What is the cheapest airline that flies from Portland to Colorado?

United Airlines, Alaska Airlines, and Southwest are the most popular carriers operating from Portland to Colorado

How many flights depart from Portland to Colorado on average per week?

As of March 2026, 76 flights take off from Portland and land in Colorado each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

How many flights depart from Portland to Colorado on average per day?

10 flights are operational daily from Portland to Colorado as of March 2026. The most popular departure time for this route is 1:00PM, with 47% of flights per day taking off in the afternoon.

What airlines fly to Colorado?

Frontier, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Colorado from Portland according to our data. Frontier is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 7 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Colorado?

Prices for flights from Portland Airport to Colorado are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to Colorado?

As of March 2026, there are 7 operators available to choose from for flights from Portland Airport to Colorado.

How old do you have to be to fly from Portland Airport to Colorado?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$60 Cheap Flights from Portland to Colorado in 2026

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:58 am - 3:36 pm

PDX

DEN

2h 38mnonstop

9:10 am - 11:03 am

DEN

PDX

2h 53mnonstop

$87Frontier

Fri, Apr 10 - Fri, Apr 17

12:27 pm - 4:07 pm

PDX

DEN

2h 40mnonstop

10:00 am - 11:52 am

DEN

PDX

2h 52mnonstop

$88Frontier

Sat, Apr 18 - Tue, Apr 21

5:45 am - 11:24 am

PDX

COS

4h 39m

1 stop

11:55 am - 4:07 pm

COS

PDX

5h 12m

1 stop

$177Delta

Tue, Apr 7 - Tue, Apr 14

8:50 am - 4:10 pm

PDX

COS

6h 20m

1 stop

4:45 pm - 11:10 pm

COS

PDX

7h 25m

2 stops

$182Southwest

Tue, Apr 14 - Tue, Apr 21

12:45 pm - 8:45 pm

PDX

COS

7h 00m

2 stops

7:05 am - 1:40 pm

COS

PDX

7h 35m

2 stops

$187Southwest

Tue, Apr 14 - Tue, Apr 21

11:40 pm - 9:27 am

PDX

COS

8h 47m

1 stop

1:39 pm - 9:38 pm

COS

PDX

8h 59m

1 stop

$222American Airlines

Fri, May 1 - Tue, May 5

5:45 am - 11:24 am

PDX

COS

4h 39m

1 stop

7:59 am - 5:10 pm

COS

PDX

10h 11m

2 stops

$243Delta

Tue, Apr 7 - Tue, Apr 14

5:00 am - 12:41 pm

PDX

MTJ

6h 41m

1 stop

1:43 pm - 5:44 pm

MTJ

PDX

5h 01m

1 stop

$251United Airlines

Wed, Apr 29 - Tue, May 5

4:15 pm - 10:17 pm

PDX

GJT

5h 02m

1 stop

6:10 pm - 10:54 pm

GJT

PDX

5h 44m

1 stop

$251United Airlines

Wed, Apr 8 - Wed, Apr 15

5:00 am - 11:04 am

PDX

DRO

5h 04m

1 stop

6:37 pm - 12:34 am

DRO

PDX

6h 57m

1 stop

$268American Airlines

Sat, Mar 28 - Wed, Apr 1

Frontier flights from Portland to Colorado

Our best Frontier deals on Portland to Colorado flight tickets

Frontier

Apr 10

PDX11:58 amPortland

2h 38m

DEN3:36 pmDenver Intl

Apr 17

DEN9:10 amDenver Intl

2h 53m

PDX11:03 amPortland

$87

Frontier

Apr 15

PDX12:28 pmPortland

2h 40m

DEN4:08 pmDenver Intl

Apr 21

DEN10:00 amDenver Intl

2h 52m

PDX11:52 amPortland

$88

Frontier

Apr 17

PDX11:48 amPortland

2h 38m

DEN3:26 pmDenver Intl

Apr 19

DEN8:24 amDenver Intl

2h 56m

PDX10:20 amPortland

$91

United Airlines flights from Portland to Colorado

Our best United Airlines deals on Portland to Colorado flight tickets

United Airlines

Apr 29

PDX5:00 amPortland

2h 38m

DEN8:38 amDenver Intl

Apr 29

DEN9:05 pmDenver Intl

2h 50m

PDX10:55 pmPortland

$119

United Airlines

Mar 26

PDX3:52 pmPortland

2h 33m

DEN7:25 pmDenver Intl

Apr 2

DEN9:05 pmDenver Intl

2h 49m

PDX10:54 pmPortland

$247

United Airlines

Apr 8

PDX4:15 pmPortland

5h 02m

1 stop

GJT10:17 pmGrand Junction Regnl

Apr 15

GJT6:10 pmGrand Junction Regnl

5h 44m

1 stop

PDX10:54 pmPortland

$251

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandDenver

PDX - DEN

PDXDEN

Portland

Fri 4/10

11:58 am-3:36 pm

Nonstop2h 38m

Denver Intl

Fri 4/17

9:10 am-11:03 am

Nonstop2h 53m

$87

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 4/18

12:27 pm-4:07 pm

Nonstop2h 40m

Denver Intl

Tue 4/21

10:00 am-11:52 am

Nonstop2h 52m

$88

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Tue 4/7

5:45 am-11:24 am

1 stop4h 39m

Colorado Springs

Tue 4/14

11:55 am-4:07 pm

1 stop5h 12m

$177

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Tue 4/14

8:50 am-4:10 pm

1 stop6h 20m

Colorado Springs

Tue 4/21

4:45 pm-11:10 pm

2 stops7h 25m

$182

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Tue 4/14

12:45 pm-8:45 pm

2 stops7h 00m

Colorado Springs

Tue 4/21

7:05 am-1:40 pm

2 stops7h 35m

$187

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Fri 5/1

11:40 pm-9:27 am

1 stop8h 47m

Colorado Springs

Tue 5/5

1:39 pm-9:38 pm

1 stop8h 59m

$222

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Tue 4/7

5:45 am-11:24 am

1 stop4h 39m

Colorado Springs

Tue 4/14

7:59 am-5:10 pm

2 stops10h 11m

$243

PortlandMontrose

PDX - MTJ

PDXMTJ

Portland

Wed 4/29

5:00 am-12:41 pm

1 stop6h 41m

Montrose County

Tue 5/5

1:43 pm-5:44 pm

1 stop5h 01m

$251

PortlandGrand Junction

PDX - GJT

PDXGJT

Portland

Wed 4/8

4:15 pm-10:17 pm

1 stop5h 02m

Grand Junction Regnl

Wed 4/15

6:10 pm-10:54 pm

1 stop5h 44m

$251

PortlandDurango

PDX - DRO

PDXDRO

Portland

Sat 3/28

5:00 am-11:04 am

1 stop5h 04m

Durango La Plata County

Wed 4/1

6:37 pm-12:34 am

1 stop6h 57m

$268

