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

Allegiant Air, 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 45% 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.

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

2 flights are operational weekly from Allentown to Colorado as of August 2025. The most popular departure day for this route is Thu, with 50% 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 August 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.

$53 Cheap Flights from Allentown to Colorado in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Allentown to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:30 am - 9:25 amABE-DEN

3h 55mnonstop

10:15 am - 3:42 pmDEN-ABE

3h 27mnonstop

$120Allegiant Air

Find Deal

Sun, Oct 12 - Thu, Oct 16

7:00 am - 9:01 amABE-DEN

4h 01mnonstop

10:35 am - 4:05 pmDEN-ABE

3h 30mnonstop

$124Allegiant Air

Find Deal

Sun, Aug 31 - Thu, Sep 4

1:46 pm - 9:08 pmABE-DEN

9h 22m1 stop

9:11 am - 10:53 pmDEN-ABE

11h 42m2 stops

$186American Airlines

Find Deal

Wed, Nov 5 - Sat, Nov 8

1:46 pm - 10:22 pmABE-DEN

10h 36m2 stops

10:21 am - 10:53 pmDEN-ABE

10h 32m2 stops

$191American Airlines

Find Deal

Wed, Nov 5 - Sat, Nov 8

7:00 am - 9:01 amABE-DEN

4h 01mnonstop

5:10 pm - 10:56 amDEN-ABE

15h 46m1 stop

$198

Find Deal

Sun, Aug 31 - Wed, Sep 3

8:00 am - 9:45 amABE-DEN

3h 45mnonstop

6:10 am - 10:47 pmDEN-ABE

14h 37m2 stops

$208

Find Deal

Thu, Sep 11 - Thu, Sep 18

6:30 am - 1:05 pmABE-COS

8h 35m1 stop

1:40 pm - 10:52 pmCOS-ABE

7h 12m1 stop

$459Delta

Find Deal

Thu, Feb 5 - Sun, Feb 8

6:44 am - 10:59 amABE-EGE

6h 15m1 stop

1:00 pm - 1:55 pmEGE-ABE

22h 55m1 stop

$518United Airlines

Find Deal

Tue, Jan 6 - Thu, Jan 15

6:44 am - 10:59 amABE-EGE

6h 15m1 stop

1:25 pm - 1:55 pmEGE-ABE

22h 30m2 stops

$528United Airlines

Find Deal

Tue, Jan 6 - Thu, Jan 15

6:00 am - 12:06 pmABE-COS

8h 06m1 stop

1:11 pm - 10:41 pmCOS-ABE

7h 30m1 stop

$848Delta

Find Deal

Fri, Oct 3 - Sun, Oct 5

American Airlines flights from Allentown to Colorado

Our best American Airlines deals on Allentown to Colorado flight tickets

American Airlines

Nov 5

ABE1:46 pmAllentown-Bethlehem

9h 22m

1 stop

DEN9:08 pmDenver Intl

Nov 8

DEN9:11 amDenver Intl

11h 42m

2 stops

ABE10:53 pmAllentown-Bethlehem

$186

Find similar

American Airlines

Nov 5

ABE1:46 pmAllentown-Bethlehem

10h 36m

2 stops

DEN10:22 pmDenver Intl

Nov 8

DEN10:21 amDenver Intl

10h 32m

2 stops

ABE10:53 pmAllentown-Bethlehem

$191

Find similar

American Airlines

Aug 27

ABE6:00 amAllentown-Bethlehem

6h 06m

1 stop

DEN10:06 amDenver Intl

Aug 31

DEN5:00 amDenver Intl

11h 07m

2 stops

ABE6:07 pmAllentown-Bethlehem

$305

Find similar

Allegiant Air flights from Allentown to Colorado

Our best Allegiant Air deals on Allentown to Colorado flight tickets

Allegiant Air

Oct 12

ABE7:30 amAllentown-Bethlehem

3h 55m

DEN9:25 amDenver Intl

Oct 16

DEN10:15 amDenver Intl

3h 27m

ABE3:42 pmAllentown-Bethlehem

$120

Find similar

Allegiant Air

Aug 31

ABE7:00 amAllentown-Bethlehem

4h 01m

DEN9:01 amDenver Intl

Sep 4

DEN10:35 amDenver Intl

3h 30m

ABE4:05 pmAllentown-Bethlehem

$124

Find similar

Allegiant Air

Aug 31

ABE7:00 amAllentown-Bethlehem

4h 01m

DEN9:01 amDenver Intl

Sep 7

DEN10:35 amDenver Intl

3h 30m

ABE4:05 pmAllentown-Bethlehem

$127

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sun 10/12

7:30 am-9:25 am

Nonstop3h 55m

Denver Intl

Thu 10/16

10:15 am-3:42 pm

Nonstop3h 27m

$120

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sun 8/31

7:00 am-9:01 am

Nonstop4h 01m

Denver Intl

Thu 9/4

10:35 am-4:05 pm

Nonstop3h 30m

$124

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 11/5

1:46 pm-9:08 pm

1 stop9h 22m

Denver Intl

Sat 11/8

9:11 am-10:53 pm

2 stops11h 42m

$186

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 11/5

1:46 pm-10:22 pm

2 stops10h 36m

Denver Intl

Sat 11/8

10:21 am-10:53 pm

2 stops10h 32m

$191

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sun 8/31

7:00 am-9:01 am

Nonstop4h 01m

Denver Intl

Wed 9/3

5:10 pm-10:56 am

1 stop15h 46m

$198

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Thu 9/11

8:00 am-9:45 am

Nonstop3h 45m

Denver Intl

Thu 9/18

6:10 am-10:47 pm

2 stops14h 37m

