$49 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 8/17. 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$129
Colorado Springs
Colorado Springs2 stops$392
Aspen
Aspen1 stop$489
Grand Junction
Grand Junction2 stops$640
Durango
Durango2 stops$719
Vail
Vail2 stops$711
Denver
Denvernonstop$129
Colorado Springs
Colorado Springs2 stops$392
Aspen
Aspen1 stop$489
Grand Junction
Grand Junction2 stops$640
Durango
Durango2 stops$719
Vail
Vail2 stops$711

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
$129Allegiant Air
Mon, Sep 7 - Fri, Sep 11
Allegiant Air Logo
8:00 am - 9:46 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
9:36 am - 3:08 pm
DEN
-
ABE
3h 32mnonstop
$134Allegiant Air
Mon, Aug 31 - Fri, Sep 4
Allegiant Air Logo
7:30 am - 9:22 am
ABE
-
DEN
3h 52mnonstop
Allegiant Air Logo
10:06 am - 3:38 pm
DEN
-
ABE
3h 32mnonstop
$135Allegiant Air
Mon, Sep 14 - Fri, Sep 18
Allegiant Air Logo
7:30 am - 9:16 am
ABE
-
DEN
3h 46mnonstop
Allegiant Air Logo
9:36 am - 3:08 pm
DEN
-
ABE
3h 32mnonstop
$136Allegiant Air
Fri, Aug 21 - Tue, Sep 1
American Airlines Logo
6:00 am - 6:40 pm
ABE
-
COS
14h 40m
2 stops
American Airlines Logo
12:37 pm - 10:40 pm
COS
-
ABE
8h 03m
1 stop
$392American Airlines
Fri, Aug 21 - Tue, Sep 1
American Airlines Logo
6:00 am - 6:40 pm
ABE
-
COS
14h 40m
2 stops
American Airlines Logo
8:00 am - 10:40 pm
COS
-
ABE
12h 40m
2 stops
$397American Airlines
Fri, Aug 21 - Tue, Sep 1
United Airlines Logo
6:15 am - 10:33 am
ABE
-
COS
6h 18m
1 stop
United Airlines Logo
11:55 am - 9:00 pm
COS
-
ABE
7h 05m
1 stop
$411United Airlines
Tue, Jul 14 - Sat, Jul 18
Delta Logo
6:30 am - 12:32 pm
ABE
-
COS
8h 02m
1 stop
Delta Logo
6:50 am - 5:25 pm
COS
-
ABE
8h 35m
1 stop
$465Delta
Wed, Sep 2 - Sat, Sep 5
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
$485United Airlines
Wed, Oct 21 - Mon, Oct 26
Delta Logo
1:00 pm - 10:30 pm
ABE
-
COS
11h 30m
2 stops
Delta Logo
1:40 pm - 10:46 pm
COS
-
ABE
7h 06m
1 stop
$490Delta
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 $149 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 $149.

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 $240 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 $246.

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 $260, 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 August, when tickets cost $106 (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 5 weeks before departure, which saves you about 29% 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$49
Best time to beat the crowds but there is an average 74% increase in price.
Most popular time to fly and prices are also 4% 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 $93 one-way - $188 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 8402 reviews
7.8Entertainment
8.5Crew
7.8Comfort
8.1Boarding
7.2Food
Airline reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

2.0 MediocreTravis, Jun 2026
SFO - LAX
Read more Delta reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

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.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

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

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

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.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Seat comfort was poor (no lumbar or lower back support).

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

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.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The captain announced to the cabin there would be a delay because they observed a "cut" on a tire during precheck that needed to be cleared by maintenance. We were delayed during this inspection and allowed to proceed after maintenance "measured the cut and decided it was acceptable". My complaint is not about the delay or due diligence. I wish the captain had been more generic when making his announcement. I was a nervous wreck all the way to Charlotte worried that we would have a blowout when landing!

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

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

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

Information on your arrival and departure airports