How long is the flight from Denver to Allentown?

There are many flights that can get you from Denver to Allentown in 6h 32m. Fly via Delta or United Airlines to get the fastest option. The distance between Denver and Allentown is about 1534 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Denver to Allentown round-trip?

Allegiant Air, at $134, was found to be the cheapest airline from Denver to Allentown.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Users have found that Allegiant Air is 56% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

What are the cheapest flights from Denver to Allentown?

On average you can expect to pay $305 for a flight from Denver to Allentown. The cheapest flight overall is $288 while the most popular route, (Denver Intl - Allentown-Bethlehem) is currently priced at $269.

What are the most popular airlines that fly from Denver to Allentown?

When booking a flight from Denver to Allentown, you may want to consider flying on American Airlines, Allegiant Air or United Airlines as they are the most popular for this route.

Most accurate provider : When it comes to deals on Denver-Allentown flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Allentown flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Allentown flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Denver-Allentown flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Allentown flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Denver to Allentown that include hotel bookings?

Yes. In addition to deals on Denver to Allentown flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Denver to Allentown?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Allentown.

Can I find deals for business class flights from Denver to Allentown?

Yes. Cheapflights offers flight deals from Denver to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$114+ Flights from Denver to Allentown

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Cheap flight deals from Denver to Allentown

Cheapest flights from Denver to Allentown
Explore the most affordable flight options available from Denver to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Sun 12/288:07 amDEN - ABE

1 stop6h 26mAmerican Airlines

Wed 12/316:04 amABE - DEN

1 stop9h 15mAmerican Airlines

Deal found 12/26

$1,073

Sun 12/287:10 amDEN - ABE

2 stops13h 36mDelta

Wed 12/316:25 amABE - DEN

2 stops10h 48mDelta

Deal found 12/26

$1,677

Best flights from Denver to Allentown
Discover carefully curated flight deals from Denver to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Wed 1/141:18 pmDEN - ABE

1 stop7h 32mDelta

Sat 1/172:00 pmABE - DEN

1 stop9h 14mDelta

Deal found 12/26

$288

Thu 1/227:50 amDEN - ABE

1 stop6h 32mUnited Airlines

Sun 1/256:15 amABE - DEN

1 stop6h 20mUnited Airlines

Deal found 12/27

$309

Mon 2/98:30 amDEN - ABE

2 stops11h 56mAmerican Airlines

Sat 2/1412:01 pmABE - DEN

2 stops11h 25mAmerican Airlines

Deal found 12/27

$385

Thu 1/227:05 amDEN - ABE

1 stop8h 09mDelta

Sun 1/255:59 pmABE - DEN

1 stop8h 29mDelta

Deal found 12/26

$309

Sat 1/1012:00 pmDEN - ABE

1 stop8h 10mDelta

Sat 1/172:00 pmABE - DEN

1 stop9h 14mDelta

Deal found 12/27

$314

Wed 1/287:50 amDEN - ABE

1 stop6h 32mUnited Airlines

Sat 1/316:15 amABE - DEN

1 stop6h 20mUnited Airlines

Deal found 12/25

$389

Thu 2/261:10 pmDEN - ABE

1 stop7h 39mDelta

Mon 3/25:58 pmABE - DEN

1 stop8h 25mDelta

Deal found 12/25

$338

Fri 2/277:20 amDEN - ABE

1 stop7h 52mDelta

Mon 3/25:58 pmABE - DEN

1 stop8h 25mDelta

Deal found 12/25

$338

Mon 2/95:42 pmDEN - ABE

2 stops20h 40mUnited Airlines

Sat 2/142:55 pmABE - DEN

1 stop9h 10mUnited Airlines

Deal found 12/27

$414

Sat 1/173:15 pmDEN - ABE

1 stop17h 26mUnited Airlines

Tue 1/204:57 pmABE - DEN

1 stop7h 02mUnited Airlines

Deal found 12/26

$442

Last-minute flights from Denver to Allentown
Discover last-minute flight deals from Denver to Allentown. Data last updated December 28, 2025 and is based on user searches.

