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$59+ Cheap flights from Colorado to Oregon

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PDX
Sep 5 — Sep 121
Fri 9/5
Fri 9/12
1 adult, Economy
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Cheap flight deals from Colorado to Oregon

Keep the following information in mind while searching for Colorado to Oregon flight deals. Data was last updated August 31, 2025.

Round-trip from

$98
(Frontier)

One-way from

$59
(Cheapflightsfares)

Popular in

March

Cheapest in

January

Average price

$187

Good round-trip deal

$145 or less

Good one-way deal

$103 or less
From Colorado to Oregon
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One-way flight from Colorado to Oregon
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Highest demand for flights based on searches. 11% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 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 Colorado to Oregon.
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Price to beat on a one-way flight from Colorado to Oregon.
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Find flight deals from Colorado to Oregon

Cheapest flights from Colorado to Oregon
Explore the most affordable flight options available from Colorado to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 31, 2025.

This Frontier deal was found by Cheapflights users on 8/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:38 amDEN - BOI
Nonstop1h 59mFrontier
Thu 9/1112:22 pmBOI - DEN
Nonstop2h 23mFrontier
Deal found 8/28$79
This Frontier deal was found by Cheapflights users on 8/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:38 amDEN - BOI
Nonstop1h 59mFrontier
Fri 9/1912:22 pmBOI - DEN
Nonstop2h 23mFrontier
Deal found 8/29$98
This Cheapflightsfares deal was found by Cheapflights users on 8/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/189:58 amDEN - PDX
Nonstop2h 50mFrontier
Tue 10/2112:43 pmPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/29$98
This Frontier deal was found by Cheapflights users on 8/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:48 amDEN - PDX
Nonstop2h 50mFrontier
Sun 10/2612:43 pmPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/29$102
This Mytrip deal was found by Cheapflights users on 8/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:29 pmDEN - PDX
1 stop21h 03mFrontier
Sat 9/207:15 amPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/28$104
This FlightHub deal was found by Cheapflights users on 8/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/208:50 pmDEN - PDX
Nonstop2h 44mFrontier
Wed 10/17:15 amPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/29$105
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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.
Sat 11/1510:05 amDEN - PDX
Nonstop2h 51mFrontier
Tue 11/1812:52 pmPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/31$108
This CheapOair deal was found by Cheapflights users on 8/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:50 pmDEN - PDX
Nonstop2h 44mFrontier
Mon 10/67:16 pmPDX - DEN
1 stop14h 15mFrontier
Deal found 8/29$112
This Cheapflightsfares deal was found by Cheapflights users on 8/30. 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.
Thu 10/3010:05 amDEN - PDX
Nonstop2h 51mFrontier
Mon 11/33:26 pmPDX - DEN
Nonstop2h 41mFrontier
Deal found 8/30$114
This Cheapflightsfares deal was found by Cheapflights users on 8/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:00 amDEN - PDX
1 stop12h 32mFrontier
Sun 9/286:05 amPDX - DEN
Nonstop2h 39mFrontier
Deal found 8/29$115
This Cheapflightsfares deal was found by Cheapflights users on 8/30. 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.
Sat 10/48:50 pmDEN - PDX
Nonstop2h 44mFrontier
Sat 10/1112:43 pmPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/30$117
This Frontier deal was found by Cheapflights users on 8/31. 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.
Sat 9/208:50 pmDEN - PDX
Nonstop2h 44mFrontier
Wed 9/247:15 amPDX - DEN
Nonstop2h 43mFrontier
Deal found 8/31$118

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Oregon 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 August 31, 2025.
Use the filters below to find and compare flights from Colorado to Oregon that are best for you.

Fly from

Colorado

Fly to

Oregon

Route

Depart

Return

Price

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 9/18

9:38 am-11:37 am

Nonstop1h 59m

Boise Air Term. Gowen Fld

Fri 9/19

12:22 pm-2:45 pm

Nonstop2h 23m

$98

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 9/25

9:38 am-11:37 am

Nonstop1h 59m

Boise Air Term. Gowen Fld

Fri 9/26

12:22 pm-2:45 pm

Nonstop2h 23m

$98

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 10/18

9:58 am-11:48 am

Nonstop2h 50m

Portland

Tue 10/21

12:43 pm-4:26 pm

Nonstop2h 43m

$98

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Thu 10/23

9:48 am-11:38 am

Nonstop2h 50m

Portland

Sun 10/26

12:43 pm-4:26 pm

Nonstop2h 43m

$102

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Wed 9/17

10:29 pm-6:32 pm

1 stop21h 03m

Portland

Sat 9/20

7:15 am-10:58 am

Nonstop2h 43m

$104

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Thu 10/23

9:48 am-11:38 am

Nonstop2h 50m

Portland

Sat 10/25

12:43 pm-4:26 pm

Nonstop2h 43m

$105

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 9/20

8:50 pm-10:34 pm

Nonstop2h 44m

Portland

Wed 10/1

7:15 am-10:58 am

Nonstop2h 43m

$105

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 11/15

10:05 am-11:56 am

Nonstop2h 51m

Portland

Tue 11/18

12:52 pm-4:35 pm

Nonstop2h 43m

$108

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Fri 9/19

10:29 pm-12:12 am

Nonstop2h 43m

Portland

Sun 9/21

6:05 am-9:44 am

Nonstop2h 39m

$108

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sun 10/5

10:29 pm-12:12 am

Nonstop2h 43m

Portland

Wed 10/15

12:43 pm-4:26 pm

Nonstop2h 43m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/29

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

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

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

Currently, November is the cheapest month in which you can book a flight from Colorado to Oregon (average of $277). Flying from Colorado to Oregon in March is currently the most expensive (average of $368). 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 CO to OR?

Find hourly flight availability from Colorado to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Oregon as you normally would.

Weekly flight availability from Colorado to Oregon

Explore weekly flight availability from Colorado to Oregon. 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 August 31, 2025.

The most flights from USCO to USOR are scheduled on a Friday (23 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Oregon

Get insights into the airlines that provide service to Oregon. 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 Oregon. Reviews last updated August 31, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Colorado to Oregon by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,976 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,942 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,202 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Oregon. 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 Colorado to Oregon flight route?

    Flights from Colorado to Oregon have been viewed 68 times in the past calendar month.

  • How long is the flight from Colorado to Oregon?

    There are many flights that can get you from Colorado to Oregon in 1h 59m. Fly via Frontier, American Airlines, or Alaska Airlines to get the fastest option. There are 647 mi between Colorado and Oregon. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $59. Users have also found prices from $88 and $88 on Alaska Airlines and Hawaiian Airlines, respectively.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Colorado to Oregon (average of $277). Flying from Colorado to Oregon in March is currently the most expensive (average of $368). 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 Colorado to Oregon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Colorado to Oregon

Discover the top 7 airlines that operate flights from Colorado to Oregon. 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 August 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$153FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$89Average$282FlexibilityNo cancel feeOn-time85%
DeltaCheapest$109Average$287FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$156Average$379FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$158Average$446FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$167Average$298FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$228Average$390FlexibilityNo cancel feeOn-time71%

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