$155+ Cheap flights from Denver to Allentown (DEN - ABE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ABE
Dec 14 — Dec 211
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Denver to Allentown
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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 November 14, 2026.
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 November 14, 2026.
This Delta deal was found by Cheapflights users on 11/9. 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.
Thu 12/108:15 am -
1 stop6h 58m
Tue 12/155:58 pm -
1 stop7h 24m
Deal found 11/9![Delta logo]()
$314
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 12/105:17 am -
2 stops10h 25m
Tue 12/156:12 pm -
1 stop6h 45m
Deal found 11/9![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 12/112:31 pm -
1 stop5h 56m
Tue 12/155:58 pm -
1 stop7h 24m
Deal found 11/9![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 12/32:31 pm -
1 stop5h 56m
Tue 12/85:58 pm -
1 stop7h 24m
Deal found 11/12![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 11/13. 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.
Tue 12/17:15 am -
1 stop7h 58m
Tue 12/85:58 pm -
1 stop7h 24m
Deal found 11/13![Delta logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Mon 12/213:00 pm -
1 stop25h 57m
Thu 12/2412:48 pm -
1 stop6h 50m
Deal found 11/13![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 12/2411:00 am -
1 stop9h 43m
Tue 12/292:57 pm -
2 stops44h 52m
Deal found 11/11![Multiple Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 12/2411:00 am -
1 stop9h 43m
Wed 12/303:57 pm -
1 stop19h 52m
Deal found 11/11![Multiple Airlines logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 12/2411:00 am -
1 stop9h 43m
Thu 12/311:40 pm -
2 stops32h 50m
Deal found 11/11![Multiple Airlines logo]()
$485
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 11/122:17 pm -
1 stop8h 02m
Thu 12/36:12 pm -
1 stop8h 18m
Deal found 11/9![American Airlines logo]()
$488
Best flights from Denver to AllentownDiscover 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 November 14, 2026.
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 November 14, 2026.
This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 12/112:31 pm -
1 stop5h 56m
Tue 12/155:58 pm -
1 stop7h 24m
Deal found 11/9![Delta logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Mon 12/2111:30 pm -
2 stops17h 27m
Thu 12/2412:48 pm -
1 stop6h 50m
Deal found 11/13![Multiple Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Thu 1/2811:15 am -
1 stop7h 36m
Mon 2/15:20 pm -
1 stop6h 59m
Deal found 11/11![United Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 11/13. 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.
Thu 3/411:55 am -
1 stop8h 53m
Fri 3/56:09 pm -
1 stop7h 20m
Deal found 11/13![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 3/2512:00 pm -
1 stop8h 46m
Wed 3/316:30 am -
1 stop7h 24m
Deal found 11/12![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 11/9. 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.
Thu 1/711:55 am -
1 stop8h 44m
Fri 1/86:03 pm -
2 stops20h 12m
Deal found 11/9![Delta logo]()
$452
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Wed 12/911:15 am -
1 stop8h 07m
Sat 12/125:32 pm -
1 stop6h 27m
Deal found 11/10![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Wed 12/239:20 pm -
2 stops17h 30m
Thu 12/315:25 pm -
1 stop8h 28m
Deal found 11/11![United Airlines logo]()
$693
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 3/2512:00 pm -
1 stop8h 46m
Sun 3/285:40 pm -
2 stops18h 25m
Deal found 11/12![Delta logo]()
$592
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 12/197:40 am -
1 stop7h 10m
Thu 12/315:25 pm -
1 stop8h 28m
Deal found 11/11![United Airlines logo]()
$734
Last-minute flights from Denver to AllentownDiscover last-minute flight deals from Denver to Allentown. Data last updated November 14, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Allentown. Data last updated November 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 11/122:17 pm -
1 stop8h 02m
Thu 12/36:12 pm -
1 stop8h 18m
Deal found 11/9![American Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 11/13. 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.
Tue 12/17:15 am -
1 stop7h 58m
Tue 12/85:58 pm -
1 stop7h 24m
Deal found 11/13![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 11/12. 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.
Thu 12/37:15 am -
1 stop7h 58m
Wed 12/96:39 am -
1 stop7h 27m
Deal found 11/12![Delta logo]()
$419
This Delta deal was found by Cheapflights users on 11/9. 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.
