Cheap flights from Allentown to Denver from $53
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 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Allentown to Denver
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Allegiant Air flights from Allentown to Denver
Our best Allegiant Air deals on Allentown to Denver flight tickets
American Airlines flights from Allentown to Denver
Our best American Airlines deals on Allentown to Denver flight tickets
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 $198, 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 $207.
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 Monday when prices can be found for as low as $165. 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 Wednesday, with ticket prices averaging around $251.
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 $210. 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 $329 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 are 1 cabin classes 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.
What is the cheapest airline that flies from Allentown-Bethlehem to Denver Intl?
Allegiant Air, American Airlines, and Delta are the most popular carriers operating from Allentown-Bethlehem to Denver Intl
What airlines fly to Denver?
United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Denver from Allentown according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 8 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.
How many flights depart from Allentown to Denver on average per week?
The number of flights available between Allentown and Denver is 2 per week as of July 2025. The most frequent departure day is Thu, with 50% of weekly flights leaving on this day.
When to book flights from Allentown to Denver
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
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?
The number of operators available for flights from Allentown-Bethlehem Airport to Denver Intl Airport is 5 as of July 2025.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Allentown to Denver is Airbus A320-100/200 (55.40% of total bookings). The next most popular plane models are Airbus A321neo (9.98%), Airbus A320neo (8.55%), and Boeing 737-900 (8.15%).
What is the most popular airline from Allentown to Denver?
Based on momondo bookings for flights between Allentown and Denver, the leading airline is Allegiant Air, making up 53% of the total bookings. Other popular airlines include American Airlines with 29%, United Airlines with 11%, and Delta with 6%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $44 | Free Cancellation | Rating 5.9 3,284 reviews | |||
| PriceFrom $106 | Free Cancellation | Rating 7.2 709 reviews | |||
| PriceFrom $194 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $272 | Free Cancellation | Rating 8.0 7,983 reviews |
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsWhy 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.