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Cheap flights from Allentown to Denver from $106

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Denver departing on 1/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Allentown to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:15 pm - 10:31 pm
ABE
-
DEN
7h 16m1 stop
American Airlines Logo
8:44 am - 10:26 pm
DEN
-
ABE
11h 42m2 stops
$248American Airlines
Wed, Dec 31 - Wed, Jan 7
Delta Logo
5:59 pm - 12:28 am
ABE
-
DEN
8h 29m1 stop
Delta Logo
1:12 pm - 10:45 pm
DEN
-
ABE
7h 33m1 stop
$253Delta
Wed, Feb 11 - Sat, Feb 14
American Airlines Logo
1:02 pm - 5:42 pm
ABE
-
DEN
6h 40m1 stop
American Airlines Logo
3:59 pm - 12:30 am
DEN
-
ABE
6h 31m1 stop
$257American Airlines
Tue, Feb 10 - Thu, Feb 19
American Airlines Logo
1:02 pm - 10:34 pm
ABE
-
DEN
11h 32m2 stops
American Airlines Logo
3:59 pm - 12:30 am
DEN
-
ABE
6h 31m1 stop
$262American Airlines
Tue, Feb 10 - Thu, Feb 19
Multiple Airlines Logo
12:00 pm - 10:59 pm
ABE
-
DEN
12h 59m1 stop
Multiple Airlines Logo
6:00 am - 10:07 pm
DEN
-
ABE
14h 07m1 stop
$266Multiple Airlines
Wed, Feb 11 - Sat, Feb 14
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
5:39 pm - 11:06 pm
DEN
-
ABE
3h 27mnonstop
$267Allegiant Air
Mon, Jun 1 - Fri, Jun 5
Delta Logo
5:59 pm - 12:28 am
ABE
-
DEN
8h 29m1 stop
Delta Logo
2:45 pm - 10:45 pm
DEN
-
ABE
6h 00m1 stop
$283Delta
Wed, Feb 11 - Sat, Feb 14
Multiple Airlines Logo
12:00 pm - 7:39 am
ABE
-
DEN
21h 39m2 stops
Multiple Airlines Logo
9:26 am - 10:07 pm
DEN
-
ABE
10h 41m1 stop
$298Multiple Airlines
Wed, Feb 11 - Sat, Feb 14
Multiple Airlines Logo
6:00 am - 7:55 am
ABE
-
DEN
27h 55m1 stop
Multiple Airlines Logo
6:00 am - 8:33 pm
DEN
-
ABE
12h 33m2 stops
$302Multiple Airlines
Fri, Feb 20 - Mon, Feb 23
Delta Logo
1:00 pm - 8:23 pm
ABE
-
DEN
9h 23m1 stop
Delta Logo
1:35 pm - 10:56 pm
DEN
-
ABE
7h 21m1 stop
$309Delta
Tue, Apr 21 - Tue, Apr 28

American Airlines flights from Allentown to Denver

Our best American Airlines deals on Allentown to Denver flight tickets
American Airlines
Dec 31
ABE5:15 pmAllentown-Bethlehem
7h 16m
1 stop
DEN10:31 pmDenver Intl
Jan 7
DEN8:44 amDenver Intl
11h 42m
2 stops
ABE10:26 pmAllentown-Bethlehem
$248
Find similar
American Airlines
Feb 10
ABE1:02 pmAllentown-Bethlehem
6h 40m
1 stop
DEN5:42 pmDenver Intl
Feb 19
DEN3:59 pmDenver Intl
6h 31m
1 stop
ABE12:30 amAllentown-Bethlehem
$257
Find similar
American Airlines
Feb 10
ABE1:02 pmAllentown-Bethlehem
11h 32m
2 stops
DEN10:34 pmDenver Intl
Feb 19
DEN3:59 pmDenver Intl
6h 31m
1 stop
ABE12:30 amAllentown-Bethlehem
$262
Find similar

United Airlines flights from Allentown to Denver

Our best United Airlines deals on Allentown to Denver flight tickets
United Airlines
Jan 17
ABE6:15 amAllentown-Bethlehem
8h 23m
1 stop
DEN12:38 pmDenver Intl
Jan 18
DEN6:00 amDenver Intl
8h 22m
1 stop
ABE4:22 pmAllentown-Bethlehem
$297
Find similar
United Airlines
Jan 20
ABE11:30 amAllentown-Bethlehem
6h 22m
1 stop
DEN3:52 pmDenver Intl
Jan 25
DEN6:00 amDenver Intl
8h 22m
1 stop
ABE4:22 pmAllentown-Bethlehem
$343
Find similar
United Airlines
Dec 23
ABE2:30 pmAllentown-Bethlehem
7h 16m
1 stop
DEN7:46 pmDenver Intl
Dec 30
DEN6:00 amDenver Intl
5h 55m
1 stop
ABE1:55 pmAllentown-Bethlehem
$404
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to Denver 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Allentown to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 12/31

