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Allentown

$90+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ABE
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Colorado to Allentown

Keep the following information in mind while searching for Colorado to Allentown flight deals. Data was last updated September 16, 2025.

Round-trip from

$161
(Cheapflightsfares)

One-way from

$90
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$248

Good round-trip deal

$167 or less

Good one-way deal

$67 or less
From Colorado to Allentown-Bethlehem
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One-way flight from Colorado to Allentown-Bethlehem
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Highest demand for flights based on searches. 23% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Colorado to Allentown-Bethlehem.
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Price to beat on a one-way flight from Colorado to Allentown-Bethlehem.
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Find 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 September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:15 amDEN - ABE
Nonstop3h 27mAllegiant Air
Sun 10/267:30 amABE - DEN
Nonstop3h 55mAllegiant Air
Deal found 9/14$161
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/181:52 pmDEN - ABE
1 stop6h 48mAmerican Airlines
Sat 10/251:56 pmABE - DEN
1 stop8h 12mAmerican Airlines
Deal found 9/14$179
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 11/15:45 amDEN - ABE
2 stops9h 38mAmerican Airlines
Tue 11/41:46 pmABE - DEN
2 stops10h 36mAmerican Airlines
Deal found 9/14$189
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/2212:36 amDEN - ABE
1 stop19h 39mMultiple Airlines
Sun 10/267:30 amABE - DEN
Nonstop3h 55mMultiple Airlines
Deal found 9/14$190
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/2510:35 amDEN - ABE
Nonstop3h 30mAllegiant Air
Sun 9/288:00 amABE - DEN
Nonstop3h 45mAllegiant Air
Deal found 9/15$195
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/158:21 pmDEN - ABE
1 stop13h 03mMultiple Airlines
Sun 10/197:30 amABE - DEN
Nonstop3h 55mMultiple Airlines
Deal found 9/14$196
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/2110:35 amDEN - ABE
Nonstop3h 30mAllegiant Air
Sun 9/288:00 amABE - DEN
Nonstop3h 45mAllegiant Air
Deal found 9/14$200
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/257:08 amDEN - ABE
1 stop8h 15mAmerican Airlines
Fri 10/312:43 pmABE - DEN
1 stop6h 51mAmerican Airlines
Deal found 9/16$204
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/2810:37 amCOS - ABE
2 stops9h 03mAmerican Airlines
Sat 11/11:56 pmABE - COS
2 stops10h 13mAmerican Airlines
Deal found 9/16$324
This Delta deal was found by Cheapflights users on 9/16. 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 10/281:16 pmCOS - ABE
1 stop6h 59mDelta
Sat 11/112:46 pmABE - COS
1 stop7h 25mDelta
Deal found 9/16$374
This American Airlines deal was found by Cheapflights users on 9/14. 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 12/1010:38 amGJT - ABE
2 stops10h 20mAmerican Airlines
Sat 12/136:10 amABE - GJT
2 stops11h 52mAmerican Airlines
Deal found 9/14$434
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/283:35 pmCOS - ABE
2 stops23h 12mUnited Airlines
Sat 11/15:22 pmABE - COS
1 stop6h 25mUnited Airlines
Deal found 9/16$608

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 September 16, 2025.
Use the filters below to find and compare flights from Colorado to Allentown that are best for you.

Fly from

Colorado

Fly to

Allentown

Route

Depart

Return

Price

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Mon 10/20

2:47 pm-2:34 pm

2 stops21h 47m

Allentown-Bethlehem

Sun 10/26

7:30 am-9:25 am

Nonstop3h 55m

$222

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 1/20

9:40 am-5:13 pm

1 stop5h 33m

Allentown-Bethlehem

Tue 1/27

5:40 pm-11:54 pm

1 stop8h 14m

$257

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 10/24

12:50 pm-10:15 pm

1 stop7h 25m

Allentown-Bethlehem

Tue 10/28

12:46 pm-5:49 pm

1 stop7h 03m

$258

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 10/24

12:50 pm-10:15 pm

1 stop7h 25m

Allentown-Bethlehem

Mon 10/27

6:00 pm-11:59 pm

1 stop7h 59m

$259

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 1/22

12:00 pm-10:52 pm

1 stop8h 52m

Allentown-Bethlehem

Wed 1/28

1:00 pm-8:30 pm

1 stop9h 30m

$273

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Wed 2/18

7:15 am-4:18 pm

1 stop7h 03m

Allentown-Bethlehem

Sat 2/21

1:43 pm-11:38 pm

2 stops11h 55m

$274

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 1/22

9:40 am-5:13 pm

1 stop5h 33m

Allentown-Bethlehem

Sun 1/25

5:40 pm-11:54 pm

1 stop8h 14m

$289

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Tue 10/28

10:37 am-9:40 pm

2 stops9h 03m

Allentown-Bethlehem

Sat 11/1

1:56 pm-10:09 pm

2 stops10h 13m

$324

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 10/30

11:03 am-9:40 pm

1 stop8h 37m

Allentown-Bethlehem

Sun 11/2

5:10 pm-11:20 pm

1 stop8h 10m

$334

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 11/1

12:16 am-2:43 pm

1 stop13h 27m

Allentown-Bethlehem

Fri 11/7

6:00 am-9:38 pm

2 stops17h 38m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 45 results
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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, February is the cheapest month in which you can book a flight from Colorado to Allentown (average of $289). Flying from Colorado to Allentown in December is currently the most expensive (average of $383). 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 September 16, 2025.

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.

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 American Airlines fly from Colorado to Allentown in about 5h 33m. The time it takes to get you to your destination can typically vary by up to 3h 30m. Airlines will cover a distance of 1534 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $121 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $215 and $260, respectively.

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

    While some choose either Grand Junction Regnl - 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 $148, our data indicates the cheapest price to be $53. The most popular route (Denver Intl - Allentown-Bethlehem), is priced around $195.

  • 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, February is the cheapest month in which you can book a flight from Colorado to Allentown (average of $289). Flying from Colorado to Allentown in December is currently the most expensive (average of $383). 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

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Top 4 airlines flying from Colorado to Allentown

Discover the top 4 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$110Average$198FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$160Average$380FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$163Average$468FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$448FlexibilityNo cancel feeOn-timeN/A

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