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 39% 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.

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

10 flights are operational daily from Portland to Colorado as of May 2026. The most popular departure time for this route is 8:00AM, with 47% of flights per day taking off at noon.

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

Frontier, Delta, and United Airlines are the most popular carriers operating from Portland to Colorado

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

As of May 2026, 76 flights take off from Portland and land in Colorado each week. The most common flight departure day for this route is Sun, with 21% of weekly flights taking off on this day.

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 May 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.

$89 Cheap Flights from Portland to Colorado in 2026

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Find the cheapest flights from Portland to Colorado

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:35 pm - 4:23 pm

PDX

DEN

2h 48mnonstop

7:00 am - 11:50 am

DEN

PDX

5h 50m

1 stop

$144Frontier

Thu, May 28 - Thu, Jun 4

5:31 pm - 12:38 am

PDX

DEN

6h 07m

1 stop

3:00 pm - 4:46 pm

DEN

PDX

2h 46mnonstop

$150Frontier

Sat, May 23 - Sat, May 30

6:00 pm - 1:15 am

PDX

COS

6h 15m

1 stop

5:35 am - 9:30 am

COS

PDX

4h 55m

1 stop

$217Southwest

Fri, Jun 5 - Sun, Jun 7

5:45 am - 11:15 am

PDX

COS

4h 30m

1 stop

8:14 am - 4:42 pm

COS

PDX

9h 28m

2 stops

$242Delta

Fri, Jun 5 - Mon, Jun 8

5:24 pm - 10:42 pm

PDX

COS

4h 18m

1 stop

6:20 pm - 11:46 pm

COS

PDX

6h 26m

1 stop

$268Delta

Thu, Jun 18 - Sun, Jun 21

5:00 am - 12:44 pm

PDX

MTJ

6h 44m

1 stop

3:25 pm - 9:10 pm

MTJ

PDX

6h 45m

1 stop

$271United Airlines

Sun, May 24 - Thu, May 28

11:43 pm - 10:28 am

PDX

GJT

9h 45m

1 stop

6:55 pm - 11:08 pm

GJT

PDX

5h 13m

1 stop

$271American Airlines

Tue, Jun 2 - Wed, Jun 10

5:05 am - 11:35 am

PDX

GJT

5h 30m

1 stop

4:56 pm - 12:50 am

GJT

PDX

8h 54m

1 stop

$280American Airlines

Sat, May 30 - Sat, Jun 6

4:07 pm - 10:04 pm

PDX

COS

4h 57m

1 stop

6:32 pm - 10:52 pm

COS

PDX

5h 20m

1 stop

$284United Airlines

Wed, Aug 12 - Mon, Aug 17

10:25 am - 3:40 pm

PDX

COS

4h 15m

1 stop

4:45 pm - 11:00 pm

COS

PDX

7h 15m

1 stop

$292Southwest

Sat, May 23 - Wed, May 27

Frontier flights from Portland to Colorado

Our best Frontier deals on Portland to Colorado flight tickets

Frontier

May 28

PDX12:35 pmPortland

2h 48m

DEN4:23 pmDenver Intl

Jun 4

DEN7:00 amDenver Intl

5h 50m

1 stop

PDX11:50 amPortland

$144

Frontier

May 23

PDX5:31 pmPortland

6h 07m

1 stop

DEN12:38 amDenver Intl

May 30

DEN3:00 pmDenver Intl

2h 46m

PDX4:46 pmPortland

$150

Frontier

May 25

PDX12:35 pmPortland

2h 48m

DEN4:23 pmDenver Intl

Jun 1

DEN6:10 amDenver Intl

5h 10m

1 stop

PDX10:20 amPortland

$152

Delta flights from Portland to Colorado

Our best Delta deals on Portland to Colorado flight tickets

Delta

Jun 5

PDX5:45 amPortland

4h 30m

1 stop

COS11:15 amColorado Springs

Jun 8

COS8:14 amColorado Springs

9h 28m

2 stops

PDX4:42 pmPortland

$242

Delta

Sep 3

PDX6:30 amPortland

9h 44m

2 stops

COS5:14 pmColorado Springs

Sep 8

COS5:55 pmColorado Springs

5h 46m

1 stop

PDX10:41 pmPortland

$247

Delta

Jun 18

PDX5:24 pmPortland

4h 18m

1 stop

COS10:42 pmColorado Springs

Jun 21

COS6:20 pmColorado Springs

6h 26m

1 stop

PDX11:46 pmPortland

$268

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandDenver

PDX - DEN

PDXDEN

Portland

Thu 5/28

12:35 pm-4:23 pm

Nonstop2h 48m

Denver Intl

Thu 6/4

7:00 am-11:50 am

1 stop5h 50m

$144

PortlandDenver

PDX - DEN

PDXDEN

Portland

Sat 5/23

5:31 pm-12:38 am

1 stop6h 07m

Denver Intl

Sat 5/30

3:00 pm-4:46 pm

Nonstop2h 46m

$150

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Fri 6/5

6:00 pm-1:15 am

1 stop6h 15m

Colorado Springs

Sun 6/7

5:35 am-9:30 am

1 stop4h 55m

$217

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Fri 6/5

