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$100+ Cheap flights from Colorado to Allentown (ABE)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ABE
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$100
(Booking.com)

Popular in

December

Cheapest in

October

Average price

$235

Good round-trip deal

$128 or less

Good one-way deal

$92 or less
From Colorado to Allentown-Bethlehem
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Highest demand for flights based on searches. 22% potential increase in price ($87 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:51 amDEN - ABE
Nonstop3h 22mAllegiant Air
Sun 8/247:00 amABE - DEN
Nonstop4h 01mAllegiant Air
Deal found 6/10$100
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 8/237:05 amDEN - ABE
1 stop8h 29mDelta
Sat 8/306:14 pmABE - DEN
1 stop6h 41mDelta
Deal found 6/11$257
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/127:02 amDEN - ABE
1 stop8h 58mAmerican Airlines
Sun 8/176:15 amABE - DEN
1 stop8h 42mAmerican Airlines
Deal found 6/12$293
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 8/306:02 amCOS - ABE
2 stops10h 17mAmerican Airlines
Wed 9/32:37 pmABE - COS
2 stops9h 31mAmerican Airlines
Deal found 6/11$354
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/188:31 amDEN - ABE
3 stops35h 51mMultiple Airlines
Sun 7/207:00 amABE - DEN
Nonstop4h 01mMultiple Airlines
Deal found 6/10$401
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/41:25 pmDEN - ABE
1 stop6h 30mUnited Airlines
Tue 7/85:35 pmABE - DEN
1 stop7h 47mUnited Airlines
Deal found 6/11$499
This Delta deal was found by Cheapflights users on 6/12. 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 7/2510:54 amCOS - ABE
2 stops23h 21mDelta
Wed 7/306:14 pmABE - COS
2 stops17h 45mDelta
Deal found 6/12$565
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/96:00 amCOS - ABE
1 stop8h 53mUnited Airlines
Sat 10/185:28 pmABE - COS
1 stop6h 13mUnited Airlines
Deal found 6/11$929
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 6/1312:15 pmGJT - ABE
2 stops10h 05mAmerican Airlines
Mon 6/168:02 pmABE - GJT
2 stops15h 53mAmerican Airlines
Deal found 6/11$993
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/191:00 pmMTJ - ABE
1 stop6h 55mUnited Airlines
Sat 8/165:35 pmABE - MTJ
2 stops29h 16mUnited Airlines
Deal found 6/10$1,459
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/1910:31 amMTJ - ABE
2 stops11h 56mAmerican Airlines
Sat 8/168:07 pmABE - MTJ
3 stops15h 53mAmerican Airlines
Deal found 6/10$1,488
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 6/135:30 amGJT - ABE
3 stops9h 29mUnited Airlines
Mon 6/166:30 amABE - GJT
3 stops12h 26mUnited Airlines
Deal found 6/11$2,019

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 June 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

Thu 8/21

9:51 am-3:13 pm

Nonstop3h 22m

Allentown-Bethlehem

Sun 8/24

7:00 am-9:01 am

Nonstop4h 01m

$127

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Sat 8/23

7:05 am-5:34 pm

1 stop8h 29m

Allentown-Bethlehem

Sat 8/30

6:14 pm-10:55 pm

1 stop6h 41m

$257

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Tue 8/12

7:02 am-6:00 pm

1 stop8h 58m

Allentown-Bethlehem

Sun 8/17

6:15 am-12:57 pm

1 stop8h 42m

$293

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Sat 8/30

6:02 am-6:19 pm

2 stops10h 17m

Allentown-Bethlehem

Wed 9/3

2:37 pm-10:08 pm

2 stops9h 31m

$354

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 7/18

8:31 am-10:22 pm

3 stops35h 51m

Allentown-Bethlehem

Sun 7/20

7:00 am-9:01 am

Nonstop4h 01m

$401

DenverAllentown

DEN - ABE

DENABE

Denver Intl

Fri 7/4

1:25 pm-9:55 pm

1 stop6h 30m

Allentown-Bethlehem

Tue 7/8

5:35 pm-11:22 pm

1 stop7h 47m

$499

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Fri 7/25

10:54 am-12:15 pm

2 stops23h 21m

Allentown-Bethlehem

Wed 7/30

6:14 pm-9:59 am

2 stops17h 45m

$565

Colorado SpringsAllentown

COS - ABE

COSABE

Colorado Springs

Thu 10/9

6:00 am-4:53 pm

1 stop8h 53m

Allentown-Bethlehem

Sat 10/18

5:28 pm-9:41 pm

1 stop6h 13m

$929

Grand JunctionAllentown

GJT - ABE

GJTABE

Grand Junction Regnl

Sat 7/19

10:21 am-12:27 am

2 stops12h 06m

Allentown-Bethlehem

Sat 8/16

1:56 pm-9:01 pm

2 stops9h 05m

$1,052

MontroseAllentown

MTJ - ABE

MTJABE

Montrose County

Sat 7/19

1:00 pm-9:55 pm

1 stop6h 55m

Allentown-Bethlehem

Sat 8/16

5:35 pm-8:51 pm

2 stops29h 16m

$1,459

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, February is the cheapest month in which you can book a flight from Colorado to Allentown (average of $292). Flying from Colorado to Allentown in December is currently the most expensive (average of $395). 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 June 12, 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.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and Allegiant Air from Colorado to Allentown by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.3
Good
725 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    $144 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 American Airlines and Delta, with prices starting from $159 and $246, respectively.

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

    While some choose either Colorado Springs - Allentown-Bethlehem or Grand Junction Regnl - 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 $177, our data indicates the cheapest price to be $50. The most popular route (Denver Intl - Allentown-Bethlehem), is priced around $128.

  • 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 $292). Flying from Colorado to Allentown in December is currently the most expensive (average of $395). 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 5 airlines flying from Colorado to Allentown

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$42Average$150FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$74Average$222FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$162Average$366FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$163Average$500FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$393FlexibilityNo cancel feeOn-timeN/A

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