Cheap Flights from Allentown to Denver International

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Flight deals from Allentown to Denver International

Looking for a cheap last-minute deal or the best return flight from Allentown to Denver International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Allentown to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Allentown to Denver International flights are currently cheapest in August.

Direct flights from Allentown to Denver International

Allentown to Denver International: Alternative routes

Compare routes from Allentown to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Allentown to Denver: Flight information

The things to know before you go.
Cheapest flight foundر.ق.‏ 193
Cheapest month to flyAugust
Average flight time3 hrs, 54 mins
Most popular airlineAllegiant Air
Average flights per week2

Finding cheap flights from Allentown to Denver International: Frequently asked questions

The best price we found for a return flight from Allentown to Denver International is ر.ق.‏ 386. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 54 minutes is the average flight time from Allentown to Denver International.
Allegiant Air flies direct from Allentown to Denver International.
As of July 2025, there are 2 flights per week flying from Allentown to Denver International.
The cheapest month to fly from Allentown to Denver International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Allentown Airport to Denver International Airport on Sunday, 24 August 2025.
Yes – the average flight time is 3 hours and 54 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Allegiant Air offers the cheapest flight tickets to Denver International.

Travelling from Lehigh Valley International Airport (ABE) to Denver International Airport (DEN): what you need to know

  • Around 4 hours is how long you can expect to be in the air on a direct flight from Lehigh Valley International Airport to Denver International Airport.

  • The timezone in Denver is UTC-6, which is two hours behind Allentown.

  • Leave enough time to catch your ABE to DEN flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months like July, it's a good idea to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of international flights when you travel during a high season in general.

  • Allegiant Air is your gateway to discovering Denver (and maybe even some other great corners of United States!). Browse the direct flights from Lehigh Valley International Airport to Denver International Airport offered by this carrier.

  • The airline with the highest booking volume on this route is Allegiant Air.

  • If you'd like to explore another city along the way, just uncheck 'Direct flights only' when searching for your ticket from Lehigh Valley International Airport to Denver International Airport. Here are the most popular stopovers between ABE and DEN:

    • O'Hare International Airport

    • Myrtle Beach International Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Lehigh Valley International Airport (ABE) to Denver International Airport (DEN)

  • ر.ق.‏ 193 is currently the best price for a one-way Lehigh Valley International Airport to Denver International Airport flight. Return flights start from ر.ق.‏ 386. These fares may change depending on demand and availability.

  • Get cheap tickets from ABE to DEN by booking ten months ahead. According to our research, that's the sweet spot for picking up a bargain.

  • September is the cheapest month for flights from Lehigh Valley International Airport to Denver International Airport. If you're looking to travel during a different time of year, the 'Whole month' tool will show you the lowest airfares across every month.

  • Cut down on the time spent looking for cheap flights from ABE to DEN by setting up a Price Alert. You'll get an email or notification through the app when a lower fare becomes available.

  • Secure the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Lehigh Valley International Airport to Denver International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Lehigh Valley International Airport (ABE)

  • ABE's address is 3311 Airport Road.

  • Of the flights that depart from Lehigh Valley International Airport, 78.8% touch down on time at their destination.

  • Central Allentown to Lehigh Valley International Airport is around 8 kilometres. Depending on traffic, it'll take about 10 minutes to get there if you're driving, catching a cab or ride-sharing.

  • You can expect a trip time of roughly 30 minutes when using public transport.

  • Searching for a handy hotel close to ABE? If you've booked an early flight from Lehigh Valley International Airport to Denver International Airport, these stays will have you sleeping moments from check-in:

Arriving at Denver International Airport (DEN)

  • Once your Lehigh Valley International Airport to Denver International Airport flight has arrived, kick back and relax at a hotel close by. Baymont by Wyndham Denver International Airport is a great option that's not too far from DEN.

  • Grab a Denver International Airport rental car and discover Denver and beyond with your own set of wheels. Routes Car Rentals, Dollar and Budget are popular outlets to choose from here.

  • To get the best deal, reserve your ride from Denver International Airport around one week before you set off.

Getting from Denver International Airport (DEN) to central Denver

  • DEN is located at 8500 Pena Boulevard.

  • Denver International Airport is roughly 40 kilometres from the centre of Denver. The drive time takes around 35 minutes.

  • Travelling to the centre by public transport takes about 1 hour 30 minutes.

When to fly to Denver International Airport (DEN)

  • The quietest month for a flight from Lehigh Valley International Airport to Denver International Airport is April, while July is the most popular. Choose the ideal time to visit Denver based on whether you prefer a faster pace or a more relaxed vibe.

  • Before locking in your flight from Lehigh Valley International Airport to Denver International Airport, think about the kind of weather you like. July is the warmest month in Denver, with temperatures ranging from 14ºC to 32ºC.

  • If you like travelling in cooler conditions, look for a cheap ticket from ABE to DEN in January. Average temperatures are between -9ºC and 7ºC then.

Explore more of United States

  • Colorado Springs is just one of the many places in United States waiting to be explored after you've seen Denver. Around 105 kilometres away to the south, its best attractions include US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • If there's time to check out another side of United States, head for Aurora, about 13 kilometres east of Denver. Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.