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$75+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jul 23 — Jul 301
Wed 7/23
Wed 7/30
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 July 18, 2025.

Round-trip from

$112
(Cheapflightsfares)

One-way from

$75
(Priceline)

Popular in

March

Cheapest in

September

Average price

$192

Good round-trip deal

$202 or less

Good one-way deal

$119 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. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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.
Wed 8/276:51 amPDX - DEN
Nonstop2h 39mFrontier
Wed 9/38:50 pmDEN - PDX
Nonstop2h 49mFrontier
Deal found 7/17$112
This Alaska Airlines deal was found by Cheapflights users on 7/16. 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.
Mon 10/202:32 pmPDX - DEN
Nonstop2h 30mAlaska Airlines
Thu 10/237:02 pmDEN - PDX
Nonstop2h 48mAlaska Airlines
Deal found 7/16$157
This Southwest deal was found by Cheapflights users on 7/17. 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.
Wed 8/277:10 amPDX - DEN
2 stops7h 50mSouthwest
Wed 9/38:45 pmDEN - PDX
Nonstop2h 35mSouthwest
Deal found 7/17$172
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:05 pmPDX - COS
1 stop4h 13mDelta
Wed 9/108:00 amCOS - PDX
1 stop5h 12mDelta
Deal found 7/17$177
This Southwest deal was found by Cheapflights users on 7/17. 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.
Fri 8/152:55 pmPDX - COS
1 stop6h 40mSouthwest
Sat 8/2311:05 amCOS - PDX
1 stop6h 20mSouthwest
Deal found 7/17$187
This United Airlines deal was found by Cheapflights users on 7/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/74:16 pmPDX - COS
1 stop4h 39mUnited Airlines
Mon 8/115:30 amCOS - PDX
1 stop5h 02mUnited Airlines
Deal found 7/17$217
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:20 pmPDX - GJT
1 stop3h 55mDelta
Tue 9/911:05 amGJT - PDX
1 stop6h 05mDelta
Deal found 7/17$220
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:01 amPDX - EGE
1 stop10h 05mAmerican Airlines
Tue 11/188:06 amEGE - PDX
1 stop9h 43mAmerican Airlines
Deal found 7/17$229
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/224:07 pmPDX - GJT
1 stop5h 04mUnited Airlines
Sat 10/251:30 pmGJT - PDX
2 stops10h 15mUnited Airlines
Deal found 7/15$234
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:05 amPDX - COS
2 stops12h 15mAmerican Airlines
Wed 9/1011:01 amCOS - PDX
2 stops11h 18mAmerican Airlines
Deal found 7/17$247
This Southwest deal was found by Cheapflights users on 7/15. 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.
Tue 11/116:05 amPDX - MTJ
1 stop4h 15mSouthwest
Sun 11/1611:50 amMTJ - PDX
1 stop7h 30mSouthwest
Deal found 7/15$268
This American Airlines deal was found by Cheapflights users on 7/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:05 amPDX - GJT
1 stop5h 10mAmerican Airlines
Tue 8/195:00 amGJT - PDX
1 stop6h 44mAmerican Airlines
Deal found 7/17$289

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 July 18, 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

Wed 8/27

6:51 am-10:30 am

Nonstop2h 39m

Denver Intl

Wed 9/3

8:50 pm-10:39 pm

Nonstop2h 49m

$112

PortlandDenver

PDX - DEN

PDXDEN

Portland

Mon 10/20

2:32 pm-6:02 pm

Nonstop2h 30m

Denver Intl

Sat 10/25

7:02 pm-8:50 pm

Nonstop2h 48m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 8/27

7:10 am-4:00 pm

2 stops7h 50m

Denver Intl

Wed 9/3

8:45 pm-10:20 pm

Nonstop2h 35m

$172

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Wed 8/20

5:05 pm-10:18 pm

1 stop4h 13m

Colorado Springs

Wed 9/10

8:00 am-12:12 pm

1 stop5h 12m

$177

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Fri 8/15

2:55 pm-10:35 pm

1 stop6h 40m

Colorado Springs

Sat 8/23

11:05 am-4:25 pm

1 stop6h 20m

$187

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Thu 8/7

4:16 pm-9:55 pm

1 stop4h 39m

Colorado Springs

Mon 8/11

5:30 am-9:32 am

1 stop5h 02m

$217

PortlandGrand Junction

PDX - GJT

PDXGJT

Portland

Thu 9/4

1:20 pm-6:15 pm

1 stop3h 55m

Grand Junction Regnl

Tue 9/9

11:05 am-4:10 pm

1 stop6h 05m

$220

PortlandVail

PDX - EGE

PDXEGE

Portland

Tue 11/11

8:01 am-7:06 pm

1 stop10h 05m

Vail Eagle County

Tue 11/18

8:06 am-4:49 pm

1 stop9h 43m

$229

PortlandGrand Junction

PDX - GJT

PDXGJT

Portland

Wed 10/22

4:07 pm-10:11 pm

1 stop5h 04m

Grand Junction Regnl

Sat 10/25

1:30 pm-10:45 pm

2 stops10h 15m

$234

PortlandMontrose

PDX - MTJ

PDXMTJ

Portland

Tue 9/30

5:38 am-1:32 pm

1 stop6h 54m

Montrose County

Sat 10/4

2:29 pm-9:27 pm

1 stop7h 58m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 52 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 July 18, 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 July 18, 2025.

The most flights from PDX to USCO are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 July 18, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,958 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,581 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,864 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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 230 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 $75. Hawaiian Airlines flights start at $76 while deals on Alaska Airlines start at $85 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 - Colorado Springs or Portland - Grand Junction Regnl.

  • 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 (87%), United Airlines (82%), SWISS (82%).

  • What are the cheapest flights from Portland to Colorado?

    On average you can expect to pay $940 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 $129.

  • 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$133FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$98Average$239FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$156Average$486FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$158Average$357FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$166Average$261FlexibilityNo cancel feeOn-time75%
DeltaCheapest$198Average$290FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$405FlexibilityNo cancel feeOn-time71%

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