$129 Find Cheap Flights from Allentown 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 Allentown to Colorado departing on 5/6. 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 Allentown to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to Colorado, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Allentown to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$143
Aspen
Aspen1 stop$631
Grand Junction
Grand Junction2 stops$513
Durango
Durango2 stops$483
Vail
Vail1 stop$653
Denver
Denvernonstop$143
Aspen
Aspen1 stop$631
Grand Junction
Grand Junction2 stops$513
Durango
Durango2 stops$483
Vail
Vail1 stop$653

Book Cheap Allentown 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 Allentown 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 Allentown to Colorado

Mon, May 25 - Fri, Jun 5
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$143Allegiant Air
Mon, May 25 - Mon, Jun 1
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
5:42 pm - 11:04 pm
DEN
-
ABE
3h 22mnonstop
$176Allegiant Air
Mon, Apr 13 - Tue, Apr 21
Multiple Airlines Logo
6:28 pm - 5:23 pm
ABE
-
DEN
24h 55m
1 stop
Multiple Airlines Logo
11:59 pm - 8:32 am
DEN
-
ABE
30h 33m
2 stops
$262Multiple Airlines
Mon, May 25 - Fri, Jun 5
Multiple Airlines Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Multiple Airlines Logo
7:15 am - 12:39 pm
DEN
-
ABE
27h 24m
2 stops
$271Multiple Airlines
Sat, Apr 11 - Tue, Apr 14
Delta Logo
12:57 pm - 8:28 pm
ABE
-
COS
9h 31m
1 stop
Delta Logo
1:14 pm - 11:00 pm
COS
-
ABE
7h 46m
1 stop
$397Delta
Sat, Apr 11 - Tue, Apr 14
Delta Logo
12:57 pm - 8:28 pm
ABE
-
COS
9h 31m
1 stop
Delta Logo
1:14 pm - 11:00 pm
COS
-
ABE
7h 46m
1 stop
$417Delta
Sun, Apr 5 - Sat, Apr 11
United Airlines Logo
6:15 am - 12:34 pm
ABE
-
DRO
8h 19m
2 stops
United Airlines Logo
6:00 pm - 9:48 am
DRO
-
ABE
13h 48m
2 stops
$483United Airlines
Thu, May 28 - Thu, Jun 4
American Airlines Logo
6:00 am - 11:40 am
ABE
-
COS
7h 40m
1 stop
American Airlines Logo
12:10 pm - 10:47 pm
COS
-
ABE
8h 37m
1 stop
$504American Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
2:30 pm - 10:06 pm
ABE
-
GJT
9h 36m
2 stops
United Airlines Logo
5:30 am - 10:06 am
GJT
-
ABE
26h 36m
2 stops
$513United Airlines
Sat, Jun 20 - Thu, Jun 25
American Airlines Logo
6:00 am - 11:40 am
ABE
-
COS
7h 40m
1 stop
American Airlines Logo
12:10 pm - 10:47 pm
COS
-
ABE
8h 37m
1 stop
$533American Airlines
Booking Insights

KAYAK's insights & trends for Allentown to Colorado flights

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

What is the cheapest Allentown to Colorado flight route?

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

The cheapest ticket to Colorado from Allentown found in the last 72 hours was to Denver, at $145 round-trip. The most popular route is from Allentown (ABE) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $145.

Can I save money by flying with a layover from Allentown 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 $316, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Allentown 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 Allentown to Colorado is September, when tickets cost $208 (return) on average. On the other hand, the most expensive months are April and February, when the average cost of round-trip tickets is $407 and $379 respectively.

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

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

When flying from Allentown to Colorado, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Allentown, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

How far in advance should I book a flight from Allentown 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 Allentown 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 Allentown to Colorado, you should book around 5 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$129
Best time to beat the crowds but there is an average 30% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Allentown to Denver

FAQs - booking Colorado flights

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

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

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

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

    The cheapest time of day to fly to Colorado is generally in the morning, when round-trip flights cost $211 on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $331.

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Allentown to the following destinations at these prices or less: Denver $133 one-way - $204 round-trip

Reviews of the top 5 airlines serving from Allentown to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Allentown 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 Allentown 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.
7.9
DeltaOverall score based on 8258 reviews
7.9Comfort
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
Airline reviews

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

10.0 ExcellentGary, Mar 2026
LGA - DTW
Read more Delta reviews

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

The whole experience was excellent. As it most often is with Delta

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

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 flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

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.

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

Information on your arrival and departure airports