How long does it take to fly to Allentown?

Flight times vary depending on what airport in Colorado you fly out of and what airport in Allentown you fly into. For example, flying from Denver to Newark Airport takes 3h 41m on average. On the other hand, flying from Colorado Springs to Newark Airport takes 5h 51m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Allentown?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Allentown from Colorado according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 7 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Colorado to Allentown-Bethlehem?

Allegiant Air, Delta, and American Airlines are the most popular carriers operating from Colorado to Allentown-Bethlehem

When did momondo last update prices for flights from Colorado to Allentown-Bethlehem Airport?

Prices for flights from Colorado to Allentown-Bethlehem Airport were last updated today.

How many operators does momondo search for flights from Colorado to Allentown-Bethlehem Airport?

As of March 2026, there are 4 operators available to choose from for flights from Colorado to Allentown-Bethlehem Airport.

How old do you have to be to fly from Colorado to Allentown-Bethlehem Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Allentown-Bethlehem Airport.

What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

The travel and health documents required for your trip to Allentown-Bethlehem Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Allentown-Bethlehem Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$132 Cheap Flights from Colorado to Allentown in 2026

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Find the cheapest flights from Colorado to Allentown

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

$171Allegiant Air

Fri, May 29 - Mon, Jun 1

10:22 am - 3:49 pm

DEN

ABE

3h 27mnonstop

7:30 am - 9:32 am

ABE

DEN

4h 02mnonstop

$219Allegiant Air

Fri, Jun 5 - Mon, Jun 8

1:25 pm - 11:00 pm

DEN

ABE

7h 35m

1 stop

5:59 pm - 12:36 am

ABE

DEN

8h 37m

1 stop

$277Delta

Sat, May 2 - Tue, May 5

11:59 pm - 2:56 pm

DEN

ABE

12h 57m

1 stop

1:41 pm - 5:40 pm

ABE

DEN

29h 59m

2 stops

$278Multiple Airlines

Wed, Apr 22 - Mon, Apr 27

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

3:32 pm - 11:58 pm

ABE

DEN

34h 26m

2 stops

$284Multiple Airlines

Fri, May 29 - Mon, Jun 1

1:25 pm - 11:00 pm

DEN

ABE

7h 35m

1 stop

6:15 pm - 12:33 am

ABE

DEN

8h 18m

1 stop

$297Delta

Sat, May 2 - Fri, May 8

3:00 pm - 11:28 pm

DEN

ABE

6h 28m

1 stop

6:00 am - 10:39 am

ABE

DEN

6h 39m

1 stop

$317American Airlines

Tue, Apr 21 - Tue, Apr 28

12:16 pm - 9:17 pm

COS

ABE

7h 01m

1 stop

6:15 am - 11:10 am

ABE

COS

6h 55m

1 stop

$429United Airlines

Sat, May 23 - Sat, May 30

5:30 am - 4:56 pm

GJT

ABE

9h 26m

2 stops

10:38 am - 8:36 pm

ABE

GJT

11h 58m

2 stops

$459United Airlines

Tue, Aug 25 - Sat, Aug 29

12:22 pm - 12:22 am

COS

ABE

10h 00m

2 stops

12:57 pm - 10:25 pm

ABE

COS

11h 28m

2 stops

$519American Airlines

Wed, Apr 8 - Tue, Apr 14

Allegiant Air flights from Colorado to Allentown

Our best Allegiant Air deals on Colorado to Allentown flight tickets

Allegiant Air

May 29

DEN5:42 pmDenver Intl

3h 22m

ABE11:04 pmAllentown-Bethlehem

Jun 1

ABE2:50 pmAllentown-Bethlehem

4h 02m

DEN4:52 pmDenver Intl

$171

Allegiant Air

Jun 5

DEN10:22 amDenver Intl

3h 27m

ABE3:49 pmAllentown-Bethlehem

Jun 8

ABE7:30 amAllentown-Bethlehem

4h 02m

DEN9:32 amDenver Intl

$219

Allegiant Air

Aug 7

DEN5:46 pmDenver Intl

3h 28m

ABE11:14 pmAllentown-Bethlehem

Aug 14

ABE2:54 pmAllentown-Bethlehem

4h 02m

DEN4:56 pmDenver Intl

$266

Delta flights from Colorado to Allentown

Our best Delta deals on Colorado to Allentown flight tickets

Delta

May 2

DEN1:25 pmDenver Intl

7h 35m

1 stop

ABE11:00 pmAllentown-Bethlehem

May 5

ABE5:59 pmAllentown-Bethlehem

8h 37m

1 stop

DEN12:36 amDenver Intl

$277

Delta

May 2

DEN1:25 pmDenver Intl

7h 35m

1 stop

ABE11:00 pmAllentown-Bethlehem

May 8

ABE6:15 pmAllentown-Bethlehem

8h 18m

1 stop

DEN12:33 amDenver Intl

$297

Delta

May 1

DEN1:25 pmDenver Intl

7h 35m

1 stop

ABE11:00 pmAllentown-Bethlehem

May 5

ABE5:59 pmAllentown-Bethlehem

8h 37m

1 stop

DEN12:36 amDenver Intl

$328

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 5/29

5:42 pm-11:04 pm

Nonstop3h 22m

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

$171

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

Allentown-Bethlehem

Mon 6/8

7:30 am-9:32 am

Nonstop4h 02m

$219

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 5/2

1:25 pm-11:00 pm

1 stop7h 35m

Allentown-Bethlehem

Tue 5/5

5:59 pm-12:36 am

1 stop8h 37m

$277

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 4/22

11:59 pm-2:56 pm

1 stop12h 57m

Allentown-Bethlehem

Mon 4/27

1:41 pm-5:40 pm

2 stops29h 59m

$278

