Find cheap flights from Oregon to Colorado

Find cheap flights from Oregon to Colorado

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Round-trip
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Boston (BOS)
Colorado
Thu 8/5
Thu 8/12
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Good to know

Low season

AugustBest time to beat the crowds with an average 6% drop in price.

High season

DecemberMost popular time to fly with an average 18% increase in price.

Average price round-trip

$480(avg. price over the last 2 weeks)

Good deal round-trip

$77or less

Good deal one-way

$45or less

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Top 5 airlines serving from Oregon to Colorado

Scores according to KAYAK customer reviews

8.3
Alaska Airlines
Overall score based on 29,525 reviews
8.5
Boarding
8.3
Comfort
8.8
Crew
7.9
Entertainment
7.9
Food
Airline reviews

Pros: "yes"
Cons: "Lost baggage in Kathmundu"

Pros: "Small space but pretty comfortable."
Cons: "Nothing"

Pros: "Comfortable and reasonably spacious."

Cons: "could be cleaner, noticed lots of crumbs on the floor"

Pros: "Very comfortable for such a long trip"

Cons: "Smooth and uneventful"

Cons: "Food"

Cons: "None"

Cons: "Everything"

Cons: "Wooo that was bumpy!"

Cons: "My luggages was not come at the destination. We don’t have clothes to changes for 2 days."

Pros: "I liked being able to carry on my bag that I purchased from the airport just so I wouldn’t have to check a bag. Spent a good sum of money doing so."
Cons: "Checking my bag just so the airport could charge us more money."

Pros: "Overall, I had a pleasant experience."
Cons: "N/A"

Pros: "Everything was easy and normal. I felt everyone was treated well."

Pros: "The boarding process. The take off and the landing were great."
Cons: "Not enough room between passengers. Especially when you do not know the person next to you. More elbow room would be great. This is for the general seating. The isles are narrow too."

Pros: "Very friendly attendants Smooth ride !"

Pros: "Same as above."

Cons: "Delta has better movie selection and that’s not good ."

Cons: "45 minute delay due to fog"

Pros: "Nothing went wrong."
Cons: "Turbulence. Haha!"

Pros: "Everything!"
Cons: "Nothing"

Cons: "Lost luggage"

Pros: "The extra seat next to me."
Cons: "The fact that my baggage got left in Portland."

Pros: "normal."
Cons: "."

Pros: "I liked that a pillow and blanket was provided- but the temperature on the plane was way too hot to use them"
Cons: "The temperature on the plane was way too hot"

Pros: "using passport as my ID :)"

Cons: "Gate 11c."

Pros: "I loved how fast I got my luggage at the baggage claim. I was very impressed."

Cons: "Nada"

Pros: "Empty plane!"

Pros: "No delay, nice n comfortable"

Pros: "Good attention"

Pros: "What a nice surprise to get a drink and a snack."

Pros: "Loved the peaceful journey"

Pros: "Everything went smoothly. No trouble whatsoever."
Cons: "Nothing to complain about."

Cons: "Trays,overhead were dirty"

Pros: "It got cancelled due to 3 inch of snow. And I missed work in Denver because of it. Very inconvenient"
Cons: "I would like to not have it cancel"

Pros: "Everything"
Cons: "Nothing, everything was perfect. Thank you Alaska Airlines. We'll use them again in the future."

Pros: "good"

Pros: "Up & down in 45 minutes."

Pros: "Alaska airlines is absolutely wonderful. Friendly, happy and simple..."

Pros: "Went very well. Not stupid"

Cons: "Charging for food is lame."

Pros: "Had no issues with flying with this airline, everything went well!"

Cons: "It was the worst travel experience of my life."

Cons: "Old, rickety plane."

Cons: "Our suitcases got lost"

Pros: "Good staff"

Pros: "It was great, professional, short."

Pros: "My favorite airline to travel from Denver to Puerto Rico, round trip, and in Atlanta I will make the stopover, I also feel so safer to travel with my cat ... they are the best airline in everything"
Cons: "Let people who travel with pets earn extra points for taking them with Delta"

Pros: "Enthusiastic and honest/informative pilot"

Pros: "Delta is doing a great job keeping everything calm and clean during this pandemic!"

Cons: "Nothing all excellent"

Pros: "Crew was great, comfort+ definitely has more leg room."
Cons: "Beer not guaranteed on flight for Delta comfort plus."

