$75 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 5/25. 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$136
Aspen
Aspen1 stop$675
Grand Junction
Grand Junction2 stops$588
Vail
Vail2 stops$787
Durango
Durango2 stops$588
Denver
Denvernonstop$136
Aspen
Aspen1 stop$675
Grand Junction
Grand Junction2 stops$588
Vail
Vail2 stops$787
Durango
Durango2 stops$588

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, May 29
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
$136Allegiant Air
Mon, May 25 - Fri, May 29
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
$177Allegiant Air
Fri, Sep 11 - Mon, Sep 14
Allegiant Air Logo
7:00 am - 8:46 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
10:06 am - 3:38 pm
DEN
-
ABE
3h 32mnonstop
$185Allegiant Air
Mon, Jun 1 - Mon, Jun 8
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
$186Allegiant Air
Tue, Apr 28 - Sat, May 2
United Airlines Logo
5:43 pm - 9:54 pm
ABE
-
COS
6h 11m
1 stop
United Airlines Logo
6:00 am - 1:38 pm
COS
-
ABE
5h 38m
1 stop
$413United Airlines
Tue, Apr 28 - Sat, May 2
Delta Logo
12:53 pm - 8:20 pm
ABE
-
COS
9h 27m
1 stop
Delta Logo
7:59 am - 11:00 pm
COS
-
ABE
13h 01m
2 stops
$439Delta
Thu, Aug 6 - Tue, Aug 11
Delta Logo
6:20 am - 1:14 pm
ABE
-
COS
8h 54m
1 stop
Delta Logo
1:40 pm - 10:56 pm
COS
-
ABE
7h 16m
1 stop
$444Delta
Tue, Apr 28 - Sat, May 2
American Airlines Logo
12:57 pm - 10:25 pm
ABE
-
COS
11h 28m
2 stops
American Airlines Logo
1:39 pm - 12:22 am
COS
-
ABE
8h 43m
2 stops
$466American Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
6:15 am - 10:59 am
ABE
-
COS
6h 44m
1 stop
United Airlines Logo
12:45 pm - 1:42 pm
COS
-
ABE
22h 57m
1 stop
$587United Airlines
Fri, Sep 11 - Fri, Sep 18
American Airlines Logo
6:33 am - 5:46 pm
ABE
-
GJT
13h 13m
2 stops
American Airlines Logo
8:56 am - 10:14 pm
GJT
-
ABE
11h 18m
2 stops
$635American 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.

How much is a round-trip flight from Allentown to Colorado?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Allentown to Colorado departing in May.

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 $168 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 $168.

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

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

The cheapest time of day to fly to Colorado is generally in the morning, when round-trip flights cost $209 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 $291.

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 $296, 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 $207 (return) on average. On the other hand, the most expensive months are March and April, when the average cost of round-trip tickets is $539 and $388 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 Thursdays 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 4 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$75
Best time to beat the crowds but there is an average 76% increase in price.
Most popular time to fly and prices are also 14% 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.

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 $145 one-way - $244 round-trip

Reviews of the top 4 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 8386 reviews
8.1Boarding
7.2Food
8.5Crew
7.9Comfort
7.8Entertainment
Airline reviews

We departed and landed early which was a nice surprise. The boarding process was slow.

10.0 ExcellentBrittany, Apr 2026
DAL - ATL
Read more Delta reviews

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

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

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

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.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

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.

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

Information on your arrival and departure airports