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

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 46% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 8 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

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 December 2025, there are 5 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.

$129 Cheap Flights from Allentown to Colorado in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:01 pm - 9:41 pm

ABE

DEN

32h 40m2 stops

11:59 pm - 8:15 pm

DEN

ABE

18h 16m1 stop

$233Multiple Airlines

Mon, Feb 9 - Wed, Feb 18

2:00 pm - 7:28 pm

ABE

DEN

7h 28m1 stop

12:00 pm - 10:50 pm

DEN

ABE

8h 50m1 stop

$253Delta

Sat, Jan 17 - Tue, Jan 27

3:01 pm - 1:09 pm

ABE

DEN

24h 08m2 stops

8:55 am - 8:15 pm

DEN

ABE

9h 20m1 stop

$255Multiple Airlines

Mon, Feb 9 - Thu, Feb 19

5:59 pm - 10:50 pm

ABE

DEN

6h 51m1 stop

7:05 am - 5:16 pm

DEN

ABE

8h 11m1 stop

$257Delta

Tue, Feb 10 - Thu, Feb 19

1:02 pm - 8:53 pm

ABE

DEN

9h 51m2 stops

3:59 pm - 12:30 am

DEN

ABE

6h 31m1 stop

$262American Airlines

Tue, Feb 10 - Thu, Feb 19

5:59 pm - 10:55 pm

ABE

DEN

6h 56m1 stop

1:16 pm - 10:50 pm

DEN

ABE

7h 34m1 stop

$269Delta

Tue, Jan 13 - Wed, Jan 28

2:00 pm - 7:28 pm

ABE

DEN

7h 28m1 stop

1:16 pm - 10:50 pm

DEN

ABE

7h 34m1 stop

$273Delta

Sat, Jan 17 - Thu, Jan 29

5:59 pm - 12:28 am

ABE

DEN

8h 29m1 stop

2:45 pm - 10:45 pm

DEN

ABE

6h 00m1 stop

$283Delta

Wed, Feb 11 - Sat, Feb 14

11:30 am - 10:27 pm

ABE

GJT

12h 57m2 stops

7:00 am - 9:05 pm

GJT

ABE

12h 05m2 stops

$377United Airlines

Wed, Jan 21 - Sat, Jan 24

11:30 am - 6:25 pm

ABE

ASE

8h 55m1 stop

7:45 am - 4:22 pm

ASE

ABE

6h 37m1 stop

$379United Airlines

Sat, Jan 24 - Wed, Jan 28

Delta flights from Allentown to Colorado

Our best Delta deals on Allentown to Colorado flight tickets

Delta

Jan 17

ABE2:00 pmAllentown-Bethlehem

9h 14m

1 stop

DEN9:14 pmDenver Intl

Jan 28

DEN12:00 pmDenver Intl

8h 50m

1 stop

ABE10:50 pmAllentown-Bethlehem

$253

Find similar

Delta

Feb 10

ABE5:59 pmAllentown-Bethlehem

6h 51m

1 stop

DEN10:50 pmDenver Intl

Feb 19

DEN7:05 amDenver Intl

8h 11m

1 stop

ABE5:16 pmAllentown-Bethlehem

$257

Find similar

Delta

Jan 13

ABE5:59 pmAllentown-Bethlehem

6h 56m

1 stop

DEN10:55 pmDenver Intl

Jan 28

DEN1:16 pmDenver Intl

7h 34m

1 stop

ABE10:50 pmAllentown-Bethlehem

$269

Find similar

American Airlines flights from Allentown to Colorado

Our best American Airlines deals on Allentown to Colorado flight tickets

American Airlines

Feb 10

ABE1:02 pmAllentown-Bethlehem

9h 51m

2 stops

DEN8:53 pmDenver Intl

Feb 19

DEN3:59 pmDenver Intl

6h 31m

1 stop

ABE12:30 amAllentown-Bethlehem

$262

Find similar

American Airlines

Jan 20

ABE1:02 pmAllentown-Bethlehem

12h 14m

2 stops

DEN11:16 pmDenver Intl

Jan 29

DEN11:29 amDenver Intl

8h 57m

1 stop

ABE10:26 pmAllentown-Bethlehem

$316

Find similar

American Airlines

Feb 11

ABE1:02 pmAllentown-Bethlehem

12h 14m

2 stops

DEN11:16 pmDenver Intl

Feb 14

DEN3:59 pmDenver Intl

6h 31m

1 stop

ABE12:30 amAllentown-Bethlehem

$336

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 2/9

3:01 pm-9:41 pm

2 stops32h 40m

Denver Intl

Wed 2/18

11:59 pm-8:15 pm

1 stop18h 16m

$233

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sat 1/17

2:00 pm-7:28 pm

1 stop7h 28m

Denver Intl

Tue 1/27

12:00 pm-10:50 pm

1 stop8h 50m

$253

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 2/9

3:01 pm-1:09 pm

2 stops24h 08m

Denver Intl

Thu 2/19

8:55 am-8:15 pm

1 stop9h 20m

$255

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/10

5:59 pm-10:50 pm

1 stop6h 51m

Denver Intl

Thu 2/19

7:05 am-5:16 pm

1 stop8h 11m

$257

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/10

1:02 pm-8:53 pm

2 stops9h 51m

Denver Intl

Thu 2/19

3:59 pm-12:30 am

1 stop6h 31m

$262

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 1/13

5:59 pm-10:55 pm

1 stop6h 56m

Denver Intl

Wed 1/28

1:16 pm-10:50 pm

1 stop7h 34m

$269

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sat 1/17

2:00 pm-7:28 pm

1 stop7h 28m

Denver Intl

Thu 1/29

1:16 pm-10:50 pm

1 stop7h 34m

$273

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/11

5:59 pm-12:28 am

1 stop8h 29m

Denver Intl

Sat 2/14

2:45 pm-10:45 pm

1 stop6h 00m

$283

AllentownGrand Junction

ABE - GJT

ABEGJT

Allentown-Bethlehem

Wed 1/21

11:30 am-10:27 pm