Cons: "It was great! Nice job Delta !"

Pros: "Christina brown was amazing at gate"

Pros: "Good services in anticipating our next leg"

Pros: "Amazing crew and food and entertainment selection!"
Cons: "Honestly nothing it was perfect"

Pros: "The crew was great and the free entertainment was great"
Cons: "Bring back pillows and blankets especially on red eyes out of Anchorage"

Pros: "Plane was clean & modern"
Cons: "More leg room"

Pros: "Seats were comfortable but crowded. Was nice to have the built in screen for entertainment."
Cons: "Did not like being bumped to a flight with a five hour layover in SLC. Travel day was already very long. We booked the flight originally based on the shorter layover of an hour and a half. Seemed very inconsiderate."

Pros: "Flight attendants thank SkyMiles members by name at some point during the trip, very friendly."

Cons: "No meal option and my video screen volume did not work"

Cons: "Seats did NOT recline, which seems to be a pretty poor planning for a red eye flight."

Pros: "Fantastic crew!"

Pros: "great trip and crew"

Pros: "Entertainment"
Cons: "Boarding at JFK.Always messy"

Cons: "Cramped"

Pros: "We boarded close to on time, no hassles. Allowed my husband and me (retired military) to board early, thank you."
Cons: "LAX security is awful. We never left the airport (arrived LAX from Sydney AU) yet were forced thru security again. Had to remove shoes, was scanned and "frisked" by TSA to get to Denver. To go to Australia, Denver TSA waived the removal of shoes, skipped the scan for the metal detector and no one touched me, ditto for LAX on the trip to Sydney. Where's the uniformity or standards for TSA?? Why did I have to be subjected to this garbage on the way home?? This is why I despise flying. It makes no sense to me. This ruined what was a great vacation."

Pros: "Flight was quiet and comfortable."
Cons: "Felt claustrophobic after a while because guy in seat next to me was rather large and spilling into my seat"

Pros: "Not much. Boarding by "zone" works ok, but is no quicker than most other boarding methods."
Cons: "Boeing 767-400ER seats had no leg room for 6'+ traveller like me. The entertainment system was so old that there were no 115v outlets or USB ports. On a 7-hour flight, that is a significant problem for travellers today with multiple electronic devices. Finally, we were not told in advance that we had to go through security twice and through US Customs BEFORE leaving Dublin. So, the 6-hour layover at JFK was a complete waste of our time as we did not have to go through Customs there."

Pros: "Free drinks and snacks - great entertainment system (please read this Frontier)!"
Cons: "Boarding process was agonizingly slow and ineffective"

Cons: "I was placed on an earlier flight as soon as I arrived at the Portland airport. The flight was full, there was no room for my bag in the overhead bins. The bag was checked, not to just Seattle but all the way to Venice. Well, surprise, surprise, the bag was lost on the way to Venice. KLM does not allow enough time in Amsterdam for luggage to make a connecting flight."

Pros: "Every Delta employee that we encountered was professional and pleasant"

Pros: "The service was excellent."

Pros: "Excellent Service."

Pros: "The entertainment was really good and the service was excellent. Flight attendants were great. Enjoyed my complimentary beverage and on time departure and arrival."
Cons: "It was hard to understand what zone was boarding. Hard to hear and understand made It impossible. And the plane seemed smaller, seats were very close to one another, and it was difficult to get comfortable. I'm not big either."

Pros: "On time, free beer , good price"
Cons: "No movie, no charging telephone"

Pros: "Great in every way"

Pros: "Food"
Cons: "Leg room"

Pros: "It got me home, eventually."
Cons: "Poor communication, a 6 hour delay followed by a 7 hour layover (during which we had to sleep on an airport floor because Delta couldn't offer us any hotel vouchers). Gate agents disappeared after 7pm becuase they were due to be done with their shifts when our flight was originally supposed to leave at 6 pm. It felt like we were trapped in the movie The Terminal. Oh! And our bag was misrouted, because that was just how things went those 2 days. All in all a 6 hour trip turned into 18 hours. I could have driven home in that amount of time!"

Pros: "First leg from San Diego was excellent."
Cons: "Arriving in SLC discovered out flight to Denver was CANCELLED! Had to reschedule to the next day. Not fun!"

Pros: "really helpful and friendly service and nice seats."

