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Allentown

$109+ 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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ABE
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 12/276:00 amDEN - ABE
1 stop8h 30mUnited Airlines
Thu 1/16:17 amABE - DEN
1 stop6h 18mUnited Airlines
Deal found 12/11$369
This Delta deal was found by Cheapflights users on 12/11. 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.
Thu 12/181:16 pmDEN - ABE
1 stop6h 55mDelta
Sat 12/206:04 pmABE - DEN
1 stop7h 59mDelta
Deal found 12/11$449
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/266:00 amDEN - ABE
1 stop8h 30mUnited Airlines
Thu 1/16:17 amABE - DEN
1 stop6h 18mUnited Airlines
Deal found 12/10$513
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/1111:21 amDEN - ABE
1 stop8h 25mUnited Airlines
Tue 12/161:00 pmABE - DEN
1 stop9h 04mUnited Airlines
Deal found 12/10$519
This Delta deal was found by Cheapflights users on 12/10. 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.
Fri 12/121:16 pmDEN - ABE
1 stop6h 55mDelta
Sun 12/216:04 pmABE - DEN
1 stop7h 59mDelta
Deal found 12/10$524
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/306:00 amDEN - ABE
1 stop8h 30mUnited Airlines
Sat 1/36:17 amABE - DEN
1 stop6h 18mUnited Airlines
Deal found 12/10$530
This Delta deal was found by Cheapflights users on 12/10. 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.
Fri 12/121:16 pmDEN - ABE
1 stop6h 55mDelta
Thu 12/186:00 pmABE - DEN
1 stop6h 53mDelta
Deal found 12/10$559
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/266:00 amDEN - ABE
1 stop8h 30mUnited Airlines
Sat 1/36:17 amABE - DEN
1 stop8h 37mUnited Airlines
Deal found 12/10$570
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/147:50 amDEN - ABE
1 stop6h 57mUnited Airlines
Sun 12/212:30 pmABE - DEN
1 stop9h 36mUnited Airlines
Deal found 12/10$579
This American Airlines deal was found by Cheapflights users on 12/10. 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 12/267:07 amDEN - ABE
1 stop7h 26mAmerican Airlines
Wed 12/315:15 pmABE - DEN
1 stop7h 16mAmerican Airlines
Deal found 12/10$600
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/1812:11 pmCOS - ABE
1 stop7h 36mUnited Airlines
Sun 12/286:17 amABE - COS
1 stop17h 33mUnited Airlines
Deal found 12/11$952
This Delta deal was found by Cheapflights users on 12/10. 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.
Sun 12/141:42 pmCOS - ABE
1 stop6h 29mDelta
Wed 12/176:25 amABE - COS
1 stop8h 11mDelta
Deal found 12/10$987

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 December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$340
(Kiwi.com)

One-way from

$109
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$297

Good round-trip deal

$289 or less
Provider with most accurate pricing for Denver Intl-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-New York (NYC) flights.
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From Colorado to Allentown-Bethlehem
Search Deals
One-way flight from Colorado to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Colorado to Allentown-Bethlehem.
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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 December 12, 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

Sat 12/27

6:00 am-4:30 pm

1 stop8h 30m

Allentown-Bethlehem

Thu 1/1

6:17 am-10:35 am

1 stop6h 18m

$369

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 1/8

7:50 am-4:22 pm

1 stop6h 32m

Allentown-Bethlehem

Mon 1/12

4:57 pm-9:59 pm

1 stop7h 02m

$369

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Thu 1/8

11:59 pm-9:26 pm

1 stop19h 27m

Allentown-Bethlehem

Thu 1/15

8:30 am-11:07 pm

1 stop16h 37m

$387

MontroseAllentown

MTJ - ABE

MTJABE

Montrose County

Wed 1/14

1:05 pm-9:05 pm

1 stop6h 00m

Allentown-Bethlehem

Sun 1/18

6:15 am-12:30 pm

2 stops8h 15m

$443

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Mon 2/9

8:30 am-10:26 pm

2 stops11h 56m

Allentown-Bethlehem

Sat 2/14

12:01 pm-9:26 pm

2 stops11h 25m

$449

VailAllentown

EGE - ABE

EGEABE

Vail Eagle County

Fri 1/23

12:30 pm-9:05 pm

1 stop6h 35m

Allentown-Bethlehem

Tue 1/27

6:15 am-11:27 am

1 stop7h 12m

$449

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Mon 2/9

6:10 pm-9:05 pm

2 stops24h 55m

Allentown-Bethlehem

Sat 2/14

2:55 pm-7:48 pm

1 stop6h 53m

$450

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Sat 1/10

11:43 am-10:41 am

1 stop20h 58m

Allentown-Bethlehem

Tue 1/13

6:15 am-11:02 am

1 stop6h 47m

$489

Grand JunctionAllentown

GJT - ABE

GJTABE

Grand Junction Regnl

Wed 1/14

11:00 am-10:41 am

2 stops21h 41m

Allentown-Bethlehem

Sun 1/18

6:15 am-2:46 pm

2 stops10h 31m

$548

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Tue 2/17

1:22 pm-10:45 pm

1 stop7h 23m

Allentown-Bethlehem

Fri 2/20

6:28 am-12:25 pm

1 stop7h 57m

$674

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 22 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, May is the cheapest month in which you can book a flight from Colorado to Allentown (average of $62). Flying from Colorado to Allentown in July is currently the most expensive (average of $175). 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 December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Colorado to Allentown in the evening. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the afternoon.

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 United Airlines fly from Colorado to Allentown in about 8h 30m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1534 mi.

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

    While some choose either Colorado Springs - Allentown-Bethlehem or Vail Eagle 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 $305, our data indicates the cheapest price to be $288. The most popular route (Denver Intl - Allentown-Bethlehem), is priced around $314.

  • 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, May is the cheapest month in which you can book a flight from Colorado to Allentown (average of $62). Flying from Colorado to Allentown in July is currently the most expensive (average of $175). 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 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$136Average$200FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$160Average$396FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$163Average$468FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$488FlexibilityNo cancel feeOn-timeN/A

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