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

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

What airlines fly to Allentown?

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Allentown from Denver according to our data. United Airlines is the first choice among our users, with 49% 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.

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

Prices for flights from Denver Intl Airport to Allentown-Bethlehem Airport are refreshed on a daily basis.

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

The number of operators available for flights from Denver Intl Airport to Allentown-Bethlehem Airport is 3 as of September 2026.

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

What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

The travel and health documents you'll need for your trip to Allentown-Bethlehem 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 Allentown-Bethlehem Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$170 Cheap Flights from Denver to Allentown in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Allentown

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 6:14 pmDEN Denver Intl-ABE Allentown-Bethlehem

8h 14m1 stop Chicago O'Hare Intl

6:10 am - 1:29 pmABE Allentown-Bethlehem-DEN Denver Intl

9h 19m1 stop Charlotte Douglas

$341American Airlines

Sat, Oct 17 - Sat, Oct 24

2:29 pm - 10:12 pmDEN Denver Intl-ABE Allentown-Bethlehem

5h 43m1 stop Chicago O'Hare Intl

5:14 pm - 10:58 pmABE Allentown-Bethlehem-DEN Denver Intl

7h 44m1 stop Charlotte Douglas

$341American Airlines

Wed, Oct 21 - Mon, Oct 26

1:20 pm - 12:28 amDEN Denver Intl-ABE Allentown-Bethlehem

9h 08m2 stops Dallas/Fort Worth Charlotte Douglas

6:00 am - 11:37 amABE Allentown-Bethlehem-DEN Denver Intl

7h 37m1 stop Chicago O'Hare Intl

$346American Airlines

Sat, Oct 17 - Sat, Oct 24

10:14 am - 3:42 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 28mnonstop

7:30 am - 9:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$353Allegiant Air

Fri, Oct 16 - Mon, Oct 19

10:40 am - 10:28 pmDEN Denver Intl-ABE Allentown-Bethlehem

9h 48m1 stop Orlando

7:57 pm - 8:22 amABE Allentown-Bethlehem-DEN Denver Intl

38h 25m2 stops Tampa St. Petersburg Atlanta Hartsfield-Jackson

$357Multiple Airlines

Fri, Oct 23 - Mon, Oct 26

10:38 am - 10:44 amDEN Denver Intl-ABE Allentown-Bethlehem

22h 06m1 stop Nashville Intl

4:32 pm - 8:20 amABE Allentown-Bethlehem-DEN Denver Intl

41h 48m2 stops Orlando Houston George Bush Intcntl

$376Multiple Airlines

Wed, Oct 21 - Mon, Oct 26

10:14 am - 3:42 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 28mnonstop

7:30 am - 9:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$392Allegiant Air

Fri, Oct 9 - Mon, Oct 12

10:14 am - 3:42 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 28mnonstop

7:30 am - 9:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$398Allegiant Air

Fri, Oct 16 - Mon, Oct 19

8:51 am - 5:02 pmDEN Denver Intl-ABE Allentown-Bethlehem

6h 11m1 stop Chicago O'Hare Intl

6:20 am - 12:45 pmABE Allentown-Bethlehem-DEN Denver Intl

8h 25m1 stop Chicago O'Hare Intl

$499United Airlines

Sat, Oct 17 - Sat, Oct 24

5:25 pm - 9:02 pmDEN Denver Intl-ABE Allentown-Bethlehem

25h 37m2 stops Detroit Metropolitan Wayne County Chicago O'Hare Intl

5:36 pm - 10:44 pmABE Allentown-Bethlehem-DEN Denver Intl

7h 08m1 stop Chicago O'Hare Intl

$657United Airlines

Mon, Oct 26 - Fri, Oct 30

Cheap last minute flights

Enter your travel dates to find the best prices.

10:14 am - 3:42 pmDEN Denver Intl-ABE Allentown-Bethlehem

3h 28mnonstop

6:30 am - 8:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$298Allegiant Air

Fri, Oct 2 - Mon, Oct 5

6:40 am - 8:52 amDEN Denver Intl-ABE Allentown-Bethlehem

24h 12m2 stops Orlando Nashville Intl

6:30 am - 8:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$443Multiple Airlines

Wed, Sep 30 - Mon, Oct 5

10:38 am - 8:52 amDEN Denver Intl-ABE Allentown-Bethlehem

20h 14m1 stop Nashville Intl

6:30 am - 8:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$510Multiple Airlines

Wed, Sep 30 - Mon, Oct 5

9:19 pm - 10:28 pmDEN Denver Intl-ABE Allentown-Bethlehem

47h 09m3 stops Dallas/Fort Worth Charlotte Douglas Orlando

6:30 am - 8:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$524Multiple Airlines

