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Colorado

$28+ Cheap flights from Oregon 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Oregon to Colorado

Cheapest flights from Oregon to Colorado
Explore the most affordable flight options available from Oregon to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:56 am
BOI
-
DEN
Nonstop2h 00m
Frontier
Sun 3/19:01 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/26$58
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.
Thu 2/2612:38 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Sun 3/19:01 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$65
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.
Thu 2/2612:38 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Thu 3/59:41 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$74
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/612:07 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Fri 2/139:01 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$80
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.
Sun 2/2211:56 am
BOI
-
DEN
Nonstop2h 00m
Frontier
Thu 2/269:41 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$86
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:36 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Thu 2/269:41 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$87
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:07 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Thu 2/129:41 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/26$92
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1311:56 am
BOI
-
DEN
Nonstop2h 00m
Frontier
Fri 2/209:01 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$94
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/512:38 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Thu 3/129:10 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/27$100
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1212:36 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Sun 2/159:01 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Deal found 1/26$102
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.
Fri 3/1312:04 pm
PDX
-
DEN
Nonstop2h 37m
Frontier
Tue 3/1710:40 pm
DEN
-
PDX
1 stop11h 18m
Frontier
Deal found 1/27$122
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:04 pm
PDX
-
DEN
Nonstop2h 37m
Frontier
Wed 3/1810:30 pm
DEN
-
PDX
1 stop11h 28m
Frontier
Deal found 1/26$123

Find flight deals from Oregon to Colorado

Keep the following information in mind while searching for Oregon to Colorado flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$58
(eDestinos)

One-way from

$28
(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 Oregon to Colorado
Search Deals
One-way flight from Oregon 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 Oregon to Colorado.
Search Deals
Price to beat on a one-way flight from Oregon to Colorado.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oregon 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 January 28, 2026.
Use the filters below to find and compare flights from Oregon to Colorado that are best for you.

Fly from

Oregon

Fly to

Colorado

Route

Depart

Return

Price

PortlandDenver

PDX - DEN

PDXDEN

Portland

Tue 2/24

6:20 am-9:45 am

Nonstop2h 25m

Denver Intl

Tue 3/3

8:25 pm-10:15 pm

Nonstop2h 50m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 2/28

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

Wed 3/4

11:38 am-1:38 pm

Nonstop3h 00m

$137

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 2/20

6:57 pm-10:30 pm

Nonstop2h 33m

Denver Intl

Tue 2/24

7:48 am-9:42 am

Nonstop2h 54m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sun 4/26

2:45 pm-6:29 pm

Nonstop2h 44m

Denver Intl

Tue 5/5

11:46 am-1:35 pm

Nonstop2h 49m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 3/14

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

Thu 3/19

6:03 pm-7:52 pm

Nonstop2h 49m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 2/25

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

Fri 2/27

11:38 am-1:38 pm

Nonstop3h 00m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 2/25

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

Tue 3/3

7:00 am-10:46 am

1 stop4h 46m

$147

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 2/25

3:59 pm-11:25 pm

1 stop6h 26m

Denver Intl

Wed 3/4

6:50 pm-12:15 am

1 stop6h 25m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 2/27

6:57 pm-10:30 pm

Nonstop2h 33m

Denver Intl

Sun 3/1

7:48 am-9:42 am

Nonstop2h 54m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 3/6

2:50 pm-6:15 pm

Nonstop2h 25m

Denver Intl

Sun 3/8

8:30 am-10:10 am

Nonstop2h 40m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

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

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

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

Currently, February is the cheapest month in which you can book a flight from Oregon to Colorado (average of $46). Flying from Oregon 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 OR to CO?

Find hourly flight availability from Oregon 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 January 28, 2026.

A simple way to save on the total cost of your ticket is to fly from Oregon to Colorado in the afternoon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Oregon to Colorado. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their Oregon 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 Oregon to Colorado

Explore weekly flight availability from Oregon 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 January 28, 2026.

The most flights from USOR 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 January 28, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Oregon to Colorado. 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
11,801 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

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
11,801 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

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
4,268 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

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
Delta
7.9
Good
8,122 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

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
9,208 reviews
Alaska Airlines
8.0
Very good
11,801 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

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
11,801 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

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 Oregon to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Oregon to Colorado flight route?

    This flight path from Oregon to Colorado was viewed by 214 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Oregon to Colorado?

    Departing from Oregon to Colorado will take you 2h 25m. Oregon and Colorado are separated by a distance of 989 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $34 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $69 and $74, respectively.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Oregon to Colorado (average of $46). Flying from Oregon 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Oregon 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 Oregon to Colorado

Discover the top 7 airlines that operate flights from Oregon 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$148FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$272FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$88Average$244FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$138Average$397FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$147Average$289FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$153Average$361FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$228Average$374FlexibilityNo cancel feeOn-time71%

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