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Colorado

$69+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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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 agosto 14, 2025.

Round-trip from

$98
(Frontier)

One-way from

$69
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$178

Good round-trip deal

$192 or less

Good one-way deal

$131 or less
From Portland to Colorado
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One-way flight from Portland to Colorado
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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 August 2025
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Price to beat on a round-trip flight from Portland to Colorado.
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Price to beat on a one-way flight from Portland to Colorado.
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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 agosto 14, 2025.

This Frontier deal was found by Cheapflights users on 8/13. 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.
vie. 9/126:05 amPDX - DEN
Nonstop2h 39mFrontier
lun. 9/1510:29 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 8/13$99
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/177:15 amPDX - DEN
Nonstop2h 43mFrontier
mié. 9/248:50 pmDEN - PDX
Nonstop2h 44mFrontier
Deal found 8/12$100
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/207:15 amPDX - DEN
Nonstop2h 43mFrontier
mar. 9/238:50 pmDEN - PDX
Nonstop2h 44mFrontier
Deal found 8/12$101
This Frontier deal was found by Cheapflights users on 8/13. 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.
vie. 9/56:05 amPDX - DEN
Nonstop2h 39mFrontier
dom. 9/710:29 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 8/13$102
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1112:43 pmPDX - DEN
Nonstop2h 43mFrontier
vie. 10/179:58 amDEN - PDX
Nonstop2h 50mFrontier
Deal found 8/12$104
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/126:05 amPDX - DEN
Nonstop2h 39mFrontier
dom. 9/1410:29 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 8/12$106
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1012:44 pmPDX - DEN
Nonstop2h 43mFrontier
dom. 10/129:58 amDEN - PDX
Nonstop2h 50mFrontier
Deal found 8/12$107
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/67:15 amPDX - DEN
Nonstop2h 43mFrontier
mié. 9/108:50 pmDEN - PDX
Nonstop2h 44mFrontier
Deal found 8/12$108
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/1512:43 pmPDX - DEN
Nonstop2h 43mFrontier
vie. 10/179:58 amDEN - PDX
Nonstop2h 50mFrontier
Deal found 8/12$109
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/46:05 amPDX - DEN
Nonstop2h 39mFrontier
dom. 9/76:00 amDEN - PDX
1 stop5h 33mFrontier
Deal found 8/14$110
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:05 amPDX - DEN
Nonstop2h 39mFrontier
lun. 9/1510:29 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 8/12$111
This Justfly.com deal was found by Cheapflights users on 8/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/196:05 amPDX - DEN
Nonstop2h 39mFrontier
lun. 9/2210:29 pmDEN - PDX
Nonstop2h 43mFrontier
Deal found 8/14$113

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 agosto 14, 2025.
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

vie. 9/12

6:05 am-9:44 am

Nonstop2h 39m

Denver Intl

lun. 9/15

10:29 pm-12:12 am

Nonstop2h 43m

$99

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 9/17

7:15 am-10:58 am

Nonstop2h 43m

Denver Intl

sáb. 9/20

8:50 pm-10:34 pm

Nonstop2h 44m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 9/2

6:51 am-10:30 am

Nonstop2h 39m

Denver Intl

mar. 9/9

8:50 pm-10:34 pm

Nonstop2h 44m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 9/3

6:51 am-10:30 am

Nonstop2h 39m

Denver Intl

mar. 9/16

8:50 pm-10:34 pm

Nonstop2h 44m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 9/13

7:15 am-10:58 am

Nonstop2h 43m

Denver Intl

sáb. 9/13

8:50 pm-10:34 pm

Nonstop2h 44m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 9/20

7:15 am-10:58 am

Nonstop2h 43m

Denver Intl

mar. 9/23

8:50 pm-10:34 pm

Nonstop2h 44m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 10/11

12:43 pm-4:26 pm

Nonstop2h 43m

Denver Intl

mié. 10/15

9:58 am-11:48 am

Nonstop2h 50m

$100

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 10/4

7:15 am-10:58 am

Nonstop2h 43m

Denver Intl

dom. 10/12

9:58 am-11:48 am

Nonstop2h 50m

$102

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 9/5

6:05 am-9:44 am

Nonstop2h 39m

Denver Intl

dom. 9/7

10:29 pm-12:12 am

Nonstop2h 43m

$102

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 10/11

12:43 pm-4:26 pm

Nonstop2h 43m

Denver Intl

lun. 10/13

9:58 am-11:48 am

Nonstop2h 50m

$102

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 59 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, October is the cheapest month in which you can book a flight from Portland to Colorado (average of $197). Flying from Portland to Colorado 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 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 agosto 14, 2025.

When flying from Portland to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 agosto 14, 2025.

The most flights from PDX to USCO are scheduled on a Thursday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 agosto 14, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and United 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Frontier
5.8
Fair
3,217 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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?

    Flights from Portland to Colorado have been viewed 211 times in the past calendar month.

  • 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 $69. Delta flights start at $85 while deals on United Airlines start at $105 one-way.

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

    The most popular route from Portland to Colorado is Portland - Denver Intl. You may also consider Portland - Grand Junction Regnl or Portland - Colorado Springs.

  • 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: Lufthansa (84%), United Airlines (82%), SWISS (81%).

  • What are the cheapest flights from Portland to Colorado?

    On average you can expect to pay $769 for a flight from Portland to Colorado. The cheapest flight overall is $83 while the most popular route, (Portland - Denver Intl) is currently priced at $54.

  • 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, October is the cheapest month in which you can book a flight from Portland to Colorado (average of $197). Flying from Portland to Colorado in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$136FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$94Average$235FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$157Average$356FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$157Average$484FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$164Average$262FlexibilityNo cancel feeOn-time75%
DeltaCheapest$196Average$308FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$399FlexibilityNo cancel feeOn-time71%

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