alaska Airlines 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Denver flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 28m 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.

$55+ Cheap Flights from Portland to Denver

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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 January or August, booked 29 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Portland to Denver

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$90 (Kiwi.com)
One-way from	$55 (Priceline)
Popular in	March
Cheapest in	January
Average price	$219
Good round-trip deal	$237 or less
Good one-way deal	$129 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

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 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 November 13, 2025.

Fri 12/198:45 pmPDX - DEN

1 stop11h 10mFrontier

Tue 12/309:43 amDEN - PDX

Nonstop3h 00mFrontier

Deal found 11/12

$90

Tue 12/3012:47 pmPDX - DEN

Nonstop2h 28mFrontier

Wed 1/710:29 pmDEN - PDX

1 stop14h 54mFrontier

Deal found 11/13

$92

Wed 12/37:10 amPDX - DEN

Nonstop2h 35mMultiple Airlines

Fri 12/59:56 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/12

$98

Thu 12/1112:51 pmPDX - DEN

Nonstop2h 28mFrontier

Thu 12/189:43 amDEN - PDX

Nonstop3h 00mFrontier

Deal found 11/11

$100

Mon 12/15:15 pmPDX - DEN

1 stop9h 43mFrontier

Fri 12/59:56 amDEN - PDX

Nonstop3h 00mFrontier

Deal found 11/11

$101

Fri 12/512:55 pmPDX - DEN

Nonstop2h 28mFrontier

Thu 12/117:33 amDEN - PDX

1 stop27h 01mFrontier

Deal found 11/13

$102

Tue 12/27:10 amPDX - DEN

Nonstop2h 35mMultiple Airlines

Fri 12/59:56 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/10

$103

Fri 12/512:55 pmPDX - DEN

Nonstop2h 28mMultiple Airlines

Tue 12/96:45 amDEN - PDX

1 stop6h 57mMultiple Airlines

Deal found 11/12

$107

Fri 12/512:55 pmPDX - DEN

Nonstop2h 28mMultiple Airlines

Mon 12/811:41 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/11

$108

Thu 12/1112:51 pmPDX - DEN

Nonstop2h 28mMultiple Airlines

Wed 12/1711:41 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/11

$109

Sat 11/222:30 pmPDX - DEN

Nonstop2h 35mFrontier

Fri 11/2810:29 pmDEN - PDX

1 stop16h 06mFrontier

Deal found 11/11

$112

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 November 13, 2025.