Sat 1/1012:00 pmDEN - ABE

1 stop8h 10mDelta

Sat 1/172:00 pmABE - DEN

1 stop9h 14mDelta

Deal found 12/27

$314

Tue 1/132:42 pmDEN - ABE

1 stop6h 08mDelta

Tue 1/205:59 pmABE - DEN

1 stop6h 51mDelta

Deal found 12/27

$473

Wed 1/142:58 pmDEN - ABE

2 stops28h 54mMultiple Airlines

Sat 1/177:49 pmABE - DEN

1 stop14h 31mMultiple Airlines

Deal found 12/26

$287

Wed 1/141:18 pmDEN - ABE

1 stop7h 32mDelta

Sat 1/172:00 pmABE - DEN

1 stop9h 14mDelta

Deal found 12/26

$288

Sat 1/173:15 pmDEN - ABE

1 stop17h 26mUnited Airlines

Tue 1/204:57 pmABE - DEN

1 stop7h 02mUnited Airlines

Deal found 12/26

$442

Thu 1/227:05 amDEN - ABE

1 stop8h 09mDelta

Sun 1/255:59 pmABE - DEN

1 stop8h 29mDelta

Deal found 12/26

$309

Thu 1/229:05 pmDEN - ABE

2 stops22h 56mMultiple Airlines

Sun 1/258:30 amABE - DEN

1 stop10h 57mMultiple Airlines

Deal found 12/27

$479

Wed 1/2812:00 pmDEN - ABE

1 stop8h 50mDelta

Sat 1/3112:50 pmABE - DEN

1 stop8h 38mDelta

Deal found 12/27

$269

Wed 1/286:32 pmDEN - ABE

1 stop18h 27mMultiple Airlines

Sat 1/315:59 pmABE - DEN

2 stops29h 48mMultiple Airlines

Deal found 12/26

$334

Wed 1/287:50 amDEN - ABE

1 stop6h 32mUnited Airlines

Sat 1/316:15 amABE - DEN

1 stop6h 20mUnited Airlines

Deal found 12/25

$389

One-way flights from Denver to Allentown
Search for one-way flight options from Denver to Allentown. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Sat 2/1410:20 amDEN - ABE

2 stops12h 10mAmerican Airlines

Deal found 12/27

$114

Find flight deals from Denver to Allentown

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$269 (Delta)
One-way from	$114 (American Airlines)
Popular in	December
Cheapest in	October
Average price	$488
Good round-trip deal	$289 or less

Provider with most accurate pricing for Denver Intl-Allentown-Bethlehem flight deals.

Search Deals

Provider most trusted by Cheapflights users for Denver Intl-Allentown-Bethlehem flights.

Search Deals

From Denver Intl to Allentown-Bethlehem

Search Deals

One-way flight from Denver Intl to Allentown-Bethlehem

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($89 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Denver Intl to Allentown-Bethlehem.