5:45 am-11:15 am

1 stop4h 30m

Colorado Springs

Mon 6/8

8:14 am-4:42 pm

2 stops9h 28m

$242

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Thu 6/18

5:24 pm-10:42 pm

1 stop4h 18m

Colorado Springs

Sun 6/21

6:20 pm-11:46 pm

1 stop6h 26m

$268

PortlandMontrose

PDX - MTJ

PDXMTJ

Portland

Sun 5/24

5:00 am-12:44 pm

1 stop6h 44m

Montrose County

Thu 5/28

3:25 pm-9:10 pm

1 stop6h 45m

$271

PortlandGrand Junction

PDX - GJT

PDXGJT

Portland

Tue 6/2

11:43 pm-10:28 am

1 stop9h 45m

Grand Junction Regnl

Wed 6/10

6:55 pm-11:08 pm

1 stop5h 13m

$271

PortlandGrand Junction

PDX - GJT

PDXGJT

Portland

Sat 5/30

5:05 am-11:35 am

1 stop5h 30m

Grand Junction Regnl

Sat 6/6

4:56 pm-12:50 am

1 stop8h 54m

$280

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Wed 8/12

4:07 pm-10:04 pm

1 stop4h 57m

Colorado Springs

Mon 8/17

6:32 pm-10:52 pm

1 stop5h 20m

$284

PortlandColorado Springs

PDX - COS

PDXCOS

Portland

Sat 5/23

10:25 am-3:40 pm

1 stop4h 15m

Colorado Springs

Wed 5/27

4:45 pm-11:00 pm

1 stop7h 15m

$292

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 December is, on average, the cheapest month to fly to Colorado from Portland, with most prices found around $29. The month of January is another great option to travel to Colorado, with average flight prices from Portland averaging around $50.

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 $315. 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 $392.

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 $295. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $357 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 from Portland 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 $224 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 $182 on momondo.

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	$152
Fastest flight time	2h 29m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from Portland in the past 72 hours is $152. The best round-trip flight deal from Portland to Colorado found on momondo in the last 72 hours is $300.

The fastest flight from Portland to Colorado takes 2h 29m

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

Frequently asked questions about flying from Portland to Colorado

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 May 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 17.68% of all bookings. The subsequent popular models are Boeing 737-900 at 14.23%, Airbus A321neo at 13.34%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 12.77%.

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 $56	Free Cancellation	Rating 5.6 2,969 reviews	Search Frontier flights
Delta	PriceFrom $88	Free Cancellation	Rating 7.9 8,460 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $98	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $139	Free Cancellation	Rating 7.9 12,321 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $145	Free Cancellation	Rating 7.4 9,682 reviews	Search United Airlines flights
Southwest	PriceFrom $147	Free Cancellation	Rating 8.0 4,310 reviews	Search Southwest flights
American Airlines	PriceFrom $228	Free Cancellation	Rating 7.1 11,674 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

Flights to New Yorkfrom $71

Flights to Los Angelesfrom $51

Flights to Orlandofrom $52

Flights to Miamifrom $50

Flights to Chicagofrom $69

Flights to San Franciscofrom $76

Flights to Las Vegasfrom $56

Flights to Washington, D.C.from $55

Flights to Bostonfrom $92

Flights to Atlantafrom $50

Flights to Dallasfrom $76

Flights to Fort Lauderdalefrom $52

Cheap flights from Portland to Colorado from $89

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 6/5. 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 from Portland to Colorado?

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

Frequently asked questions about flying from Portland to 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.

Find better results for your trip to Colorado

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