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$78+ 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 Saturday 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 June 12, 2025.

Round-trip from

$130
(Cheapflightsfares)

One-way from

$79
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$218

Good round-trip deal

$210 or less

Good one-way deal

$137 or less
From Portland to Denver Intl
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One-way flight from Portland to Denver Intl
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Highest demand for flights based on searches. 5% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:01 pmPDX - DEN
Nonstop2h 41mFrontier
Sun 8/1710:30 pmDEN - PDX
Nonstop2h 46mFrontier
Deal found 6/11$130
This Delta deal was found by Cheapflights users on 6/10. 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 9/35:30 amPDX - DEN
1 stop4h 25mDelta
Sat 9/136:25 pmDEN - PDX
1 stop5h 23mDelta
Deal found 6/10$177
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/31:24 pmPDX - DEN
1 stop6h 03mAlaska Airlines
Tue 9/1611:40 amDEN - PDX
Nonstop2h 43mAlaska Airlines
Deal found 6/10$187
This Southwest deal was found by Cheapflights users on 6/10. 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 6/255:00 amPDX - DEN
1 stop4h 50mSouthwest
Wed 7/97:30 pmDEN - PDX
1 stop5h 20mSouthwest
Deal found 6/10$266
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 11/205:30 pmPDX - DEN
1 stop5h 29mHawaiian Airlines
Mon 11/246:59 pmDEN - PDX
Nonstop2h 44mHawaiian Airlines
Deal found 6/12$277

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 June 12, 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 8/12

7:01 pm-10:42 pm

Nonstop2h 41m

Denver Intl

Sun 8/17

10:30 pm-12:16 am

Nonstop2h 46m

$130

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 9/3

5:30 am-10:55 am

1 stop4h 25m

Denver Intl

Sat 9/13

6:25 pm-10:48 pm

1 stop5h 23m

$177

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 9/3

1:24 pm-8:27 pm

1 stop6h 03m

Denver Intl

Tue 9/16

11:40 am-1:23 pm

Nonstop2h 43m

$187

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 6/25

5:00 am-10:50 am

1 stop4h 50m

Denver Intl

Wed 7/9

7:30 pm-11:50 pm

1 stop5h 20m

$266

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 11/20

2:30 pm-6:08 pm

Nonstop2h 38m

Denver Intl

Mon 11/24

6:59 pm-8:43 pm

Nonstop2h 44m

$267

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 7/9

10:23 am-6:12 pm

2 stops30h 49m

Denver Intl

Sat 7/12

1:50 pm-9:44 am

2 stops20h 54m

$324

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 11/8

7:00 am-10:31 am

Nonstop2h 31m

$78

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 8/13

6:43 pm-10:15 pm

Nonstop2h 32m

$79

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 11/4

5:30 pm-11:59 pm

1 stop5h 29m

$83

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 7/12

5:10 am-8:40 am

Nonstop2h 30m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 16 results
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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, available to first and business class ticket holders and elite status members of major airlines.

Read more about PDXby Brandon Schultz
DEN

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

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 June 9, 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 June 12, 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 46% 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 June 8, 2025.

Travelers seeking maximum savings on their Portland to Denver flight should consider departing on Thursday 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 June 12, 2025.

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 (6 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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 15 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 235 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 $130. Other airlines that can offer you cheap pricing are Delta, from $177, and Alaska Airlines, from $187. Users have found that Frontier is 31% 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 United Airlines, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from Frontier and Delta, 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 Lufthansa (85%), United Airlines (85%) and Alaska Airlines (75%).

  • What are the cheapest flights from Portland to Denver?

    While on average a flight from Portland to Denver is generally $684, our data shows the cheapest flight currently is $70. When looking at the most popular route, (Portland - Denver Intl), you can expect to pay $143 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
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Greeley
Limon

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$127FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$98Average$241FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$153Average$304FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$158Average$246FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$164Average$261FlexibilityNo cancel feeOn-time75%
DeltaCheapest$176Average$266FlexibilityNo cancel feeOn-timeN/A

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