Thu 12/108:15 am -
1 stop6h 58m
Tue 12/155:58 pm -
1 stop7h 24m
Deal found 11/9![Delta logo]()
$314
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 12/105:17 am -
2 stops10h 25m
Tue 12/156:12 pm -
1 stop6h 45m
Deal found 11/9![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 12/112:31 pm -
1 stop5h 56m
Tue 12/155:58 pm -
1 stop7h 24m
Deal found 11/9![Delta logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Mon 12/213:00 pm -
1 stop25h 57m
Thu 12/2412:48 pm -
1 stop6h 50m
Deal found 11/13![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 12/2411:00 am -
1 stop9h 43m
Tue 12/292:57 pm -
2 stops44h 52m
Deal found 11/11![Multiple Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 12/2411:00 am -
1 stop9h 43m
Wed 12/303:57 pm -
1 stop19h 52m
Deal found 11/11![Multiple Airlines logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 12/2411:00 am -
1 stop9h 43m
Thu 12/311:40 pm -
2 stops32h 50m
Deal found 11/11![Multiple Airlines logo]()
$485
One-way flights from Denver to AllentownSearch for one-way flight options from Denver to Allentown. Find affordable one-way fares based on user searches. Data last updated November 14, 2026.
Search for one-way flight options from Denver to Allentown. Find affordable one-way fares based on user searches. Data last updated November 14, 2026.
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/2912:54 am -
1 stop8h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![American Airlines logo]()
$155
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/158:06 am -
1 stop7h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![American Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Thu 12/1711:00 am -
1 stop9h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![Multiple Airlines logo]()
$163
This Delta deal was found by Cheapflights users on 11/10. 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.
Thu 12/37:15 am -
1 stop7h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Delta logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Thu 12/37:10 am -
3 stops34h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$175
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 1/1511:37 am -
2 stops9h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![American Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Fri 12/114:05 pm -
1 stop6h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![American Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Wed 12/1610:18 am -
2 stops26h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Wed 12/3011:30 pm -
2 stops21h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![Multiple Airlines logo]()
$216
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 November 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $314 (Delta) |
One-way from | $155 (American Airlines) |
Popular in | March |
Cheapest in | July |
Average price | $478 |
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 7,457,451 searches. Data last updated November 14, 2026.
Use the filters below to find and compare flights from Denver to Allentown that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Tue 12/15
8:06 am-5:42 pm
1 stop7h 36m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$160
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Thu 12/3
7:15 am-5:13 pm
1 stop7h 58m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$165
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Fri 1/15
11:37 am-11:28 pm
2 stops9h 51m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$180
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Wed 12/30
11:30 pm-10:43 pm
2 stops21h 13m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$216
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Wed 12/23
11:30 pm-10:43 pm
2 stops21h 13m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$234
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Sun 12/20
9:23 pm-8:37 pm
3 stops45h 14m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$253
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Wed 11/18
7:10 am-5:15 pm
1 stop8h 05m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$275
Quickest round-trip
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Tue 11/17
1:06 pm-10:27 pm
1 stop7h 21m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$275
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Fri 1/15
9:46 pm-9:58 pm
3 stops46h 12m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$278
DenverAllentown
DEN Denver Intl - ABE Allentown-Bethlehem
DENABE
Denver Intl
Fri 12/18
6:00 am-10:14 pm
2 stops14h 14m
Allentown-Bethlehem
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$278
Showing 1-10 of 21 resultsSorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
DEN-ABE
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, July is the cheapest month in which you can book a flight from Denver to Allentown (average of $270). Flying from Denver to Allentown in March is currently the most expensive (average of $767). 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.
How much does it cost to fly round-trip from Denver to Allentown?
Airfare is below average for this route at the moment.
Denver to Allentown flights typically cost between $447 and $614 in December.The cheapest round-trip price found within the last 5 days was $314 on Delta (Dec 10-Dec 15).
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 November 14, 2026.
Read through reviews of airlines operating flights from Denver to Allentown, such as Delta,United Airlines, andAllegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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Top 4 airlines flying from Denver to Allentown
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$124 | Average$259 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$217 | Average$518 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$488 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$302 | Average$441 | FlexibilityNo cancel fee | On-timeN/A |