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Cheap flights from Allentown to Denver from $120

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 3/31. 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.
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$196Allegiant Air
Mon, May 25 - Fri, Jun 5
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$223Allegiant Air
Mon, Jun 1 - Fri, Jun 5
Delta Logo
5:58 pm - 12:09 am
ABE
-
DEN
8h 11m
1 stop
Delta Logo
3:15 pm - 10:56 pm
DEN
-
ABE
5h 41m
1 stop
$239Delta
Tue, Mar 17 - Tue, Mar 24
Delta Logo
5:58 pm - 12:23 am
ABE
-
DEN
8h 25m
1 stop
Delta Logo
7:05 am - 5:12 pm
DEN
-
ABE
8h 07m
1 stop
$241Delta
Tue, Feb 24 - Sat, Feb 28
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$243Allegiant Air
Fri, May 29 - Fri, Jun 5
Allegiant Air Logo
7:30 am - 9:32 am
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$255Allegiant Air
Mon, Jun 8 - Mon, Jun 15
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$257Allegiant Air
Mon, Jun 1 - Mon, Jun 8
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
5:42 pm - 11:04 pm
DEN
-
ABE
3h 22mnonstop
$265Allegiant Air
Fri, May 29 - Mon, Jun 1
Delta Logo
5:58 pm - 12:23 am
ABE
-
DEN
8h 25m
1 stop
Delta Logo
7:05 am - 5:12 pm
DEN
-
ABE
8h 07m
1 stop
$271Delta
Thu, Feb 26 - Sat, Feb 28
Allegiant Air Logo
2:50 pm - 4:52 pm
ABE
-
DEN
4h 02mnonstop
Allegiant Air Logo
10:22 am - 3:49 pm
DEN
-
ABE
3h 27mnonstop
$288Allegiant Air
Fri, May 29 - Mon, Jun 8

Allegiant Air flights from Allentown to Denver

Our best Allegiant Air deals on Allentown to Denver flight tickets
Allegiant Air
May 25
ABE2:50 pmAllentown-Bethlehem
4h 02m
DEN4:52 pmDenver Intl
Jun 5
DEN10:22 amDenver Intl
3h 27m
ABE3:49 pmAllentown-Bethlehem
$196
Allegiant Air
Jun 1
ABE2:50 pmAllentown-Bethlehem
4h 02m
DEN4:52 pmDenver Intl
Jun 5
DEN10:22 amDenver Intl
3h 27m
ABE3:49 pmAllentown-Bethlehem
$223
Allegiant Air
May 29
ABE2:50 pmAllentown-Bethlehem
4h 02m
DEN4:52 pmDenver Intl
Jun 5
DEN10:22 amDenver Intl
3h 27m
ABE3:49 pmAllentown-Bethlehem
$243

Delta flights from Allentown to Denver

Our best Delta deals on Allentown to Denver flight tickets
Delta
Mar 17
ABE5:58 pmAllentown-Bethlehem
8h 11m
1 stop
DEN12:09 amDenver Intl
Mar 24
DEN3:15 pmDenver Intl
5h 41m
1 stop
ABE10:56 pmAllentown-Bethlehem
$239
Delta
Feb 24
ABE5:58 pmAllentown-Bethlehem
8h 25m
1 stop
DEN12:23 amDenver Intl
Feb 28
DEN7:05 amDenver Intl
8h 07m
1 stop
ABE5:12 pmAllentown-Bethlehem
$241
Delta
Feb 26
ABE5:58 pmAllentown-Bethlehem
8h 25m
1 stop
DEN12:23 amDenver Intl
Feb 28
DEN7:05 amDenver Intl
8h 07m
1 stop
ABE5:12 pmAllentown-Bethlehem
$271

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 February 2, 2026.
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

Mon 5/25

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$196

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$223

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 3/17

5:58 pm-12:09 am

1 stop8h 11m

Denver Intl

Tue 3/24

3:15 pm-10:56 pm

1 stop5h 41m

$239

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Tue 2/24

5:58 pm-12:23 am

1 stop8h 25m

Denver Intl

Sat 2/28

7:05 am-5:12 pm

1 stop8h 07m

$241

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 5/29

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Fri 6/5

10:22 am-3:49 pm

Nonstop3h 27m

$243

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/8

7:30 am-9:32 am

Nonstop4h 02m

Denver Intl

Mon 6/15

10:22 am-3:49 pm

Nonstop3h 27m

$255

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Mon 6/1

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Mon 6/8

10:22 am-3:49 pm

Nonstop3h 27m

$257

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 5/29

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Mon 6/1

5:42 pm-11:04 pm

Nonstop3h 22m

$265

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Thu 2/26

5:58 pm-12:23 am

1 stop8h 25m

Denver Intl

Sat 2/28

7:05 am-5:12 pm

1 stop8h 07m

$271

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Fri 5/29

2:50 pm-4:52 pm

Nonstop4h 02m

Denver Intl

Mon 6/8

10:22 am-3:49 pm

Nonstop3h 27m

$288

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 $128. 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 Monday, with ticket prices averaging around $318.

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 morning when flights can be purchased for as low as $214. Flights at noon are often more expensive with an average ticket price of $331.

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 $302 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 $201 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?

You could potentially save up to 25% on your flight if you consider stops on a Allentown to Denver flight.

How have Allentown to Denver flight prices changed over time?

As of February 2026, prices for Allentown to Denver flights are approximately 198% 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

$291

Fastest flight time

4h 00m

Direct flights

Tue and Sat

Airports in Denver

1 airport
The best flight deal from Allentown to Denver found on momondo in the last 72 hours is $291
The fastest flight from Allentown to Denver takes 4h 00m
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 00m 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 $75Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
Allegiant AirPriceFrom $116Free CancellationRating
7.2
707 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
United AirlinesPriceFrom $208Free CancellationRating
7.4
9,225 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,128 reviews
Search Delta 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
Manitou Springs
Longmont
Cripple Creek
Boulder
Keystone
Greeley
Lakewood
Westminster
Thornton
Frisco
Copper Mountain
Winter Park
Centennial
Englewood
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.

An easier way to manage your Denver trip

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