$55 Find Cheap Flights from Allentown to Colorado - Compare and Save

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 10/5. 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.
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Cheap Flights from Allentown to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$98
Aspen
Aspen2 stops$534
Vail
Vail2 stops$603
Grand Junction
Grand Junction2 stops$564
Durango
Durango2 stops$645
Denver
Denvernonstop$98
Aspen
Aspen2 stops$534
Vail
Vail2 stops$603
Grand Junction
Grand Junction2 stops$564
Durango
Durango2 stops$645

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, Sep 28 - Fri, Oct 2
Allegiant Air Logo
7:30 am - 9:16 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
10:14 am - 3:42 pm
DEN
-
ABE
3h 28mnonstop
$98Allegiant Air
Mon, Sep 14 - Fri, Oct 2
Allegiant Air Logo
7:30 am - 9:16 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
10:14 am - 3:42 pm
DEN
-
ABE
3h 28mnonstop
$108Allegiant Air
Mon, Sep 28 - Fri, Oct 2
Allegiant Air Logo
7:30 am - 9:16 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
10:14 am - 3:42 pm
DEN
-
ABE
3h 28mnonstop
$117Allegiant Air
Mon, Sep 28 - Fri, Oct 2
Allegiant Air Logo
7:30 am - 9:16 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
10:14 am - 3:42 pm
DEN
-
ABE
3h 28mnonstop
$123Allegiant Air
Sat, Oct 31 - Sat, Nov 7
American Airlines Logo
6:00 am - 12:56 pm
ABE
-
COS
8h 56m
1 stop
American Airlines Logo
12:46 pm - 10:12 pm
COS
-
ABE
7h 26m
1 stop
$333American Airlines
Wed, Sep 16 - Sat, Sep 19
United Airlines Logo
5:36 pm - 11:55 pm
ABE
-
COS
8h 19m
2 stops
United Airlines Logo
11:55 am - 9:00 pm
COS
-
ABE
7h 05m
1 stop
$338United Airlines
Wed, Aug 26 - Sat, Aug 29
American Airlines Logo
9:36 am - 6:40 pm
ABE
-
COS
11h 04m
2 stops
American Airlines Logo
10:12 am - 11:25 pm
COS
-
ABE
11h 13m
2 stops
$343American Airlines
Wed, Aug 26 - Sat, Aug 29
American Airlines Logo
9:36 am - 6:40 pm
ABE
-
COS
11h 04m
2 stops
American Airlines Logo
12:36 pm - 10:20 pm
COS
-
ABE
7h 44m
1 stop
$371American Airlines
Wed, Sep 16 - Sat, Sep 19
United Airlines Logo
5:36 pm - 9:54 pm
ABE
-
COS
6h 18m
1 stop
United Airlines Logo
11:55 am - 9:00 pm
COS
-
ABE
7h 05m
1 stop
$402United Airlines
Thu, Aug 27 - Sun, Aug 30
United Airlines Logo
6:15 am - 10:33 am
ABE
-
COS
6h 18m
1 stop
United Airlines Logo
5:30 am - 4:56 pm
COS
-
ABE
9h 26m
2 stops
$421United 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 September.

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 5 days was to Denver, at $152 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 5 days was $152.

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 afternoon, when round-trip flights cost $246 on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $251.

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 $350, 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 $113 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is $273 and $248 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 Sunday 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 Mondays.

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 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low season

March

Cheapest flight

$55
Best time to beat the crowds but there is an average 84% increase in price.
Most popular time to fly and prices are also 1% 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.

  • How many flights are there between Allentown and Colorado per day?

    There is a maximum of 1 nonstop flight a day that takes off from Allentown and lands in Colorado, with an average flight time of 4h 01m. The most common departure time is 7:00 am and most flights take off in the morning. Each week, there are 2 flights.

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 $109 one-way - $218 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.
7.8
DeltaOverall score based on 8479 reviews
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
7.8Comfort
Airline reviews

No Internet, no backseat screen, no nothing. I bought a Delta ticket and ended up on American Airlines. How did that happen?

6.0 GoodAlexander, Jul 2026
MDT - ATL
Read more Delta reviews

No Internet, no backseat screen, no nothing. I bought a Delta ticket and ended up on American Airlines. How did that happen?

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Delta flight was on time, seats were comfortable, and crew was nice.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

The flight attendants were friendly and seemed to like their jobs. I am not a high maintenance person, but they seemed to respond to people's needs and requests in a timely fashion with a smile.. I appreciate the benefits of complimentary snacks and beverages, as well as the relatively inexpensive checked baggage fee. (Although I would like it better if it were free! :) ) The only improvement that could be made to make the boarding process more efficient is to board the plane from the back. The alternative would be to board people with only a personal item first. This would reduce the wait time while others are stowing their baggage.

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

It was a short flight so I was expecting too much

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

Seats suck. Only one drink service in three hours with the flight attendants being more attendant to their phones than the customer. Painful in the extreme.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

A very pleasant flight but it would be greatly improved with wifi to help entertain kids

This is a no frills, get it done, efficient airline. The seat is a lawn chair. You better bring your own entertainment. If you want something other than water you need to pay for it. But they will get you to your destination quickly, on time, and then they will turn the flight around and go right back where they came from. Reliably. Couple times a week tops. If it fits into your schedule, you can’t get there cheaper or faster.

A three hour delay to board and then another hour on the tarmac because they couldn't get a tractor? Ugh.

Allegiant canceled the flight. The flight the next day was full. Allegiant did not provide any compensation besides a refund. Last time on Allegiant.

Seats were very uncomfortable and being charged for snacks and water.........

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

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

My TSA number was missing from my ticket which shouldn’t have happened since it’s in my file. The on board flight attendant who was a male, did not want to help me put my luggage in the overhead bin and made a very rude comment and was very unpleasant. The good… the woman who fixed my ticket with the TSA number was excellent and I had extra legroom which was perfect.

Plane had mechanic problem that was never explained. Had to bring a plane from another airport. Six hour delay. No apology for the delay. Not even an acknowledgment.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

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

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.

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.

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

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

Our bags took a long time to get unloaded once we landed.

The airline schedule services was simply mediocre. The ground crew is fine; they are doing their best. The after-delay services were simply poor, and after-cancelling services were almost non-existence. Receiving refund is one rescuing point, but please keep in mind that, people wants to get home or get to their destinations. Cancelling without aftermath recourse is simply poor services. AA needs to fire the marketing department, and the customer-service related leaders.

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

Information on your arrival and departure airports