$128+ Cheap flights from Allentown to Denver (ABE - DEN)
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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — DEN
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from Allentown to Denver 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.Cheapflights Tip: The best prices from Allentown-Bethlehem to Denver Intl are usually found in August or September, booked 74 days in advance, depart on a Thursday or Tuesday and return on a Wednesday
Cheap flight deals from Allentown to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Allentown to DenverExplore the most affordable flight options available from Allentown to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
Explore the most affordable flight options available from Allentown to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:30 am -
Nonstop3h 46m
Fri 10/210:14 am -
Nonstop3h 28m
Deal found 9/10![Allegiant Air logo]()
$211
This Cheapflightsfares deal was found by Cheapflights users on 9/6. 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.
Mon 9/78:00 am -
Nonstop3h 46m
Fri 9/119:36 am -
Nonstop3h 32m
Deal found 9/6![Allegiant Air logo]()
$243
This Jettzy deal was found by Cheapflights users on 9/10. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:30 am -
Nonstop3h 46m
Fri 9/259:36 am -
Nonstop3h 32m
Deal found 9/10![Allegiant Air logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/167:30 am -
Nonstop3h 54m
Tue 10/206:57 pm -
2 stops35h 36m
Deal found 9/8![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/56:30 am -
Nonstop3h 54m
Wed 10/712:24 pm -
2 stops23h 52m
Deal found 9/7![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:30 am -
Nonstop3h 54m
Mon 10/198:10 am -
2 stops12h 18m
Deal found 9/9![Multiple Airlines logo]()
$294
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:30 am -
Nonstop3h 54m
Mon 10/1910:14 am -
Nonstop3h 28m
Deal found 9/9![Allegiant Air logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/167:30 am -
Nonstop3h 54m
Wed 10/216:57 pm -
2 stops25h 15m
Deal found 9/8![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/56:30 am -
Nonstop3h 54m
Fri 10/910:14 am -
Nonstop3h 28m
Deal found 9/7![Allegiant Air logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:30 am -
Nonstop3h 54m
Wed 10/2110:40 am -
2 stops22h 04m
Deal found 9/9![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/56:30 am -
Nonstop3h 54m
Tue 10/67:12 pm -
2 stops36h 10m
Deal found 9/7![Multiple Airlines logo]()
$308
Best flights from Allentown to DenverDiscover carefully curated flight deals from Allentown to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Allentown to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:44 pm -
1 stop6h 09m
Mon 10/264:07 pm -
1 stop6h 21m
Deal found 9/10![American Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 9/7. 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.
Mon 10/266:03 pm -
1 stop7h 09m
Sat 10/312:36 pm -
1 stop5h 43m
Deal found 9/7![Delta logo]()
$447
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/275:36 pm -
1 stop6h 12m
Mon 11/27:45 am -
1 stop7h 11m
Deal found 9/10![United Airlines logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 11/67:34 pm -
2 stops28h 00m
Mon 11/910:40 am -
1 stop9h 59m
Deal found 9/8![Multiple Airlines logo]()
$609
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 11/46:39 am -
1 stop8h 33m
Fri 11/62:36 pm -
1 stop5h 43m
Deal found 9/10![Delta logo]()
$480
This Delta deal was found by Cheapflights users on 9/7. 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 10/206:03 pm -
1 stop6h 29m
Wed 10/217:00 am -
1 stop8h 16m
Deal found 9/7![Delta logo]()
$519
This Delta deal was found by Cheapflights users on 9/9. 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 9/256:04 pm -
2 stops18h 01m
Sat 10/107:00 am -
1 stop8h 16m
Deal found 9/9![Delta logo]()
$538
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Mon 10/55:43 pm -
1 stop8h 11m
Mon 10/127:10 pm -
1 stop12h 25m
Deal found 9/6![United Airlines logo]()
$710
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:03 pm -
1 stop6h 29m
Sun 11/87:00 am -
1 stop8h 16m
Deal found 9/11![Delta logo]()
$583
This United Airlines deal was found by Cheapflights users on 9/10. 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 1/205:20 pm -
2 stops18h 52m
Sun 1/248:40 pm -
2 stops22h 15m
Deal found 9/10![United Airlines logo]()
$713
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/296:15 am -
2 stops30h 13m
Tue 11/37:40 am -
2 stops11h 22m
Deal found 9/11![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/225:43 pm -
2 stops18h 47m
Tue 10/277:40 am -
2 stops11h 22m
Deal found 9/10![United Airlines logo]()
$761
Last-minute flights from Allentown to DenverDiscover last-minute flight deals from Allentown to Denver. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to Denver. Data last updated September 11, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:30 am -
Nonstop3h 46m
Fri 9/259:36 am -
Nonstop3h 32m
Deal found 9/6![Allegiant Air logo]()
$311
This Jettzy deal was found by Cheapflights users on 9/10. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:30 am -
Nonstop3h 46m
Fri 9/259:36 am -
Nonstop3h 32m
Deal found 9/10![Allegiant Air logo]()
$245
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:30 am -
Nonstop3h 46m
Fri 10/210:14 am -
Nonstop3h 28m
Deal found 9/10![Allegiant Air logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/56:30 am -
Nonstop3h 54m
Wed 10/712:24 pm -
2 stops23h 52m
Deal found 9/7![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:30 am -
Nonstop3h 54m
Mon 10/198:10 am -
2 stops12h 18m
Deal found 9/9![Multiple Airlines logo]()
$294
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:30 am -
Nonstop3h 54m
Mon 10/1910:14 am -
Nonstop3h 28m
Deal found 9/9![Allegiant Air logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/56:30 am -
Nonstop3h 54m
Fri 10/910:14 am -
Nonstop3h 28m
Deal found 9/7![Allegiant Air logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/56:30 am -
Nonstop3h 54m
Tue 10/67:12 pm -
2 stops36h 10m
Deal found 9/7![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/167:30 am -
