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 45% 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.

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 32m on average. On the other hand, flying from Vail to Newark Airport takes 4h 01m 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 is the cheapest airline that flies from Colorado to Allentown-Bethlehem?

Delta, American Airlines, and Allegiant Air 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 February 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.

$154 Cheap Flights from Colorado to Allentown in 2026

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Find the cheapest flights from Colorado to Allentown

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One-way

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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

$158Allegiant Air

Fri, May 22 - Mon, May 25

10:22 am - 3:49 pm

DEN

ABE

3h 27mnonstop

7:30 am - 9:32 am

ABE

DEN

4h 02mnonstop

$232Allegiant Air

Fri, Jun 5 - Mon, Jun 8

7:20 am - 5:12 pm

DEN

ABE

7h 52m

1 stop

5:58 pm - 10:17 pm

ABE

DEN

6h 19m

1 stop

$240Delta

Wed, Mar 4 - Wed, Mar 11

7:20 am - 5:12 pm

DEN

ABE

7h 52m

1 stop

6:32 am - 1:34 pm

ABE

DEN

9h 02m

1 stop

$268Delta

Tue, Mar 3 - Tue, Mar 10

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

7:30 am - 9:32 am

ABE

DEN

4h 02mnonstop

$293Allegiant Air

Mon, Jun 1 - Fri, Jun 5

4:03 pm - 12:29 am

DEN

ABE

6h 26m

1 stop

7:41 am - 1:15 pm

ABE

DEN

7h 34m

1 stop

$306American Airlines

Fri, Feb 27 - Tue, Mar 3

10:20 am - 11:31 pm

DEN

ABE

11h 11m

2 stops

12:45 pm - 5:45 pm

ABE

DEN

7h 00m

1 stop

$310American Airlines

Tue, Mar 3 - Tue, Mar 10

5:59 am - 4:48 pm

COS

ABE

8h 49m

2 stops

6:28 am - 10:55 am

ABE

COS

6h 27m

1 stop

$454United Airlines

Sat, Feb 14 - Wed, Feb 18

1:32 pm - 11:50 am

MTJ

ABE

20h 18m

2 stops

6:28 am - 12:02 pm

ABE

MTJ

7h 34m

1 stop

$483United Airlines

Fri, Feb 27 - Tue, Mar 3

10:57 am - 3:45 pm

COS

ABE

26h 48m

2 stops

6:47 pm - 10:07 am

ABE

COS

17h 20m

1 stop

$491Multiple Airlines

Fri, Mar 6 - Sun, Mar 8

Allegiant Air flights from Colorado to Allentown

Our best Allegiant Air deals on Colorado to Allentown flight tickets

Allegiant Air

May 22

DEN5:42 pmDenver Intl

3h 22m

ABE11:04 pmAllentown-Bethlehem

May 25

ABE2:50 pmAllentown-Bethlehem

4h 02m

DEN4:52 pmDenver Intl

$158

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

$232

Allegiant Air

Jun 1

DEN5:42 pmDenver Intl

3h 22m

ABE11:04 pmAllentown-Bethlehem

Jun 5

ABE7:30 amAllentown-Bethlehem

4h 02m

DEN9:32 amDenver Intl

$293

American Airlines flights from Colorado to Allentown

Our best American Airlines deals on Colorado to Allentown flight tickets

American Airlines

Feb 27

DEN4:03 pmDenver Intl

6h 26m

1 stop

ABE12:29 amAllentown-Bethlehem

Mar 3

ABE7:41 amAllentown-Bethlehem

7h 34m

1 stop

DEN1:15 pmDenver Intl

$306

American Airlines

Mar 3

DEN10:20 amDenver Intl

11h 11m

2 stops

ABE11:31 pmAllentown-Bethlehem

Mar 10

ABE12:45 pmAllentown-Bethlehem

7h 00m

1 stop

DEN5:45 pmDenver Intl

$310

American Airlines

Mar 3

DEN10:20 amDenver Intl

11h 11m

2 stops

ABE11:31 pmAllentown-Bethlehem

Mar 10

ABE7:41 amAllentown-Bethlehem

11h 36m

2 stops

DEN5:17 pmDenver Intl

$315

Fly from

Fly to

Route

Depart

Return

Price

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 5/22

5:42 pm-11:04 pm

Nonstop3h 22m

Allentown-Bethlehem

Mon 5/25

2:50 pm-4:52 pm

Nonstop4h 02m

$158

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

$232

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 3/4

7:20 am-5:12 pm

1 stop7h 52m

Allentown-Bethlehem

Wed 3/11

5:58 pm-10:17 pm

1 stop6h 19m

$240

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 3/3

7:20 am-5:12 pm

1 stop7h 52m

Allentown-Bethlehem

Tue 3/10

6:32 am-1:34 pm

1 stop9h 02m

$268

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Mon 6/1

5:42 pm-11:04 pm

Nonstop3h 22m

Allentown-Bethlehem

Fri 6/5

7:30 am-9:32 am

Nonstop4h 02m

$293

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 2/27

4:03 pm-12:29 am

1 stop6h 26m

Allentown-Bethlehem

Tue 3/3

7:41 am-1:15 pm

1 stop7h 34m

$306

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 3/3

10:20 am-11:31 pm

2 stops11h 11m

Allentown-Bethlehem

Tue 3/10

12:45 pm-5:45 pm

1 stop7h 00m

$310