Pros: "none of it"
Cons: "It was Terrible I will never do it again"

Pros: "Better seats"
Cons: "The seats"

Pros: "Crew were good, flight on time, free drinks"
Cons: "Nothing"

Cons: "TSA Pre-check info not loaded on flight from LAX to PDX."

Pros: "Crew was all very nice"
Cons: "Flying is always uncomfortable"

Cons: "Condition of the airplane"

Cons: "Excellent service excellent pilot"

Pros: "Flights were both on time and boarded quickly. Crew was wonderful!"

Pros: "fast efficient and directions are pretty clear tons of delicious food available at PDX to bring plane was comfortable and roomy"
Cons: "long lines through security"

Pros: "Getting to the correct destination."
Cons: "The fact that the lack of knowledge regarding international travel visas by the counter staff and supervisor meant that two days of the vacation were lost. Upon arrival in China the 144 hour travel visa was granted with no problem within minutes, but the U.S. staff was completely befuddled by the possibility. The interrogation was completely stressful and resulted in a reschedule of the original flight and during the second attempt at flying even an email from the U.S. consulate with a link to the Shanghai/Chinese government immigration site was deemed "not official enough". i will be expecting proper compensation. I was once given an $850 travel voucher for voluntarily giving up my seat, and was flown first class to Hawaii, given 4 star accomodation and then flown first class on to China within 48 hours. This was an involuntary bump from our chosen flight time, all because of a lack of knowledge about current visa regulations and international law on the part of the check in staff. We have been loyal Delta users for over 15 years, and this was the biggest blunder ever. Also humiliating and extremely frustrating, stressful and a big problem with fulfilling our travel plans between son and father."

Pros: "Crew"
Cons: "Seating has gotten WAY too tight. Will not do that again ... discomfort, inability to even stretch a little bit caused painful nerve flare?"

Cons: "long wait and delayed flight"

Pros: "Kindness and politeness, on time lots of explaining"
Cons: "Beyond seat space all was perfect"

Pros: "WiFi, good flight attendants"
Cons: "Would like to see Direct TV along with Delta Suite so can watch live TV"

Pros: "Very professional and caring."

Pros: "We didnt have food or entertainment because the flight was short."
Cons: "There was nothing that I didn't like."

Cons: "Feed me"

Pros: "Amazing crew. Departed and arrived on time."

Cons: "Less crowded."

Pros: "Crew"
Cons: "Decaf tea"

Pros: "Being relatively on-time was nice for a change."
Cons: "Seats are tight / uncomfortable. Crew could be better at spotting intoxicated passengers and not continuing to serve them."

Pros: "Everything"
Cons: "Nothing"

Pros: "Crew seemed friendly and considerate"
Cons: "Flight from SLT was delayed by weather, so our flight left almost one hour late."

Pros: "amazing seat and awesome crew couldn't ask for more"

Pros: "Arrived early with great service which is most important when flying."
Cons: "Entertainment was not on par with competitors like Delta, especially on a long flight. Movies depended on downloading the gogo app before you boarded which most were not aware of until we were airborne."

Pros: "The seat was cormfortable and the entertainment was dope!"
Cons: "Communication. The pilot did not say when he was landing and considering it was a rough landing it would have been helpful to say. He said we shall be landing like 40minutes before Then quiet"

Cons: "Bigger seat"

Pros: "The most cramped seats ever"

Pros: "WiFi"
Cons: "Had to take shuttle to other side of airport which took over an hour. Very very poor experience. Also, Seats had no room pull down table."

Pros: "The flight crew was terrific, and the pilot provided good information on the cause of the delay, and expected deoarture and arrival."
Cons: "We were 80 minutes late leaving Portland. Fortunately I did not have a connecting flight and the late arrival was a nuisance and not a problem."

Cons: "The flight crew from PDX to CLT were not very customer service friendly. I was quite underimpressed."

Pros: "Everything was ok."
Cons: "very little service"

Pros: "Great service and sweet attendants"
Cons: "Person next to me was a little large and it was uncomfortable."

Cons: "Delayed for mechanical."