Wed, Sep 30 - Mon, Oct 5

6:09 am - 10:28 pmDEN Denver Intl-ABE Allentown-Bethlehem

14h 19m2 stops Houston George Bush Intcntl Orlando

6:30 am - 8:24 amABE Allentown-Bethlehem-DEN Denver Intl

3h 54mnonstop

$526Multiple Airlines

Fri, Oct 2 - Mon, Oct 5

7:16 am - 4:40 pmDEN Denver Intl-ABE Allentown-Bethlehem

7h 24m1 stop Chicago O'Hare Intl

9:13 am - 1:47 pmABE Allentown-Bethlehem-DEN Denver Intl

6h 34m1 stop Chicago O'Hare Intl

$568American Airlines

Thu, Oct 1 - Sat, Oct 3

3:38 pm - 11:22 pmDEN Denver Intl-ABE Allentown-Bethlehem

5h 44m1 stop Charlotte Douglas

6:00 am - 11:37 amABE Allentown-Bethlehem-DEN Denver Intl

7h 37m1 stop Chicago O'Hare Intl

$568American Airlines

Fri, Oct 2 - Tue, Oct 6

1:25 pm - 9:00 pmDEN Denver Intl-ABE Allentown-Bethlehem

5h 35m1 stop Chicago O'Hare Intl

10:37 am - 2:32 pmABE Allentown-Bethlehem-DEN Denver Intl

5h 55m1 stop Chicago O'Hare Intl

$1,044United Airlines

Thu, Oct 1 - Sat, Oct 3

10:10 am - 9:00 pmDEN Denver Intl-ABE Allentown-Bethlehem

8h 50m2 stops Cedar Rapids Chicago O'Hare Intl

6:20 am - 2:42 pmABE Allentown-Bethlehem-DEN Denver Intl

10h 22m2 stops Chicago O'Hare Intl Joplin

$1,286United Airlines

Wed, Sep 30 - Mon, Oct 5

7:40 am - 5:02 pmDEN Denver Intl-ABE Allentown-Bethlehem

7h 22m2 stops Springfield-Branson Chicago O'Hare Intl

10:37 am - 4:11 pmABE Allentown-Bethlehem-DEN Denver Intl

7h 34m2 stops Chicago O'Hare Intl Madison Truax Field

$1,513United Airlines

Thu, Oct 1 - Sat, Oct 3

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American Airlines flights from Denver to Allentown

