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$108+ Cheap flights from Harrisburg to Denver (MDT - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Harrisburg to Denver Intl are usually found in February or May, booked 79 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from Harrisburg to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$174
(Frontier)

One-way from

$108
(Frontier)

Popular in

March

Cheapest in

February

Average price

$419
From Harrisburg to Denver Intl
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One-way flight from Harrisburg to Denver Intl
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Harrisburg to Denver

Cheapest flights from Harrisburg to Denver
Explore the most affordable flight options available from Harrisburg to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:07 amMDT - DEN
1 stop14h 06mFrontier
Sun 10/512:04 amDEN - MDT
1 stop7h 58mFrontier
Deal found 9/10$174
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:07 amMDT - DEN
1 stop14h 06mFrontier
Sun 10/52:05 pmDEN - MDT
2 stops17h 57mFrontier
Deal found 9/10$245
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:07 amMDT - DEN
1 stop8h 48mFrontier
Sun 9/2812:16 pmDEN - MDT
2 stops19h 46mFrontier
Deal found 9/10$259
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:20 amMDT - DEN
1 stop9h 38mAmerican Airlines
Sun 11/237:00 amDEN - MDT
1 stop5h 29mAmerican Airlines
Deal found 9/11$268
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:30 amMDT - DEN
1 stop6h 05mUnited Airlines
Mon 11/2411:59 pmDEN - MDT
1 stop7h 36mUnited Airlines
Deal found 9/10$269
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:00 amMDT - DEN
2 stops8h 31mAmerican Airlines
Wed 11/122:49 pmDEN - MDT
1 stop6h 07mAmerican Airlines
Deal found 9/10$274
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/108:31 pmMDT - DEN
1 stop14h 29mFrontier
Thu 10/1612:36 amDEN - MDT
1 stop15h 00mFrontier
Deal found 9/10$276
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/259:22 pmMDT - DEN
2 stops36h 50mMultiple Airlines
Thu 10/3012:16 amDEN - MDT
1 stop12h 04mMultiple Airlines
Deal found 9/10$277
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:40 amMDT - DEN
2 stops8h 03mAmerican Airlines
Sat 12/68:10 amDEN - MDT
2 stops8h 37mAmerican Airlines
Deal found 9/10$279

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harrisburg to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Harrisburg to Denver that are best for you.

Fly from

Harrisburg

Fly to

Denver

Route

Depart

Return

Price

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Fri 10/3

11:07 am-11:13 pm

1 stop14h 06m

Denver Intl

Sun 10/5

12:04 am-10:02 am

1 stop7h 58m

$174

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Thu 11/20

6:20 am-1:58 pm

1 stop9h 38m

Denver Intl

Sun 11/23

7:00 am-2:29 pm

1 stop5h 29m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Sat 10/25

6:10 am-10:11 am

1 stop6h 01m

Denver Intl

Fri 10/31

3:45 pm-11:00 pm

1 stop5h 15m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Wed 10/15

6:30 am-10:35 am

1 stop6h 05m

Denver Intl

Mon 10/20

11:59 pm-9:29 am

1 stop7h 30m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Thu 12/11

5:00 am-9:21 am

1 stop6h 21m

Denver Intl

Wed 12/17

6:21 am-3:30 pm

1 stop7h 09m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Thu 11/20

6:30 am-10:35 am

1 stop6h 05m

Denver Intl

Mon 11/24

11:59 pm-9:35 am

1 stop7h 36m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Fri 10/3

4:45 pm-10:02 pm

1 stop7h 17m

Denver Intl

Mon 10/6

11:59 pm-10:56 am

1 stop8h 57m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Fri 10/3

10:25 am-4:35 pm

1 stop8h 10m

Denver Intl

Tue 10/7

11:59 pm-9:29 am

1 stop7h 30m

$269

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Wed 12/3

5:40 am-12:52 pm

1 stop9h 12m

Denver Intl

Sat 12/6

12:26 pm-10:15 pm

2 stops7h 49m

$274

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Thu 9/25

6:15 am-10:17 am

1 stop6h 02m

Denver Intl

Sat 10/4

11:15 am-7:57 pm

1 stop6h 42m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results
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Best time to book a flight from Harrisburg to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Harrisburg with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Harrisburg to Denver

How far ahead should I book a flight from Harrisburg to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Harrisburg to Denver. Price data was last updated on August 29, 2025.

The best time to book flights from Harrisburg to Denver is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Harrisburg to Denver?

Currently, October is the cheapest month in which you can book a flight from Harrisburg to Denver (average of $197). Flying from Harrisburg to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MDT to DEN?

Find hourly flight availability from Harrisburg to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Harrisburg to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 14% on airfare.

What is the cheapest day to fly from Harrisburg to Denver?

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Denver. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Harrisburg to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Harrisburg to Denver?

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Harrisburg to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,177 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Harrisburg to Denver?

    There are many flights that can get you from Harrisburg to Denver in 6h 01m. Fly via Frontier, American Airlines, or Delta to get the fastest option. The distance between Harrisburg and Denver is about 1470 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Harrisburg to Denver round-trip?

    Our cheapest airline available from Harrisburg to Denver is Frontier. Our recent data shows that you can find tickets from as low as $140 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $268 and $268 round-trip. You may be able to fly from Harrisburg to Denver for 66% less than the average price by searching for these airlines.

  • Can I find deals for flights from Harrisburg to Denver that include hotel bookings?

    Yes. In addition to deals on Harrisburg to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harrisburg to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Denver.

  • Can I find deals for business class flights from Harrisburg to Denver?

    Yes. Cheapflights offers flight deals from Harrisburg to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Harrisburg to Denver?

    Currently, October is the cheapest month in which you can book a flight from Harrisburg to Denver (average of $197). Flying from Harrisburg to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Harrisburg to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Philadelphia to Hayden flights
Reagan-National to Montrose flights
LaGuardia to Durango flights
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Dulles Intl to Hayden flights
Reagan-National to Aspen flights
Reagan-National to Durango flights
Philadelphia to Colorado Springs flights
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Dulles Intl to Grand Junction flights
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Top 4 airlines flying from Harrisburg to Denver

Discover the top 4 airlines that operate flights from Harrisburg to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$268Average$355FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$418FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$446FlexibilityNo cancel feeOn-time69%

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