$985 Cheap Flights from Adelaide (ADL) to Harrisburg (MDT)

View $985 flight on Wed, Feb 4, 2026Opens in a new window

Popular airlines from Adelaide, SA Airport (ADL) to Harrisburg Intl. Airport (MDT)

Cheap Flights from Adelaide to Harrisburg (ADL-MDT)

Prices were available within the past 7 days and start at $985 for one-way flights and $1,792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Wed, Oct 29 - Mon, Nov 10
ADL
Adelaide
MDT
Harrisburg
$1,792 Roundtrip, found 4 days ago
$1,792
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Wed, Oct 29 from Adelaide to Harrisburg, returning Mon, Nov 10, priced at $1,792 found 4 days ago
Qatar Airways
Tue, Oct 28 - Mon, Nov 10
ADL
Adelaide
MDT
Harrisburg
$1,803 Roundtrip, found 4 days ago
$1,803
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Tue, Oct 28 from Adelaide to Harrisburg, returning Mon, Nov 10, priced at $1,803 found 4 days ago
Qatar Airways
Wed, Oct 29 - Sat, Nov 8
ADL
Adelaide
MDT
Harrisburg
$1,809 Roundtrip, found 4 days ago
$1,809
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Wed, Oct 29 from Adelaide to Harrisburg, returning Sat, Nov 8, priced at $1,809 found 4 days ago
Qatar Airways
Tue, Oct 28 - Sat, Nov 8
ADL
Adelaide
MDT
Harrisburg
$1,820 Roundtrip, found 4 days ago
$1,820
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Tue, Oct 28 from Adelaide to Harrisburg, returning Sat, Nov 8, priced at $1,820 found 4 days ago
Qatar Airways
Wed, Oct 29 - Fri, Nov 7
ADL
Adelaide
MDT
Harrisburg
$1,822 Roundtrip, found 4 days ago
$1,822
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Wed, Oct 29 from Adelaide to Harrisburg, returning Fri, Nov 7, priced at $1,822 found 4 days ago
Qatar Airways
Tue, Oct 28 - Fri, Nov 7
ADL
Adelaide
MDT
Harrisburg
$1,833 Roundtrip, found 4 days ago
$1,833
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Tue, Oct 28 from Adelaide to Harrisburg, returning Fri, Nov 7, priced at $1,833 found 4 days ago
Virgin Australia
Thu, Oct 30 - Fri, Nov 7
ADL
Adelaide
MDT
Harrisburg
$2,065 Roundtrip, found 4 days ago
$2,065
Roundtrip
found 4 days ago
Select Virgin Australia flight, departing Thu, Oct 30 from Adelaide to Harrisburg, returning Fri, Nov 7, priced at $2,065 found 4 days ago
Qantas Airways
Thu, Oct 30 - Fri, Nov 7
ADL
Adelaide
MDT
Harrisburg
$2,077 Roundtrip, found 4 days ago
$2,077
Roundtrip
found 4 days ago
Select Qantas Airways flight, departing Thu, Oct 30 from Adelaide to Harrisburg, returning Fri, Nov 7, priced at $2,077 found 4 days ago
Jetstar
Wed, Oct 29 - Wed, Nov 5
ADL
Adelaide
MDT
Harrisburg
$2,120 Roundtrip, found 4 days ago
$2,120
Roundtrip
found 4 days ago
Select Jetstar flight, departing Wed, Oct 29 from Adelaide to Harrisburg, returning Wed, Nov 5, priced at $2,120 found 4 days ago
American Airlines
Thu, Oct 30 - Fri, Nov 7
ADL
Adelaide
MDT
Harrisburg
$2,664 Roundtrip, found 4 days ago
$2,664
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Oct 30 from Adelaide to Harrisburg, returning Fri, Nov 7, priced at $2,664 found 4 days ago

Frequently asked questions

How much does a flight from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT) cost?
Snag a cheap one-way flight from $985 or cheap return flight from $1,792 from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT)?
October is the cheapest month to fly from ADL to MDT. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ADL to MDT flight.
How many flights per day from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT)?
Nonstop flights from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ADL to MDT?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT)?
To avoid potential delays on the Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT) last-minute?
Booking your plane ticket from ADL to MDT right before your getaway is typically more expensive. But if you're flexible with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book an ADL to MDT flight and hotel package?
You'll typically save money by booking an ADL to MDT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your ideal accommodations and flights, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Adelaide Airport (ADL) to Harrisburg Intl. Airport (MDT)?
Typically, it's possible to cancel or reschedule your ADL to MDT flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Adelaide
Destination airport
Harrisburg Intl.
Roundtrip price
$1,791
Distance
10483 mi

Book with confidence

Adelaide to Harrisburg Flights

The cheapest times to fly from Adelaide to Harrisburg

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Adelaide to Harrisburg are during the month of October. You can find some of the cheapest flights from Adelaide to Harrisburg with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Adelaide to Harrisburg

Sunday is one of the best days to book for cheap flights from Adelaide to Harrisburg: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Adelaide to Harrisburg

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Adelaide to Harrisburg in 2025. You can also book with separate airlines for your outbound and return journeys, from $985 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Adelaide to Harrisburg flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Adelaide to Harrisburg airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Adelaide to Harrisburg Flights

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*Available to One Key members.