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

Allegiant Air and Delta are the most popular carriers operating from Allentown-Bethlehem to Denver Intl

What airlines fly to Denver?

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Denver 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 Denver. Keep in mind that there are 7 different airlines that fly to Denver 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 Denver Intl Airport?

Prices for flights from Allentown-Bethlehem Airport to Denver Intl Airport refresh daily.

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

The number of operators available for flights from Allentown-Bethlehem Airport to Denver Intl Airport is 4 as of March 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$100 Cheap Flights from Allentown to Denver in 2026

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Find the cheapest flights from Allentown to Denver

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 8:52 am

ABE

DEN

3h 52mnonstop

10:06 am - 3:38 pm

DEN

ABE

3h 32mnonstop

$168Allegiant Air

Fri, Aug 28 - Fri, Sep 4

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

10:22 am - 3:49 pm

DEN

ABE

3h 27mnonstop

$176Allegiant Air

Mon, May 25 - Fri, Jun 5

7:00 am - 8:46 am

ABE

DEN

3h 46mnonstop

10:06 am - 3:38 pm

DEN

ABE

3h 32mnonstop

$195Allegiant Air

Fri, Sep 11 - Mon, Sep 14

1:41 pm - 6:33 am

ABE

DEN

42h 52m

2 stops

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

$212Multiple Airlines

Mon, May 11 - Fri, May 22

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

5:47 pm - 11:15 pm

DEN

ABE

3h 28mnonstop

$216Allegiant Air

Mon, Jun 1 - Fri, Jul 31

12:17 pm - 8:24 am

ABE

DEN

22h 07m

1 stop

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

$222Multiple Airlines

Tue, May 12 - Fri, May 22

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

$224Allegiant Air

Mon, May 25 - Fri, May 29

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

5:42 pm - 11:04 pm

DEN

ABE

3h 22mnonstop

$233Allegiant Air

Mon, May 25 - Mon, Jun 1

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

10:22 am - 3:49 pm

DEN

ABE

3h 27mnonstop

$237Allegiant Air

Mon, Jun 1 - Fri, Jun 5

2:50 pm - 4:52 pm

ABE

DEN

4h 02mnonstop

10:22 am - 3:49 pm

DEN

ABE

3h 27mnonstop

$238Allegiant Air

Mon, Jun 1 - Fri, Jun 5

Allegiant Air flights from Allentown to Denver

Our best Allegiant Air deals on Allentown to Denver flight tickets

Allegiant Air

Aug 28

ABE7:00 amAllentown-Bethlehem

3h 52m

DEN8:52 amDenver Intl

Sep 4

DEN10:06 amDenver Intl

3h 32m

ABE3:38 pmAllentown-Bethlehem

$168

Allegiant Air

May 25

ABE2:50 pmAllentown-Bethlehem

4h 02m

DEN4:52 pmDenver Intl

Jun 5

DEN10:22 amDenver Intl

3h 27m

ABE3:49 pmAllentown-Bethlehem

$176

Allegiant Air

Sep 11

ABE7:00 amAllentown-Bethlehem

3h 46m

DEN8:46 amDenver Intl

Sep 14

DEN10:06 amDenver Intl

3h 32m

ABE3:38 pmAllentown-Bethlehem

$195

Delta flights from Allentown to Denver

Our best Delta deals on Allentown to Denver flight tickets

Delta

Apr 14

ABE5:59 pmAllentown-Bethlehem

8h 37m

1 stop

DEN12:36 amDenver Intl

May 2

DEN7:00 amDenver Intl

8h 19m

1 stop

ABE5:19 pmAllentown-Bethlehem

$314

Delta

Mar 25

ABE5:58 pmAllentown-Bethlehem

8h 11m

1 stop

DEN12:09 amDenver Intl

Mar 31

DEN3:15 pmDenver Intl

5h 41m

1 stop

ABE10:56 pmAllentown-Bethlehem

$506

Delta

Mar 31

ABE5:58 pmAllentown-Bethlehem

8h 11m

1 stop

DEN12:09 amDenver Intl

Apr 4

DEN7:05 amDenver Intl

8h 12m

1 stop

ABE5:17 pmAllentown-Bethlehem

$533

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 8/28

7:00 am-8:52 am

Nonstop3h 52m

Denver Intl

Fri 9/4

10:06 am-3:38 pm

Nonstop3h 32m

$168

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 5/25

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$176

Quickest round-trip

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 9/11

7:00 am-8:46 am

Nonstop3h 46m

Denver Intl

Mon 9/14

10:06 am-3:38 pm

Nonstop3h 32m

$195

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 5/11

1:41 pm-6:33 am

2 stops42h 52m

Denver Intl

Fri 5/22

5:42 pm-11:04 pm

Nonstop3h 22m

$212

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 7/31

5:47 pm-11:15 pm

Nonstop3h 28m

$216

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 5/12

12:17 pm-8:24 am

1 stop22h 07m

Denver Intl

Fri 5/22

5:42 pm-11:04 pm

Nonstop3h 22m

$222

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 5/25

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 5/29

5:42 pm-11:04 pm

Nonstop3h 22m

$224

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 5/25

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Mon 6/1

5:42 pm-11:04 pm

Nonstop3h 22m

$233

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$237

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$238

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 Denver

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 Denver?

