HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$43+ 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DEN
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Colorado with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 8, 2025.

This Frontier deal was found by Cheapflights users on 12/7. 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 12/228:45 pmPDX - DEN
1 stop11h 10mFrontier
Sun 1/119:15 amDEN - PDX
Nonstop3h 00mFrontier
Deal found 12/7$161
This Expedia deal was found by Cheapflights users on 12/6. 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.
Tue 12/305:50 pmPDX - DEN
Nonstop2h 38mAlaska Airlines
Mon 1/57:20 amDEN - PDX
Nonstop2h 58mAlaska Airlines
Deal found 12/6$197
This Kiwi.com deal was found by Cheapflights users on 12/6. 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.
Fri 12/198:45 pmPDX - DEN
1 stop11h 10mFrontier
Wed 12/246:15 amDEN - PDX
1 stop9h 45mFrontier
Deal found 12/6$200
This Kiwi.com deal was found by Cheapflights users on 12/6. 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.
Fri 12/198:45 pmPDX - DEN
1 stop11h 10mMultiple Airlines
Thu 1/17:20 amDEN - PDX
Nonstop2h 58mMultiple Airlines
Deal found 12/6$201
This Super.com deal was found by Cheapflights users on 12/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:47 pmPDX - DEN
Nonstop2h 28mFrontier
Thu 12/259:43 amDEN - PDX
Nonstop3h 00mFrontier
Deal found 12/4$202
This Frontier deal was found by Cheapflights users on 12/7. 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.
Sun 12/77:26 pmPDX - DEN
1 stop12h 29mFrontier
Sun 1/119:15 amDEN - PDX
Nonstop3h 00mFrontier
Deal found 12/7$210
This Kiwi.com deal was found by Cheapflights users on 12/6. 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 12/252:29 pmPDX - DEN
1 stop8h 04mMultiple Airlines
Wed 12/317:20 amDEN - PDX
Nonstop2h 58mMultiple Airlines
Deal found 12/6$212
This Frontier deal was found by Cheapflights users on 12/5. 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 12/252:29 pmPDX - DEN
1 stop8h 04mFrontier
Sat 1/3110:49 pmDEN - PDX
1 stop12h 25mFrontier
Deal found 12/5$213
This Cheapflightsfares deal was found by Cheapflights users on 12/6. 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 12/1212:55 pmPDX - DEN
Nonstop2h 28mFrontier
Sun 12/149:56 amDEN - PDX
Nonstop3h 00mFrontier
Deal found 12/6$217
This Kiwi.com deal was found by Cheapflights users on 12/6. 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 12/228:45 pmPDX - DEN
1 stop11h 10mMultiple Airlines
Wed 12/317:20 amDEN - PDX
Nonstop2h 58mMultiple Airlines
Deal found 12/6$218
This United Airlines deal was found by Cheapflights users on 12/5. 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.
Sun 12/215:00 amPDX - EGE
1 stop4h 35mUnited Airlines
Thu 12/251:36 pmEGE - PDX
1 stop4h 55mUnited Airlines
Deal found 12/5$324
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/182:45 pmPDX - DRO
1 stop5h 19mUnited Airlines
Sun 12/283:23 pmDRO - PDX
1 stop6h 44mUnited Airlines
Deal found 12/7$324

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$103
(Expedia)

One-way from

$43
(Frontier)

Popular in

December

Cheapest in

January

Average price

$249

Good round-trip deal

$239 or less

Good one-way deal

$143 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 ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 8, 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

