DEN - ABE

$102 Find Cheap Flights from Denver to Allentown

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Allentown departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Allentown

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Allentown, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Allentown, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Denver to Allentown (DEN-ABE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Allentown that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Denver to Allentown

KAYAK's recommended round-trip deals from the most popular airlines that fly from Denver to Allentown.
Discover the best prices for you by selecting your travel dates on KAYAK.
Allegiant Air Logo
9:51 am - 3:13 pmDEN-ABE
3h 22mnonstop
Allegiant Air Logo
7:00 am - 9:01 amABE-DEN
4h 01mnonstop
$166Allegiant Air
Find Deal
Sun, Jun 1 - Thu, Jun 5
Allegiant Air Logo
9:51 am - 3:13 pmDEN-ABE
3h 22mnonstop
Allegiant Air Logo
7:00 am - 9:01 amABE-DEN
4h 01mnonstop
$211Allegiant Air
Find Deal
Sun, Jun 1 - Sun, Jun 8
 Logo
9:51 am - 3:13 pmDEN-ABE
3h 22mnonstop
 Logo
1:54 pm - 4:01 pmABE-DEN
28h 07m3 stops
Sun, Jun 1 - Thu, Jun 5
 Logo
9:51 am - 3:13 pmDEN-ABE
3h 22mnonstop
 Logo
10:08 pm - 5:01 pmABE-DEN
20h 53m3 stops
Sun, Jun 1 - Sun, Jun 8
Delta Logo
2:59 pm - 11:27 pmDEN-ABE
6h 28m1 stop
Delta Logo
6:30 am - 12:27 pmABE-DEN
7h 57m1 stop
$384Delta
Find Deal
Tue, Aug 12 - Sun, Aug 17
American Airlines Logo
5:00 am - 5:58 pmDEN-ABE
10h 58m2 stops
American Airlines Logo
6:00 am - 12:57 pmABE-DEN
8h 57m1 stop
$389American Airlines
Find Deal
Tue, Aug 12 - Sun, Aug 17
American Airlines Logo
5:00 am - 5:58 pmDEN-ABE
10h 58m2 stops
American Airlines Logo
1:56 pm - 9:55 pmABE-DEN
9h 59m2 stops
$394American Airlines
Find Deal
Tue, Aug 12 - Sun, Aug 17
Delta Logo
7:00 am - 5:06 pmDEN-ABE
8h 06m1 stop
Delta Logo
6:00 am - 11:09 amABE-DEN
7h 09m1 stop
$409Delta
Find Deal
Thu, Jun 5 - Tue, Jun 10
United Airlines Logo
7:50 am - 5:00 pmDEN-ABE
7h 10m1 stop
United Airlines Logo
5:35 pm - 11:22 pmABE-DEN
7h 47m1 stop
$488United Airlines
Find Deal
Sat, Jul 5 - Mon, Jul 14
United Airlines Logo
7:07 pm - 9:55 pmDEN-ABE
24h 48m1 stop
United Airlines Logo
5:35 pm - 6:50 amABE-DEN
15h 15m2 stops
$586United Airlines
Find Deal
Thu, Jun 5 - Tue, Jun 10
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KAYAK's insights & trends for Denver to Allentown flights

Get data-powered insights and trends into flights from Denver to Allentown to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Allentown?

The average price of all round-trip flights from Denver to Allentown clicked on KAYAK for each day over the last 12 months.

When flying from Denver to Allentown, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Sundays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Denver to Allentown?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Allentown, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Allentown is October, where tickets cost $222 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $488 and $399 respectively.

How far in advance should I book a flight from Denver to Allentown?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Allentown, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Allentown, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonMarch
High seasonJuly
Cheapest flight$102
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Denver to Allentown

When to book flights from Denver to Allentown

Are your dates flexible? Find out the best times to travel from Denver to Allentown based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Allentown

  • How many flights are there between Denver and Allentown per day?

    There is a maximum of 1 nonstop flight a day that takes off from Denver and lands in Allentown, with an average flight time of 3h 22m. The most common departure time is 9:00 am and most flights take off in the morning. Each week, there are 2 flights.

  • What is the cheapest flight from Denver to Allentown?

    In the last 3 days, the lowest price for a flight from Denver to Allentown was $102 for a one-way ticket and $166 for a round-trip.

  • Do I need a passport to fly between Denver and Allentown?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Denver to Allentown?

    When flying out of Denver you will be using Denver Intl. You will be landing at Allentown, also known as Allentown-Bethlehem.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Allentown?

    Only American Airlines offers inflight Wi-Fi service on the Denver to Allentown flight route.

  • Which aircraft models fly most regularly from Denver to Allentown?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Denver to Allentown flight route.

  • On which days can I fly direct from Denver to Allentown?

    You can catch a nonstop flight from Denver to Allentown on on Thursday, and Sunday.

  • Which is the best airline for flights from Denver to Allentown, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Allentown are Delta and United Airlines. With an average price for the route of $427 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $392 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Allentown?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Allentown.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Allentown?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Allentown from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Allentown?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Allentown with an airline and back to Denver with another airline. Booking your flights between Denver and ABE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Allentown?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Allentown from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Allentown

  • Looking for a cheap flight? 25% of our users found flights on this route for $102 or less one-way and $164 or less round-trip.

Prefer to fly direct from Denver to Allentown?

Find which airlines fly direct from Denver Intl Airport to Allentown-Bethlehem Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Allentown-Bethlehem

Thursday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Allentown-Bethlehem to Denver Intl

Thursday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights
See more direct flights

Top 5 airlines serving from Denver to Allentown

 
See real verified KAYAK customer reviews for airlines flying from Denver to Allentown. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Allentown? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7934 reviews
8.5Crew
7.9Entertainment
8.2Boarding
7.9Comfort
7.3Food
Airline reviews

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

6.0 GoodTina, Apr 2025MSP - CLT
Read more Delta reviews

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

Plane still had screens for watching movies. Good selection too.

There was no air on the plane and it was very hot.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

Any sort of gluten free snack option would be nice

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

It would have been better if I could have had my flight on time. It was delayed for 5 hours. Caused me to not be able to fulfill my promise to my granddaughters. Other than that it was a good trip.

Everything went as planned. Crew was great. Seats were still not that comfortable.

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

The seats were extremely hard and uncomfortable, even for a budget airline.

Boarding was very well executed. Got my bag right away.

Overall experience good. There was no food and seats were not terribly comfortable.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

There were a lot of issues every step of the process. Check in, security, boarding, and dealing with luggage. Plus the money you think you are saving you end up using in hidden fees.

The flight attendant was arguing with a passenger before takeoff. The passenger was frustrated but the flight attendant should have handled it with grace, but instead she was nasty and rude. The seats were comfortable and the flight was uneventful. I wish we didn’t have to pay for drinks or snacks but that’s what you get with a budget airline.

Booked two aisle seats and were switched to an aisle and middle. Not happy.

I fly Frontier often and generally don't have any issues. For some reason, the Denver to Houston's George Bush Intercontinental (IAH) flight always needs to wait on the tarmac in Houston because a gate is not available after landing. I've been stuck for as little as 15 minutes and as much as a little over an hour. I know only fly the Frontier Denver to IAH route when there is not an available flight to Houston Hobby (HOU).

Everything you need to know for your flight from Denver to Allentown

Information on your arrival and departure airports

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