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 1/14

1:18 pm-10:50 pm

1 stop7h 32m

Allentown-Bethlehem

Sat 1/17

2:00 pm-9:14 pm

1 stop9h 14m

$288

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 1/22

7:50 am-4:22 pm

1 stop6h 32m

Allentown-Bethlehem

Sun 1/25

6:15 am-10:35 am

1 stop6h 20m

$309

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 1/22

7:05 am-5:14 pm

1 stop8h 09m

Allentown-Bethlehem

Sun 1/25

5:59 pm-12:28 am

1 stop8h 29m

$309

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 1/10

12:00 pm-10:10 pm

1 stop8h 10m

Allentown-Bethlehem

Sat 1/17

2:00 pm-9:14 pm

1 stop9h 14m

$314

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 2/26

1:10 pm-10:49 pm

1 stop7h 39m

Allentown-Bethlehem

Mon 3/2

5:58 pm-12:23 am

1 stop8h 25m

$338

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 2/27

7:20 am-5:12 pm

1 stop7h 52m

Allentown-Bethlehem

Mon 3/2

5:58 pm-12:23 am

1 stop8h 25m

$338

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Mon 2/9

8:30 am-10:26 pm

2 stops11h 56m

Allentown-Bethlehem

Sat 2/14

12:01 pm-9:26 pm

2 stops11h 25m

$385

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 1/28

7:50 am-4:22 pm

1 stop6h 32m

Allentown-Bethlehem

Sat 1/31

6:15 am-10:35 am

1 stop6h 20m

$389

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Mon 2/9

5:42 pm-4:22 pm

2 stops20h 40m

Allentown-Bethlehem

Sat 2/14

2:55 pm-10:05 pm

1 stop9h 10m

$414

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 1/17

3:15 pm-10:41 am

1 stop17h 26m

Allentown-Bethlehem

Tue 1/20

4:57 pm-9:59 pm

1 stop7h 02m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 11 results

Compare providers for flights from Denver to Allentown

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Allentown in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Denver-Allentown flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Allentown flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Allentown flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Denver-Allentown flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Allentown flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Denver with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Allentown

What is the cheapest month to book a flight from Denver to Allentown?

Currently, May is the cheapest month in which you can book a flight from Denver to Allentown (average of $62). Flying from Denver to Allentown in July is currently the most expensive (average of $175). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to ABE?

One of the essential ways to save on airfare from Denver to Allentown is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 56% on airfare.

Reviews of airlines servicing Allentown

Read through reviews of airlines operating flights from Denver to Allentown, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,019 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,113 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,072 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Allegiant Air

7.2

Good

703 reviews

Delta

7.9

Good

8,019 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Denver to Allentown?
There are many flights that can get you from Denver to Allentown in 6h 32m. Fly via Delta or United Airlines to get the fastest option. The distance between Denver and Allentown is about 1534 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Denver to Allentown round-trip?
Allegiant Air, at $134, was found to be the cheapest airline from Denver to Allentown.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Users have found that Allegiant Air is 56% cheaper than the other options available to this destination.
What are the cheapest flights from Denver to Allentown?
On average you can expect to pay $305 for a flight from Denver to Allentown. The cheapest flight overall is $288 while the most popular route, (Denver Intl - Allentown-Bethlehem) is currently priced at $269.
Can I find deals for flights from Denver to Allentown that include hotel bookings?
Yes. In addition to deals on Denver to Allentown flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Denver to Allentown?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Allentown.
Can I find deals for business class flights from Denver to Allentown?
Yes. Cheapflights offers flight deals from Denver to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Denver to Allentown?
Currently, May is the cheapest month in which you can book a flight from Denver to Allentown (average of $62). Flying from Denver to Allentown in July is currently the most expensive (average of $175). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Hayden to LaGuardia flights

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Complete your trip

Allentown car rentals

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Top 4 airlines flying from Denver to Allentown

Airline	Cheapest	Average	Flexibility	On-time
Allegiant Air	Cheapest$136	Average$200	FlexibilityNo cancel fee	On-time88%
American Airlines	Cheapest$160	Average$397	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$188	Average$468	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$256	Average$488	FlexibilityNo cancel fee	On-timeN/A

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$114+ Cheap flights from Denver to Allentown (DEN - ABE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Allentown with Cheapflights

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Cheap flight deals from Denver to Allentown

Cheapest flights from Denver to AllentownExplore the most affordable flight options available from Denver to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Explore the most affordable flight options available from Denver to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

Find flight deals from Denver to Allentown

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

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

Compare providers for flights from Denver to Allentown

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Allentown in December.

Best time to book a flight from Denver to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Denver with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Denver to Allentown

What is the cheapest month to book a flight from Denver to Allentown?

What is the cheapest time of day to fly from DEN to ABE?

Reviews of airlines servicing Allentown

Read through reviews of airlines operating flights from Denver to Allentown, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Denver to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Denver to Allentown?

What are the cheapest airlines flying from Denver to Allentown round-trip?

What are the cheapest flights from Denver to Allentown?

Can I find deals for flights from Denver to Allentown that include hotel bookings?

How can I find direct flights from Denver to Allentown?

Can I find deals for business class flights from Denver to Allentown?

What is the cheapest month to book a flight from Denver to Allentown?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Allentown

Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on December 28, 2025.

Top 4 airlines flying from Denver to Allentown

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Cheapest flights from Denver to Allentown
Explore the most affordable flight options available from Denver to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.