5:15 pm-10:31 pm

1 stop7h 16m

Denver Intl

Wed 1/7

8:44 am-10:26 pm

2 stops11h 42m

$248

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/11

5:59 pm-12:28 am

1 stop8h 29m

Denver Intl

Sat 2/14

1:12 pm-10:45 pm

1 stop7h 33m

$253

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/10

1:02 pm-5:42 pm

1 stop6h 40m

Denver Intl

Thu 2/19

3:59 pm-12:30 am

1 stop6h 31m

$257

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/10

1:02 pm-10:34 pm

2 stops11h 32m

Denver Intl

Thu 2/19

3:59 pm-12:30 am

1 stop6h 31m

$262

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/11

12:00 pm-10:59 pm

1 stop12h 59m

Denver Intl

Sat 2/14

6:00 am-10:07 pm

1 stop14h 07m

$266

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

5:39 pm-11:06 pm

Nonstop3h 27m

$267

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/11

5:59 pm-12:28 am

1 stop8h 29m

Denver Intl

Sat 2/14

2:45 pm-10:45 pm

1 stop6h 00m

$283

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Wed 2/11

12:00 pm-7:39 am

2 stops21h 39m

Denver Intl

Sat 2/14

9:26 am-10:07 pm

1 stop10h 41m

$298

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 2/20

6:00 am-7:55 am

1 stop27h 55m

Denver Intl

Mon 2/23

6:00 am-8:33 pm

2 stops12h 33m

$302

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 4/21

1:00 pm-8:23 pm

1 stop9h 23m

Denver Intl

Tue 4/28

1:35 pm-10:56 pm

1 stop7h 21m

$309

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Allentown to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Allentown is in September. Flight prices, which tend to average around $208, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until October to fly from Allentown, when ticket prices are also cheap, with an average price of $213.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $363. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $445.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $284. Flights in the morning are often more expensive with an average ticket price of $418.

What is the cheapest Allentown-Bethlehem to Denver Intl flight route?

Fly from Allentown-Bethlehem to Denver Intl for the best Allentown-Bethlehem - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $323 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Allentown for as low as $193 on momondo.

What cabin class options are available on Allentown-Bethlehem to Denver Intl flights?

There is only 1 cabin class available to choose from on Allentown-Bethlehem to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Allentown to Denver flights?

No. A direct flight is the cheapest option for a flight between Allentown to Denver.

How have Allentown to Denver flight prices changed over time?

As of December 2025, prices for Allentown to Denver flights are approximately 416% more expensive when compared to flights at the same time last year.

When to book flights from Allentown to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Allentown to Denver (ABE to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Denver

Best Price Found

$132

Fastest flight time

4h 02m

Direct flights

Tue and Sat

Airports in Denver

1 airport
The best one-way flight to Denver from Allentown in the past 72 hours is $132. The best round-trip flight deal from Allentown to Denver found on momondo in the last 72 hours is $395.
The fastest flight from Allentown to Denver takes 4h 02m
Direct flights go from Allentown to Denver on Tuesday and Saturday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Denver. From Allentown there are direct flights to Denver Intl (DEN).
Search flight deals

  • How far is Allentown-Bethlehem to Denver Intl by plane?

    Denver Intl is 1551.0 mi away from Allentown-Bethlehem. 4h 02m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Denver Intl Airport?

    Prices for flights from Allentown-Bethlehem Airport to Denver Intl Airport refresh daily.

  • How many operators does momondo search for flights from Allentown-Bethlehem Airport to Denver Intl Airport?

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Denver Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Allentown to Denver?

  • What is the most popular airline from Allentown to Denver?

Best airlines flying from Allentown to Denver

Compare and see reviews for airlines that fly from Allentown to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $89Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
Allegiant AirPriceFrom $120Free CancellationRating
7.2
700 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
DeltaPriceFrom $262Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $272Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Manitou Springs
Longmont
Boulder
Greeley
Lakewood
Thornton
Westminster
Winter Park
Copper Mountain
Silverthorne
Frisco
Centennial
Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Denver?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to Denver. momondo saves you time and could save you money on your trip.

Can I find flights from Allentown to Denver with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Denver from Allentown with this policy.

How can momondo help me find flights from Allentown to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Allentown.

I’m not ready to book a flight from Allentown to Denver right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Denver, momondo offers a useful price alert feature which will track prices for flights to Denver from Allentown and alert you when they change.

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