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$72+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 29, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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. 3/1312:04 pm
PDX
-
DEN
Nonstop2h 37m
Frontier
mar. 3/1710:40 pm
DEN
-
PDX
1 stop11h 18m
Frontier
Deal found 1/27$122
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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. 5/811:48 am
PDX
-
DEN
Nonstop2h 38m
Frontier
dom. 5/109:10 am
DEN
-
PDX
Nonstop2h 53m
Frontier
Deal found 1/28$123
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
mar. 3/107:05 am
PDX
-
DEN
Nonstop2h 37m
Multiple Airlines
dom. 3/159:10 am
DEN
-
PDX
Nonstop2h 59m
Multiple Airlines
Deal found 1/28$124
This Kiwi.com deal was found by Cheapflights users on 1/27. 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. 3/612:04 pm
PDX
-
DEN
Nonstop2h 37m
Frontier
dom. 3/810:29 pm
DEN
-
PDX
1 stop14h 23m
Frontier
Deal found 1/27$127
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 am
PDX
-
DEN
1 stop13h 37m
Frontier
lun. 3/169:10 am
DEN
-
PDX
Nonstop2h 59m
Frontier
Deal found 1/28$128
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mié. 3/117:05 am
PDX
-
DEN
Nonstop2h 37m
Multiple Airlines
dom. 3/159:10 am
DEN
-
PDX
Nonstop2h 59m
Multiple Airlines
Deal found 1/27$129
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
sáb. 3/143:52 pm
PDX
-
DEN
1 stop7h 07m
Multiple Airlines
dom. 3/159:10 am
DEN
-
PDX
Nonstop2h 59m
Multiple Airlines
Deal found 1/28$130
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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. 5/111:48 am
PDX
-
DEN
Nonstop2h 38m
Frontier
dom. 5/39:10 am
DEN
-
PDX
Nonstop2h 53m
Frontier
Deal found 1/27$132
This Expedia deal was found by Cheapflights users on 1/27. 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.
vie. 3/133:52 pm
PDX
-
DEN
1 stop7h 07m
Multiple Airlines
dom. 3/159:10 am
DEN
-
PDX
Nonstop2h 59m
Multiple Airlines
Deal found 1/27$133
This Kiwi.com deal was found by Cheapflights users on 1/28. 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. 3/612:04 pm
PDX
-
DEN
Nonstop2h 37m
Frontier
mié. 3/114:41 pm
DEN
-
PDX
2 stops17h 17m
Frontier
Deal found 1/28$134
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
mié. 2/257:05 am
PDX
-
DEN
Nonstop2h 37m
Alaska Airlines
mar. 3/311:38 am
DEN
-
PDX
Nonstop3h 00m
Alaska Airlines
Deal found 1/26$137
This Southwest deal was found by Cheapflights users on 1/29. 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.
mié. 2/186:20 am
PDX
-
COS
1 stop4h 05m
Southwest
mar. 2/2410:15 am
COS
-
PDX
1 stop6h 30m
Southwest
Deal found 1/29$157

Find 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 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$122
(Cheapflightsfares)

One-way from

$72
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$180

Good round-trip deal

$257 or less

Good one-way deal

$154 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 Colorado
Search Deals
One-way flight from Portland to Colorado
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Portland to Colorado.
Search Deals
Price to beat on a one-way flight from Portland to Colorado.
Search Deals

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 29, 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

mié. 2/18

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

mar. 2/24

11:38 am-1:38 pm

Nonstop3h 00m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

vie. 2/27

6:57 pm-10:30 pm

Nonstop2h 33m

Denver Intl

sáb. 3/7

8:00 am-9:54 am

Nonstop2h 54m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 2/24

1:36 pm-9:23 pm

1 stop6h 47m

Denver Intl

mié. 3/4

11:38 am-1:38 pm

Nonstop3h 00m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 3/11

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

jue. 3/19

6:03 pm-7:52 pm

Nonstop2h 49m

$147

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

mié. 2/18

6:20 am-11:25 am

1 stop4h 05m

Colorado Springs

mar. 2/24

10:15 am-3:45 pm

1 stop6h 30m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

mié. 3/11

5:36 pm-11:29 pm

1 stop4h 53m

Denver Intl

mié. 3/18

6:15 pm-11:54 pm

1 stop6h 39m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

jue. 2/19

5:05 am-8:38 am

Nonstop2h 33m

Denver Intl

lun. 2/23

7:48 am-9:42 am

Nonstop2h 54m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

sáb. 2/21

5:45 am-12:00 pm

1 stop5h 15m

Denver Intl

mar. 2/24

6:50 pm-12:15 am

1 stop6h 25m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

lun. 2/23

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

jue. 3/5

11:38 am-1:38 pm

Nonstop3h 00m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

mar. 2/17

2:31 pm-11:59 pm

1 stop8h 28m

Denver Intl

jue. 2/19

11:38 am-1:38 pm

Nonstop3h 00m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

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 $46). 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 29, 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 12% 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 24, 2026.

Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Saturday 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 29, 2026.

The most flights from PDX to USCO are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 29, 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.
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,808 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,830 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Frontier
5.7
Fair
3,056 reviews
Alaska Airlines
8.0
Very good
11,808 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 214 times in the past calendar month.

  • How long is the flight from Portland to Colorado?

    For as low as $147, Alaska 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 $34. Alaska Airlines flights start at $69 while deals on Delta start at $74 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 - Hayden Yampa Valley.

  • 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: United Airlines (93%), Lufthansa (90%), Hawaiian Airlines (84%).

  • What are the cheapest flights from Portland to Colorado?

    On average you can expect to pay $866 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 $46). 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.

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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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Eugene to Denver flights

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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$148FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$290FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$88Average$200FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$138Average$403FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$147Average$260FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$153Average$346FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$228Average$374FlexibilityNo cancel feeOn-time71%

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