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of August is, on average, the cheapest month to fly to Colorado from Portland, with most prices found around $173. The month of September is another great option to travel to Colorado, with average flight prices from Portland averaging around $188.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Portland to Colorado is on a Friday when prices can be found for as low as $316. On the other hand, Monday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $386.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $306. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $351 per ticket.

What is the cheapest Portland to Colorado flight route?

Fly from Portland to Denver Intl for the best Portland - Colorado flight prices

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $216 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Portland for as low as $175 on momondo.

What cabin class options are available on Portland to Colorado flights?

There are 4 cabin classes available to choose from on Portland to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Colorado flights?

No. A direct flight is the cheapest option for a flight between Portland to Colorado.

Cheap Portland to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Colorado

Best Price Found	$141
Fastest flight time	2h 30m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from Portland in the past 72 hours is $141. The best round-trip flight deal from Portland to Colorado found on momondo in the last 72 hours is $262.

The fastest flight from Portland to Colorado takes 2h 30m

Direct flights go from Portland to Colorado every day.

There are 87 airports in Colorado. From Portland there are direct flights to Denver Intl (DEN).

Search flight deals

When did momondo last update prices for flights from Portland Airport to Colorado?
Prices for flights from Portland Airport to Colorado are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Colorado?
As of March 2026, there are 7 operators available to choose from for flights from Portland Airport to Colorado.
How old do you have to be to fly from Portland Airport to Colorado?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Portland to Colorado?
momondo data reveals that the most frequently booked plane model on the route from Portland to Colorado is Boeing 737 MAX 8, representing 19.55% of all bookings. The subsequent popular models are Boeing 737-900 at 13.94%, Boeing 737-800 Passenger/BBJ2 (winglets) at 13.79%, and Boeing 737 MAX 9 at 13.74%.

Best airlines flying from Portland to Colorado

Compare and see reviews for airlines that fly from Portland to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $57	Free Cancellation	Rating 5.7 3,031 reviews	Search Frontier flights
Delta	PriceFrom $88	Free Cancellation	Rating 7.9 8,289 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $98	Free Cancellation	Rating 7.8 2,839 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $139	Free Cancellation	Rating 7.9 12,052 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $140	Free Cancellation	Rating 7.4 9,429 reviews	Search United Airlines flights
Southwest	PriceFrom $147	Free Cancellation	Rating 8.0 4,319 reviews	Search Southwest flights
American Airlines	PriceFrom $228	Free Cancellation	Rating 7.1 11,466 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Colorado?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Colorado. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Colorado with flexible booking policies on momondo?

Flights from Portland to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Colorado?

momondo provides multiple filters to help you find the best flight to Colorado from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Colorado right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Colorado flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular cities in Colorado

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Flights to Las Vegasfrom $23

Flights to Washington, D.C.from $56

Flights to Bostonfrom $72

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Flights to Dallasfrom $60

Flights to Seattlefrom $71

Cheap flights from Portland to Colorado from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Colorado departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Portland to Colorado

What is the cheapest month to fly to Colorado?

What is the cheapest day to depart on your flight to Colorado?

What is the cheapest time of day to depart on your flight to Colorado?

What is the cheapest Portland to Colorado flight route?

How far in advance should I book a flight to Colorado?

What cabin class options are available on Portland to Colorado flights?

Can stopping save me money on Portland to Colorado flights?

What is the cheapest airline that flies from Portland to Colorado?

What airlines fly to Colorado?

How many flights depart from Portland to Colorado on average per day?

How many flights depart from Portland to Colorado on average per week?

Cheap Portland to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Colorado

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

Best airlines flying from Portland to Colorado

Compare and see reviews for airlines that fly from Portland to Colorado with momondo

Why use momondo?

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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