Colorado

$52+ Cheap flights from Portland (PDX) to Colorado

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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
feb. 6 — feb. 131
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Cheap flight deals from Portland to Colorado

Keep the following information in mind while searching for Portland to Colorado flight deals. Data was last updated enero 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$117
(Cheapflightsfares)

One-way from

$52
(Frontier)

Popular in

December

Cheapest in

January

Average price

$168

Good round-trip deal

$272 or less

Good one-way deal

$158 or less
Provider with most accurate pricing for Portland-Denver Intl flight deals.
Provider most trusted by Cheapflights users for Portland-Denver Intl flights.
From Portland to Colorado
One-way flight from Portland to Colorado
Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Portland to Colorado.
Price to beat on a one-way flight from Portland to Colorado.

Find flight deals from Portland to Colorado

Cheapest flights from Portland to Colorado
Explore the most affordable flight options available from Portland to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 7, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/7. 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.
jue. 3/2612:04 pmPDX - DEN
Nonstop2h 37mFrontier
dom. 3/299:10 amDEN - PDX
Nonstop2h 59mFrontier
Deal found 1/7$117
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/912:04 pmPDX - DEN
Nonstop2h 37mFrontier
mié. 3/1110:30 pmDEN - PDX
1 stop11h 28mFrontier
Deal found 1/5$118
This Alaska Airlines deal was found by Cheapflights users on 1/5. 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.
jue. 1/297:21 amPDX - DEN
Nonstop2h 32mAlaska Airlines
jue. 2/511:49 amDEN - PDX
Nonstop2h 55mAlaska Airlines
Deal found 1/5$119
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/1212:04 pmPDX - DEN
Nonstop2h 37mFrontier
mar. 3/1710:40 pmDEN - PDX
1 stop11h 18mFrontier
Deal found 1/5$121
This Travelocity deal was found by Cheapflights users on 1/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/1212:04 pmPDX - DEN
Nonstop2h 37mMultiple Airlines
mié. 3/186:03 pmDEN - PDX
Nonstop2h 49mMultiple Airlines
Deal found 1/6$123
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/129:53 amPDX - DEN
2 stops10h 47mFrontier
lun. 3/169:10 amDEN - PDX
Nonstop2h 59mFrontier
Deal found 1/6$125
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/68:53 amPDX - DEN
2 stops14h 54mFrontier
jue. 3/129:10 amDEN - PDX
Nonstop2h 59mFrontier
Deal found 1/6$126
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/133:52 pmPDX - DEN
1 stop7h 07mMultiple Airlines
lun. 3/169:10 amDEN - PDX
Nonstop2h 59mMultiple Airlines
Deal found 1/6$128
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/29:22 pmPDX - DEN
1 stop12h 10mFrontier
vie. 2/66:05 amDEN - PDX
1 stop15h 22mFrontier
Deal found 1/6$131
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/1312:04 pmPDX - DEN
Nonstop2h 37mFrontier
mar. 3/172:30 pmDEN - PDX
2 stops19h 28mFrontier
Deal found 1/6$132
This Delta deal was found by Cheapflights users on 1/6. 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.
sáb. 1/315:50 amPDX - COS
1 stop4h 27mDelta
mié. 2/412:03 pmCOS - PDX
1 stop5h 00mDelta
Deal found 1/6$157
This Delta deal was found by Cheapflights users on 1/7. 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.
vie. 1/305:50 amPDX - COS
1 stop4h 27mDelta
sáb. 1/3112:00 pmCOS - PDX
1 stop5h 03mDelta
Deal found 1/7$167

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Colorado 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 enero 7, 2026.
Use the filters below to find and compare flights from Portland to Colorado that are best for you.

Fly from

Portland

Fly to

Colorado

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 2/17

5:05 am-8:38 am

Nonstop2h 33m

Denver Intl

sáb. 2/21

7:48 am-9:42 am

Nonstop2h 54m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 2/14

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

mar. 2/17

11:38 am-1:38 pm

Nonstop3h 00m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 2/18

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

jue. 2/19

11:38 am-1:38 pm

Nonstop3h 00m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 2/20

6:57 pm-10:30 pm

Nonstop2h 33m

Denver Intl

lun. 2/23

7:48 am-9:42 am

Nonstop2h 54m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 2/14

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

vie. 2/20

11:38 am-1:38 pm

Nonstop3h 00m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 2/25

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

sáb. 2/28

7:00 am-10:46 am

1 stop4h 46m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 3/14

3:52 pm-11:59 pm

1 stop7h 07m

Denver Intl

mar. 3/17

11:38 am-1:38 pm

Nonstop3h 00m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 1/27

6:45 am-1:35 pm

1 stop5h 50m

Denver Intl

jue. 1/29

8:40 am-10:35 am

Nonstop2h 55m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 2/3

5:35 pm-11:35 pm

1 stop5h 00m

Denver Intl

mar. 2/10

7:00 am-12:38 pm

1 stop6h 38m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 1/30

5:35 pm-11:35 pm

1 stop5h 00m

Denver Intl

lun. 2/2

11:49 am-1:44 pm

Nonstop2h 55m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 60 results
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Best time to book a flight from Portland to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado 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 Colorado

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

Currently, February is the cheapest month in which you can book a flight from Portland to Colorado (average of $39). Flying from Portland to Colorado 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 CO?

Find hourly flight availability from Portland to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 7, 2026.

One of the essential ways to save on airfare from Portland to Colorado is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 13% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Colorado. Price data was last updated on January 3, 2026.

Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Colorado

Explore weekly flight availability from Portland to Colorado. 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 enero 7, 2026.

The most flights from PDX to USCO are scheduled on a Wednesday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated enero 7, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Hawaiian Airlines from Portland to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Portland to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Portland to Colorado?

    If you book a flight to Colorado from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland.

  • How popular is this Portland to Colorado flight route?

  • How long is the flight from Portland to Colorado?

    For as low as $137, United Airlines can have you in Colorado from Portland in 2h 33m. The distance between Portland and Colorado is about 989 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $32. Delta flights start at $74 while deals on Alaska Airlines start at $78 one-way.

  • What are the most popular routes from Portland to Colorado?

  • What are the most reliable airlines from Portland to Colorado?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portland to Colorado on time: SkyWest Airlines (100%), Alaska Airlines (91%), United Airlines (91%).

  • What are the cheapest flights from Portland to Colorado?

    On average you can expect to pay $768 for a flight from Portland to Colorado. The cheapest flight overall is $78 while the most popular route, (Portland - Denver Intl) is currently priced at $97.

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

    Yes. In addition to deals on Portland to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Colorado.

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

    Yes. Cheapflights offers flight deals from Portland to Colorado 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 Colorado?

    Currently, February is the cheapest month in which you can book a flight from Portland to Colorado (average of $39). Flying from Portland to Colorado 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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Alternative routes for Portland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Portland to Colorado

Discover the top 7 airlines that operate flights from Portland to Colorado. 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 enero 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$148FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$98Average$234FlexibilityNo cancel feeOn-time85%
DeltaCheapest$128Average$304FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$151Average$419FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$156Average$261FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$156Average$345FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$228Average$360FlexibilityNo cancel feeOn-time71%

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