Sat 2/147:05 amPDX - DEN

Nonstop2h 37mAlaska Airlines

Tue 2/1711:38 amDEN - PDX

Nonstop3h 00mAlaska Airlines

Deal found 11/13

$137

Tue 2/35:00 amPDX - DEN

Nonstop2h 34mUnited Airlines

Fri 2/67:15 pmDEN - PDX

Nonstop2h 57mUnited Airlines

Deal found 11/10

$147

Tue 12/95:30 amPDX - DEN

1 stop4h 39mDelta

Tue 12/1612:05 pmDEN - PDX

1 stop7h 09mDelta

Deal found 11/11

$157

Sat 12/67:10 amPDX - DEN

Nonstop2h 35mAlaska Airlines

Tue 12/96:45 amDEN - PDX

1 stop5h 05mAlaska Airlines

Deal found 11/11

$147

Sat 12/65:30 amPDX - DEN

1 stop5h 02mDelta

Tue 12/95:30 amDEN - PDX

1 stop4h 40mDelta

Deal found 11/12

$157

Sat 2/145:05 amPDX - DEN

Nonstop2h 33mUnited Airlines

Tue 2/175:20 amDEN - PDX

1 stop8h 18mUnited Airlines

Deal found 11/12

$167

Fri 1/237:21 amPDX - DEN

Nonstop2h 32mAlaska Airlines

Sun 1/2511:49 amDEN - PDX

Nonstop2h 55mAlaska Airlines

Deal found 11/11

$157

Wed 12/315:15 pmPDX - DEN

1 stop5h 08mDelta

Wed 1/76:50 pmDEN - PDX

1 stop6h 27mDelta

Deal found 11/11

$157

Thu 1/87:21 amPDX - DEN

Nonstop2h 32mAlaska Airlines

Mon 1/1211:49 amDEN - PDX

Nonstop2h 55mAlaska Airlines

Deal found 11/13

$157

Wed 12/35:15 pmPDX - DEN

1 stop5h 06mDelta

Fri 12/126:22 pmDEN - PDX

1 stop6h 42mDelta

Deal found 11/11

$167

Fri 1/3010:34 amPDX - DEN

1 stop7h 07mAlaska Airlines

Mon 2/211:49 amDEN - PDX

Nonstop2h 55mAlaska Airlines

Deal found 11/11

$167

Wed 12/32:23 pmPDX - DEN

1 stop7h 58mDelta

Fri 12/56:05 amDEN - PDX

1 stop5h 50mDelta

Deal found 11/12

$167

Last-minute flights from Portland to Denver
Discover last-minute flight deals from Portland to Denver. Data last updated November 13, 2025 and is based on user searches.

Sat 11/222:30 pmPDX - DEN

Nonstop2h 35mFrontier

Fri 11/2810:29 pmDEN - PDX

1 stop16h 06mFrontier

Deal found 11/11

$112

Mon 12/15:15 pmPDX - DEN

1 stop9h 43mFrontier

Fri 12/59:56 amDEN - PDX

Nonstop3h 00mFrontier

Deal found 11/11

$101

Tue 12/27:10 amPDX - DEN

Nonstop2h 35mMultiple Airlines

Fri 12/59:56 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/10

$103

Wed 12/37:10 amPDX - DEN

Nonstop2h 35mMultiple Airlines

Fri 12/129:56 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/11

$98

Fri 12/512:55 pmPDX - DEN

Nonstop2h 28mFrontier

Thu 12/117:33 amDEN - PDX

1 stop27h 01mFrontier

Deal found 11/13

$102

Fri 12/512:55 pmPDX - DEN

Nonstop2h 28mMultiple Airlines

Tue 12/96:45 amDEN - PDX

1 stop6h 57mMultiple Airlines

Deal found 11/12

$107

Fri 12/512:55 pmPDX - DEN

Nonstop2h 28mMultiple Airlines

Mon 12/811:41 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/11

$108

Thu 12/1112:51 pmPDX - DEN

Nonstop2h 28mFrontier

Thu 12/189:43 amDEN - PDX

Nonstop3h 00mFrontier

Deal found 11/11

$100

Thu 12/1112:51 pmPDX - DEN

Nonstop2h 28mMultiple Airlines

Wed 12/1711:41 amDEN - PDX

Nonstop3h 00mMultiple Airlines

Deal found 11/11

$109

Fri 12/198:45 pmPDX - DEN

1 stop11h 10mFrontier

Tue 12/309:43 amDEN - PDX

Nonstop3h 00mFrontier

Deal found 11/12

$90

Tue 12/3012:47 pmPDX - DEN

Nonstop2h 28mFrontier

Wed 1/710:29 pmDEN - PDX

1 stop14h 54mFrontier

Deal found 11/13

$92

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 November 13, 2025.