2 stops12h 57m

Grand Junction Regnl

Sat 1/24

7:00 am-9:05 pm

2 stops12h 05m

$377

AllentownAspen

ABE - ASE

ABEASE

Allentown-Bethlehem

Sat 1/24

11:30 am-6:25 pm

1 stop8h 55m

Aspen Pitkin County

Wed 1/28

7:45 am-4:22 pm

1 stop6h 37m

$379

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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

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 $208. The month of October is another great option to travel to Colorado, with average flight prices from Allentown averaging around $213.

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

The cheapest day to depart from Allentown to Colorado is on a Saturday when prices can be found for as low as $154. On the other hand, Monday 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 $399.

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 $219. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $431 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 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 $323 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 $193 on momondo.

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

There is only 1 cabin class available to choose from on Allentown-Bethlehem 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	$382
Fastest flight time	4h 02m
Direct flights	Sat
Airports in Colorado	87 airports

The best flight deal from Allentown to Colorado found on momondo in the last 72 hours is $382

The fastest flight from Allentown to Colorado takes 4h 02m

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

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

Search flight deals

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 December 2025, there are 5 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 48.78% of the total bookings. Other popular models include Airbus A320neo with 9.76%, Boeing 737-800 with 8.54%, and Airbus A321-100/200 with 7.32%.

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
Frontier	PriceFrom $89	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
Allegiant Air	PriceFrom $120	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.4 9,096 reviews	Search United Airlines flights
Delta	PriceFrom $262	Free Cancellation	Rating 7.9 8,018 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.

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.

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Find better results for your trip to Colorado

Popular cities in Colorado

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Cheap flights from Allentown to Colorado from $129

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 2/28. 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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Delta flights from Allentown to Colorado

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How to get the cheapest flight ticket from Allentown to Colorado

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 $208. The month of October is another great option to travel to Colorado, with average flight prices from Allentown averaging around $213.

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?

The cheapest time of day to fly to Colorado is in the morning when flights can be purchased for as low as $219. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $431 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 to Colorado?

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

There is only 1 cabin class available to choose from on Allentown-Bethlehem 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.

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

What airlines fly 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

Fastest flight time

Direct flights

Airports in Colorado

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

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

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

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

What is the most popular plane model 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?

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

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

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

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

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

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo