|January||Best time to beat the crowds with an average 8% drop in price.|
|March||Most popular time to fly with an average 20% increase in price.|
Average price of a round-trip
|$280||(avg. price over the last 2 weeks)|
Good deal for a round-trip
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 Colorado to Islip.
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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 to Islip from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
Scores according to KAYAK customer reviews
Pros: "Captain asked passengers not making close connections to allow passengers with connections to deplane first was very helpful."
Cons: "Flight left late and arrived late making my connection in Philadelphia for a flight to Budapest a very close call."
Cons: "Two hour delay out of Denver, no crew."
Cons: "Such tiny seats."
Pros: "Crew was nice."
Cons: "Plane was very old (from the 90s?), cabin kept freezing all night. Now my husband's luggage has been lost and we are getting conflicting information on how to retrieve it."
Pros: "Comfortable flight except for limited leg room. Great movie selection."
Cons: "Poor leg room for tall people"
Pros: "Not using kayak"
Cons: "Kayak booked me the worst itinerary in the history of air travel!"
Pros: "Food was good. Staff was polite."
Cons: "Both flights were late leaving. Plus then we waited on board for a long time. Once on board and waiting, no explanation, no updates. No idea what was going on or why. An announcement would have helped a lot. Philky-Prg: Long delays with food , staff was slow on the Philly -Prg flight. Seemed like they didn't want to be there. No info from flight crew. Phily to Prg - Crappy old plane that should not be flying over seas anymore. Applies to both flights unless specified."
Pros: "The helpful steward"
Cons: "The bumpy ride"
Pros: "fairly comfortable, crew was helpful"
Cons: "Having to use my phone for entertainment, with no place to plug it in"
Cons: "I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!"
Cons: "We had five pieces of luggage lost during our flight from the U.S. to Spain. When we arrived in Madrid we were told that all five pieces had been located. When we went to pick them up the next day there were only four pieces at the airport. We were told the fifth suitcase would be delivered when it was located. It's ten days later and there's no sign of the luggage. It has taken multiple phone calls to get the information about the luggage correct. They assure me that they have everything correctly documented and then when I call back they haven't changed a thing. It has been a very frustrating process overall."
Pros: "Comfortable seats, good legroom."
Cons: "Not enough coffee for breakfast."
Pros: "Arrived 20 min early. Smooth flight."
Cons: "Didn’t have individual movie screens."
Pros: "Seats were comfortable enough"
Cons: "They force you to get to the airport really early."
Pros: "Food and entertainment were great"
Cons: "This was a BA flight on an American Airlines plane. Very small crowded and uncomfortable. My husband is 6'2" and barely fit in the seat."
Pros: "The crew was awesome."
Cons: "You guys lost our luggage!"
Pros: "Good connection"
Pros: "I like that American offers free movies thru their app but there was a glitch and I couldn't get it to work!"
Cons: "Couldn't get the entertainment app to work"
Pros: "There was nothing too bad other than I wasn't able to check in online bc our first leg of the flight was operated by American Airlines. But there wasn't anything that really stood out that would make me want to fly them again other than it was the best price."
Pros: "The crew was very helpful at each stop even though they weren't responsible for the disasters."
Cons: "Initially we thought we were flying with British Airways. We then had to do some digging to realize it was all out of American Airlines. Then we couldn't get proper boarding passes and luggage tags until one of the crew members spent a significant amount of time untangling each leg of our trip so they were in the proper order. We got delayed by 4 hours in Chicago and missed our connection in Manchester. We had another 5 hour wait there. By the time we got to Dublin, our bags didn't also arrive. After almost 24 hours of travel, we arrived but without all of our stuff."
Pros: "Easy flight, friendly crew."
Cons: "Girl next to me being sick the whole time"
Pros: "Flights attendants were super friendly and the plane was very clean"
Cons: "seats are uncomfortable"
Pros: "Excellent, friendly attention from flight attendants."
Pros: "Quick, easy boarding. Flight arrived, and left on time. Tickets were very affordable."
