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Flights from Allentown to Denver

Book direct flights from Allentown to Denver: One way flights from $96, round trip flights from $176. Find flight deals for the next 3 months below.

      • Cheapest nonstop
        ABE 2:54 PM
        4h 2m
        Nonstop
        DEN 4:56 PM
        Allentown - Denver | Fri, Aug 14 | Allegiant Air
        DEN 5:46 PM
        3h 28m
        Nonstop
        ABE 11:14 PM
        Denver - Allentown | Mon, Aug 17 | Allegiant Air
        $176 $475
        63% off
        63% off
        $475 $176
      • ABE 2:54 PM
        4h 2m
        Nonstop
        DEN 4:56 PM
        Allentown - Denver | Mon, Aug 17 | Allegiant Air
        DEN 9:42 AM
        3h 29m
        Nonstop
        ABE 3:11 PM
        Denver - Allentown | Fri, Aug 21 | Allegiant Air
        $200 $475
        57% off
        57% off
        $475 $200
      • ABE 2:54 PM
        4h 2m
        Nonstop
        DEN 4:56 PM
        Allentown - Denver | Mon, Aug 10 | Allegiant Air
        DEN 5:46 PM
        3h 28m
        Nonstop
        ABE 11:14 PM
        Denver - Allentown | Mon, Aug 17 | Allegiant Air
        $240 $475
        49% off
        49% off
        $475 $240
      • ABE 2:57 PM
        4h
        Nonstop
        DEN 4:57 PM
        Allentown - Denver | Fri, Jul 31 | Allegiant Air
        DEN 5:47 PM
        3h 28m
        Nonstop
        ABE 11:15 PM
        Denver - Allentown | Mon, Aug 3 | Allegiant Air
        $251
        47% off
        $475 $251
      • ABE 7:30 AM
        4h
        Nonstop
        DEN 9:30 AM
        Allentown - Denver | Fri, Jul 24 | Allegiant Air
        DEN 5:47 PM
        3h 28m
        Nonstop
        ABE 11:15 PM
        Denver - Allentown | Fri, Jul 31 | Allegiant Air
        $328
        31% off
        $475 $328
      • ABE 7:30 AM
        4h
        Nonstop
        DEN 9:30 AM
        Allentown - Denver | Mon, Jul 13 | Allegiant Air
        DEN 10:20 AM
        3h 28m
        Nonstop
        ABE 3:48 PM
        Denver - Allentown | Mon, Jul 20 | Allegiant Air
        $330
        31% off
        $475 $330
      • ABE 6:08 PM
        8h 28m
        1 stop
        DEN 12:36 AM
        Allentown - Denver | Mon, Aug 10 | Delta Air Lines
        DEN 7:19 AM
        8h 4m
        1 stop
        ABE 5:23 PM
        Denver - Allentown | Fri, Aug 14 | Delta Air Lines
        $263
        45% off
        $475 $263
      • ABE 1:10 PM
        6h 47m
        1 stop
        DEN 5:57 PM
        Allentown - Denver | Sat, Aug 22 | Delta Air Lines
        DEN 7:19 AM
        8h
        1 stop
        ABE 5:19 PM
        Denver - Allentown | Fri, Aug 28 | Delta Air Lines
        $263
        45% off
        $475 $263
      • ABE 2:57 PM
        4h
        Nonstop
        DEN 4:57 PM
        Allentown - Denver | Mon, Aug 3 | Allegiant Air
        DEN 1:20 PM
        8h 5m
        1 stop
        ABE 11:25 PM
        Denver - Allentown | Thu, Aug 6 | American Airlines
        $333
        30% off
        $475 $333
      • ABE 6:08 PM
        8h 28m
        1 stop
        DEN 12:36 AM
        Allentown - Denver | Fri, Aug 14 | Delta Air Lines
        DEN 5:46 PM
        3h 28m
        Nonstop
        ABE 11:14 PM
        Denver - Allentown | Mon, Aug 17 | Allegiant Air
        $337
        28% off
        $475 $337
      • ABE 1:00 PM
        17h 25m
        1 stop
        DEN 2:00 PM
        Allentown - Denver | Tue, Jul 14 | Normal Airline
        DEN 3:00 PM
        6h
        Nonstop
        ABE 4:00 PM
        Denver - Allentown | Thu, Jul 16 | Normal Airline
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      • Cheapest nonstop
        ABE 7:30 AM
        4h
        Nonstop
        DEN 9:30 AM
        Allentown - Denver | Fri, Jul 24 | Allegiant Air
        $96 $240
        60% off
        60% off
        $240 $96
      • ABE 2:57 PM
        4h
        Nonstop
        DEN 4:57 PM
        Allentown - Denver | Mon, Aug 3 | Allegiant Air
        $105 $240
        56% off
        56% off
        $240 $105
      • ABE 7:30 AM
        4h
        Nonstop
        DEN 9:30 AM
        Allentown - Denver | Mon, Jul 27 | Allegiant Air
        $120 $240
        50% off
        50% off
        $240 $120
      • ABE 2:54 PM
        4h 2m
        Nonstop
        DEN 4:56 PM
        Allentown - Denver | Mon, Aug 10 | Allegiant Air
        $132
        45% off
        $240 $132
      • ABE 7:00 AM
        3h 52m
        Nonstop
        DEN 8:52 AM
        Allentown - Denver | Fri, Aug 21 | Allegiant Air
        $156
        35% off
        $240 $156
      • ABE 2:57 PM
        4h
        Nonstop
        DEN 4:57 PM
        Allentown - Denver | Fri, Jul 31 | Allegiant Air
        $170
        28% off
        $240 $170
      • ABE 6:16 AM
        7h 9m
        1 stop
        DEN 11:25 AM
        Allentown - Denver | Mon, Aug 10 | Delta Air Lines
        $121
        50% off
        $240 $121
      • ABE 6:08 PM
        6h 54m
        1 stop
        DEN 11:02 PM
        Allentown - Denver | Tue, Aug 11 | Delta Air Lines
        $121
        50% off
        $240 $121
      • ABE 2:28 PM
        10h 32m
        1 stop
        DEN 11:00 PM
        Allentown - Denver | Thu, Aug 20 | Allegiant Air
        $138
        43% off
        $240 $138
      • ABE 5:36 PM
        8h 18m
        1 stop
        DEN 11:54 PM
        Allentown - Denver | Tue, Aug 11 | United Airlines
        $161
        33% off
        $240 $161
      • ABE 1:00 PM
        17h 25m
        1 stop
        DEN 2:00 PM
        Allentown - Denver | Tue, Jul 14 | Normal Airline
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Displayed flight fares from Allentown to Denver are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Find cheap airlines flights from Allentown to Denver

