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 43% 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 35m on average. On the other hand, flying from Montrose to Newark Airport takes 4h 06m 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?

Allegiant Air, American Airlines, and United 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 August 2025, there are 5 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.

$67 Cheap Flights from Colorado to Allentown in 2025

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Find the cheapest flights from Colorado to Allentown

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

10:15 am - 3:42 pmDEN-ABE

3h 27mnonstop

7:30 am - 9:25 amABE-DEN

3h 55mnonstop

$120Allegiant Air

Find Deal

Thu, Oct 16 - Sun, Oct 19

9:51 am - 3:13 pmDEN-ABE

3h 22mnonstop

7:00 am - 9:01 amABE-DEN

4h 01mnonstop

$135Allegiant Air

Find Deal

Thu, Aug 28 - Sun, Aug 31

7:09 am - 6:01 pmDEN-ABE

8h 52m1 stop

2:52 pm - 7:25 pmABE-DEN

6h 33m1 stop

$220American Airlines

Find Deal

Sat, Sep 20 - Sat, Sep 27

1:52 pm - 10:40 pmDEN-ABE

6h 48m1 stop

1:46 pm - 9:08 pmABE-DEN

9h 22m1 stop

$221American Airlines

Find Deal

Sat, Nov 1 - Tue, Nov 4

1:25 pm - 9:54 pmDEN-ABE

6h 29m1 stop

1:00 pm - 5:56 pmABE-DEN

6h 56m1 stop

$302United Airlines

Find Deal

Wed, Sep 3 - Sat, Sep 6

7:48 am - 4:53 pmDEN-ABE

7h 05m1 stop

1:00 pm - 5:56 pmABE-DEN

6h 56m1 stop

$314United Airlines

Find Deal

Sat, Aug 23 - Sat, Aug 30

1:16 pm - 10:15 pmCOS-ABE

6h 59m1 stop

6:00 am - 12:11 pmABE-COS

8h 11m1 stop

$344Delta

Find Deal

Fri, Oct 24 - Mon, Oct 27

10:15 am - 3:42 pmDEN-ABE

3h 27mnonstop

3:01 pm - 3:52 pmABE-DEN

26h 51m3 stops

$360

Find Deal

Thu, Oct 9 - Thu, Oct 16

9:51 am - 3:13 pmDEN-ABE

3h 22mnonstop

9:15 pm - 9:19 amABE-DEN

38h 04m3 stops

$373

Find Deal

Thu, Aug 28 - Sun, Aug 31

2:00 pm - 10:46 pmDEN-ABE

6h 46m1 stop

12:48 pm - 5:13 pmABE-DEN

6h 25m1 stop

$457Delta

Find Deal

Wed, Sep 10 - Sat, Sep 13

United Airlines flights from Colorado to Allentown

Our best United Airlines deals on Colorado to Allentown flight tickets

United Airlines

Sep 3

DEN1:25 pmDenver Intl

6h 29m

1 stop

ABE9:54 pmAllentown-Bethlehem

Sep 6

ABE1:00 pmAllentown-Bethlehem

6h 56m

1 stop

DEN5:56 pmDenver Intl

$302

Find similar

United Airlines

Aug 23

DEN7:48 amDenver Intl

7h 05m

1 stop

ABE4:53 pmAllentown-Bethlehem

Aug 30

ABE1:00 pmAllentown-Bethlehem

6h 56m

1 stop

DEN5:56 pmDenver Intl

$314

Find similar

United Airlines

Sep 3

DEN1:25 pmDenver Intl

6h 29m

1 stop

ABE9:54 pmAllentown-Bethlehem

Sep 9

ABE5:28 pmAllentown-Bethlehem

6h 31m

1 stop

DEN9:59 pmDenver Intl

$315

Find similar

American Airlines flights from Colorado to Allentown

Our best American Airlines deals on Colorado to Allentown flight tickets

American Airlines

Sep 20

DEN7:09 amDenver Intl

8h 52m

1 stop

ABE6:01 pmAllentown-Bethlehem

Sep 27

ABE2:52 pmAllentown-Bethlehem

6h 33m

1 stop

DEN7:25 pmDenver Intl

$220

Find similar

American Airlines

Nov 1

DEN1:52 pmDenver Intl

6h 48m

1 stop

ABE10:40 pmAllentown-Bethlehem

Nov 4

ABE1:46 pmAllentown-Bethlehem

9h 22m

1 stop

DEN9:08 pmDenver Intl

$221

Find similar

American Airlines

Sep 10

DEN7:16 amDenver Intl

9h 14m

2 stops

ABE6:30 pmAllentown-Bethlehem

Sep 13

ABE2:52 pmAllentown-Bethlehem

9h 15m

1 stop

DEN10:07 pmDenver Intl

$226

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 10/16

10:15 am-3:42 pm

Nonstop3h 27m

Allentown-Bethlehem

Sun 10/19

7:30 am-9:25 am

Nonstop3h 55m

$120

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 8/28

9:51 am-3:13 pm

Nonstop3h 22m

Allentown-Bethlehem

Sun 8/31

7:00 am-9:01 am

Nonstop4h 01m

$135

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 9/20

7:09 am-6:01 pm

1 stop8h 52m

Allentown-Bethlehem

Sat 9/27

2:52 pm-7:25 pm

1 stop6h 33m

$220

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 11/1

1:52 pm-10:40 pm

1 stop6h 48m

Allentown-Bethlehem

Tue 11/4

1:46 pm-9:08 pm

1 stop9h 22m

$221

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 9/3

1:25 pm-9:54 pm

1 stop6h 29m

Allentown-Bethlehem

Sat 9/6

1:00 pm-5:56 pm

1 stop6h 56m

$302

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 8/23

7:48 am-4:53 pm

1 stop7h 05m

Allentown-Bethlehem

Sat 8/30

1:00 pm-5:56 pm

1 stop6h 56m

$314

