HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Allentown

$66+ Cheap flights from Colorado to Allentown (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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ABE
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado 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.

Cheap flight deals from Colorado to Allentown

Cheapest flights from Colorado to Allentown
Explore the most affordable flight options available from Colorado to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 9/119:36 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Mon 9/147:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Deal found 7/28$123
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 9/119:36 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Mon 9/217:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Deal found 7/25$136
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 9/410:06 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Mon 9/147:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Deal found 7/24$157
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/119:36 am
DEN
-
ABE
Nonstop3h 32m
Multiple Airlines
Mon 9/216:46 pm
ABE
-
DEN
1 stop24h 30m
Multiple Airlines
Deal found 7/27$165
This Super.com deal was found by Cheapflights users on 7/23. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:42 am
DEN
-
ABE
Nonstop3h 29m
Allegiant Air
Fri 8/287:00 am
ABE
-
DEN
Nonstop3h 52m
Allegiant Air
Deal found 7/23$166
This Super.com deal was found by Cheapflights users on 7/28. 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 8/289:42 am
DEN
-
ABE
Nonstop3h 29m
Allegiant Air
Mon 8/317:30 am
ABE
-
DEN
Nonstop3h 52m
Allegiant Air
Deal found 7/28$170
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/119:36 am
DEN
-
ABE
Nonstop3h 32m
Multiple Airlines
Sun 9/139:55 pm
ABE
-
DEN
1 stop21h 21m
Multiple Airlines
Deal found 7/28$171
This Booking.com deal was found by Cheapflights users on 7/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:14 am
DEN
-
ABE
Nonstop3h 28m
Allegiant Air
Mon 10/197:30 am
ABE
-
DEN
Nonstop3h 54m
Allegiant Air
Deal found 7/25$178
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 9/189:36 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Mon 9/217:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Deal found 7/28$191
This Super.com deal was found by Cheapflights users on 7/27. 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 8/105:46 pm
DEN
-
ABE
Nonstop3h 28m
Allegiant Air
Fri 8/142:54 pm
ABE
-
DEN
Nonstop4h 02m
Allegiant Air
Deal found 7/27$208
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:46 pm
COS
-
ABE
1 stop7h 26m
American Airlines
Wed 10/216:00 am
ABE
-
COS
1 stop8h 56m
American Airlines
Deal found 7/26$343
This Delta deal was found by Cheapflights users on 7/27. 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 9/41:20 pm
COS
-
ABE
1 stop7h 03m
Delta
Tue 9/812:56 pm
ABE
-
COS
1 stop9h 00m
Delta
Deal found 7/27$351

Find flight deals from Colorado to Allentown

Keep the following information in mind while searching for Colorado to Allentown flight deals. Data was last updated July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$123
(Cheapflightsfares)

One-way from

$66
(Flightnetwork)

Popular in

March

Cheapest in

October

Average price

$270

Good one-way deal

$190 or less
Provider with most accurate pricing for Denver Intl-Allentown-Bethlehem flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Allentown-Bethlehem flights.
Search Deals
From Colorado to Allentown-Bethlehem
Search Deals
One-way flight from Colorado to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Colorado to Allentown-Bethlehem.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 July 28, 2026.
Use the filters below to find and compare flights from Colorado to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 10/9

10:14 am-3:42 pm

Nonstop3h 28m

Allentown-Bethlehem

Sun 10/11

7:40 am-8:11 am

2 stops26h 31m

$291

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Fri 9/4

1:20 pm-10:23 pm

1 stop7h 03m

Allentown-Bethlehem

Tue 9/8

12:56 pm-7:56 pm

1 stop9h 00m

$351

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Thu 10/29

1:31 pm-10:29 pm

1 stop6h 58m

Allentown-Bethlehem

Sun 11/1

1:00 pm-8:16 pm

1 stop9h 16m

$365

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Wed 10/21

1:31 pm-10:29 pm

1 stop6h 58m

Allentown-Bethlehem

Fri 10/23

6:39 am-12:30 pm

1 stop7h 51m

$387

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Tue 9/1

11:27 am-10:23 pm

2 stops8h 56m

Allentown-Bethlehem

Tue 9/8

12:56 pm-7:56 pm

1 stop9h 00m

$435

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 8/7

5:46 pm-11:14 pm

Nonstop3h 28m

Allentown-Bethlehem

Mon 8/10

8:50 pm-6:30 am

3 stops59h 40m

$448

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Thu 9/24

1:25 pm-10:16 pm

1 stop6h 51m

Allentown-Bethlehem

Tue 9/29

6:25 am-5:31 pm

2 stops13h 06m

$473
Quickest round-trip

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Fri 9/4

11:55 am-9:00 pm

1 stop7h 05m

Allentown-Bethlehem

Tue 9/8

5:36 pm-9:54 pm

1 stop6h 18m

$479

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Wed 9/2

7:55 am-5:00 pm

1 stop7h 05m

Allentown-Bethlehem

Tue 9/8

5:36 pm-9:54 pm

1 stop6h 18m

$525

MontroseAllentown

MTJ - ABE

MTJABE

Montrose County

Wed 1/20

12:50 pm-9:12 pm

1 stop6h 22m

Allentown-Bethlehem

Sat 1/23

6:25 am-11:49 am

1 stop7h 24m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 34 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from Colorado to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Allentown

What is the cheapest month to book a flight from Colorado to Allentown?

Currently, October is the cheapest month in which you can book a flight from Colorado to Allentown (average of $188). Flying from Colorado 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.

What is the cheapest time of day to fly from CO to ABE?

Find hourly flight availability from Colorado 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 July 28, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Allentown as you normally would.

How much does it cost to fly round-trip from Colorado to Allentown?

Airfare is below average for this route at the moment.
Colorado to Allentown flights typically cost between $223 and $488 in September.
The cheapest round-trip price found within the last 5 days was $123 on Allegiant Air (Sep 11-Sep 14).

Related info for your journey

Find useful and relevant information for your journey from Colorado to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Allentown from Colorado?

    If you book a flight to Allentown from Colorado, you will be flying to Allentown-Bethlehem, which is the city’s only airport. Allentown-Bethlehem (ABE) is located 3.9 mi from the center of Allentown.

  • How long is the flight from Colorado to Allentown?

    Airlines like Delta and United Airlines fly from Colorado to Allentown in about 6h 22m. The time it takes to get you to your destination can typically vary by up to 41m. Airlines will cover a distance of 1724 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Colorado to Allentown?

    While some choose either Colorado Springs - Allentown-Bethlehem or Montrose County - Allentown-Bethlehem, Denver Intl - Allentown-Bethlehem is the most popular route from Colorado to Allentown.

  • What are the cheapest flights from Colorado to Allentown?

    Looking for the cheapest flight from Colorado to Allentown? While on average our users pay $197, our data indicates the cheapest price to be $189. The most popular route (Denver Intl - Allentown-Bethlehem), is priced around $144.

  • Can I find deals for flights from Colorado to Allentown that include hotel bookings?

    Yes. In addition to deals on Colorado to Allentown flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Allentown.

  • Can I find deals for business class flights from Colorado to Allentown?

    Yes. Cheapflights offers flight deals from Colorado 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 Colorado to Allentown?

    Currently, October is the cheapest month in which you can book a flight from Colorado to Allentown (average of $188). Flying from Colorado 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.

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.

Top 3 airlines flying from Colorado to Allentown

Discover the top 3 airlines that operate flights from Colorado 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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$124Average$204FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$178Average$460FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$188Average$518FlexibilityNo cancel feeOn-time69%

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.
Site
©2026 Cheapflights