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Cheap flights from Allentown to Denver from $71

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 10/26. 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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Cheap round-trip flights

Allegiant Air Logo
7:30 am - 9:25 amABE-DEN
3h 55mnonstop
Allegiant Air Logo
10:15 am - 3:42 pmDEN-ABE
3h 27mnonstop
$168Allegiant Air
Find Deal
jue., oct. 2 - dom., oct. 5
American Airlines Logo
4:30 pm - 11:09 pmABE-DEN
8h 39m1 stop
American Airlines Logo
6:47 am - 4:39 pmDEN-ABE
7h 52m1 stop
$179American Airlines
Find Deal
mar., nov. 4 - sáb., nov. 8
American Airlines Logo
1:46 pm - 10:19 pmABE-DEN
10h 33m2 stops
American Airlines Logo
6:47 am - 4:39 pmDEN-ABE
7h 52m1 stop
$184American Airlines
Find Deal
mar., nov. 4 - sáb., nov. 8
American Airlines Logo
1:46 pm - 10:22 pmABE-DEN
10h 36m2 stops
American Airlines Logo
6:00 am - 4:39 pmDEN-ABE
8h 39m2 stops
$189American Airlines
Find Deal
mar., nov. 4 - sáb., nov. 8
Allegiant Air Logo
7:30 am - 9:25 amABE-DEN
3h 55mnonstop
Allegiant Air Logo
10:15 am - 3:42 pmDEN-ABE
3h 27mnonstop
$194Allegiant Air
Find Deal
dom., oct. 19 - jue., oct. 23
Allegiant Air Logo
7:30 am - 9:25 amABE-DEN
3h 55mnonstop
Allegiant Air Logo
10:15 am - 3:42 pmDEN-ABE
3h 27mnonstop
$196Allegiant Air
Find Deal
jue., oct. 2 - dom., oct. 5
Multiple Airlines Logo
7:30 am - 9:25 amABE-DEN
3h 55mnonstop
Multiple Airlines Logo
8:21 pm - 11:24 amDEN-ABE
13h 03m1 stop
$199Multiple Airlines
Find Deal
dom., oct. 19 - mié., oct. 22
Allegiant Air Logo
7:30 am - 9:25 amABE-DEN
3h 55mnonstop
Allegiant Air Logo
10:15 am - 3:42 pmDEN-ABE
3h 27mnonstop
$204Allegiant Air
Find Deal
dom., oct. 19 - jue., oct. 23
Delta Logo
12:46 pm - 5:49 pmABE-DEN
7h 03m1 stop
Delta Logo
12:50 pm - 10:15 pmDEN-ABE
7h 25m1 stop
$257Delta
Find Deal
sáb., oct. 25 - mié., nov. 5
Delta Logo
6:00 pm - 11:59 pmABE-DEN
7h 59m1 stop
Delta Logo
12:50 pm - 10:15 pmDEN-ABE
7h 25m1 stop
$258Delta
Find Deal
vie., oct. 24 - mié., nov. 5

Allegiant Air flights from Allentown to Denver

Our best Allegiant Air deals on Allentown to Denver flight tickets
Allegiant Air
Oct 2
ABE7:30 amAllentown-Bethlehem
3h 55m
DEN9:25 amDenver Intl
Oct 5
DEN10:15 amDenver Intl
3h 27m
ABE3:42 pmAllentown-Bethlehem
$168
Find similar
Allegiant Air
Oct 19
ABE7:30 amAllentown-Bethlehem
3h 55m
DEN9:25 amDenver Intl
Oct 23
DEN10:15 amDenver Intl
3h 27m
ABE3:42 pmAllentown-Bethlehem
$194
Find similar
Allegiant Air
Oct 2
ABE7:30 amAllentown-Bethlehem
3h 55m
DEN9:25 amDenver Intl
Oct 5
DEN10:15 amDenver Intl
3h 27m
ABE3:42 pmAllentown-Bethlehem
$196
Find similar