The cheapest month to fly to Denver from Allentown is in September. Flight prices, which tend to average around $208, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until October to fly from Allentown, when ticket prices are also cheap, with an average price of $213.

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

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $355. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $434.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $274. Flights in the morning are often more expensive with an average ticket price of $406.

What is the cheapest Allentown-Bethlehem to Denver Intl flight route?

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

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

You are more likely to see cheaper flights to Denver from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $301 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Allentown for as low as $172 on momondo.

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

There is only 1 cabin class available to choose from on Allentown-Bethlehem to Denver Intl 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 Denver flights?

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

How have Allentown to Denver flight prices changed over time?

As of March 2026, prices for Allentown to Denver flights are approximately 120% more expensive when compared to flights at the same time last year.

When to book flights from Allentown to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Allentown to Denver (ABE to DEN) flight deals and tips

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

Best Price Found	$112
Fastest flight time	3h 46m
Direct flights	Tue and Sat
Airports in Denver	1 airport

The best one-way flight to Denver from Allentown in the past 72 hours is $112. The best round-trip flight deal from Allentown to Denver found on momondo in the last 72 hours is $202.

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

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

There is 1 airport in Denver. From Allentown there are direct flights to Denver Intl (DEN).

Search flight deals

How far is Allentown-Bethlehem to Denver Intl by plane?
Denver Intl is 1551.0 mi away from Allentown-Bethlehem. 3h 46m is a normal flight duration for this route.
When did momondo last update prices for flights from Allentown-Bethlehem Airport to Denver Intl Airport?
Prices for flights from Allentown-Bethlehem Airport to Denver Intl Airport refresh daily.
How many operators does momondo search for flights from Allentown-Bethlehem Airport to Denver Intl Airport?
The number of operators available for flights from Allentown-Bethlehem Airport to Denver Intl Airport is 4 as of March 2026.
How old do you have to be to fly from Allentown-Bethlehem Airport to Denver Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Allentown to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Allentown to Denver is Airbus A320-100/200 (67.21% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (6.56%), Airbus A321neo (6.56%), and Boeing 737-800 (4.10%).
What is the most popular airline from Allentown to Denver?
Based on momondo bookings for flights between Allentown and Denver, the leading airline is Allegiant Air, making up 67% of the total bookings. Other popular airlines include American Airlines with 22%, Delta with 7%, and United Airlines with 4%.

Best airlines flying from Allentown to Denver

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $116	Free Cancellation	Rating 7.3 711 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $177	Free Cancellation	Rating 7.4 9,455 reviews	Search United Airlines flights
American Airlines	PriceFrom $188	Free Cancellation	Rating 7.1 11,487 reviews	Search American Airlines flights
Delta	PriceFrom $252	Free Cancellation	Rating 7.9 8,315 reviews	Search Delta flights

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Manitou Springs

Longmont

Boulder

Greeley

Cripple Creek

Keystone

Lakewood

Westminster

Thornton

Frisco

Winter Park

Grand Lake

Centennial

Englewood

Copper Mountain

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to Denver. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Denver from Allentown with this policy.

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

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 Denver from Allentown.

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

If you are simply researching potential flights to Denver, momondo offers a useful price alert feature which will track prices for flights to Denver from Allentown and alert you when they change.

An easier way to manage your Denver trip

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Airports servicing Colorado

Alamosa Airport

Aspen Pitkin County Airport

Cortez Montezuma County Airport

Colorado Springs Airport

Durango La Plata County Airport

Vail Eagle County Airport

Grand Junction Regnl Airport

Gunnison Airport

Hayden Yampa Valley Airport

Montrose County Airport

Telluride Airport

Cheap flights from Allentown to Denver from $101

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 Denver departing on 6/1. 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 Denver

Our best Allegiant Air deals on Allentown to Denver flight tickets

Delta flights from Allentown to Denver

Our best Delta deals on Allentown to Denver flight tickets

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How to get the cheapest flight ticket from Allentown to Denver

What is the cheapest month to fly to Denver?

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

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

What is the cheapest Allentown-Bethlehem to Denver Intl flight route?

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

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

Can stopping save me money on Allentown to Denver flights?

How have Allentown to Denver flight prices changed over time?

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

What airlines fly to Denver?

When to book flights from Allentown to Denver

Cheap Allentown to Denver (ABE to DEN) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

Best airlines flying from Allentown to Denver

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

Traveling to a place near Denver?

Why use momondo?

An easier way to manage your Denver 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 Colorado

Fly your favorite airline to Denver

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

Cabin classes currently available on flights to Denver

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

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