$53+ Cheap flights from Allentown to Denver (ABE - DEN)
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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — DEN
May 27 — Jun 31
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 September or October, booked 66 days in advance, depart on a Tuesday or Friday 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 April 27, 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 April 27, 2026.
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/252:50 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Fri 5/295:42 pm
DEN
- ABE
Nonstop3h 22m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 8/172:54 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Fri 8/219:42 am
DEN
- ABE
Nonstop3h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 8/142:54 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Fri 8/219:42 am
DEN
- ABE
Nonstop3h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 8/172:54 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Mon 8/249:42 am
DEN
- ABE
Nonstop3h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 8/142:54 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Mon 8/249:42 am
DEN
- ABE
Nonstop3h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$154
This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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.
Fri 8/217:00 am
ABE
- DEN
Nonstop3h 52m
Allegiant Air
Fri 8/289:42 am
DEN
- ABE
Nonstop3h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$159
This Cheapflightsfares deal was found by Cheapflights users on 4/25. 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.
Fri 8/142:54 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Mon 8/175:46 pm
DEN
- ABE
Nonstop3h 28m
Allegiant Air
Deal found 4/25![Allegiant Air logo]()
$165
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 April 27, 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 April 27, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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 6/56:15 pm
ABE
- DEN
1 stop8h 18m
Delta
Mon 6/87:15 am
DEN
- ABE
1 stop8h 15m
Delta
Deal found 4/26![Delta logo]()
$385
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:41 pm
ABE
- DEN
1 stop8h 08m
United Airlines
Sat 7/256:00 am
DEN
- ABE
1 stop5h 48m
United Airlines
Deal found 4/21![United Airlines logo]()
$548
This Delta deal was found by Cheapflights users on 4/24. 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 5/256:15 pm
ABE
- DEN
1 stop8h 18m
Delta
Fri 5/297:05 am
DEN
- ABE
1 stop8h 23m
Delta
Deal found 4/24![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 4/24. 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.
Sat 6/206:09 pm
ABE
- DEN
1 stop6h 57m
Delta
Wed 6/241:15 pm
DEN
- ABE
1 stop7h 15m
Delta
Deal found 4/24![Delta logo]()
$442
This Delta deal was found by Cheapflights users on 4/25. 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.
Sat 5/301:04 pm
ABE
- DEN
1 stop6h 53m
Delta
Tue 6/212:25 pm
DEN
- ABE
1 stop7h 53m
Delta
Deal found 4/25![Delta logo]()
$442
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:36 pm
ABE
- DEN
1 stop7h 58m
United Airlines
Mon 9/148:54 pm
DEN
- ABE
2 stops14h 48m
United Airlines
Deal found 4/21![United Airlines logo]()
$577
This Delta deal was found by Cheapflights users on 4/23. 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 7/296:20 am
ABE
- DEN
2 stops15h 36m
Delta
Wed 8/52:10 pm
DEN
- ABE
1 stop6h 17m
Delta
Deal found 4/23![Delta logo]()
$485
This Delta deal was found by Cheapflights users on 4/22. 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 6/166:09 pm
ABE
- DEN
1 stop8h 25m
Delta
Tue 6/232:15 pm
DEN
- ABE
1 stop6h 15m
Delta
Deal found 4/22![Delta logo]()
$499
This Delta deal was found by Cheapflights users on 4/22. 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 6/176:20 am
ABE
- DEN
1 stop6h 47m
Delta
Wed 6/241:15 pm
DEN
- ABE
1 stop7h 15m
Delta
Deal found 4/22![Delta logo]()
$524
This Delta deal was found by Cheapflights users on 4/23. 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.
Sat 8/16:05 pm
ABE
- DEN
2 stops16h 01m
Delta
Mon 8/36:00 am
DEN
- ABE
2 stops14h 27m
Delta
Deal found 4/23![Delta logo]()
$586
Last-minute flights from Allentown to DenverDiscover last-minute flight deals from Allentown to Denver. Data last updated April 27, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to Denver. Data last updated April 27, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/222:50 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Mon 5/255:42 pm
DEN
- ABE
Nonstop3h 22m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sun 5/246:00 am
ABE
- DEN
2 stops20h 31m
Multiple Airlines
Fri 5/295:42 pm
DEN
- ABE
Nonstop3h 22m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$217
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/252:50 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Fri 5/295:42 pm
DEN
- ABE
Nonstop3h 22m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$127
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 April 27, 2026.
