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$25+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PDX
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 November 13, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$66
(CheapOair)

One-way from

$25
(Expedia)

Popular in

March

Cheapest in

January

Average price

$217

Good round-trip deal

$148 or less

Good one-way deal

$94 or less
Provider with most accurate pricing for Denver Intl-Portland flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Portland flights.
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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. 8% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 13, 2025.

This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:42 amDEN - BOI
Nonstop2h 07mFrontier
Sun 12/1412:44 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/12$66
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:52 amDEN - BOI
Nonstop2h 07mFrontier
Thu 12/2512:38 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/13$78
This Priceline deal was found by Cheapflights users on 11/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:49 amDEN - BOI
Nonstop2h 04mFrontier
Mon 11/248:54 pmBOI - DEN
Nonstop2h 04mFrontier
Deal found 11/11$80
This Frontier deal was found by Cheapflights users on 11/11. 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 12/49:42 amDEN - BOI
Nonstop2h 07mFrontier
Thu 12/1112:44 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/11$83
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 12/119:42 amDEN - BOI
Nonstop2h 07mFrontier
Sat 12/2012:54 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/10$86
This Travelocity deal was found by Cheapflights users on 11/11. 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.
Fri 11/219:49 amDEN - BOI
Nonstop2h 04mFrontier
Sun 11/2312:48 pmBOI - DEN
Nonstop2h 04mFrontier
Deal found 11/11$90
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 12/49:42 amDEN - BOI
Nonstop2h 07mFrontier
Fri 12/512:44 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/10$97
This Frontier deal was found by Cheapflights users on 11/11. 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 12/49:42 amDEN - BOI
Nonstop2h 07mFrontier
Sun 12/712:44 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/11$98
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:43 amDEN - PDX
Nonstop3h 00mFrontier
Tue 12/232:29 pmPDX - DEN
1 stop12h 29mFrontier
Deal found 11/12$103
This CheapOair deal was found by Cheapflights users on 11/11. 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.
Mon 12/11:19 pmDEN - PDX
Nonstop2h 57mFrontier
Sun 12/1412:51 pmPDX - DEN
Nonstop2h 28mFrontier
Deal found 11/11$104
This Cheapflightsfares deal was found by Cheapflights users on 11/11. 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 12/59:56 amDEN - PDX
Nonstop3h 00mFrontier
Sun 12/712:51 pmPDX - DEN
Nonstop2h 28mFrontier
Deal found 11/11$105
This Frontier deal was found by Cheapflights users on 11/10. 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 12/119:42 amDEN - BOI
Nonstop2h 07mFrontier
Thu 12/1812:38 pmBOI - DEN
Nonstop2h 01mFrontier
Deal found 11/10$108

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 November 13, 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

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 2/21

11:38 am-1:38 pm

Nonstop3h 00m

Portland

Tue 2/24

7:05 am-10:42 am

Nonstop2h 37m

$137

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 12/13

7:55 am-9:45 am

Nonstop2h 50m

Portland

Tue 12/16

5:55 am-9:20 am

Nonstop2h 25m

$137

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Wed 12/17

11:41 am-1:41 pm

Nonstop3h 00m

Portland

Wed 12/31

7:00 am-10:35 am

Nonstop2h 35m

$137

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Wed 12/10

11:41 am-1:41 pm

Nonstop3h 00m

Portland

Wed 12/17

5:50 pm-9:28 pm

Nonstop2h 38m

$137

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 12/13

6:00 am-11:03 am

1 stop6h 03m

Portland

Tue 12/16

4:02 pm-7:35 pm

Nonstop2h 33m

$143

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 12/6

11:41 am-1:41 pm

Nonstop3h 00m

Portland

Sun 12/7

7:10 am-10:45 am

Nonstop2h 35m

$147

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Wed 12/17

6:05 am-10:55 am

1 stop5h 50m

Portland

Wed 12/31

5:15 pm-11:23 pm

1 stop5h 08m

$157

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Fri 1/2

7:05 am-9:00 am

Nonstop2h 55m

Portland

Sun 1/4

5:30 am-8:55 am

Nonstop2h 25m

$157

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Fri 2/27

7:48 am-9:42 am

Nonstop2h 54m

Portland

Sun 3/1

4:00 pm-7:33 pm

Nonstop2h 33m

$157

DenverPortland

DEN - PDX

DENPDX

Denver Intl

Sat 2/21

6:21 pm-10:54 pm

1 stop5h 33m

Portland

Tue 2/24

11:10 am-5:29 pm

1 stop5h 19m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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, January is the cheapest month in which you can book a flight from Colorado to Oregon (average of $52). Flying from Colorado to Oregon in August is currently the most expensive (average of $99). 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 November 13, 2025.

One of the essential ways to save on airfare from Colorado to Oregon 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 19% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Colorado to Oregon. Price data was last updated on December 16, 2024.

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

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 November 13, 2025.

The most flights from USCO to USOR are scheduled on a Thursday (19 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 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 November 13, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Hawaiian Airlines 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
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,281 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,236 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,809 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,015 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Frontier
5.8
Fair
3,113 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 71 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 2h 50m. Fly via Alaska Airlines, Southwest, or United Airlines to get the fastest option. There are 989 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 Alaska Airlines. According to our data, you can fly for as low as $69. Users have also found prices from $69 and $107 on United Airlines and Delta, 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, January is the cheapest month in which you can book a flight from Colorado to Oregon (average of $52). Flying from Colorado to Oregon in August is currently the most expensive (average of $99). 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$64Average$156FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$88Average$281FlexibilityNo cancel feeOn-time85%
DeltaCheapest$104Average$291FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$136Average$422FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$157Average$362FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$162Average$296FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$228Average$395FlexibilityNo cancel feeOn-time71%

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