Cheap Flights from Denver to Allentown

Cheapest flights from Denver to Allentown

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Denver to Allentown. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$266

Frontier Airlines

2 layovers

1d 15h 18m

08/05/2026

The cheapest one-way flight from Denver to Allentown departs on 08/05/2026, is operated by Frontier Airlines and costs $266

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Denver to Allentown

The fastest flight

1d 15h 18m

Fastest flight from Denver to Allentown takes 1d 15h 18m

Direct flights

No direct flights

There are no direct flights on this route.

Earliest flight

5:46 PM

Latest flight

5:47 PM

Direct flights count

3

Distance

2497km

Timezone difference

2h

The distance between Denver and Allentown is 2497km (1548 miles). There are 3 direct flights from Denver to Allentown. The time difference between Denver and Allentown is 2h. Flights from Denver begin at 5:46 PM. The latest flight from Denver departs at 5:47 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Denver to Allentown by month

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Denver to Allentown

August 2026

Lowest price

on average:

$266

Avg Price

Airlines operating on route

You can fly from Denver to Allentown with Frontier Airlines. It is the only carrier on this route, which makes the choice straightforward. Despite the lack of competition, ticket prices remain affordable: fares start from $266. Our service helps you track price changes, compare by dates, and select the most suitable flight. If you value stability and predictability, flying with Frontier Airlines is a convenient solution. We make it easy to find good deals and ensure a comfortable booking process.

Frontier Airlines

starting at $266

Non-stop flights from Denver to Allentown

A non-stop flight is the most convenient and comfortable way to fly from Denver to Allentown, despite the fact that sometimes flights with transfers can cost significantly less.

There appear to be no non-stop flights from Denver to Allentown at this time.... Well, or something went wrong on our side and we couldn't find anything

Schedule of direct flights from Denver to Allentown

There are most likely no direct flights on the Denver — Allentown route

Denver airports overview

Centennial Airport

•

APA

1km

Denver International Airport

•

DEN

30km

•

Allentown airports overview

Lehigh Valley International Airport

•

ABE

Serving Allentown and the Lehigh Valley in eastern Pennsylvania, providing regional and domestic connections with convenient access via I-78 and Route 22 for travelers to nearby cities.

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Denver to Allentown?

The cheapest flight ticket from Denver to Allentown according to data for the last 48 hours costs $266

When is the best time to buy air tickets on the route Denver — Allentown?

Often the best time to buy tickets from Denver to Allentown is 2 months before departure.

When is the cheapest time of year to fly from Denver to Allentown?

Based on statistics over the past years, the lowest prices for flights from Denver to Allentown can be found flying in these months: August.

How long does it take to fly from Denver to Allentown?

The fastest flights from Denver to Allentown start from 15 hours 18 minutes in the air.

Which airline can fly direct from Denver to Allentown?

The following airlines operate direct flights on the route Denver — Allentown:

Special offers and sales on air tickets from Denver to Allentown

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Denver to Allentown

Alternative routes

Albuquerque ➜ Allentown•Amarillo ➜ Allentown•Colorado Springs ➜ Allentown•Clovis ➜ Allentown•Fort Collins ➜ Allentown•Grand Junction ➜ Allentown•Ogden ➜ Allentown•Pueblo ➜ Allentown•Provo ➜ Allentown•Salt Lake City ➜ Allentown•Denver ➜ Lancaster•Denver ➜ New York•Denver ➜ Philadelphia

•••••••••••••••••••

Cheapest one way flight

$266

Frontier Airlines

2 layovers

1d 15h 18m

08/05/2026

The cheapest one-way flight from Denver to Allentown departs on 08/05/2026, is operated by Frontier Airlines and costs $266

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Denver to Allentown

The fastest flight

1d 15h 18m

Fastest flight from Denver to Allentown takes 1d 15h 18m

Direct flights

No direct flights

There are no direct flights on this route.

Earliest flight

5:46 PM

Latest flight

5:47 PM

Direct flights count

3

Distance

2497km

Timezone difference

2h

What is the cheapest price for flights from Denver to Allentown?

The cheapest flight ticket from Denver to Allentown according to data for the last 48 hours costs $266

When is the best time to buy air tickets on the route Denver — Allentown?

Often the best time to buy tickets from Denver to Allentown is 2 months before departure.

When is the cheapest time of year to fly from Denver to Allentown?

Based on statistics over the past years, the lowest prices for flights from Denver to Allentown can be found flying in these months: August.

How long does it take to fly from Denver to Allentown?

The fastest flights from Denver to Allentown start from 15 hours 18 minutes in the air.

Which airline can fly direct from Denver to Allentown?

The following airlines operate direct flights on the route Denver — Allentown:

Cheap Flights from Denver to Allentown — $266

Compare airlines, prices, and flight durations for your trip

Cheapest flights from Denver to Allentown

Cheapest one way flight

$266

Frontier Airlines

2 layovers

1d 15h 18m

08/05/2026

Cheapest round trip flight

—

—

—

—

—

The fastest flight

1d 15h 18m

Direct flights

No direct flights

Earliest flight

5:46 PM

Latest flight

5:47 PM

Direct flights count

3

Distance

2497km

Timezone difference

2h

Airfare from Denver to Allentown by month

August 2026

on average:

$266

Airlines operating on route

Non-stop flights from Denver to Allentown

Schedule of direct flights from Denver to Allentown

Denver airports overview

Centennial Airport

Denver International Airport

Allentown airports overview

Lehigh Valley International Airport

Frequently asked questions (FAQ)

Special offers and sales on air tickets from Denver to Allentown

Alternative routes

Cheapest one way flight

$266

Frontier Airlines

2 layovers

1d 15h 18m

08/05/2026

Cheapest round trip flight

—

—

—

—

—

The fastest flight

1d 15h 18m

Direct flights

No direct flights

Earliest flight

5:46 PM

Latest flight

5:47 PM

Direct flights count

3

Distance

2497km

Timezone difference

2h

August 2026

on average:

$266

Centennial Airport

Denver International Airport

Lehigh Valley International Airport