American Airlines flights from Allentown to Denver

Our best American Airlines deals on Allentown to Denver flight tickets
American Airlines
Nov 4
ABE4:30 pmAllentown-Bethlehem
8h 39m
1 stop
DEN11:09 pmDenver Intl
Nov 8
DEN6:47 amDenver Intl
7h 52m
1 stop
ABE4:39 pmAllentown-Bethlehem
$179
Find similar
American Airlines
Nov 4
ABE1:46 pmAllentown-Bethlehem
10h 33m
2 stops
DEN10:19 pmDenver Intl
Nov 8
DEN6:47 amDenver Intl
7h 52m
1 stop
ABE4:39 pmAllentown-Bethlehem
$184
Find similar
American Airlines
Nov 4
ABE1:46 pmAllentown-Bethlehem
10h 36m
2 stops
DEN10:22 pmDenver Intl
Nov 8
DEN6:00 amDenver Intl
8h 39m
2 stops
ABE4:39 pmAllentown-Bethlehem
$189
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 septiembre 17, 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

jue. 10/2

7:30 am-9:25 am

Nonstop3h 55m

Denver Intl

dom. 10/5

10:15 am-3:42 pm

Nonstop3h 27m

$168

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

mar. 11/4

4:30 pm-11:09 pm

1 stop8h 39m

Denver Intl

sáb. 11/8

6:47 am-4:39 pm

1 stop7h 52m

$179

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

mar. 11/4

1:46 pm-10:19 pm

2 stops10h 33m

Denver Intl

sáb. 11/8

6:47 am-4:39 pm

1 stop7h 52m

$184

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

mar. 11/4

1:46 pm-10:22 pm

2 stops10h 36m

Denver Intl

sáb. 11/8

6:00 am-4:39 pm

2 stops8h 39m

$189

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

dom. 10/19

7:30 am-9:25 am

Nonstop3h 55m

Denver Intl

jue. 10/23

10:15 am-3:42 pm

Nonstop3h 27m

$194

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

jue. 10/2

7:30 am-9:25 am

Nonstop3h 55m

Denver Intl

dom. 10/5

10:15 am-3:42 pm

Nonstop3h 27m

$196

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

dom. 10/19

7:30 am-9:25 am

Nonstop3h 55m

Denver Intl

mié. 10/22

8:21 pm-11:24 am

1 stop13h 03m

$199

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

dom. 10/19

7:30 am-9:25 am

Nonstop3h 55m

Denver Intl

jue. 10/23

10:15 am-3:42 pm

Nonstop3h 27m

$204

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

sáb. 10/25

12:46 pm-5:49 pm

1 stop7h 03m

Denver Intl

mié. 11/5

12:50 pm-10:15 pm

1 stop7h 25m

$257

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

vie. 10/24

6:00 pm-11:59 pm

1 stop7h 59m

Denver Intl

mié. 11/5

12:50 pm-10:15 pm

1 stop7h 25m

$258

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 $207, 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 August to fly from Allentown, when ticket prices are also cheap, with an average price of $243.

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 Friday when prices can be found for as low as $189. 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 Tuesday, with ticket prices averaging around $297.

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 $220. Flights in the afternoon are often more expensive with an average ticket price of $431.

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 $331 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 $202 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.

How have Allentown to Denver flight prices changed over time?

As of September 2025, prices for Allentown to Denver flights are approximately 23% cheaper 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

$75

Fastest flight time

3h 55m

Direct flights

Mon and Fri

Airports in Denver

1 airport
The best one-way flight to Denver from Allentown in the past 72 hours is $75. The best round-trip flight deal from Allentown to Denver found on momondo in the last 72 hours is $153.
The fastest flight from Allentown to Denver takes 3h 55m
Direct flights go from Allentown to Denver on Monday and Friday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Denver: 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. 3h 45m 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 $44Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Allegiant AirPriceFrom $119Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $215Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $250Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $272Free CancellationRating
7.9
7,961 reviews
Search Delta flights

Traveling to a place near Denver?

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

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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