You can choose from 1 airlines that fly from Allentown to Denver, including Allegiant Air, Allegiant Air has lowest fares on this route.
Allegiant Air logo Allegiant Air
Airlines are determined based on actual purchased flight tickets from Allentown to Denver according to previous 12 months data from Trip.com.

Flight Info | Allentown to Denver

The distance between Allentown and Denver is approximately 2,470.14 km. It takes around 4 hours on average to fly from Allentown to Denver. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$96
Cheapest round-trip ticket price$176
Off-season for travelOctober
Peak season for travelJuly
Flight distance2,470.14 km
Average flight time4 hours
Popular airlineAllegiant Air
Flight statistics for the Allentown–Denver route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Allentown to Denver (ABE-DEN)?

    Based on Trip.com data, Allegiant Air offers one-way fares as low as $96 on Cheapest nonstop routes (e.g. ABE to DEN on Fri, Jul 24), while Allegiant Air offers Cheapest nonstop round-trips from $176 departing on Fri, Aug 14 and returning on Mon, Aug 17.
  • At the moment, you can catch a nonstop flight from Allentown to Denver with the following airlines, including: Allegiant Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 4 hours to fly from Allentown (ABE) to Denver (DEN).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Allentown to Denver is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 2 flight per week flying from Allentown to Denver. You can check the weekly schedule for popular airlines on this route below: Allegiant Air: S/-/-/-/T/-/- -- G4163 (07:31)
  • To find best deals on flights from Allentown to Denver, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Jul 24, with one-way flights priced at just $96.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Allegiant Air.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Denver travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Allentown to Denver is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Allentown to Denver on July 24, 2026 with Allegiant Air, with prices starting at $96.
  • You can land at any one of the following hubs in Denver, with Lehigh Valley International Airport to Denver International Airport (ABE-DEN) is by far the most common option on this route: Denver International Airport (DEN) Rocky Mountain Metropolitan Airport (BJC).
  • The time difference between Denver and Allentown is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.