$208

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

Thu 2/5

6:30 am-1:05 pm

1 stop8h 35m

Colorado Springs

Sun 2/8

1:40 pm-10:52 pm

1 stop7h 12m

$459

AllentownVail

ABE - EGE

ABEEGE

Allentown-Bethlehem

Tue 1/6

6:44 am-10:59 am

1 stop6h 15m

Vail Eagle County

Thu 1/15

1:00 pm-1:55 pm

1 stop22h 55m

$518

AllentownVail

ABE - EGE

ABEEGE

Allentown-Bethlehem

Tue 1/6

6:44 am-10:59 am

1 stop6h 15m

Vail Eagle County

Thu 1/15

1:25 pm-1:55 pm

2 stops22h 30m

$528

AllentownColorado Springs

ABE - COS

ABECOS

Allentown-Bethlehem

Fri 10/3

6:00 am-12:06 pm

1 stop8h 06m

Colorado Springs

Sun 10/5

1:11 pm-10:41 pm

1 stop7h 30m

$848

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 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 $208. The month of August is another great option to travel to Colorado, with average flight prices from Allentown averaging around $243.

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 $160. On the other hand, Tuesday 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 $276.

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 $216. 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 $332 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 $209 on momondo.

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

There are 1 cabin classes 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	$53
Fastest flight time	3h 45m
Direct flights	Mon and Fri
Airports in Colorado	1 airport

The best one-way flight to Colorado from Allentown in the past 72 hours is $53. The best round-trip flight deal from Allentown to Colorado found on momondo in the last 72 hours is $120.

The fastest flight from Allentown to Colorado takes 3h 45m

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

There is 1 airport near Colorado: 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 August 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 56.89% of the total bookings. Other popular models include Airbus A321neo with 9.02%, Airbus A320neo with 7.77%, and Boeing 737-900 with 6.77%.

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 $44	Free Cancellation	Rating 5.8 3,219 reviews	Search Frontier flights
Allegiant Air	PriceFrom $113	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
American Airlines	PriceFrom $226	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $272	Free Cancellation	Rating 8.0 7,980 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Tue 8/19

Tue 8/26

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Colorado

Popular cities in Colorado

Flights to New Yorkfrom $58

Flights to Los Angelesfrom $46

Flights to Miamifrom $61

Flights to Chicagofrom $45

Flights to Orlandofrom $45

Flights to Las Vegasfrom $17

Flights to San Franciscofrom $59

Flights to Washington, D.C.from $58

Flights to Bostonfrom $76

Flights to Atlantafrom $48

Flights to Dallasfrom $57

Flights to Seattlefrom $71

Cheap flights from Allentown to Colorado from $53

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 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Allentown to Colorado

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Allentown to Colorado

Our best American Airlines deals on Allentown to Colorado flight tickets

Allegiant Air flights from Allentown to Colorado

Our best Allegiant Air deals on Allentown to Colorado flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Allentown to Colorado that are best for you.

See travel insights to Colorado from

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

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 August is another great option to travel to Colorado, with average flight prices from Allentown averaging around $243.

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 $216. 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 are 1 cabin classes 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?

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

What airlines fly to Colorado?

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

2 flights are operational weekly from Allentown to Colorado as of August 2025. The most popular departure day for this route is Thu, with 50% of flights per week taking off on this day.

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