Thu 1/2211:28 amPDX - DEN

1 stop7h 52mFrontier

Deal found 11/13

$55

Sun 1/1112:47 pmPDX - DEN

Nonstop2h 28mFrontier

Deal found 11/11

$58

Thu 12/252:29 pmPDX - DEN

1 stop12h 29mFrontier

Deal found 11/12

$59

Mon 12/159:31 amPDX - DEN

1 stop17h 27mFrontier

Deal found 11/12

$60

Sat 1/105:26 pmPDX - DEN

1 stop9h 32mFrontier

Deal found 11/13

$61

Thu 12/1111:14 amPDX - DEN

1 stop5h 54mFrontier

Deal found 11/12

$63

Thu 1/112:39 pmPDX - DEN

1 stop20h 27mFrontier

Deal found 11/12

$67

Tue 12/95:00 amPDX - DEN

Nonstop2h 31mUnited Airlines

Deal found 11/10

$69

Wed 12/243:59 pmPDX - DEN

1 stop15h 56mFrontier

Deal found 11/12

$70

Thu 12/182:29 pmPDX - DEN

1 stop8h 04mFrontier

Deal found 11/11

$71

Thu 1/81:18 pmPDX - DEN

1 stop6h 02mFrontier

Deal found 11/12

$72

Fly from

Fly to

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 2/14

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

Tue 2/17

11:38 am-1:38 pm

Nonstop3h 00m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 2/3

5:00 am-8:34 am

Nonstop2h 34m

Denver Intl

Fri 2/6

7:15 pm-9:12 pm

Nonstop2h 57m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 12/6

7:10 am-10:45 am

Nonstop2h 35m

Denver Intl

Tue 12/9

6:45 am-10:50 am

1 stop5h 05m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 12/9

5:30 am-11:09 am

1 stop4h 39m

Denver Intl

Tue 12/16

12:05 pm-6:14 pm

1 stop7h 09m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 12/6

5:30 am-11:32 am

1 stop5h 02m

Denver Intl

Tue 12/9

5:30 am-9:10 am

1 stop4h 40m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 1/23

7:21 am-10:53 am

Nonstop2h 32m

Denver Intl

Sun 1/25

11:49 am-1:44 pm

Nonstop2h 55m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 12/31

5:15 pm-11:23 pm

1 stop5h 08m

Denver Intl

Wed 1/7

6:50 pm-12:17 am

1 stop6h 27m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 1/8

7:21 am-10:53 am

Nonstop2h 32m

Denver Intl

Mon 1/12

11:49 am-1:44 pm

Nonstop2h 55m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 2/14

5:05 am-8:38 am

Nonstop2h 33m

Denver Intl

Tue 2/17

5:20 am-12:38 pm

1 stop8h 18m

$167

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 12/3

5:15 pm-11:21 pm

1 stop5h 06m

Denver Intl

Fri 12/12

6:22 pm-12:04 am

1 stop6h 42m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 24 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 November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
CheapTicketsDeal	Price Accuracy3 stars	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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Denver flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

Delays

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

The best time to book flights from Portland to Denver is 29 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, February is the cheapest month in which you can book a flight from Portland to Denver (average of $38). Flying from Portland to Denver in July is currently the most expensive (average of $98). 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 21% 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 Saturday 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.

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.

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.

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

11,281 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

11,281 reviews

Alaska Airlines

8.0

Very good

11,281 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

4,236 reviews

Alaska Airlines

8.0

Very good

11,281 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

2,809 reviews

Alaska Airlines

8.0

Very good

11,281 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

9,015 reviews

Alaska Airlines

8.0

Very good

11,281 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

3,113 reviews

Alaska Airlines

8.0

Very good

11,281 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 28m 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 203 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 34m. Alaska Airlines provides one of the quickest options available for as low as $147. There are 989 mi between Portland and Denver. Generally, flights for this route are nonstop.
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 Delta, from $128. Users have found that Frontier is 71% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Portland to Denver one-way?
The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Portland to Denver for a low price.
What are the most reliable airlines from Portland to Denver?
The top 3 most reliable airlines when flying from Portland to Denver are SWISS (100%), United Airlines (91%) and Lufthansa (90%).
What are the cheapest flights from Portland to Denver?
While on average a flight from Portland to Denver is generally $792, our data shows the cheapest flight currently is $69. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $98 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, February is the cheapest month in which you can book a flight from Portland to Denver (average of $38). Flying from Portland to Denver in July is currently the most expensive (average of $98). 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$148	FlexibilityNo cancel fee	On-time62%
Hawaiian Airlines	Cheapest$98	Average$234	FlexibilityNo cancel fee	On-time85%
Delta	Cheapest$128	Average$287	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$157	Average$251	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$158	Average$295	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$165	Average$267	FlexibilityNo cancel fee	On-time75%

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$55+ 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 1/22. 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

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3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Denver Intl are usually found in January or August, booked 29 days in advance, depart on a Friday or Thursday and return on a Saturday

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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 November 13, 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 November 13, 2025.

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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 November.

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?

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

Weekly flight availability from Portland to Denver

How often are flights from Portland to Denver delayed?

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

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

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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.

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

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

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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?

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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 November 13, 2025.