What airlines fly to Colorado?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Colorado from Allentown according to our data. United Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 7 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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

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

How many flights depart from Allentown to Colorado on average per week?

1 flights are operational weekly from Allentown to Colorado as of June 2026. The most popular departure day for this route is Fri, with 100% of flights per week taking off on this day.

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

Prices for flights from Allentown-Bethlehem Airport to Colorado are updated daily.

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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado 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 Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$49 Cheap Flights from Allentown to Colorado in 2026

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Find the cheapest flights from Allentown to Colorado

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 9:16 am

ABE

DEN

3h 46mnonstop

10:14 am - 3:42 pm

DEN

ABE

3h 28mnonstop

$129Allegiant Air

ma., sep. 28 - fr., okt. 2

7:30 am - 9:24 am

ABE

DEN

3h 54mnonstop

10:14 am - 3:42 pm

DEN

ABE

3h 28mnonstop

$131Allegiant Air

fr., okt. 23 - fr., okt. 30

8:00 am - 9:46 am

ABE

DEN

3h 46mnonstop

9:36 am - 3:08 pm

DEN

ABE

3h 32mnonstop

$134Allegiant Air

ma., sep. 7 - fr., sep. 11

7:30 am - 9:16 am

ABE

DEN

3h 46mnonstop

9:36 am - 3:08 pm

DEN

ABE

3h 32mnonstop

$136Allegiant Air

ma., sep. 14 - fr., sep. 18

6:00 am - 6:40 pm

ABE

COS

14h 40m

2 stops

12:37 pm - 10:40 pm

COS

ABE

8h 03m

1 stop

$392American Airlines

fr., aug. 21 - ti., sep. 1

6:00 am - 6:40 pm

ABE

COS

14h 40m

2 stops

8:00 am - 10:40 pm

COS

ABE

12h 40m

2 stops

$397American Airlines

fr., aug. 21 - ti., sep. 1

6:15 am - 10:33 am

ABE

COS

6h 18m

1 stop

11:55 am - 9:00 pm

COS

ABE

7h 05m

1 stop

$411United Airlines

fr., aug. 21 - ti., sep. 1

5:36 pm - 11:55 pm

ABE

COS

8h 19m

2 stops

11:55 am - 9:00 pm

COS

ABE

7h 05m

1 stop

$485United Airlines

on., sep. 2 - lø., sep. 5

1:00 pm - 10:30 pm

ABE

COS

11h 30m

2 stops

1:40 pm - 10:46 pm

COS

ABE

7h 06m

1 stop

$490Delta

on., okt. 21 - ma., okt. 26

6:20 am - 11:23 am

ABE

ASE

7h 03m

1 stop

7:36 am - 5:30 pm

ASE

ABE

7h 54m

1 stop

$5,252Delta

to., jul. 2 - ma., jul. 6

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Allegiant Air flights from Allentown to Colorado

