$78 Find Cheap Flights from Portland to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Colorado departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Colorado.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Colorado.
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Flights Deals

Best Colorado Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$130
Aspen
Aspen1 stop$249
Grand Junction
Grand Junction1 stop$229
Durango
Durango1 stop$238
Montrose
Montrose1 stop$314
Gunnison
Gunnison1 stop$719
Vail
Vail1 stop$229
Denver
Denvernonstop$130
Aspen
Aspen1 stop$249
Grand Junction
Grand Junction1 stop$229
Durango
Durango1 stop$238
Montrose
Montrose1 stop$314
Gunnison
Gunnison1 stop$719
Vail
Vail1 stop$229

Cheap Flights from Portland to Colorado

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Colorado

Tue, Aug 12 - Sun, Aug 17
Frontier Logo
6:35 am - 10:14 amPDX-DEN
2h 39mnonstop
Frontier Logo
8:27 am - 10:11 amDEN-PDX
2h 44mnonstop
$130Frontier
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Fri, Sep 26 - Sun, Sep 28
Frontier Logo
6:05 am - 9:46 amPDX-DEN
2h 41mnonstop
Frontier Logo
10:29 pm - 12:16 amDEN-PDX
2h 47mnonstop
$131Frontier
Find Deal
Wed, Sep 10 - Fri, Sep 12
Southwest Logo
7:00 am - 3:40 pmPDX-COS
7h 40m1 stop
Southwest Logo
1:10 pm - 7:35 pmCOS-PDX
7h 25m1 stop
$185Southwest
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Wed, Sep 3 - Tue, Sep 16
Alaska Airlines Logo
1:24 pm - 8:27 pmPDX-DEN
6h 03m1 stop
Alaska Airlines Logo
11:40 am - 1:23 pmDEN-PDX
2h 43mnonstop
$187Alaska Airlines
Find Deal
Wed, Sep 10 - Fri, Sep 12
Southwest Logo
7:00 am - 5:00 pmPDX-COS
9h 00m2 stops
Southwest Logo
11:45 am - 4:25 pmCOS-PDX
5h 40m1 stop
$190Southwest
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Mon, Aug 11 - Fri, Aug 15
United Airlines Logo
6:43 pm - 11:52 pmPDX-COS
4h 09m1 stop
United Airlines Logo
5:30 am - 9:32 amCOS-PDX
5h 02m1 stop
$205United Airlines
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Mon, Sep 8 - Mon, Sep 15
Alaska Airlines Logo
1:24 pm - 9:47 pmPDX-DEN
7h 23m1 stop
Alaska Airlines Logo
7:33 pm - 11:59 pmDEN-PDX
5h 26m1 stop
$216Alaska Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
United Airlines Logo
3:54 pm - 11:59 pmPDX-COS
7h 05m2 stops
United Airlines Logo
6:20 pm - 10:56 pmCOS-PDX
5h 36m1 stop
$222United Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
American Airlines Logo
8:01 am - 7:06 pmPDX-EGE
10h 05m1 stop
American Airlines Logo
8:06 am - 4:49 pmEGE-PDX
9h 43m1 stop
$229American Airlines
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Wed, Aug 6 - Mon, Aug 11
American Airlines Logo
5:05 am - 11:15 amPDX-GJT
5h 10m1 stop
American Airlines Logo
5:00 am - 10:44 amGJT-PDX
6h 44m1 stop
$229American Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Portland to Colorado flights

Get data-powered insights and trends into flights from Portland to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Portland to Colorado flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Portland to Colorado.

The cheapest ticket to Colorado from Portland found in the last 72 hours was to Denver, at $116 round-trip. The most popular route is from Portland (PDX) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $116.

Can I save money by flying with a layover from Portland to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $488, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Portland to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Colorado is September, when tickets cost $137 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $232 and $226 respectively.

What’s the cheapest day of the week to fly from Portland to Colorado?

The average price of all round-trip flights from Portland to Colorado clicked on KAYAK for each day over the last 12 months.

For Portland to Colorado, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Colorado back to Portland, the best deals are generally found on Saturday, with Monday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Colorado, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$78
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Portland to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Portland to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $232 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $428.

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Portland to the following destinations at these prices or less: Denver $137 one-way - $210 round-trip

Top 5 airlines serving from Portland to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Portland to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Colorado? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
8.1Boarding
8.5Crew
7.1Entertainment
7.8Comfort
Airline reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

10.0 Excellentmarlene, Jun 2025PDX - SMF
Read more Alaska Airlines reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

Check in, they should have told me that upon arrival i needed to exit the secure area and re-check in with Eva Air. I wasn't sure what to do upon arrival at S.F.

The direct service from Logan to PDX made travel so easy, I really appreciate this route. Pilots were very communicative with passengers about conditions and expectations. Everyone on staff was pleasant and helpful. Boarding was easy and efficient.

Flight last minute delayed 2 hours for crew calling out sick

Husband was new to the wheelchair accommodations this trip. What a blessing that was. All employees were helpful and customer service was excellent

Seats are still too crowded and uncomfortable on long flights like this cross country one.

Laney was very helpful. I am computer illiterate. She helped me obtain a boarding pass and preferred seat. She was warm, friendly, helpful, and smiled. I was impressed.

The actual flight I was rescheduled onto was from Seattle to Bozeman. The flight itself was fine, but due to delays/air traffic issues i spent the day hanging out at the Seattle airport and had to miss a day of work.

OUr pilot was very good and also a good landing in a very gusting Phoenix. Most important.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Canceled original flight and wasn't clear on rebooked flight. Had to pay for bags which was more than the flight itself. Normal help, drinks etc. you have to pay for. This is Not a low cost airline.

Everything you need to know for your flight from Portland to Colorado

Information on your arrival and departure airports

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