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Allentown

$119+ 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.
DEN — ABE
janv. 3 — janv. 101
sam. 1/3
sam. 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Allentown-Bethlehem are usually found in October or September, booked 14 days in advance, depart on a Monday or Tuesday and return on a Thursday

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 décembre 4, 2025.

This Delta deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/1312:10 pmDEN - ABE
1 stop8h 01mDelta
mar. 1/65:59 pmABE - DEN
1 stop6h 56mDelta
Deal found 12/3$332
This Delta deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/105:45 amDEN - ABE
1 stop8h 53mDelta
mar. 1/65:59 pmABE - DEN
1 stop6h 56mDelta
Deal found 12/3$352
This Delta deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/97:00 amDEN - ABE
1 stop8h 14mDelta
mar. 1/612:50 pmABE - DEN
1 stop8h 38mDelta
Deal found 12/2$359
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/910:21 amDEN - ABE
2 stops10h 37mAmerican Airlines
mar. 1/61:02 pmABE - DEN
1 stop6h 40mAmerican Airlines
Deal found 12/2$373
This American Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 12/139:11 amDEN - ABE
2 stops11h 55mAmerican Airlines
mar. 1/61:02 pmABE - DEN
1 stop6h 40mAmerican Airlines
Deal found 12/3$393
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/1711:59 pmDEN - ABE
1 stop18h 37mMultiple Airlines
dim. 12/217:30 amABE - DEN
2 stops16h 30mMultiple Airlines
Deal found 12/2$404
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/109:11 amDEN - ABE
2 stops11h 47mAmerican Airlines
mar. 1/61:02 pmABE - DEN
1 stop6h 40mAmerican Airlines
Deal found 12/2$408
This Delta deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/1711:34 amDEN - ABE
1 stop8h 37mDelta
dim. 12/216:04 pmABE - DEN
1 stop7h 59mDelta
Deal found 12/2$419
This Kiwi.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/1711:59 pmDEN - ABE
1 stop13h 39mMultiple Airlines
lun. 12/2212:46 pmABE - DEN
2 stops35h 03mMultiple Airlines
Deal found 12/3$426
This American Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/176:21 amDEN - ABE
1 stop7h 32mAmerican Airlines
lun. 12/225:15 pmABE - DEN
1 stop7h 16mAmerican Airlines
Deal found 12/3$446
This deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/107:50 amDEN - ABE
1 stop6h 57mUnited Airlines
mar. 1/64:57 pmABE - DEN
1 stop7h 02mUnited Airlines
Deal found 12/3$523
This Kiwi.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/199:07 pmDEN - ABE
2 stops19h 41mMultiple Airlines
dim. 12/212:37 pmABE - DEN
1 stop10h 27mMultiple Airlines
Deal found 12/2$529

Find flight deals from Denver to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Allentown (ABE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated décembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(Delta)

One-way from

$119
(Delta)

Popular in

December

Cheapest in

October

Average price

$500

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. 29% potential increase in price ($130 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

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Allentown that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated décembre 4, 2025.
Use the filters below to find and compare flights from Denver to Allentown that are best for you.

Fly from

Denver

Fly to

Allentown

Route

Depart

Return

Price

DenverAllentown

DEN - ABE

DENABE

Denver Intl

sam. 2/14

2:45 pm-10:45 pm

1 stop6h 00m

Allentown-Bethlehem

mer. 2/18

5:58 pm-12:25 am

1 stop8h 27m

$259

DenverAllentown

DEN - ABE

DENABE

Denver Intl

ven. 2/13

7:05 am-5:16 pm

1 stop8h 11m

Allentown-Bethlehem

mar. 2/17

5:58 pm-10:48 pm

1 stop6h 50m

$274

DenverAllentown

DEN - ABE

DENABE

Denver Intl

ven. 2/13

7:05 am-5:16 pm

1 stop8h 11m

Allentown-Bethlehem

mer. 2/18

5:58 pm-10:48 pm

1 stop6h 50m

$274

DenverAllentown

DEN - ABE

DENABE

Denver Intl

jeu. 1/8

1:15 pm-10:50 pm

1 stop7h 35m

Allentown-Bethlehem

lun. 1/12

5:59 pm-10:55 pm

1 stop6h 56m

$289

DenverAllentown

DEN - ABE

DENABE

Denver Intl

mer. 2/11

1:16 pm-10:50 pm

1 stop7h 34m

Allentown-Bethlehem

lun. 2/16

5:58 pm-12:25 am

1 stop8h 27m

$304

DenverAllentown

DEN - ABE

DENABE

Denver Intl

mar. 2/10

1:16 pm-10:50 pm

1 stop7h 34m

Allentown-Bethlehem

lun. 2/16

5:58 pm-12:25 am

1 stop8h 27m

$304

DenverAllentown

DEN - ABE

DENABE

Denver Intl

mar. 2/10

7:15 am-10:50 pm

2 stops13h 35m

Allentown-Bethlehem

mer. 2/18

5:58 pm-10:48 pm

1 stop6h 50m

$307

DenverAllentown

DEN - ABE

DENABE

Denver Intl

dim. 1/11

11:59 pm-9:26 pm

1 stop19h 27m

Allentown-Bethlehem

jeu. 1/15

6:49 pm-8:07 pm

1 stop27h 18m

$309

DenverAllentown

DEN - ABE

DENABE

Denver Intl

ven. 2/13

7:05 am-5:16 pm

1 stop8h 11m

Allentown-Bethlehem

lun. 2/16

5:58 pm-12:25 am

1 stop8h 27m

$314

DenverAllentown

DEN - ABE

DENABE

Denver Intl

jeu. 1/8

7:50 am-4:22 pm

1 stop6h 32m

Allentown-Bethlehem

lun. 1/12

4:57 pm-9:59 pm

1 stop7h 02m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 22 results
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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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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

How far ahead should I book a flight from Denver to Allentown?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Allentown. Price data was last updated on November 28, 2025.

The price you pay for your flight from Denver to Allentown may vary depending on when you book. For the best chance of a lower fare, look to book 14 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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?

Find hourly flight availability from Denver to Allentown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated décembre 4, 2025.

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

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated décembre 4, 2025.
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
8,011 reviews

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

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.
United Airlines
7.4
Good
9,066 reviews
Delta
7.9
Good
8,011 reviews

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

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.
American Airlines
7.2
Good
11,047 reviews
Delta
7.9
Good
8,011 reviews

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

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.
Allegiant Air
7.2
Good
698 reviews
Delta
7.9
Good
8,011 reviews

Food

7.3

Overall

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Comfort

7.9

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.

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?

    There are many flights that can get you from Denver to Allentown in 6h. Fly via Delta to get the fastest option. The distance between Denver and Allentown is about 1534 mi.

  • 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 57% 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 $314.

  • 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

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Other flights to Allentown

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Top 4 airlines flying from Denver to Allentown

Discover the top 4 airlines that operate flights from Denver to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated décembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$136Average$200FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$160Average$393FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$163Average$468FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$488FlexibilityNo cancel feeOn-timeN/A

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