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$58+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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1. Tell us where you want to go
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Cheapflights Tip: The best prices from Portland to Denver Intl are usually found in September or October, booked 30 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Portland to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$116
(Frontier)

One-way from

$68
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$237

Good round-trip deal

$219 or less

Good one-way deal

$134 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
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One-way flight from Portland to Denver Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from Portland to Denver Intl.
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Price to beat on a one-way flight from Portland to Denver Intl.
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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 March 28, 2025.

This Frontier deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:20 amPDX - DEN
Nonstop2h 36mFrontier
Wed 4/3010:50 pmDEN - PDX
Nonstop2h 52mFrontier
Deal found 3/26$116
This Expedia deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:20 amPDX - DEN
Nonstop2h 38mMultiple Airlines
Mon 5/126:37 pmDEN - PDX
Nonstop2h 48mMultiple Airlines
Deal found 3/25$162
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/305:15 amPDX - DEN
1 stop6h 41mDelta
Tue 5/68:15 amDEN - PDX
1 stop5h 13mDelta
Deal found 3/25$177
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/231:45 pmPDX - DEN
1 stop7h 59mUnited Airlines
Wed 4/309:00 pmDEN - PDX
Nonstop2h 48mUnited Airlines
Deal found 3/26$183
This Hawaiian Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/155:20 pmPDX - DEN
1 stop5h 38mHawaiian Airlines
Tue 4/227:00 amDEN - PDX
1 stop7h 50mHawaiian Airlines
Deal found 3/25$186
This Alaska Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2210:35 amPDX - DEN
1 stop7h 22mAlaska Airlines
Tue 4/298:20 amDEN - PDX
Nonstop2h 42mAlaska Airlines
Deal found 3/26$187
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/235:20 amPDX - DEN
Nonstop2h 35mSouthwest
Tue 4/294:35 pmDEN - PDX
2 stops7h 30mSouthwest
Deal found 3/26$192
This Sun Country Air deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2611:59 pmPDX - DEN
1 stop9h 38mSun Country Air
Fri 7/410:14 amDEN - PDX
1 stop8h 32mSun Country Air
Deal found 3/26$265

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Portland to Denver that are best for you.

Fly from

Portland

Fly to

Denver

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 4/22

6:20 am-9:56 am

Nonstop2h 36m

Denver Intl

Wed 4/30

10:50 pm-12:42 am

Nonstop2h 52m

$116

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 5/10

6:20 am-9:58 am

Nonstop2h 38m

Denver Intl

Mon 5/12

6:37 pm-8:25 pm

Nonstop2h 48m

$162

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 4/30

5:15 am-12:56 pm

1 stop6h 41m

Denver Intl

Tue 5/6

8:15 am-12:28 pm

1 stop5h 13m

$177

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 4/23

1:45 pm-10:44 pm

1 stop7h 59m

Denver Intl

Wed 4/30

9:00 pm-10:48 pm

Nonstop2h 48m

$183

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 4/15

5:20 pm-11:58 pm

1 stop5h 38m

Denver Intl

Tue 4/22

7:00 am-1:50 pm

1 stop7h 50m

$186

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 4/22

10:35 am-6:57 pm

1 stop7h 22m

Denver Intl

Tue 4/29

8:20 am-10:02 am

Nonstop2h 42m

$187

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 4/23

6:45 am-12:15 pm

1 stop4h 30m

Denver Intl

Wed 4/30

3:25 pm-10:15 pm

1 stop7h 50m

$196

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 6/20

11:59 pm-4:07 pm

1 stop15h 08m

Denver Intl

Mon 6/23

10:09 am-10:46 pm

1 stop13h 37m

$304

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 4/22

6:20 am-9:56 am

Nonstop2h 36m

$58

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 5/14

1:21 pm-9:47 pm

1 stop7h 26m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 17 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars

*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.

The best insider tips for Portland to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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. First and business class tickets, elite status, and military personnel can access this lane.

Read more about PDXby Brandon Schultz
DEN

Take the A Line train from DEN to Union Station for a 37-minute ride. It runs every 15 minutes and is cost-effective.

Read more about DENby Emily Zemler
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Brandon Schultz

Brandon Schultz

Expert on PDX

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Denver. Price data was last updated on March 21, 2025.

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?

Find hourly flight availability from Portland to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 51% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Denver. Price data was last updated on March 23, 2025.

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

Weekly flight availability from Portland to Denver

Explore weekly flight availability from Portland to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2025.

The most flights from PDX to DEN are scheduled on a Thursday (15 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

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.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Portland to Denver have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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?

    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 25m for a nonstop flight. There are 8 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 285 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Cheapflights users have booked flights from Portland to Denver round-trip from $116. Other airlines that can offer you cheap pricing are Delta, from $177, and United Airlines, from $183. Users have found that Frontier is 36% 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 Frontier, with whom users have recently found tickets for as low as $68. However, be on the lookout for offers from United Airlines and Alaska 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 United Airlines (96%), Copa Airlines (95%) and Lufthansa (93%).

  • What are the cheapest flights from Portland to Denver?

    While on average a flight from Portland to Denver is generally $1,336, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $134 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Westminster
Lakewood
Black Hawk
Winter Park
Broomfield
Cripple Creek
Silverthorne
Golden
Brighton
Greeley
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Portland to Denver

Discover the top 6 airlines that operate flights from Portland to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$116FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$88Average$247FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$141Average$260FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$148Average$313FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$156Average$234FlexibilityNo cancel feeOn-time63%
DeltaCheapest$176Average$281FlexibilityNo cancel feeOn-timeN/A
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