$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 4/3. 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, 0 bags

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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Flight Deals

Cheap Flights from Portland to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$87
Aspen
Aspen1 stop$309
Grand Junction
Grand Junction1 stop$251
Durango
Durango1 stop$268
Montrose
Montrose1 stop$251
Hayden
Hayden1 stop$355
Gunnison
Gunnison1 stop$349
Vail
Vail1 stop$280
Denver
Denvernonstop$87
Aspen
Aspen1 stop$309
Grand Junction
Grand Junction1 stop$251
Durango
Durango1 stop$268
Montrose
Montrose1 stop$251
Hayden
Hayden1 stop$355
Gunnison
Gunnison1 stop$349
Vail
Vail1 stop$280

Book Cheap Portland to Colorado Plane Tickets

 
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

Fri, Apr 10 - Fri, Apr 17
Frontier Logo
11:58 am - 3:36 pm
PDX
-
DEN
2h 38mnonstop
Frontier Logo
9:10 am - 11:03 am
DEN
-
PDX
2h 53mnonstop
$87Frontier
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
12:27 pm - 4:07 pm
PDX
-
DEN
2h 40mnonstop
Frontier Logo
10:00 am - 11:52 am
DEN
-
PDX
2h 52mnonstop
$88Frontier
Tue, Apr 7 - Tue, Apr 14
Delta Logo
5:45 am - 11:24 am
PDX
-
COS
4h 39m
1 stop
Delta Logo
11:55 am - 4:07 pm
COS
-
PDX
5h 12m
1 stop
$177Delta
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
8:50 am - 4:10 pm
PDX
-
COS
6h 20m
1 stop
Southwest Logo
4:45 pm - 11:10 pm
COS
-
PDX
7h 25m
2 stops
$182Southwest
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
12:45 pm - 8:45 pm
PDX
-
COS
7h 00m
2 stops
Southwest Logo
7:05 am - 1:40 pm
COS
-
PDX
7h 35m
2 stops
$187Southwest
Fri, May 1 - Tue, May 5
American Airlines Logo
11:40 pm - 9:27 am
PDX
-
COS
8h 47m
1 stop
American Airlines Logo
1:39 pm - 9:38 pm
COS
-
PDX
8h 59m
1 stop
$222American Airlines
Tue, Apr 7 - Tue, Apr 14
Delta Logo
5:45 am - 11:24 am
PDX
-
COS
4h 39m
1 stop
Delta Logo
7:59 am - 5:10 pm
COS
-
PDX
10h 11m
2 stops
$243Delta
Wed, Apr 29 - Tue, May 5
United Airlines Logo
5:00 am - 12:41 pm
PDX
-
MTJ
6h 41m
1 stop
United Airlines Logo
1:43 pm - 5:44 pm
MTJ
-
PDX
5h 01m
1 stop
$251United Airlines
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
4:15 pm - 10:17 pm
PDX
-
GJT
5h 02m
1 stop
United Airlines Logo
6:10 pm - 10:54 pm
GJT
-
PDX
5h 44m
1 stop
$251United Airlines
Sat, Mar 28 - Wed, Apr 1
American Airlines Logo
5:00 am - 11:04 am
PDX
-
DRO
5h 04m
1 stop
American Airlines Logo
6:37 pm - 12:34 am
DRO
-
PDX
6h 57m
1 stop
$268American Airlines
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from Portland found in the last 72 hours was to Denver, at $103 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 $103.

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

The average price for all round-trip flights from Portland to Colorado depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $306 on average. Morning departures are around 14% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $351.

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 $225, 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 August, when tickets cost $173 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $278 and $247 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 Monday is the most expensive. Flying from Colorado back to Portland, the best deals are generally found on Saturday, with Sunday 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 2 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$78
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 2% 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.

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 $141 one-way - $262 round-trip

Reviews of the 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
SouthwestOverall score based on 4319 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
8.6Crew
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

Everything ran like it should. Staff was professional. Looking forward to flying with them again.

Liked the attention and speed when getting wheelchair..........Was assured by phone that my needs would be taken care of and they were with my name.

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

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

Information on your arrival and departure airports