$43 Find Cheap Flights from Oregon to Colorado

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Low seasonApril
High seasonJuly
Cheapest flight$43
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Portland to Denver

FAQs for booking flights from Oregon to Colorado

  • How does KAYAK find such low prices on flights from Oregon 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 Oregon to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oregon 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 Oregon 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 Oregon 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 Oregon 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 Oregon to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Colorado?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Colorado is Denver Intl Airport (DEN), with an average flight price of $231.

  • What is the cheapest day to fly to Colorado?

    Based on KAYAK data, the cheapest day to fly to Colorado is Friday where round-trip tickets can be as cheap as $321. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $413 on average.

  • 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 $234 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. 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 $425.

  • What is the cheapest flight to Colorado?

    The cheapest ticket to Colorado from Oregon found in the last 72 hours was to Denver, at $138 round-trip. The most popular route is Eugene (EUG) to Denver (DEN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $138.

  • What is the cheapest month to fly from Oregon to Colorado?

    The cheapest month for flights from Oregon to Colorado is April, when tickets cost $299 (return) on average. On the other hand, the most expensive months are February and July, when the average cost of round-trip tickets is $414 and $404 respectively.

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

    To get a below average price on the flight from Oregon 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.

  • How long is the flight to Colorado?

    An average nonstop flight from Oregon to Colorado takes 5h 49m, covering a distance of 878 miles. The shortest route is Boise (BOI) to Denver (DEN) with an average flight time of 1h 50m.

  • What are the most popular destinations in Colorado?

    Based on KAYAK flight searches, the most popular destination is Denver (91% of total searches to Colorado). The next most popular destinations are Colorado Springs (3%) and Grand Junction (1%). Searches for flights to Durango (1%), to Montrose (1%) and to Vail (1%) are also popular.

Reviews of the top 5 airlines serving from Oregon to Colorado

 
Need help choosing which airline to fly with from Oregon 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
7.8Comfort
8.1Boarding
7.1Food
8.5Crew
7.1Entertainment
Airline reviews

We have always flown with Alaska when we can. As they have great customer service. This trip we had to transfer to Air LINGUS in Denver to go to Dublin. That’s where things went bad! Our checked luggage didn’t arrive. The process to make a claim was way more complicated than it should be. It took 5 days to recover our luggage. The whole time we couldn’t talk to a real person who could tell us anything. The whole time Alaska blamed Air lingus and vis a versa. No one seemed want to help us. That was the worst part.

2.0 MediocreAnonymous, Jun 2025PDX - DEN
Read more Alaska Airlines reviews

We have always flown with Alaska when we can. As they have great customer service. This trip we had to transfer to Air LINGUS in Denver to go to Dublin. That’s where things went bad! Our checked luggage didn’t arrive. The process to make a claim was way more complicated than it should be. It took 5 days to recover our luggage. The whole time we couldn’t talk to a real person who could tell us anything. The whole time Alaska blamed Air lingus and vis a versa. No one seemed want to help us. That was the worst part.

I'm a platinum member with American Airlines, however, my ticket did not display status and thus I did not board with an early group. I traveled with my two daughters and we were given a row of seats that did not recline. Not the treatment I would have expected for a platinum customer. The flight was also a bit late leaving Portland. Also on my flight to Portland we were not given premium seats. In fact, we were in the last row of the aircraft.

I was at risk of not getting on the flight, as when I presented my boarding pass at the gate, it showed me as not having checked in. I was sent to the desk as the last of the other passengers boarded. The agent there said he could see that I had done all of my part and allowed times recommended, but it showed me as not checked in and he couldn't figure out how to correct it. He actually asked them to hold the flight as he struggled with it. He called for support, someone corrected it, and he printed boarding passes for both flights to reduce further issues. I did get on, and needed to ask someone to exit my seat.

We had a birthday one day off and almost missed the plane Our fault

5 hour delay from Portland to Newark. Boarded and then were told we had to get off and wait five hours for flight. No food vouchers or any other compensation because they said it was an air traffic control issue. Plane is bare minimum like a discount airline. They have free entertainment but you have to get to it on your own device no screens in the seats

Alaska app and website had numerous problems so couldn’t get boarding passes or check seats

Very good. Gate personnel were excellent flight attendants were also able to change my seat at the last minute everyone, courteous, polite, and.

It was horrible. Last minute gate change, delays, more delays and then we had to wait for a stweardess to onboard. No explanation for the wait. No apologies. We got to RDM way past schedule @ 1:30 am!!!! Stressful and exhausting. We'd avoid flying Alaska ever again.

