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$135+ Cheap flights from Allentown (ABE) to Colorado

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — DEN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Allentown to Colorado

Cheapest flights from Allentown to Colorado
Explore the most affordable flight options available from Allentown to Colorado. 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 12/10. 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.
Wed 12/316:17 amABE - DEN
1 stop8h 37mUnited Airlines
Thu 1/16:00 amDEN - ABE
1 stop8h 30mUnited Airlines
Deal found 12/10$459
This Delta deal was found by Cheapflights users on 12/9. 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 12/136:00 pmABE - DEN
1 stop6h 53mDelta
Tue 12/1611:34 amDEN - ABE
1 stop8h 37mDelta
Deal found 12/9$484
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 12/186:00 pmABE - DEN
1 stop6h 53mDelta
Wed 12/242:30 pmDEN - ABE
1 stop6h 16mDelta
Deal found 12/11$489
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/106:30 amABE - DEN
1 stop7h 55mUnited Airlines
Tue 12/1611:21 amDEN - ABE
1 stop8h 25mUnited Airlines
Deal found 12/9$519
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/191:34 pmABE - DEN
2 stops44h 09mMultiple Airlines
Mon 12/222:33 pmDEN - ABE
1 stop22h 42mMultiple Airlines
Deal found 12/11$551
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/245:07 pmABE - DEN
1 stop6h 59mUnited Airlines
Mon 12/298:26 pmDEN - ABE
1 stop18h 04mUnited Airlines
Deal found 12/9$572
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/117:30 amABE - DEN
1 stop16h 19mMultiple Airlines
Thu 12/1810:46 amDEN - ABE
2 stops34h 03mMultiple Airlines
Deal found 12/9$574
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/106:30 amABE - DEN
1 stop7h 55mUnited Airlines
Fri 12/196:00 amDEN - ABE
1 stop8h 30mUnited Airlines
Deal found 12/9$579
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 12/256:17 amABE - GJT
2 stops10h 20mUnited Airlines
Mon 12/296:05 pmGJT - ABE
2 stops20h 25mUnited Airlines
Deal found 12/10$598
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amABE - DEN
2 stops16h 49mMultiple Airlines
Fri 1/22:33 pmDEN - ABE
1 stop25h 27mMultiple Airlines
Deal found 12/10$614
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 12/186:17 amABE - DEN
1 stop8h 37mUnited Airlines
Wed 12/247:00 pmDEN - ABE
2 stops19h 30mUnited Airlines
Deal found 12/11$618
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.
Fri 12/262:30 pmABE - COS
1 stop9h 20mUnited Airlines
Thu 1/16:00 amCOS - ABE
1 stop8h 30mUnited Airlines
Deal found 12/11$939

Find flight deals from Allentown to Colorado

Keep the following information in mind while searching for Allentown to Colorado flight deals. Data was last updated December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$253
(Delta)

One-way from

$135
(Delta)

Popular in

December

Cheapest in

October

Average price

$367

Good one-way deal

$132 or less
Provider with most accurate pricing for New York (NYC)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Denver Intl flights.
Search Deals
From Allentown-Bethlehem to Colorado
Search Deals
One-way flight from Allentown-Bethlehem to Colorado
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a one-way flight from Allentown-Bethlehem to Colorado.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to Colorado 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 Allentown to Colorado that are best for you.

Fly from

Allentown

Fly to

Colorado

Route

Depart

Return

Price

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/17

5:58 pm-12:25 am

1 stop8h 27m

Denver Intl

Wed 2/25

7:05 am-5:16 pm

1 stop8h 11m

$269

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sat 2/28

5:58 pm-12:25 am

1 stop8h 27m

Denver Intl

Tue 3/3

12:00 pm-10:45 pm

1 stop8h 45m

$299

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/25

5:58 pm-12:25 am

1 stop8h 27m

Denver Intl

Tue 3/3

1:12 pm-10:45 pm

1 stop7h 33m

$299

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 1/23

5:59 pm-10:50 pm

1 stop6h 51m

Denver Intl

Fri 1/30

1:16 pm-10:50 pm

1 stop7h 34m

$309

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 2/20

5:58 pm-12:25 am

1 stop8h 27m

Denver Intl

Wed 2/25

1:12 pm-10:45 pm

1 stop7h 33m

$314

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Thu 2/19

2:14 pm-10:59 pm

1 stop10h 45m

Denver Intl

Thu 2/26

12:59 am-8:30 pm

2 stops17h 31m

$333

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 1/16

5:59 pm-10:55 pm

1 stop6h 56m

Denver Intl

Tue 1/20

7:05 am-5:14 pm

1 stop8h 09m

$344

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 2/27

5:58 pm-12:25 am

1 stop8h 27m

Denver Intl

Tue 3/3

1:12 pm-10:45 pm

1 stop7h 33m

$354

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/17

12:45 pm-5:46 pm

1 stop7h 01m

Denver Intl

Tue 2/24

1:25 pm-11:23 pm

1 stop7h 58m

$359

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 2/20

5:58 pm-12:25 am

1 stop8h 27m

Denver Intl

Sat 2/28

2:45 pm-10:45 pm

1 stop6h 00m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 37 results
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Best time to book a flight from Allentown to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Allentown 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 Allentown to Colorado

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

Currently, August is the cheapest month in which you can book a flight from Allentown to Colorado (average of $109). Flying from Allentown to Colorado 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 ABE to CO?

Find hourly flight availability from Allentown to Colorado. 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.

When flying from Allentown to Colorado, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 65% versus a flight in the morning.

What is the cheapest day to fly from Allentown to Colorado?

Use this chart to determine the cheapest time to fly round-trip from Allentown to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Allentown to Colorado flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Allentown to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,094 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
699 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,084 reviews
Delta
7.9
Good
8,007 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Colorado. 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 from for flights from Allentown to Colorado?

    Allentown-Bethlehem (ABE), located 3.9 mi from the city center, is the airport you fly out of when you book flights from Allentown to Colorado.

  • How popular is this Allentown to Colorado flight route?

    The Allentown-Bethlehem to Colorado flight path was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Allentown to Colorado?

    For as low as $379, Delta can have you in Colorado from Allentown in 6h 47m. The distance from Allentown to Colorado is about 1552 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $53. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Allentown to Colorado for a low price.

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

    When deciding which route to take from Allentown to Colorado consider Allentown-Bethlehem - Denver Intl, Allentown-Bethlehem - Vail Eagle County or Allentown-Bethlehem - Colorado Springs as they are the most popular.

  • What are the cheapest flights from Allentown to Colorado?

    Looking for the cheapest flight from Allentown to Colorado? While on average our users pay $132, our data indicates the cheapest price to be $101. The most popular route (Allentown-Bethlehem - Denver Intl), is priced around $253.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Allentown to Colorado (average of $109). Flying from Allentown to Colorado 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.

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Top 5 airlines flying from Allentown to Colorado

Discover the top 5 airlines that operate flights from Allentown to Colorado. 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
FrontierCheapest$89Average$192FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$120Average$220FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$193Average$361FlexibilityNo cancel feeOn-time71%
DeltaCheapest$262Average$425FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$272Average$638FlexibilityNo cancel feeOn-time69%

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