$239 Cheap Flights from Harrisburg (MDT) to Lafayette (LAF)

View $239 flight on Fri, Oct 17, 2025Opens in a new window

Popular airlines from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University)

Cheap Flights from Harrisburg to Lafayette (MDT-LAF)

Prices were available within the past 7 days and start at $239 for one-way flights and $314 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 16 - Mon, Sep 22
MDT
Harrisburg
LAF
Lafayette
$314 Roundtrip, found 6 days ago
$314
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 16 from Harrisburg to Lafayette, returning Mon, Sep 22, priced at $314 found 6 days ago
United
Fri, Sep 19 - Mon, Sep 22
MDT
Harrisburg
LAF
Lafayette
$329 Roundtrip, found 6 days ago
$329
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 19 from Harrisburg to Lafayette, returning Mon, Sep 22, priced at $329 found 6 days ago
United
Tue, Sep 16 - Mon, Oct 6
MDT
Harrisburg
LAF
Lafayette
$344 Roundtrip, found 6 days ago
$344
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 16 from Harrisburg to Lafayette, returning Mon, Oct 6, priced at $344 found 6 days ago
United
Tue, Oct 7 - Thu, Oct 16
MDT
Harrisburg
LAF
Lafayette
$380 Roundtrip, found 2 days ago
$380
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 7 from Harrisburg to Lafayette, returning Thu, Oct 16, priced at $380 found 2 days ago
United
Tue, Oct 7 - Wed, Oct 15
MDT
Harrisburg
LAF
Lafayette
$381 Roundtrip, found 2 days ago
$381
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 7 from Harrisburg to Lafayette, returning Wed, Oct 15, priced at $381 found 2 days ago
United
Tue, Aug 26 - Sun, Aug 31
MDT
Harrisburg
LAF
Lafayette
$389 Roundtrip, found 12 hours ago
$389
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Aug 26 from Harrisburg to Lafayette, returning Sun, Aug 31, priced at $389 found 12 hours ago
United
Tue, Oct 7 - Fri, Oct 10
MDT
Harrisburg
LAF
Lafayette
$391 Roundtrip, found 2 days ago
$391
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 7 from Harrisburg to Lafayette, returning Fri, Oct 10, priced at $391 found 2 days ago
United
Fri, Sep 19 - Mon, Sep 22
MDT
Harrisburg
LAF
Lafayette
$399 Roundtrip, found 6 days ago
$399
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 19 from Harrisburg to Lafayette, returning Mon, Sep 22, priced at $399 found 6 days ago
United
Fri, Sep 19 - Mon, Sep 22
MDT
Harrisburg
LAF
Lafayette
$403 Roundtrip, found 6 days ago
$403
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 19 from Harrisburg to Lafayette, returning Mon, Sep 22, priced at $403 found 6 days ago
United
Sun, Sep 21 - Mon, Oct 6
MDT
Harrisburg
LAF
Lafayette
$410 Roundtrip, found 6 days ago
$410
Roundtrip
found 6 days ago
Select United flight, departing Sun, Sep 21 from Harrisburg to Lafayette, returning Mon, Oct 6, priced at $410 found 6 days ago
Flights from Harrisburg (MDT) to Lafayette (LAF)
Origin airport
Harrisburg Intl.
Destination airport
Purdue University
Airlines serving
United
Roundtrip price
$314
Distance
535 mi

Harrisburg to Lafayette Flights

The cheapest times to fly from Harrisburg to Lafayette

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 Harrisburg to Lafayette are during the month of September. You can find some of the cheapest flights from Harrisburg to Lafayette with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Harrisburg to Lafayette

Sunday is one of the best days to book for cheap flights from Harrisburg to Lafayette: 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 Harrisburg to Lafayette

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 Harrisburg to Lafayette in 2025. You can also book with separate airlines for your outbound and return journeys, from $239 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 Harrisburg to Lafayette 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 Harrisburg to Lafayette 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.

 

Frequently asked questions

How much does a flight from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University) cost?
Lock in a cheap one-way flight from $239 or cheap return flight from $314 from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University)?
Planning your trip for September can help you save, as it's the cheapest month for flights between MDT and LAF. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University)?
To find the cheapest airline that'll fly you from MDT to LAF, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University)?
You'll need to take a flight with a layover when traveling from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from MDT to LAF?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University)?
To avoid possible delays on the Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University) route, aim to travel before 3 PM. Later departures 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 Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University) last-minute?
Holding off until right before your break to book a flight from MDT to LAF often results in higher prices. While you might find some last-minute deals, there's no guarantee. Be flexible with your travel plans for a better chance of scoring a bargain.
Is it cheaper to book a MDT to LAF flight and hotel package?
You can save money by securing a MDT to LAF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred flights and accommodations, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Harrisburg Intl. Airport (MDT) to Lafayette, IN (LAF-Purdue University)?
If you reserved your MDT to LAF flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.