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 5/29

5:42 pm-11:04 pm

Nonstop3h 22m

Allentown-Bethlehem

Mon 6/1

3:32 pm-11:58 pm

2 stops34h 26m

$284

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 5/2

1:25 pm-11:00 pm

1 stop7h 35m

Allentown-Bethlehem

Fri 5/8

6:15 pm-12:33 am

1 stop8h 18m

$297

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 4/21

3:00 pm-11:28 pm

1 stop6h 28m

Allentown-Bethlehem

Tue 4/28

6:00 am-10:39 am

1 stop6h 39m

$317

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Sat 5/23

12:16 pm-9:17 pm

1 stop7h 01m

Allentown-Bethlehem

Sat 5/30

6:15 am-11:10 am

1 stop6h 55m

$429

Grand JunctionAllentown

GJT - ABE

GJTABE

Grand Junction Regnl

Tue 8/25

5:30 am-4:56 pm

2 stops9h 26m

Allentown-Bethlehem

Sat 8/29

10:38 am-8:36 pm

2 stops11h 58m

$459

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Wed 4/8

12:22 pm-12:22 am

2 stops10h 00m

Allentown-Bethlehem

Tue 4/14

12:57 pm-10:25 pm

2 stops11h 28m

$519

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Allentown

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Allentown?

The month of October is, on average, the cheapest month to fly to Allentown from Colorado, with most prices found around $180. If you aren’t able to travel to Allentown during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $194.

What is the cheapest day to depart on your flight to Allentown?

The cheapest day to depart from Colorado to Allentown is on a Thursday when prices can be found for as low as $196. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Sunday is $210.

What is the cheapest Colorado to Allentown-Bethlehem flight route?

Fly from Denver Intl to Allentown-Bethlehem for the best Colorado - Allentown-Bethlehem flight prices

What cabin class options are available on Colorado to Allentown-Bethlehem flights?

There is only 1 cabin class available to choose from on Colorado to Allentown-Bethlehem flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Allentown flights?

No. A direct flight is the cheapest option for a flight between Colorado to Allentown.

Cheap Colorado to Allentown flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Allentown

Fastest flight time	3h 22m
Direct flights	Tue and Sat
Airports in Allentown	1 airport

The fastest flight from Colorado to Allentown takes 3h 22m

Direct flights go from Colorado to Allentown on Tuesday and Saturday. The only airline offering direct flights is Allegiant Air.

There is 1 airport in Allentown. From Colorado there are direct flights to Allentown-Bethlehem (ABE).

Search flight deals

When did momondo last update prices for flights from Colorado to Allentown-Bethlehem Airport?
Prices for flights from Colorado to Allentown-Bethlehem Airport were last updated today.
How many operators does momondo search for flights from Colorado to Allentown-Bethlehem Airport?
As of March 2026, there are 4 operators available to choose from for flights from Colorado to Allentown-Bethlehem Airport.
How old do you have to be to fly from Colorado to Allentown-Bethlehem Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The travel and health documents required for your trip to Allentown-Bethlehem Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Allentown-Bethlehem Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Colorado to Allentown?
momondo data reveals that the most frequently booked plane model on the route from Colorado to Allentown is Airbus A321neo, representing 15.00% of all bookings. The subsequent popular models are Boeing 757-200 at 15.00%, Airbus A320-100/200 at 15.00%, and Boeing 737 MAX 8 at 10.00%.

Best airlines flying from Colorado to Allentown

Compare and see reviews for airlines that fly from Colorado to Allentown with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $128	Free Cancellation	Rating 7.3 710 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $163	Free Cancellation	Rating 7.4 9,469 reviews	Search United Airlines flights
American Airlines	PriceFrom $169	Free Cancellation	Rating 7.1 11,491 reviews	Search American Airlines flights
Delta	PriceFrom $199	Free Cancellation	Rating 7.9 8,321 reviews	Search Delta flights

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Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Allentown?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Allentown from Colorado.

Can I find flights from Colorado to Allentown with flexible booking policies on momondo?

Flights from Colorado to Allentown with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Colorado to Allentown?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Allentown from Colorado.

I’m not ready to book a flight from Colorado to Allentown right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Allentown now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Allentown and let you know when they change.