$256 Cheap Flights from Harlingen (HRL) to Kailua-Kona (KOA)

View $256 flight on Wed, Feb 25, 2026Opens in a new window

Popular airlines from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA)

Cheap Flights from Harlingen to Kailua-Kona (HRL-KOA)

Prices were available within the past 7 days and start at $256 for one-way flights and $511 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Feb 25 - Sun, Mar 1
HRL
Harlingen
KOA
Kona Coast
$511 Roundtrip, found 5 hours ago
$511
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Feb 25 from Harlingen to Kona Coast, returning Sun, Mar 1, priced at $511 found 5 hours ago
United
Sat, Feb 28 - Fri, Mar 6
HRL
Harlingen
KOA
Kona Coast
$551 Roundtrip, found 3 hours ago
$551
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Feb 28 from Harlingen to Kona Coast, returning Fri, Mar 6, priced at $551 found 3 hours ago
United
Wed, Apr 22 - Tue, Apr 28
HRL
Harlingen
KOA
Kona Coast
$554 Roundtrip, found 6 days ago
$554
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 22 from Harlingen to Kona Coast, returning Tue, Apr 28, priced at $554 found 6 days ago
United
Sat, Feb 28 - Fri, Mar 6
HRL
Harlingen
KOA
Kona Coast
$576 Roundtrip, found 3 hours ago
$576
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Feb 28 from Harlingen to Kona Coast, returning Fri, Mar 6, priced at $576 found 3 hours ago
United
Thu, Aug 27 - Mon, Aug 31
HRL
Harlingen
KOA
Kona Coast
$576 Roundtrip, found 6 days ago
$576
Roundtrip
found 6 days ago
Select United flight, departing Thu, Aug 27 from Harlingen to Kona Coast, returning Mon, Aug 31, priced at $576 found 6 days ago
United
Fri, Apr 24 - Tue, Apr 28
HRL
Harlingen
KOA
Kona Coast
$609 Roundtrip, found 6 days ago
$609
Roundtrip
found 6 days ago
Select United flight, departing Fri, Apr 24 from Harlingen to Kona Coast, returning Tue, Apr 28, priced at $609 found 6 days ago
United
Sat, Feb 28 - Fri, Mar 6
HRL
Harlingen
KOA
Kona Coast
$612 Roundtrip, found 3 hours ago
$612
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Feb 28 from Harlingen to Kona Coast, returning Fri, Mar 6, priced at $612 found 3 hours ago
United
Sat, Feb 28 - Fri, Mar 6
HRL
Harlingen
KOA
Kona Coast
$614 Roundtrip, found 3 hours ago
$614
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Feb 28 from Harlingen to Kona Coast, returning Fri, Mar 6, priced at $614 found 3 hours ago
United
Mon, Aug 24 - Fri, Aug 28
HRL
Harlingen
KOA
Kona Coast
$621 Roundtrip, found 6 days ago
$621
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 24 from Harlingen to Kona Coast, returning Fri, Aug 28, priced at $621 found 6 days ago
Southwest Airlines
Wed, Nov 26 - Sun, Nov 30
HRL
Harlingen
KOA
Kona Coast
$1,008 Roundtrip, found 2 days ago
$1,008
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Nov 26 from Harlingen to Kona Coast, returning Sun, Nov 30, priced at $1,008 found 2 days ago
Flights from Harlingen (HRL) to Kailua-Kona (KOA)
Origin airport
Valley Intl.
Destination airport
Kona Intl.
Airlines serving
American Airlines, United
Roundtrip price
$511
Distance
3710 mi

Harlingen to Kailua-Kona Flights

The cheapest times to fly from Harlingen to Kailua-Kona

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

 

The best time to book a flight from Harlingen to Kailua-Kona

Sunday is one of the best days to book for cheap flights from Harlingen to Kailua-Kona: 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 Harlingen to Kailua-Kona

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 Harlingen to Kailua-Kona in 2025. You can also book with separate airlines for your outbound and return journeys, from $256 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 Harlingen to Kailua-Kona 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 Harlingen to Kailua-Kona 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 Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA) cost?
Lock in a cheap one-way flight from $256 or cheap return flight from $511 from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA)?
Flying in February is a great way to save, as it's the cheapest month for flights between HRL and KOA. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest HRL to KOA flight.
How many flights per day from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA)?
There are no daily direct flights available from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from HRL to KOA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA)?
Select a flight from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be 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 Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA) last-minute?
Last-minute bookings from HRL to KOA are generally more expensive. For the lowest prices, start looking for flights well in advance. That being said, if you're flexible with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a HRL to KOA flight and hotel package?
Securing a HRL to KOA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Valley Intl. Airport (HRL) to Kona Intl. Airport (KOA)?
Typically, it's possible to cancel or reschedule your HRL to KOA flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.