Cons: "How can I rate a 10 dollar sandwhich with a tiny bag of chips any higher? Entertainment? Non existent.. Wifi didnt work. I made several calls ahead of time to check if i can carry alcohol in 50 mL labelled bottles, sealed. I was told yes. Asked if i could drink them on the plane. Yes. Then I was told AFTER on plane consumption of my own alcohol that this was a federal offense. Epic mess up you guys.."
Pros: "Overall great flight and great service. No complaints!"
Cons: "Late departure. Seats were double booked. Had to delay again to sort it out."
Pros: "I liked everything from the way they got everyone on the plane to getting everyone deplaned."
Cons: "I didn't have a problem with the airline. Just a couple of passengers."
Cons: "I had to leaves Denver early due to my granddaughter needing help. To sees switch returns my ticket it would cost me me $200.00 but it could get a retire ticket for that day for $40.00. Why couldn't that dollar amount come of my ticket . That was just crazy"
Pros: "My departing flight crew was very accommodating for my baby and I. They were very pleasant."
Cons: "I wasn't able to board first with my baby, so I had to try and walk through all the passengers with a baby, diaper bag and small carry on. It was a little difficult."
Cons: "I had a severe back injury in Denver and they were unable to move my flight up a day to get home and see a doctor. A good friend had to buy me a new flight with his airline miles so that I could get home to relive my pain. I'll never fly American again because of this complete lack of compassion and care for their customer."
Pros: "The flight attendants on this flight were very nice and helpful."
Cons: "Extremely unorganized. Sat on the plane for about 2 hours before we could even take off. There method for lightening the plane was extremely poor. The entire plane ending up missing connecting flights. No food left to purchase...no drinks served to the back of the plane til about 3 1/2-4 hours into the flight."
Pros: "On time. Good crew and nicer flight."
Cons: "Actually no complaints."
Pros: "Entertainment modules in cabin were nice"
Cons: "Forced to check my bag in at the gate. Upon completion of boarding, there were several empty spaces in the overhead bins, and my bag could have fit easily. Upon arriving in Houston, baggage claim was VERY slow. Small flight of less than 30 people. Southwest had 3 flights arrive and complete baggage claims by the time our bags became available. Airport personnel confirmed that it is typical or normal for American because they operate with a small "skeleton" ground crew. Flight arrived just after 11:20pm,, but wasn't able to head out for transportation until after 12:30am. VERY upset and disappointed with service."
Pros: "Boarding was pleasant, flight attendant was very nice. Served several snacks and choice of drinks."
Cons: "no entertainment"
Cons: "Small narrow seats"
Pros: "For the first time, ticket counter from the Denver American air assistant patiently review the my connecting flight when flights were delayed twice!"
Cons: "AA keep announcing they will be delayed hour at the time and with east coast time changes, I almost couldn’t make it to fly second connection flight. They should give us guide line to exchange the connecting flights."
Pros: "Friendly service"
Pros: "The flight was fine"
Cons: "Both flights each way where delayed significantly"
Cons: "Flight was canceled going back to denver from Augusta. American did nothing to compensate me for their mechanics breaking. Had no place to sleep and no transportation as I return my rental. Poor customer service will never use American again!"
Pros: "Seat was comfortable, and my favorite on this aircraft - 3F on the MD80. Boarding was quick, and service was efficient once airborne."
Cons: "AA crews are skimping on pre-departure service, rarely offering PDBs (pre-departure beverages), or, when they do, half-assing it by putting water and OJ on a tray and making it clear nothing else is available as they did on this flight. It sets the expectations very low for the rest of the flight, and that's what happened."
Cons: "American delayed the flight 7 times before cancelling it. They then put me on a flight 7 hours after the initial departure time. That flight was delayed 7 times and then they cancelled it. I wasted 10 hours at the airport."
Pros: "how easy it was to purchase ticket on kayak."
Cons: "Being charged for my checked bag unexpectedly at check in."
Pros: "Space security manners"
Pros: "Seats were comfortab"
Cons: "The flight attendants, could have been a bit friendlier"
Pros: "Cool TV roomy seats , friendly staff."
Cons: "The new seats were so uncomfortable, I couldn't sit shoulder to shoulder with the people next to me"
Pros: "Arrived home safely"
Cons: "Arrived very early due to logistics and our flight was not leaving for 9 hrs and the AA Representative would only put us on a earlier flight if we paid a large fee, so we waited then the original flight was delayed 2 hours and we nearly missed our connection in another city, it all could have been avoided if a little flexability and care were involved to put us on a earlier flight"
Pros: "On time, stewardess fine. Pilot fine."