Our best American Airlines deals on Denver to Allentown flight tickets

American Airlines

Oct 17

DEN8:00 amDenver Intl

8h 14m

1 stop

ABE6:14 pmAllentown-Bethlehem

Oct 24

ABE6:10 amAllentown-Bethlehem

9h 19m

1 stop

DEN1:29 pmDenver Intl

$341

American Airlines

Oct 17

DEN1:20 pmDenver Intl

9h 08m

2 stops

ABE12:28 amAllentown-Bethlehem

Oct 24

ABE6:00 amAllentown-Bethlehem

7h 37m

1 stop

DEN11:37 amDenver Intl

$346

American Airlines

Oct 16

DEN2:19 pmDenver Intl

8h 09m

1 stop

ABE12:28 amAllentown-Bethlehem

Oct 19

ABE6:44 pmAllentown-Bethlehem

6h 08m

1 stop

DEN10:52 pmDenver Intl

$351

Allegiant Air flights from Denver to Allentown

Our best Allegiant Air deals on Denver to Allentown flight tickets

Allegiant Air

Oct 2

DEN10:14 amDenver Intl

3h 28m

ABE3:42 pmAllentown-Bethlehem

Oct 5

ABE6:30 amAllentown-Bethlehem

3h 54m

DEN8:24 amDenver Intl

$298

Allegiant Air

Oct 16

DEN10:14 amDenver Intl

3h 28m

ABE3:42 pmAllentown-Bethlehem

Oct 19

ABE7:30 amAllentown-Bethlehem

3h 54m

DEN9:24 amDenver Intl

$353

Allegiant Air

Oct 9

DEN10:14 amDenver Intl

3h 28m

ABE3:42 pmAllentown-Bethlehem

Oct 12

ABE7:30 amAllentown-Bethlehem

3h 54m

DEN9:24 amDenver Intl

$392

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Sat 10/17

8:00 am-6:14 pm

1 stop8h 14m

Allentown-Bethlehem

Sat 10/24

6:10 am-1:29 pm

1 stop9h 19m

$341

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Wed 10/21

2:29 pm-10:12 pm

1 stop5h 43m

Allentown-Bethlehem

Mon 10/26

5:14 pm-10:58 pm

1 stop7h 44m

$341

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Sat 10/17

1:20 pm-12:28 am

2 stops9h 08m

Allentown-Bethlehem

Sat 10/24

6:00 am-11:37 am

1 stop7h 37m

$346

Quickest round-trip

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Fri 10/16

10:14 am-3:42 pm

Nonstop3h 28m

Allentown-Bethlehem

Mon 10/19

7:30 am-9:24 am

Nonstop3h 54m

$353

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Fri 10/23

10:40 am-10:28 pm

1 stop9h 48m

Allentown-Bethlehem

Mon 10/26

7:57 pm-8:22 am

2 stops38h 25m

$357

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Wed 10/21

10:38 am-10:44 am

1 stop22h 06m

Allentown-Bethlehem

Mon 10/26

4:32 pm-8:20 am

2 stops41h 48m

$376

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Fri 10/9

10:14 am-3:42 pm

Nonstop3h 28m

Allentown-Bethlehem

Mon 10/12

7:30 am-9:24 am

Nonstop3h 54m

$392

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Fri 10/16

10:14 am-3:42 pm

Nonstop3h 28m

Allentown-Bethlehem

Mon 10/19

7:30 am-9:24 am

Nonstop3h 54m

$398

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Sat 10/17

8:51 am-5:02 pm

1 stop6h 11m

Allentown-Bethlehem

Sat 10/24

6:20 am-12:45 pm

1 stop8h 25m

$499

DenverAllentown

DEN Denver Intl - ABE Allentown-Bethlehem

DENABE

Denver Intl

Mon 10/26

5:25 pm-9:02 pm

2 stops25h 37m

Allentown-Bethlehem

Fri 10/30

5:36 pm-10:44 pm

1 stop7h 08m

$657

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 Denver 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

What is the typical price of a round-trip flight between Denver and Allentown?

Prices are currently typical for flights on this route.

Typical prices usually range from $171 to $340.
The lowest price recently found on this route was $298.

What is the cheapest month to fly to Allentown?

The month of September is, on average, the cheapest month to fly to Allentown from Denver, with most prices found around $255. If you aren’t able to travel to Allentown during the month of September, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $270.

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

The cheapest day to depart from Denver to Allentown is on a Friday when prices can be found for as low as $190. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Monday is $289.

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

In the afternoon is the cheapest time of day to fly from Denver to Allentown when you can find flight prices for as low as $188. Flying to Allentown in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $259.

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

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

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

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

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

How have Denver to Allentown flight prices changed over time?

When to book flights from Denver to Allentown

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

Estimated round-trip price

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

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

Best Price Found	$170
Fastest flight time	3h 28m
Direct flights	Tue and Sat
Airports in Allentown	1 airport

The best one-way flight to Allentown from Denver in the past 72 hours is $170. The best round-trip flight deal from Denver to Allentown found on momondo in the last 72 hours is $341.

The fastest flight from Denver to Allentown takes 3h 28m

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

There is 1 airport in Allentown. From Denver there are direct flights to Allentown-Bethlehem (ABE).

Search flight deals

Frequently asked questions about flying from Denver to Allentown

How far is Denver Intl to Allentown-Bethlehem by plane?
The straight-line distance from Denver Intl to Allentown-Bethlehem is 1551.0 mi. Typically, this will take 3h 28m by plane in normal conditions.
When did momondo last update prices for flights from Denver Intl Airport to Allentown-Bethlehem Airport?
Prices for flights from Denver Intl Airport to Allentown-Bethlehem Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Allentown-Bethlehem Airport?
The number of operators available for flights from Denver Intl Airport to Allentown-Bethlehem Airport is 3 as of September 2026.
How old do you have to be to fly from Denver Intl Airport to Allentown-Bethlehem 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 Denver Intl Airport to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The travel and health documents you'll need for your trip to Allentown-Bethlehem 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 Allentown-Bethlehem 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 Denver to Allentown?
Based on momondo bookings for flights between Denver and Allentown, the leading plane model is Boeing 737 MAX 8, making up 30.56% of the total bookings. Other popular models include Airbus A320-100/200 with 19.44%, Boeing 737-800 with 15.28%, and Airbus A321neo with 9.72%.
What is the most popular airline from Denver to Allentown?
momondo data reveals that the most frequently booked airline on the route from Denver to Allentown is Allegiant Air, representing 47% of all bookings. The subsequent popular airlines are American Airlines at 40% and United Airlines at 12%.

Best airlines flying from Denver to Allentown

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $124	Free Cancellation	Rating 7.3 678 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $188	Free Cancellation	Rating 7.4 10,247 reviews	Search United Airlines flights
American Airlines	PriceFrom $220	Free Cancellation	Rating 7.0 12,096 reviews	Search American Airlines flights

Lehighton

Why use momondo?

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

Finding the right flight to Allentown from Denver is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Allentown quick and easy, saving you time and money.

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

All flight searches from Denver to Allentown on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to Allentown.

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

Yes momondo offers price alerts on flights to Allentown from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.