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.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Flight was an hour late, who knows why. It was OK, nothing outstanding.

Only not having an assigned seat was an issue. Rest was great

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

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.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

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.

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.

Book cheap flights from Oregon to Colorado

Recent round-trip flight deals

7/29Tue
nonstopFrontier
2h 39mPDX-DEN
8/5Tue
nonstopFrontier
2h 48mDEN-PDX
$87
9/17Wed
nonstopFrontier
2h 43mPDX-DEN
9/20Sat
nonstopFrontier
2h 44mDEN-PDX
$88
8/23Sat
1 stopDelta
6h 48mRDM-DEN
8/24Sun
1 stopDelta
4h 50mDEN-RDM
$189
9/16Tue
1 stopAlaska Airlines
5h 35mBOI-DEN
9/17Wed
1 stopAlaska Airlines
12h 05mDEN-BOI
$197
7/19Sat
1 stopSouthwest
5h 20mPDX-COS
7/26Sat
1 stopSouthwest
5h 20mCOS-PDX
$197
8/7Thu
1 stopDelta
6h 25mEUG-DEN
8/13Wed
1 stopDelta
4h 50mDEN-EUG
$197
8/20Wed
1 stopAlaska Airlines
5h 13mRDM-DEN
8/22Fri
1 stopAlaska Airlines
5h 26mDEN-RDM
$199
9/20Sat
1 stopSouthwest
4h 10mPDX-COS
9/22Mon
1 stopSouthwest
8h 40mCOS-PDX
$202
7/25Fri
nonstopUnited Airlines
2h 27mRDM-DEN
7/28Mon
1 stopUnited Airlines
7h 41mDEN-RDM
$219
7/31Thu
nonstopUnited Airlines
1h 56mBOI-DEN
8/5Tue
nonstopUnited Airlines
2h 01mDEN-BOI
$223

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Recent one-way flight deals

7/29Tue
nonstopFrontier
2h 39mPDX-DEN
$43
8/6Wed
nonstopFrontier
2h 39mPDX-DEN
$44
9/20Sat
nonstopUnited Airlines
2h 33mPDX-DEN
$79
8/16Sat
1 stopAlaska Airlines
7h 19mPDX-DEN
$88
9/20Sat
1 stopDelta
5h 30mPDX-DEN
$89
11/7Fri
nonstopAlaska Airlines
2h 38mPDX-DEN
$96
8/4Mon
nonstopUnited Airlines
1h 57mBOI-DEN
$99
8/20Wed
1 stopDelta
6h 05mEUG-DEN
$99
9/18Thu
2 stopsSouthwest
9h 00mEUG-DEN
$114
10/18Sat
nonstopSouthwest
1h 50mBOI-DEN
$116

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Last minute flights from Oregon to Colorado

Last minute flight, train and bus deals

7/5Sat
nonstopFrontier
2h 39mPDX-DEN
7/9Wed
nonstopFrontier
2h 48mDEN-PDX
$97
7/4Fri
nonstopFrontier
2h 37mPDX-DEN
7/5Sat
nonstopFrontier
2h 48mDEN-PDX
$98
7/3Thu
nonstopUnited Airlines
2h 27mRDM-DEN
7/8Tue
nonstopUnited Airlines
2h 33mDEN-RDM
$419
7/3Thu
multi-stopDelta
4h 25mPDX-GJT
7/7Mon
multi-stopDelta
3h 52mGJT-PDX
$419
7/5Sat
multi-stopAlaska Airlines
12h 11mBOI-DEN
7/16Wed
multi-stopAlaska Airlines
14h 13mDEN-BOI
$424
7/3Thu
multi-stopUnited Airlines
5h 10mRDM-DEN
7/8Tue
nonstopUnited Airlines
2h 33mDEN-RDM
$429
7/5Sat
multi-stopAlaska Airlines
12h 11mBOI-DEN
7/10Thu
multi-stopAlaska Airlines
6h 20mDEN-BOI
$468
7/3Thu
multi-stopDelta
4h 25mPDX-GJT
7/5Sat
multi-stopDelta
3h 55mGJT-PDX
$479
7/5Sat
nonstopSouthwest
2h 00mBOI-DEN
7/10Thu
nonstopSouthwest
1h 55mDEN-BOI
$489
7/5Sat
multi-stopSouthwest
6h 00mBOI-DEN
7/10Thu
multi-stopSouthwest
6h 40mDEN-BOI
$510

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Everything you need to know for your flight to Colorado

Cabin class types available on flights to Oregon

Cabin classes available on flights to Oregon. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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