Cons: "All drinks and snacks had to be purchased. It seems when a ticket is over $300 each, (or at least mine was) that a complimentary soda or pretzels would be a little thing and appreciated.)"
Cons: "Plane was dirty, flight delayed, lost my bag, awful."
Cons: "the same as above"
Cons: "The seats are incredibly uncomfortable. They do not have a complimentary beverage service. The landing was rough and on top of all that they charge for every little thing. I had to pay $60 for a CARRY ON. I will NEVER fly with this airline again, and i recommend you spend the extra cash for an airline that actually cares about their costumers."
Cons: "Given a seat in row 4 which didn't recline- aghh!"
Pros: "That I'll never have to fly with Frontier again."
Cons: "Customer service Lost bag Comfort Fees"
Pros: "Not Much. Miss the old Frontier"
Cons: "Hidden Fees - Charges for luggage, Carry On, Drinks, Snacks, assigned seats, charging for seats that recline. $88.00 round trip fair turned into $200 Surprised they didn't charge to use the restrooms Uncomfortable - worst seats ever Will never fly Frontier again if I don't have too. Sad to see a good airline that has been bought out and ruined."
Pros: "It got me there without crashing."
Cons: "I think that charging for carryon AND checked baggage is just a money-maker for the airline. Certainly not to the customer's benefit. The non-reclining seats are a negative as is the tiny little "tray" and small seats."
Pros: "Flight left and arrived on time."
Cons: "Seats didn't recline and website is misleading when it comes to purchasing seats. I was very uncomfortable."
Cons: "Bag fair, airline in general"
Pros: "the flight was on time both ways."
Cons: "excessive bag fees. non reclining chairs. having to pay for soft drinks and snacks. LONG loudspeaker announcement trying to sell us their credit card deal. No TV or media available."
Pros: "Arrived early - fun crew."
Cons: "Seats don't recline - slow de- boarding process."
Cons: "Seats are extremely uncomfortable. I was hurting even if my flight was only 3 hours. I was dreading the return flight. Seats don't lean back either."
Pros: "The crew was pretty friendly - friendlier than the other Frontier crews we had."
Cons: "Delay after delay after delay. Took us TWENTY extra hours to get home. Missed work and caused huge inconvenience to family and friends. Terrible airline, terrible experience."
Cons: "Despite the missed connection the woman at the ticket counter insisted that I would be charged for a carry on bag. I flew American instead and will be seeking a refund."
Pros: "charge for carry on, no let room"
Cons: "Ripoff across the board"
Pros: "I was impressed with the patient attitudes of the crew and the quick thinking to find a solution when we were stuck on the ground for two hours during the blizzard because of power outages that made us unable to finish fueling the plane. The quick turnaround of finding another solution to fuel (flying to an operational airport with the fuel we had), and getting the alternate flight plan to Kansas written and approved was very impressive, and saved my trip."
Pros: "Despite DIA being closed the day before, we were only 35min late for departure, flight was without event and a timely arrival at DC. It may have been cheap, but you got what you paid for..."
Cons: "Bloody small seating, no refreshments."
Pros: "Cheap fare."
Cons: "The remodeled interior puts the seats closer together from front to back and don't recline. That also limits the size of the tray table, which is tiny. Even as a tiny, short person, it was uncomfortable. For anyone of normal stature it would be torture. Paying for a "better" seat appears to provide very little if any added benefit, just keeps your party together. There is no entertainment, movies, music, or wifi so bring your battery pack charger. There is only expensive junk food to eat. My only option on my coast to coast flight was a red eye. So you arrived just wiped out. So if you do this to save money, in my overall assessment, it's just not worth it. I'll never do it again."
Cons: "Might as well take flying school bus and pay tons of money to do so. Cheap experience that's not cheap at all after they charge you for every possible thing. My new least favorite airline. I will never fly them again."
Cons: "See above"
Cons: "Another frontier flight delay due to illogical, unidentified "paper work.""