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Sat 2/14

5:59 am-4:48 pm

2 stops8h 49m

Allentown-Bethlehem

Wed 2/18

6:28 am-10:55 am

1 stop6h 27m

$454

MontroseAllentown

MTJ - ABE

MTJABE

Montrose County

Fri 2/27

1:32 pm-11:50 am

2 stops20h 18m

Allentown-Bethlehem

Tue 3/3

6:28 am-12:02 pm

1 stop7h 34m

$483

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Fri 3/6

10:57 am-3:45 pm

2 stops26h 48m

Allentown-Bethlehem

Sun 3/8

6:47 pm-10:07 am

1 stop17h 20m

$491

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 September is also cheap. Prices for this month can be found on momondo for an average of $206.

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

The cheapest day to depart from Colorado to Allentown is on a Tuesday when prices can be found for as low as $192. 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 $227.

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?

You could potentially save up to 31% on your flight if you consider stops on a Colorado to Allentown flight.

Cheap Colorado to Allentown flight deals and tips

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

Best Price Found	$289
Fastest flight time	3h 22m
Direct flights	Tue and Sat
Airports in Allentown	1 airport

The best flight deal from Colorado to Allentown found on momondo in the last 72 hours is $289

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

Direct flights go from Colorado to Allentown on Tuesday and Saturday. There are no airlines offering direct flights.

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 February 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 A320-100/200, representing 22.73% of all bookings. The subsequent popular models are Airbus A321neo at 13.64%, Boeing 757-200 at 13.64%, and Boeing 737 MAX 8 at 9.09%.

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 $134	Free Cancellation	Rating 7.2 709 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $153	Free Cancellation	Rating 7.2 11,222 reviews	Search American Airlines flights
United Airlines	PriceFrom $163	Free Cancellation	Rating 7.4 9,236 reviews	Search United Airlines flights
Delta	PriceFrom $199	Free Cancellation	Rating 7.9 8,146 reviews	Search Delta flights

Lehighton

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.

An easier way to manage your Allentown trip

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Johnstown Cambria County Airport

Latrobe Westmoreland County Airport

State College University Park Airport

Cheap flights from Colorado to Allentown from $154

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Allentown departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Colorado to Allentown

What is the cheapest month to fly to Allentown?

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

The cheapest day to depart from Colorado to Allentown is on a Tuesday when prices can be found for as low as $192. 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 $227.

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?

You could potentially save up to 31% on your flight if you consider stops on a Colorado to Allentown flight.

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

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

What airlines fly to Allentown?

How long does it take to fly 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

Best Price Found

Fastest flight time

Direct flights

Airports in Allentown

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

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

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

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

What is the most popular plane model from Colorado to Allentown?

Best airlines flying from Colorado to Allentown

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

Traveling to a place near Allentown?

Why use momondo?

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

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

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

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

An easier way to manage your Allentown trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Pennsylvania

Fly your favorite airline to Allentown

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Allentown. Availability may vary depending on flight origin and airline.

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