Pros: "I loved the attitude and helpful approach of the female flight attendant working the AA gate for the flight I took from DFW to COS last night (6/13). Truthfully, it was almost like I was back with Southwest. She was kind, calm, polite, efficient, and capable. Very rare in my experience with American Airlines yesterday. Interacting with her was refreshing."
Cons: "Getting home to Colorado Springs at 11:30 PM, taxiing for 15-20 minutes, and then waiting another 20-30 for checked luggage! Never have I waited that long during and after a Southwest flight! AA could truly learn something from their more modest counterpart. I have all but decided to resume my drives to Denver every other week rather than risk more and more time and poor experiences with AA flying in-and-out of Colorado Springs."

Pros: "The crew was nice and so was the American Airlines customer service office in Phoenix"
Cons: "I didn’t like the male and female check in people in Portland. They sat there and watched me for an hour not telling me I could not use cash to check in my luggage at the gate after they told me it was double the amount to check it in at the gate. The sight u use on the boarding pass u download on the phone is not clear. It says baggage fee +$25.00. I thought it was 25.00 till the women in Phoenix showed me the + sign. She said “it is confusing”. I did not buy the ticket because it was for an unexpected funeral of my sister. My other sister did so I didn’t see all the stuff from Travelocity. After telling me it would be $50.00 the check in male and female at the gate saw me sitting there for an hour and never told me I couldn’t pay cash. By the time it was boarding time if a nice woman did not offer to use her credit card and I have her the $50 cash I would have missed my flight. The manager at the gate in Portland even told me I would miss my flight. The two check in staff at the gate said “well we didn’t know you only had cash” and they weren’t even concerned that I was going to miss my flight. It would of been nice of them to tell me this when I sat there for an hour after they told me They we’re doubling the price. I would of had time to go back through security, only pay $25.00 and the other nice passenger would have not had to use her credit card. Very rude and poor service especially after a sad occasion of burying your sister!"

Cons: "Seats are really uncomfortable. My lower back hurt by arrival time."

Pros: "Quick boarding"
Cons: "Flight attendant was very brash. Guy next to me smelled like an ashtray which made everything worse."

Pros: "Everyone was nice"
Cons: "No gluten free snacks. Flight was late"

Pros: "A nice uneventful trip"

Pros: "TSA PRE√ went fast and easy."
Cons: "Seats are miserable to try to sleep on an overnighter."

Pros: "Great service"

Pros: "Flight was one time. Flight crew was also polite and attentive."
Cons: "Plane was more cramped than the flight to Portland, even though both planes were 737's."

Pros: "Crew was nice."
Cons: "Ran out of sandwiches on PDX to CLT leg. ☹️"

Pros: "Entertainment Captain Food"

Pros: "Nice clean plane prompt w drinks and food great attendants"
Cons: "Nothing. All was excellent"

Pros: "Entertainment and meals"
Cons: "Crew could of been friendlier"

Pros: "We didn't crash."
Cons: "No safety briefing for infants, rude gate staff, primitive fleet, terrible customer service at all levels."

Cons: "Holding pattern over Dallas for 45 minutes."

Pros: "The in flight entertainment was perfect, new, and relevant. I also had an empty seat between myself and another passenger so my legs weren't as cramped."

Pros: "Ticket agents at all airports were helpful and very considerate."
Cons: "We were not able to print our boarding passes the day before as expected per the website and purchase docs for the tickets, despite providing passport numbers (several times) and Global Entry registrations. Had to go to a ticket desk at first departure and third departure points to have them printed, with no explanations given. Also not allowed to choose our seats for the third leg. Food was barely edible. Paid extra for roomier seats on one leg, making it more comfortable, but were extremely tight on another leg which had many empty seats scattered throughout the cabin. Cabin attendants seemed more interested in pushing items that generated revenue than providing the ones that came with the ticket (which is never cheap to begin with)."

Pros: "Nothing"
Cons: "Every single bit. Was horrible and the crew was just aweful."

Pros: "The crew is caring and attentive. AA is upgrading all their planes and the individual monitors so you can watch and/or listen to any entertainment you wants. Plane left on time and arrive early, making transfer less stressful."
Cons: "Nothing."

Pros: "."

Pros: "Timeliness"
Cons: "Nothing"

Pros: "Entertainment and great beverage options"

Pros: "Comfort, convienience. Great service. Will fly again."

Pros: "The switch up w amaerican air Can't find flight for check in no one is on the phone over night. Finally figured out the prob. Did like amer air And all the shuttling. Chaos"

Pros: "The flight was on time, and the crew was friendly."
Cons: "The boarding was very disorganized and took a long time, and there was no silverware on board, which I needed."