Cons: "This airline comes up with every idea possible to charge the costomer. I give the airline a star for being sneaky and sly and having rules and policies to rip off passengers. Because it is brilliant that they con you without breaking any laws."
Cons: "The tray tables are so small it was impossible to use them. We never were even offered water and the cost for a simple soft drink or juice is overpriced. Things we expect and get from the airlines are not available on Frontier. Shame on you!!!"
Cons: "the crew was incredibly rude (to others and myself) the flight was delayed three hours and we weren't notified until we were supposed to board"
Pros: "It was fine--took off, polite crew, and landed safely. Can't complain about that."
Cons: "Our plane was delayed for over an hour. Picking up a bag from Frontier takes forever because you have to check what would otherwise be a carry-on. I wasn't aware of this as it was my first time flying with Frontier. Knowing that, I'd be able to schedule better. Don't love that they don't really give any refreshments or snacks."
Pros: "Crew and how fast the flight was."
Cons: "Baggage fees, seat comfort, temperature of plane,"
Cons: "Uncomfortable chairs,"
Cons: "The website was confusing at check in and I thought I had to select a seat. I was charged for a seat twice due to a lay over. $70 for a seat that would go back slightly and had a decent amount of leg room. $35 to check a bag, carry on cost more. My inexpensive ticket turned out to cost me an extra $140 dollars"
Pros: "Was a very fast flight"
Cons: "I was able to bring my skateboard and carry on for free when i left and when i came back i was charged for both. And the attendee was rude about it."
Cons: "I didn't realize when I booked the fare that I would have to pay an addition amount for a seat on your plane. No wonder the fare looked like such a good deal! I hadn't flown Frontier before, so this was all new to me! You nickel and dime everyone for every little thing, such as baggage, a seat, any kind of refreshment on your flight. The flight I took was short and went fine, but I would not fly with your Arline to far off destinations! Thanks for the safe flight, but it was a one time purchase."
Pros: "First time flying with Frontier. No complaints other than having to pay for my carry on luggage. But when I only spent $80 (taxes and fees included) to fly from Dallas to Denver, I'm still happy."
Pros: "Great fare.awesome staff.had to wait to load bags.but will fly again"
Cons: "You have to pay for everything. Tried to charge me for a computer bag coming into plain although we are allowed one person item I should be comped flights. Due to this horrible experience."
Cons: "landing and waiting for a gate for 45 minutes. We were an on-time arrival without a gate? That is very poor planning and anticipation of flight needs."
Pros: "Crew did a great job keeping everyone happy with the weather delays."
Cons: "Service is tribble and I don't have a any plan to fly to frontier"
Pros: "Very efficicient operation"
Cons: "Bags were a little slow coming to baggage claim"
Pros: "It was a very rough ride, but the pilot did warn us when we left Denver. the plane was brand new - yet had to wait two hours before it came out of the garage for - not sure what!"
Cons: "We had to wait a very long time for our luggage - a carousel was broken they finally said."
Cons: "Hour late, seats very uncomfortable, small"
Cons: "I fly a lot but this was my first time on frontier and it was just poor quality. You guess charge for everything and provide nothing good for the customers. The seats and pull down table are horrible and it was just bad."
Pros: "friendly crew"
Cons: "same as above"
Pros: "boarding was fast and efficient"
Cons: "They even charge for soft drinks. Seats do not recline"
Pros: "quick flight"
Cons: "They don't offer any snacks. Nothing to drink. Must buy everything. Can't bring stuff from outside, and get it through TSA."
Pros: "I really enjoyed the new seats on the plane."
Cons: "There was a loud screaming baby most of my flight :("
Pros: "It was ok. Basic Airlines without alot of extras. Seats were ok. Staff was ok. I wasn't expecting much but a safe trip so I got what I paid for. Overall just a basic good experience."
Cons: "Charging for bags. But most arilines are doing this, so it was expected. I still put it in the dislike category though,"
Pros: "I liked that the flight was only $38."
Cons: "Didn't like having to pay extra for a bag (not a huge deal though since the flight was so cheap). Return flight was delayed 2 hours. Tray tables are way too small."
Pros: "the staff was excellent and the flights smooth."
Cons: "not enough seating space"