Our best Allegiant Air deals on Allentown to Colorado flight tickets

Allegiant Air

Sep 28

ABE7:30 amAllentown-Bethlehem

3h 46m

DEN9:16 amDenver Intl

Oct 2

DEN10:14 amDenver Intl

3h 28m

ABE3:42 pmAllentown-Bethlehem

$129

Allegiant Air

Oct 23

ABE7:30 amAllentown-Bethlehem

3h 54m

DEN9:24 amDenver Intl

Oct 30

DEN10:14 amDenver Intl

3h 28m

ABE3:42 pmAllentown-Bethlehem

$131

Allegiant Air

Sep 7

ABE8:00 amAllentown-Bethlehem

3h 46m

DEN9:46 amDenver Intl

Sep 11

DEN9:36 amDenver Intl

3h 32m

ABE3:08 pmAllentown-Bethlehem

$134

American Airlines flights from Allentown to Colorado

Our best American Airlines deals on Allentown to Colorado flight tickets

American Airlines

Sep 16

ABE5:10 pmAllentown-Bethlehem

9h 07m

1 stop

DEN12:17 amDenver Intl

Sep 23

DEN12:25 pmDenver Intl

7h 53m

1 stop

ABE10:18 pmAllentown-Bethlehem

$227

American Airlines

Aug 22

ABE9:36 amAllentown-Bethlehem

10h 03m

2 stops

DEN5:39 pmDenver Intl

Aug 25

DEN3:02 pmDenver Intl

6h 23m

1 stop

ABE11:25 pmAllentown-Bethlehem

$253

American Airlines

Sep 29

ABE2:25 pmAllentown-Bethlehem

10h 09m

2 stops

DEN10:34 pmDenver Intl

Oct 3

DEN10:47 amDenver Intl

9h 31m

2 stops

ABE10:18 pmAllentown-Bethlehem

$258

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

ma. 9/28

7:30 am-9:16 am

Nonstop3h 46m

Denver Intl

fr. 10/2

10:14 am-3:42 pm

Nonstop3h 28m

$129

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

fr. 10/23

7:30 am-9:24 am

Nonstop3h 54m

Denver Intl

fr. 10/30

10:14 am-3:42 pm

Nonstop3h 28m

$131

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

ma. 9/7

8:00 am-9:46 am

Nonstop3h 46m

Denver Intl

fr. 9/11

9:36 am-3:08 pm

Nonstop3h 32m

$134

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

ma. 9/14

7:30 am-9:16 am

Nonstop3h 46m

Denver Intl

fr. 9/18

9:36 am-3:08 pm

Nonstop3h 32m

$136

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

fr. 8/21

6:00 am-6:40 pm

2 stops14h 40m

Colorado Springs

ti. 9/1

12:37 pm-10:40 pm

1 stop8h 03m

$392

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

fr. 8/21

6:00 am-6:40 pm

2 stops14h 40m

Colorado Springs

ti. 9/1

8:00 am-10:40 pm

2 stops12h 40m

$397

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

fr. 8/21

6:15 am-10:33 am

1 stop6h 18m

Colorado Springs

ti. 9/1

11:55 am-9:00 pm

1 stop7h 05m

$411

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

on. 9/2

5:36 pm-11:55 pm

2 stops8h 19m

Colorado Springs

lø. 9/5

11:55 am-9:00 pm

1 stop7h 05m

$485

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

on. 10/21

1:00 pm-10:30 pm

2 stops11h 30m

Colorado Springs

ma. 10/26

1:40 pm-10:46 pm

1 stop7h 06m

$490

AllentownAspen

ABE - ASE

ABEASE

Allentown-Bethlehem

to. 7/2

6:20 am-11:23 am

1 stop7h 03m

Aspen Pitkin County

ma. 7/6

7:36 am-5:30 pm

1 stop7h 54m

$5,252

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Allentown to Colorado

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 Colorado?

The month of September is, on average, the cheapest month to fly to Colorado from Allentown, with most prices found around $106. The month of August is another great option to travel to Colorado, with average flight prices from Allentown averaging around $106.

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

The cheapest day to depart from Allentown to Colorado is on a Sunday when prices can be found for as low as $175. On the other hand, Friday is the most expensive day to depart from Allentown because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $273.

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

The cheapest time of day to fly to Colorado is in the morning when flights can be purchased for as low as $240. At noon is when there is more demand to fly to Colorado, so prices are often more expensive at around $246 per ticket.

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

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

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

You are more likely to see cheaper flights to Colorado from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $308 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Allentown for as low as $180 on momondo.

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

There is only 1 cabin class available to choose from on Allentown to Colorado 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 Allentown to Colorado flights?

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

Cheap Allentown to Colorado flight deals and tips

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

Best Price Found	$93
Fastest flight time	3h 46m
Direct flights	Tue and Sat
Airports in Colorado	87 airports

The best one-way flight to Colorado from Allentown in the past 72 hours is $93. The best round-trip flight deal from Allentown to Colorado found on momondo in the last 72 hours is $188.

The fastest flight from Allentown to Colorado takes 3h 46m

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

There are 87 airports in Colorado. From Allentown there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Allentown to Colorado

When did momondo last update prices for flights from Allentown-Bethlehem Airport to Colorado?
Prices for flights from Allentown-Bethlehem Airport to Colorado are updated daily.
How many operators does momondo search for flights from Allentown-Bethlehem Airport to Colorado?
As of June 2026, there are 4 operators available to choose from for flights from Allentown-Bethlehem Airport to Colorado.
How old do you have to be to fly from Allentown-Bethlehem Airport to Colorado?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado 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 Colorado. 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 Allentown to Colorado?
Based on momondo bookings for flights between Allentown and Colorado, the leading plane model is Airbus A320-100/200, making up 53.74% of the total bookings. Other popular models include Boeing 737 MAX 8 with 13.02%, Airbus A321neo with 10.80%, and Airbus A320neo with 5.82%.

Best airlines flying from Allentown to Colorado

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $127	Free Cancellation	Rating 7.3 700 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $177	Free Cancellation	Rating 7.4 9,820 reviews	Search United Airlines flights
American Airlines	PriceFrom $188	Free Cancellation	Rating 7.1 11,649 reviews	Search American Airlines flights
Delta	PriceFrom $252	Free Cancellation	Rating 7.9 8,405 reviews	Search Delta flights

Why use momondo?

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

It is quick and easy to find Allentown to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

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

Yes. momondo allows you to filter the results for Allentown to Colorado flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Colorado from Allentown. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Allentown to Colorado flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Flights to New Yorkfrom $52

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Flights to Orlandofrom $55

Flights to Chicagofrom $60

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $56

Flights to Bostonfrom $83

Flights to Atlantafrom $61

Flights to Dallasfrom $73

Flights to Fort Lauderdalefrom $56

Cheap flights from Allentown to Colorado from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Colorado departing on 8/17. 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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Allegiant Air flights from Allentown to Colorado

Our best Allegiant Air deals on Allentown to Colorado flight tickets

American Airlines flights from Allentown to Colorado

Our best American Airlines deals on Allentown to Colorado flight tickets

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How to get the cheapest flight ticket from Allentown to Colorado

What is the cheapest month to fly to Colorado?

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

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

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

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

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

Can stopping save me money on Allentown to Colorado flights?

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

What airlines fly to Colorado?

How many flights depart from Allentown to Colorado on average per week?

Cheap Allentown to Colorado flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

Frequently asked questions about flying from Allentown to Colorado

Best airlines flying from Allentown to Colorado

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

Why use momondo?

An easier way to manage your Colorado 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 Colorado

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