Pros: "Comfortable seats"
Cons: "Lack of entertainment and no free WiFi. Also food choice was not the greatest"

Pros: "The flight attendants were super nice. The flight went smoothly."
Cons: "Let's get some tvs on the backs of the seats!"

Pros: "Pretty comfortable"

Pros: "I fell asleep on the trip so that was nice."
Cons: "The seats are pretty uncomfortable for tall people."

Pros: "From getting called stupid by Linda B in the phl airport bc I used the first class check-in computers vs the regular ones, then she says "what you can't spell"? After I asked for her name, what a horrible overall experience from American airline s. Won't ever fly your airline again. I'll pay more money to avoid your company.."
Cons: "Zero entertainment on flighta out to weSr coast. Plane was very hot during red eye coming back."

Pros: "Nothing"
Cons: "Ticket agent would not let me pay for up grade was first flight for me to fly with my wife she sat in first class while I was at the back of the plane!! And there was a seat available for me in first class he just wouldn't let me have it I would not recommend American to any one"

Cons: "Numerous delays and disappointments. Two delays before boarding. Another long delay after boarding waiting for paperwork to be completed. Long taxi period. Waited over half hour for baggage claim conveyor to start rolling."

Cons: "WiFi"

Cons: "A little late getting started, otherwise OK."

Cons: "Bad smell"

Cons: "Airplane is too old"

Pros: "My club membership....lord knows you need it with United"
Cons: "Delayed past the point of no return....where do you want to spend the night?"

Cons: "Sitting on tarmac for 30-40 min"

Pros: "There wasn't any delays. We even got to destination earlier"

Pros: "It was fine."

Pros: "Fast. Easy. Gave me free seat with more room"
Cons: "Such a tiny plane.... crowded. Made you pay for wifi."

Cons: "Both flights were late, seriously late."

Pros: "the soda water was good."
Cons: "It was late, as almost all United flights are. sad."

Pros: "The crew in air Canada is awesome! They were really great and friendly. I'm impressed with their impeccable service even if it was a short flight to Vancouver."
Cons: "Flight was delayed."

Cons: "Plane departed 2 hrs late,taxied 40 min in San Fransisco for lack of access to gate"

Pros: "It was a new plane ...but the same old rules..."

Cons: "Terrible uncaring old waitresses overweight, no room for luggage no room for even walk in the plane, kept asking to turn off devices when it is well known devices don't cause any problem. No free internet. Old tired planes, terrible third world airline."

Pros: "Got everything we needed."
Cons: "No complaints."

Pros: "It was spacious."
Cons: "No free Wi-Fi."

Pros: "WIFI allowed access to imessage"
Cons: ""Free" movies and TV didn't work"

Cons: "Multiple delays"

Pros: "Food was good"
Cons: "Seating and maybe some different reading material"

Pros: "On time"
Cons: "No Free baggage no free food"

Cons: "We had to check our hand luggage and be charged EUR120.00 We should have been aware of this before we obtained the boarding pass..."

Pros: "Friendly, comfortable service"

Cons: "Plane was hot no air and super uncomfortable"

Cons: "Had to circle 3 time before landing due to air traffic."

Pros: "The sunrise"
Cons: "I was on the wrong side of the plane!"

Cons: "Crowded"

Cons: "Very bumpy ride....but I realize that can't be helped"

Pros: "Stroopwaffle!"
Cons: "Cramped plane. Not enough space. Late boarding and then sat on the tarmac for a while."

Pros: "The exit isles were comfortable"
Cons: "No free food service and the menu was unappealing and extraordinarily overprice! The bathroom was dirty and toilet unflusable...garbage can overflowing and dirty paper towels everywhere !"

Pros: "I liked being so welcomed even though I am scared of flights."

Pros: "Best company"

Pros: "Thanks. On time. No problems"

Pros: "Smooth ride"
Cons: "Snack was a ridiculous cookie. Lame."

Pros: "On time"

Pros: "Great all around!!!"

Cons: "Very bad food and seating"

Pros: "Comfortable and on time"

Pros: "Flew on Delta Airlines"
Cons: "Had to run to Delta and barely made that connection."

Cons: "Check in staff was dismissive and not helpful at all at first."