Search for one-way flight options from Allentown to Denver. Find affordable one-way fares based on user searches. Data last updated April 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/12:50 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$53
This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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 8/172:54 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$60
This Cheapflightsfares deal was found by Cheapflights users on 4/22. 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 5/252:50 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$67
This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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.
Fri 8/217:00 am
ABE
- DEN
Nonstop3h 52m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 7/137:30 am
ABE
- DEN
Nonstop4h 00m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/292:50 pm
ABE
- DEN
Nonstop4h 02m
Allegiant Air
Deal found 4/22![Allegiant Air logo]()
$121
This Delta deal was found by Cheapflights users on 4/22. 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 5/296:15 pm
ABE
- DEN
1 stop8h 18m
Delta
Deal found 4/22![Delta logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/181:41 pm
ABE
- DEN
2 stops28h 24m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$153
This Delta deal was found by Cheapflights users on 4/23. 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 6/26:15 pm
ABE
- DEN
1 stop6h 24m
Delta
Deal found 4/23![Delta logo]()
$157
This Delta deal was found by Cheapflights users on 4/24. 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.
Sat 5/166:15 pm
ABE
- DEN
1 stop8h 18m
Delta
Deal found 4/24![Delta logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/17:30 am
ABE
- DEN
2 stops27h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/293:32 pm
ABE
- DEN
2 stops26h 18m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$172
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 April 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Trip.com) |
One-way from | $53 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $388 |
Good round-trip deal | $195 or less |
Good one-way deal | $189 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 2,558,603 searches. Data last updated April 27, 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 - DEN
ABEDEN
Allentown-Bethlehem
Fri 6/5
6:15 pm-12:33 am
1 stop8h 18m
Denver Intl
Mon 6/8
7:15 am-5:30 pm
1 stop8h 15m
$385
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Mon 5/25
6:15 pm-12:33 am
1 stop8h 18m
Denver Intl
Fri 5/29
7:05 am-5:28 pm
1 stop8h 23m
$393
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Sat 6/20
6:09 pm-11:06 pm
1 stop6h 57m
Denver Intl
Wed 6/24
1:15 pm-10:30 pm
1 stop7h 15m
$442
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Sat 5/30
1:04 pm-5:57 pm
1 stop6h 53m
Denver Intl
Tue 6/2
12:25 pm-10:18 pm
1 stop7h 53m
$442
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Wed 7/29
6:20 am-7:56 pm
2 stops15h 36m
Denver Intl
Wed 8/5
2:10 pm-10:27 pm
1 stop6h 17m
$485
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Tue 6/16
6:09 pm-12:34 am
1 stop8h 25m
Denver Intl
Tue 6/23
2:15 pm-10:30 pm
1 stop6h 15m
$499
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Wed 6/17
6:20 am-11:07 am
1 stop6h 47m
Denver Intl
Wed 6/24
1:15 pm-10:30 pm
1 stop7h 15m
$524
Quickest round-trip
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Tue 7/21
5:41 pm-11:49 pm
1 stop8h 08m
Denver Intl
Sat 7/25
6:00 am-1:48 pm
1 stop5h 48m
$548
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Fri 9/11
5:36 pm-11:34 pm
1 stop7h 58m
Denver Intl
Mon 9/14
8:54 pm-1:42 pm
2 stops14h 48m
$577
AllentownDenver
ABE - DEN
ABEDEN
Allentown-Bethlehem
Sat 8/1
6:05 pm-8:06 am
2 stops16h 01m
Denver Intl
Mon 8/3
6:00 am-10:27 pm
2 stops14h 27m
$586
Showing 1-10 of 20 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 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 65 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, September is the cheapest month in which you can book a flight from Allentown to Denver (average of $207). Flying from Allentown to Denver in March is currently the most expensive (average of $539). 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 Allentown to Denver?
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 April 27, 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
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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
Black Hawk
Lakewood
Westminster
Broomfield
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Fort Morgan
Glendale
Evergreen
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 27, 2026.
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Allentown and Denver flights
Browse other Allentown and Denver flight options. Last updated on April 27, 2026.
Other flights from Allentown
Browse through other flights departing from Allentown. Flights are based on user searches made on Cheapflights and were last updated on April 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated April 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$218 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$177 | Average$433 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$336 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$256 | Average$359 | FlexibilityNo cancel fee | On-timeN/A |