$300 Cheap Flights from Wilmington (ILM) to Harlingen (HRL)

View $300 flight on Tue, Jan 27, 2026Opens in a new window

Popular airlines from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL)

Cheap Flights from Wilmington to Harlingen (ILM-HRL)

Prices were available within the past 7 days and start at $300 for one-way flights and $384 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 11 - Mon, Nov 17
ILM
Wilmington
HRL
Harlingen
$384 Roundtrip, found 6 days ago
$384
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Wilmington to Harlingen, returning Mon, Nov 17, priced at $384 found 6 days ago
United
Tue, Nov 11 - Sat, Nov 15
ILM
Wilmington
HRL
Harlingen
$409 Roundtrip, found 6 days ago
$409
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Wilmington to Harlingen, returning Sat, Nov 15, priced at $409 found 6 days ago
American Airlines
Tue, Nov 11 - Tue, Nov 18
ILM
Wilmington
HRL
Harlingen
$443 Roundtrip, found 6 days ago
$443
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Nov 11 from Wilmington to Harlingen, returning Tue, Nov 18, priced at $443 found 6 days ago
American Airlines
Sat, Nov 8 - Tue, Nov 18
ILM
Wilmington
HRL
Harlingen
$448 Roundtrip, found 6 days ago
$448
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Nov 8 from Wilmington to Harlingen, returning Tue, Nov 18, priced at $448 found 6 days ago
United
Fri, Nov 14 - Mon, Nov 17
ILM
Wilmington
HRL
Harlingen
$449 Roundtrip, found 6 days ago
$449
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 14 from Wilmington to Harlingen, returning Mon, Nov 17, priced at $449 found 6 days ago

Frequently asked questions

How much does a flight from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL) cost?
Snag a cheap one-way flight from $300 or cheap return flight from $384 from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL)?
November is the most affordable month to fly from ILM to HRL. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL)?
To find the cheapest airline flying from ILM to HRL, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL)?
There are no daily nonstop flights departing from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from ILM to HRL?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, carrier 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 Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL)?
To avoid potential delays on the Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**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 Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL) last-minute?
Booking your ticket from ILM to HRL just before your trip is usually more expensive. But if you're flexible with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book an ILM to HRL flight and hotel package?
You can save money by booking an ILM to HRL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your preferred accommodations and flights, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from Wilmington Intl. Airport (ILM) to Valley Intl. Airport (HRL)?
In most cases, you can cancel or reschedule your ILM to HRL flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want further information, go to our Customer Service portal.

Travel information

Origin airport
Wilmington Intl.
Destination airport
Valley Intl.
Roundtrip price
$384
Distance
1300 mi

Book with confidence

Wilmington to Harlingen Flights

The cheapest times to fly from Wilmington to Harlingen

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

 

The best time to book a flight from Wilmington to Harlingen

Sunday is one of the best days to book for cheap flights from Wilmington to Harlingen: 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 Wilmington to Harlingen

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 Wilmington to Harlingen in 2025. You can also book with separate airlines for your outbound and return journeys, from $300 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 Wilmington to Harlingen 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 Wilmington to Harlingen 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.

 

Wilmington to Harlingen Flights

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*Available to One Key members.