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Fri 10/24

1:16 pm-10:15 pm

1 stop6h 59m

Allentown-Bethlehem

Mon 10/27

6:00 am-12:11 pm

1 stop8h 11m

$344

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 10/9

10:15 am-3:42 pm

Nonstop3h 27m

Allentown-Bethlehem

Thu 10/16

3:01 pm-3:52 pm

3 stops26h 51m

$360

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 8/28

9:51 am-3:13 pm

Nonstop3h 22m

Allentown-Bethlehem

Sun 8/31

9:15 pm-9:19 am

3 stops38h 04m

$373

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 9/10

2:00 pm-10:46 pm

1 stop6h 46m

Allentown-Bethlehem

Sat 9/13

12:48 pm-5:13 pm

1 stop6h 25m

$457

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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 $222. If you aren’t able to travel to Allentown during the month of October, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $224.

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 $167. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Thursday is $222.

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

In the morning is the cheapest time of day to fly from Colorado to Allentown when you can find flight prices for as low as $201. Flying to Allentown in the morning is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $268.

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

How far in advance should I book a flight to Allentown?

You are more likely to see cheaper flights to Allentown from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Allentown for around $310 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Allentown from Colorado for as low as $200 on momondo.

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

There are 1 cabin classes 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

Best Price Found	$67
Fastest flight time	3h 22m
Direct flights	Mon and Fri
Airports in Allentown	1 airport

The best one-way flight to Allentown from Colorado in the past 72 hours is $67. The best round-trip flight deal from Colorado to Allentown found on momondo in the last 72 hours is $120.

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

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

There is 1 airport near Allentown: 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 August 2025, there are 5 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 38.03% of all bookings. The subsequent popular models are Airbus A320neo at 12.68%, Airbus A321neo at 11.27%, and Boeing 737-900 at 9.86%.

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
Frontier	PriceFrom $42	Free Cancellation	Rating 5.8 3,231 reviews	Search Frontier flights
Allegiant Air	PriceFrom $74	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $160	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $163	Free Cancellation	Rating 7.4 8,917 reviews	Search United Airlines flights
Delta	PriceFrom $256	Free Cancellation	Rating 8.0 7,985 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.

An easier way to manage your Allentown trip

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Cheap flights from Colorado to Allentown from $67

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 9/14. 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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Find the cheapest flights from Colorado to Allentown

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United Airlines flights from Colorado to Allentown

Our best United Airlines deals on Colorado to Allentown flight tickets

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Our best American Airlines deals on Colorado to Allentown flight tickets

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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

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 $167. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Thursday is $222.

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

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

How far in advance should I book a flight to Allentown?

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

There are 1 cabin classes 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.

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

Allegiant Air, American Airlines, and United Airlines 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

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