Pros: "It was great. Absolutely no complaints"

Cons: "Can't fit in seat"

Pros: "I like that they waited for me before they took off"

Pros: "Smooth"

Pros: "Everything from check in to breakfast to boarding was smooth and effortless at PDX. The restaurants are layed out in a smart configuration with plenty of options on either side of security. The staff are friendly and the travelers in the airport are generally personable and in a good mood, which is a stark contrast to the majority of the nation's airports."
Cons: "The boarding process at the United gate could have been more expeditated."

Pros: "Was a nice trip"
Cons: "All was good"

Pros: "Ok time"
Cons: "Had to check carry on bag"

Pros: "N/A"
Cons: "N/A"

Pros: "Great"

Pros: "Everything was perfect"

Cons: "Missed the flight, so N/A but am interested in a voucher for the future perhaps or some sort of credit to apply to a future flight?"

Cons: "Bring back the TVs"

Pros: "Got home safely"
Cons: "Both ways were delayed with no explanations"

Pros: "We were a little early, which was nice."
Cons: "The flight attendants spent most of the flight giggling at the front of the plane, and had to stop and restart several announcements after saying the wrong thing or having to take a break to stop laughing on the intercom. They also gave me a credit card pitch over the intercom, which was really annoying. The plane was pretty dirty, my tray was really gross with white stuff all over it, and the trash in the bathroom was overflowing, so I had to stuff my paper towel in there to get it to fit. I just wanted a cheap airline, but they split up your group unless you pay extra, and you have to pay for EVERYTHING, including any drinks or snacks. Bags were expensive. I ended up paying almost $700 on a flight that was supposed to be about $450. $21 each way per person to sit with eachother, like $50 for a single checked back each way, blah blah blah. Poor experience, and it was MORE expensive than the other flights with bags and seats included. The lines were also extremely long with only a single person at each stand in each airport."

Pros: "Pdx is a great airport"
Cons: "Getting charged for EVERYTHING with frontier. Pretty classless company."

Cons: "It showed in my booking that I can carry a Carryon bag but had to oay ectra 50$ for the same as only a personal item was allowed. I found the service totally unsatisfactory. The website shouldn't make false claims if they cannot adhere to it. I will definitely avoid using this for my bookings again."

Cons: "I showed up an hour before my flight with no luggage to check or carry on. The line to TSA was almost nonexistent and the gate was close. The auto check in told me to go to frontiers desk to check in. No one was at any of the frontier check in counters event though every other airline had at least one person at theirs. There was a sign that said I was too late to redeem my ticket due to a 45 minute rule that wasn't mentioned anywhere in my flight itinerary or multiple emails from kayak and frontier. No one at the airport could help me without a frontier representative, they didn't answer my call to their 800 number and I missed my best friend's fathers funeral."

Cons: "Fees, cramped space, cleanliness"

Pros: "Hanging out in a cold airport all day for no reason"
Cons: "See above"

Cons: "The fact I had to pay an extra 45 dollars for my luggage so all in all this trip was not convenient nor cheap."

Cons: "I purchased through early online check in round trip carryon for $70. But there is no record and had to pay$45. At PDX."

Pros: "Nice plane."
Cons: "Bag fees, long and painfully slow check in line. No wifi on plane."

Cons: "Charges for carry on luggage a little too much."

Cons: "No leg room."

Cons: "This was an absolutely terrible experience. I will not be flying frontier again."

Pros: "Shitty cut rate airline. Never again. Kayak or Frontier."

Pros: "Very efficient overall"
Cons: "Rigid fixed seats"

Pros: "All good."
Cons: "Nothing was below an excellent"

Cons: "Water should be offered w/o cost."

Pros: "40 minutes early was awesome! Crew was nice"

Cons: "There are hidden costs (checked and carry on bags plus reserving a seat) which make frontier not as affordable as they appear. The seats are very uncomfortable and now they have no real tray tables anymore (except in the first 3 rows--which you can pay extra for). Additionally, the checked luggage has taken up to 30 mins to arrive on multiple occasions. Frontier has become a terrible airlines that cares more about their bottom line rather than sustaining the customers who are responsible for their bottom line."

Pros: "Nothing to like"
Cons: "Delayed 3 hours"

Cons: "They didn't transfer my baggage to my connecting flight even though I had an hour and a half layover. I had a meeting early the next morning and got in too late to go shopping. I ended up having to run around Target at 8 AM to buy an outfit for the day."