Fri 1/2

5:30 am-8:55 am

Nonstop2h 25m

Denver Intl

Wed 1/7

8:40 am-10:35 am

Nonstop2h 55m

$147

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Sun 1/25

5:50 am-11:17 am

1 stop4h 27m

Colorado Springs

Tue 2/10

12:03 pm-8:59 pm

2 stops9h 56m

$152

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 1/22

7:21 am-10:53 am

Nonstop2h 32m

Denver Intl

Sun 1/25

11:49 am-1:44 pm

Nonstop2h 55m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 2/6

3:45 pm-7:18 pm

Nonstop2h 33m

Denver Intl

Sun 2/8

7:45 am-9:45 am

Nonstop3h 00m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Wed 2/18

7:05 am-10:42 am

Nonstop2h 37m

Denver Intl

Thu 2/19

6:45 pm-11:57 pm

1 stop6h 12m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 2/14

3:55 pm-11:25 pm

1 stop6h 30m

Denver Intl

Tue 2/17

6:40 am-10:32 am

1 stop4h 52m

$157

PortlandDenver

PDX - DEN

PDXDEN

Portland

Mon 1/26

7:21 am-10:53 am

Nonstop2h 32m

Denver Intl

Sun 2/8

11:49 am-1:44 pm

Nonstop2h 55m

$157

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Sun 1/25

6:00 am-2:09 pm

1 stop7h 09m

Colorado Springs

Tue 2/10

3:17 pm-10:11 pm

1 stop7h 54m

$158

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 1/30

1:38 pm-11:35 pm

1 stop8h 57m

Denver Intl

Mon 2/2

11:49 am-1:44 pm

Nonstop2h 55m

$167

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 2/27

2:31 pm-11:59 pm

1 stop8h 28m

Denver Intl

Mon 3/2

11:38 am-1:38 pm

Nonstop3h 00m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 60 results
1
2
3
...
6

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 $37). 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 December 8, 2025.

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 afternoon could potentially save you up to 8% 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 December 16, 2024.

Travelers seeking maximum savings on their Portland to Colorado flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon 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 December 8, 2025.

The most flights from PDX to USCO are scheduled on a Friday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 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 December 8, 2025.
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
11,409 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,409 reviews
Alaska Airlines
8.0
Very good
11,409 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Southwest
8.0
Very good
4,253 reviews
Alaska Airlines
8.0
Very good
11,409 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,817 reviews
Alaska Airlines
8.0
Very good
11,409 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,075 reviews
Alaska Airlines
8.0
Very good
11,409 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Frontier
5.8
Fair
3,089 reviews
Alaska Airlines
8.0
Very good
11,409 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 208 times in the past calendar month.

  • How long is the flight from Portland to Colorado?

    For as low as $147, Southwest can have you in Colorado from Portland in 2h 25m. 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 $36. Delta flights start at $74 while deals on Alaska Airlines start at $78 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 - Durango La Plata County or Portland - Colorado Springs.

  • 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 (97%), United Airlines (96%), Frontier (90%).

  • What are the cheapest flights from Portland to Colorado?

    On average you can expect to pay $757 for a flight from Portland to Colorado. The cheapest flight overall is $72 while the most popular route, (Portland - Denver Intl) is currently priced at $102.

  • 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 $37). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Los Angeles flights
Portland to Las Vegas flights
Portland to John F Kennedy Intl flights
Portland to Sky Harbor Intl flights
Portland to San Francisco flights
Portland to Newark flights
Portland to Dallas/Fort Worth flights
Portland to Denver flights
Portland to Honolulu flights
Portland to Kahului flights
Portland to Orlando flights
Portland to Palm Springs flights
Portland to Miami flights
Portland to LaGuardia flights
Portland to Hobby flights
Portland to San Diego flights
Portland to Minneapolis flights
Portland to Atlanta flights
Portland to Boston flights
Portland to Ontario flights
Boise to Seattle flights
Portland to Kailua-Kona flights
Portland to O'Hare Intl flights
Portland to George Bush Intcntl flights
Boise to Las Vegas flights
Portland to Lihue flights
Portland to Salt Lake City flights
Portland to Oakland flights
Portland to Santa Ana flights
Boise to Sky Harbor Intl flights
Portland to New Orleans flights
Portland to Reagan-National flights
Boise to Denver flights
Portland to Detroit flights
Portland to Tampa flights
Boise to Dallas/Fort Worth flights
Portland to Midway flights
Portland to Dulles Intl flights
Portland to San Jose flights
Portland to Austin flights
Portland to Seattle flights
Boise to Los Angeles flights
Portland to Tucson flights
Portland to Nashville flights
Portland to Fort Lauderdale flights
Portland to Baltimore flights
Eugene to Las Vegas flights
Portland to Love Field flights
Boise to Portland flights
Boise to San Diego 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$149FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$98Average$234FlexibilityNo cancel feeOn-time85%
DeltaCheapest$128Average$294FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$265FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$157Average$338FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$157Average$436FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$359FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights