HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Allentown

$86+ 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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ABE
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Allentown with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Denver Intl to Allentown-Bethlehem are usually found in October or August, booked 7 days in advance, depart on a Monday or Tuesday and return on a Sunday

Cheap 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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$196
(Cheapflightsfares)

One-way from

$86
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$279
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. 20% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find 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 February 22, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/59:51 amDEN - ABE
Nonstop3h 33mAllegiant Air
Sun 6/87:00 amABE - DEN
Nonstop4h 01mAllegiant Air
Deal found 2/19$196
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Tue 3/184:18 pmDEN - ABE
1 stop6h 03mAmerican Airlines
Mon 3/245:16 pmABE - DEN
1 stop7h 53mAmerican Airlines
Deal found 2/21$289
This Delta deal was found by Cheapflights users on 2/20. 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.
Wed 3/57:10 amDEN - ABE
1 stop7h 39mDelta
Sun 3/95:17 pmABE - DEN
1 stop7h 27mDelta
Deal found 2/20$384
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:47 amDEN - ABE
1 stop7h 11mUnited Airlines
Mon 2/245:33 pmABE - DEN
1 stop7h 57mUnited Airlines
Deal found 2/20$500
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2810:58 amDEN - ABE
2 stops33h 25mMultiple Airlines
Wed 3/52:51 pmABE - DEN
3 stops24h 39mMultiple Airlines
Deal found 2/20$506

Find flights from Denver to Allentown within your budget

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 February 22, 2025.

Fly from

Denver

Fly to

Allentown

Route

Depart

Return

Price

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 6/5

9:51 am-3:24 pm

Nonstop3h 33m

Allentown-Bethlehem

Sun 6/8

7:00 am-9:01 am

Nonstop4h 01m

$196

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 3/18

4:18 pm-12:21 am

1 stop6h 03m

Allentown-Bethlehem

Mon 3/24

5:16 pm-11:09 pm

1 stop7h 53m

$289

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 3/5

7:10 am-4:49 pm

1 stop7h 39m

Allentown-Bethlehem

Sun 3/9

5:17 pm-10:44 pm

1 stop7h 27m

$384

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 3/7

10:54 am-3:09 pm

2 stops26h 15m

Allentown-Bethlehem

Mon 3/10

2:48 pm-1:40 pm

3 stops24h 52m

$525

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 4/18

5:55 pm-9:25 pm

2 stops25h 30m

Allentown-Bethlehem

Mon 4/21

5:32 pm-11:10 pm

1 stop7h 38m

$581

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 5/22

9:51 am-3:13 pm

Nonstop3h 22m

$86

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 5/20

4:06 pm-12:41 am

1 stop6h 35m

$145

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 5/20

3:00 pm-11:25 pm

1 stop6h 25m

$240

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 3/5

9:04 pm-4:59 pm

2 stops17h 55m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Allentown flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Denver to Allentown

Get recent, data-driven insights about flights from Denver to Allentown including ideal travel times, pricing trends, and more.

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 February 14, 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 7 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, February is the cheapest month in which you can book a flight from Denver to Allentown (average of $293). Flying from Denver to Allentown in December is currently the most expensive (average of $395). 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 February 22, 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 afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 37% on airfare.

What is the cheapest day to fly from Denver to Allentown?

Use this chart to determine the cheapest time to fly round-trip from Denver to Allentown. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Denver to Allentown flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

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.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

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).

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 February 22, 2025.
See what other customers who have flown with Delta, United Airlines and Allegiant Air from Denver to Allentown have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,213 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,213 reviews
Delta
8.0
Very good
8,213 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,759 reviews
Delta
8.0
Very good
8,213 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Allegiant Air
7.3
Good
765 reviews
Delta
8.0
Very good
8,213 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,213 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Allegiant Air, at $196, was found to be the cheapest airline from Denver to Allentown.Alternate airlines to your destination round-trip include American Airlines and Delta. Users have found that Allegiant Air is 38% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Denver to Allentown one-way?

    One-way options have recently been found by users for as low as $86 on Allegiant Air. Other airlines that offer cheap prices include American Airlines from $145 and Delta from $240 one-way.

  • 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, February is the cheapest month in which you can book a flight from Denver to Allentown (average of $293). Flying from Denver to Allentown in December is currently the most expensive (average of $395). 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

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 February 22, 2025.
Orlando to Allentown flights
Melbourne to Allentown flights
Myrtle Beach to Allentown flights
Orlando Sanford Intl to Allentown flights
St Petersburg to Allentown flights
Punta Gorda to Allentown flights
Allentown to Myrtle Beach flights
Allentown to Fort Lauderdale flights
Allentown to Sarasota flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Orlando Airport flights
Allentown to Punta Gorda flights
Allentown to Tampa flights
Allentown to Melbourne, Florida flights
Allentown to Philadelphia flights
Allentown to Sarasota flights
Allentown to Fort Lauderdale flights
Allentown to Myrtle Beach flights
Allentown to Orlando Airport flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Nashville flights
Allentown to Tampa flights
Allentown to Charlotte flights
Allentown to Punta Gorda flights

Top 5 airlines flying from Denver to Allentown

Discover the top 5 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$150FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$92Average$217FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$203Average$400FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$366FlexibilityNo cancel feeOn-time71%
DeltaCheapest$272Average$488FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.