Cons: "All flights were delayed horribly. No organization."

Cons: "More room and personal space. It was crammed."

Pros: "Got to the intended destination"
Cons: "Had to do CPR on a person in the aisles. But can't choose who is going to collapse or when."

Cons: "No service reps available to problem solve at airport"

Pros: "fast through security and boarding the plane"

Cons: "The number of add-on costs were unexpected and costly. The comfort level was poor (don't like the design of the airbus; couldn't even reach the light and air controls). Even coffee costs extra money. Overall, the experience was poor and I will not fly Frontier again."

Pros: "Pretty much nothing."

Cons: "I was charged extra for my carry on."

Cons: "I had a exit seat...but paying for a seat is totally bogus!!"

Cons: "Did not get even water. No phone or tablet use with airline mode when they said available and my things were correct."

Cons: "6 hours delay for technical reasons, $45 for carry on."

Cons: "They dont even serve free drinks, took about 35 minutes to bring me water, and were rude."

Pros: "staff was good."
Cons: "all the extra expenses. ends up being as $ as delta"

Cons: "Long delay. No explanation."

Pros: "Flight was on time"
Cons: "Charges on my logage"

Cons: "Toilets were not functioning"

Pros: "They are daylight highway robbers. No one should travel in Fronrier and Spirit Air. These two should learn from European cut rate airlines."
Cons: "Nothing much"

Pros: "Flight was on time. Easy online check in."

Cons: "I will not fly Frontier ever again. Such a horrible experience. The cheap fares are not worth it. Not much leg room, bags are expensive to check and extra charges for carry ons, and charges for water. The staff did their best but I wonder if even staff hates that all the niceties of flying are stripped from Frontier. I'd rather walk from Portland to Minneapolis than fly on Frontier again."

Pros: "Safely from point A to B. Didn't have a POS terminal at the lavatory, which will likely be next."
Cons: "Loss leader fare, $35 per checked bag, $40 per carry on, but mostly having paid apparently only for the privilege of standing in the aisle, to have to pay extra (anywhere from $13 to $50 per seat assignment) to sit with my loved ones rather than just random seating. Seats so tight, that don't even lean back, felt like one of those chickens in the trucks on the freeway. Doing the math, this fare was actually more expensive than choosing an airline that actually serves human beings. As stated above, at least we didn't die, but at such levels of "economy" I was not confident that we would even survive the trip, thinking that the the pilots must be of the same quality. Please use a more honest business model, until then, we will not use you again."

Cons: "Expensive bag fees and $2 for a soda"

Pros: "Everything went fairly smooth. The safety speech was clever."
Cons: "Paying for beverages."

Cons: "Uncomfortable seating and quarters"

Pros: "Everything"

Pros: "Speedy boarding"
Cons: "Charges for everything, small amount of personal space"

Pros: "Pretty quick!"

Cons: "Fee for everything - even to get a seat, after buying a ticket. On principles, I'll be avoiding Froniter int he future."

Read more about Alaska Airlines
COVID-19 information

Safety measures for airlines flying from Oregon to Colorado

Airlines flying from Oregon to Colorado have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Oregon to Colorado