Nonstop3h 54m
Tue 10/206:57 pm -
2 stops35h 36m
Deal found 9/8![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/167:30 am -
Nonstop3h 54m
Wed 10/216:57 pm -
2 stops25h 15m
Deal found 9/8![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:30 am -
Nonstop3h 54m
Wed 10/2110:40 am -
2 stops22h 04m
Deal found 9/9![Multiple Airlines logo]()
$307
One-way flights from Allentown to DenverSearch for one-way flight options from Allentown to Denver. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Allentown to Denver. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:30 am -
Nonstop3h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$128
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:30 am -
Nonstop3h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:32 pm -
2 stops41h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$150
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:15 pm -
1 stop6h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$171
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 11/56:15 pm -
1 stop6h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Mon 9/216:46 pm -
2 stops22h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$228
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 10/216:44 pm -
1 stop7h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$249
This deal was found by Cheapflights users on 9/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/92:00 pm -
1 stop8h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$250
Find flight deals from Allentown to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Denver (DEN). 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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $211 (Super.com) |
One-way from | $128 (CheapOair) |
Popular in | March |
Cheapest in | August |
Average price | $232 |
Good round-trip deal | $160 or less |
Good one-way deal | $65 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Allentown to Denver 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 September 11, 2026.
Use the filters below to find and compare flights from Allentown to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Mon 10/19
7:30 am-9:24 am
Nonstop3h 54m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$128
Quickest round-trip
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Mon 9/21
7:30 am-9:16 am
Nonstop3h 46m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$138
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Mon 10/19
4:32 pm-8:06 am
2 stops41h 34m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$150
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Wed 11/4
12:55 pm-10:20 pm
2 stops11h 25m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$176
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Thu 11/5
6:15 pm-10:54 pm
1 stop6h 39m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$214
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Wed 10/21
6:44 pm-12:36 am
1 stop7h 52m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$249
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Sat 1/9
2:00 pm-8:23 pm
1 stop8h 23m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$250
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Fri 1/15
6:16 pm-11:59 pm
1 stop7h 43m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$260
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Fri 1/8
6:16 pm-10:56 pm
1 stop6h 40m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$260
AllentownDenver
ABE Allentown-Bethlehem - DEN Denver Intl
ABEDEN
Allentown-Bethlehem
Wed 11/4
9:00 am-3:53 pm
3 stops32h 53m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$261
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Allentown to Denver
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 Allentown to Denver in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Allentown-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Allentown-Denver 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 Allentown-Denver 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 Allentown to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Allentown with our price prediction graph.
ABE-DEN
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 Allentown to Denver
How far ahead should I book a flight from Allentown to Denver?
Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Allentown to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Allentown to Denver?
Currently, August is the cheapest month in which you can book a flight from Allentown to Denver (average of $216). Flying from Allentown to Denver in March is currently the most expensive (average of $498). 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 ABE to DEN?
Find hourly flight availability from Allentown to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2026.
When flying from Allentown to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated September 11, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAllegiant Air from Allentown to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Overall
7.8
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Allentown to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Black Hawk
Broomfield
Golden
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Greeley
Cripple Creek
Winter Park
Limon
Frisco
Manitou Springs
Englewood
Glendale
Evergreen
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Other flights to Denver
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Allentown and Denver flights
Browse other Allentown and Denver flight options. Last updated on September 11, 2026.
Other flights from Allentown
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Top 4 airlines flying from Allentown to Denver
Discover the top 4 airlines that operate flights from Allentown to Denver. 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$146 | Average$261 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$177 | Average$488 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$188 | Average$459 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$252 | Average$378 | FlexibilityNo cancel fee | On-timeN/A |