Mandatory masks

Masks required on board, masks provided on flights from Oregon to Colorado

Social distancing seating

Middle seats unavailable to book on flights from Oregon to Colorado

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Oregon to Colorado

Book cheap flights from Oregon to Colorado

Recent round-trip flight deals

8/10
Tue
1 stop
Spirit Airlines
13h 46m
PDX - DEN
8/18
Wed
1 stop
Spirit Airlines
8h 34m
DEN - PDX
8/27
Fri
nonstop
Multiple Airlines
2h 43m
PDX - DEN
8/31
Tue
1 stop
Multiple Airlines
6h 53m
DEN - PDX
11/12
Fri
nonstop
Alaska Airlines
2h 30m
PDX - DEN
11/15
Mon
nonstop
Alaska Airlines
2h 53m
DEN - PDX
9/22
Wed
nonstop
Multiple Airlines
2h 32m
PDX - DEN
9/29
Wed
1 stop
Multiple Airlines
6h 48m
DEN - PDX
8/23
Mon
nonstop
Multiple Airlines
2h 43m
PDX - DEN
8/31
Tue
1 stop
Multiple Airlines
6h 53m
DEN - PDX
8/19
Thu
1 stop
Multiple Airlines
6h 36m
PDX - DEN
8/24
Tue
nonstop
Multiple Airlines
2h 45m
DEN - PDX
8/10
Tue
1 stop
Spirit Airlines
13h 46m
PDX - DEN
8/19
Thu
1 stop
Spirit Airlines
20h 44m
DEN - PDX
9/21
Tue
nonstop
Multiple Airlines
2h 43m
PDX - DEN
9/28
Tue
1 stop
Multiple Airlines
5h 45m
DEN - PDX
9/25
Sat
nonstop
Multiple Airlines
2h 30m
PDX - DEN
9/28
Tue
1 stop
Multiple Airlines
5h 45m
DEN - PDX
8/19
Thu
1 stop
Multiple Airlines
6h 36m
PDX - DEN
8/27
Fri
nonstop
Multiple Airlines
2h 45m
DEN - PDX
8/10
Tue
1 stop
Spirit Airlines
13h 46m
PDX - DEN
8/17
Tue
1 stop
Spirit Airlines
6h 40m
DEN - PDX
8/27
Fri
nonstop
Frontier
2h 41m
PDX - DEN
8/31
Tue
nonstop
Frontier
2h 45m
DEN - PDX
9/19
Sun
nonstop
Frontier
2h 43m
PDX - DEN
9/20
Mon
nonstop
Frontier
2h 45m
DEN - PDX
9/18
Sat
nonstop
Frontier
2h 43m
PDX - DEN
9/21
Tue
nonstop
Frontier
2h 45m
DEN - PDX
8/21
Sat
nonstop
Frontier
2h 43m
PDX - DEN
8/24
Tue
nonstop
Frontier
2h 45m
DEN - PDX
9/3
Fri
nonstop
Frontier
2h 43m
PDX - DEN
9/7
Tue
1 stop
Frontier
12h 28m
DEN - PDX
8/19
Thu
1 stop
Spirit Airlines
6h 36m
PDX - DEN
8/28
Sat
2 stops
Spirit Airlines
14h 35m
DEN - PDX
9/4
Sat
1 stop
United Airlines
4h 29m
PDX - COS
9/8
Wed
1 stop
United Airlines
5h 16m
COS - PDX
9/28
Tue
1 stop
American Airlines
6h 53m
PDX - COS
9/29
Wed
2 stops
American Airlines
12h 19m
COS - PDX
9/8
Wed
1 stop
Delta
4h 44m
EUG - DEN
9/15
Wed
1 stop
Delta
4h 06m
DEN - EUG
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Recent one-way flight deals

8/17
Tue
1 stop
Spirit Airlines
13h 46m
PDX - DEN
8/19
Thu
1 stop
Spirit Airlines
6h 36m
PDX - DEN
8/17
Tue
1 stop
Spirit Airlines
13h 46m
PDX - DEN
8/19
Thu
1 stop
Spirit Airlines
21h 36m
PDX - DEN
9/3
Fri
nonstop
Frontier
2h 41m
PDX - DEN
9/14
Tue
nonstop
Frontier
2h 43m
PDX - DEN
9/9
Thu
1 stop
Spirit Airlines
15h 55m
PDX - DEN
9/4
Sat
nonstop
Frontier
2h 43m
PDX - DEN
9/1
Wed
nonstop
Frontier
2h 41m
PDX - DEN
8/16
Mon
1 stop
Spirit Airlines
13h 46m
PDX - DEN
10/2
Sat
nonstop
Alaska Airlines
2h 30m
PDX - DEN
8/21
Sat
nonstop
Frontier
2h 43m
PDX - DEN
9/17
Fri
1 stop
Frontier
16h 09m
PDX - DEN
9/15
Wed
1 stop
Alaska Airlines
7h 41m
PDX - DEN
10/2
Sat
1 stop
American Airlines
5h 21m
PDX - DEN
8/14
Sat
1 stop
Multiple Airlines
5h 59m
MFR - DEN
8/9
Mon
1 stop
Multiple Airlines
23h 01m
PDX - COS
10/2
Sat
1 stop
United Airlines
4h 30m
PDX - COS
9/5
Sun
1 stop
Delta
4h 52m
PDX - DEN
8/28
Sat
2 stops
Major Airline
11h 55m
MFR - DEN
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