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WN 3644 Austin to Harlingen Flight Status

Southwest Airlines Flight WN3644 from Austin Bergstrom International Airport AUS to Harlingen Valley International Airport HRL is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on September 29th, 2025.
Check the table below for WN3644's most recent flight history:

WN 3644 Flight Status & Schedule

Date Departure Arrival Status
Sep 29 10:20 11:12
Landed
Track >
Sep 26 10:23 11:12
Landed
Track >
Sep 25 10:18 11:17
Landed
Track >
Sep 22 10:20 11:06
Landed
Track >
Sep 19 10:15 10:58
Landed
Track >

Southwest Airlines WN 3644 Austin to Harlingen Flight Information

Southwest Airlines Flight WN3644 connects Austin, United States to Harlingen, United States, taking off from Austin Bergstrom International Airport AUS and landing at Harlingen Valley International Airport HRL.

How long is the WN3644 flight from Austin to Harlingen?

The average flight time from Austin to Harlingen is 47 minutes. The flight distance is 441 km / 274 miles and the average flight speed is 563 km/h / 350 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3644 Austin to Harlingen?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3644 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN3644 flight?

The latest flight took off on Monday, September 29th, 2025 with the flight status being Landed on 11:12.

How else can the flight WN3644 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3644, WN 3644, SWA 3644.

How often is flight WN3644 delayed?

On average, 10% of all WN3644 flights are delayed. The average delay is 10 minutes.

Can I get compensation for my delayed or cancelled WN3644 flight or baggage issues?

If your WN3644 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our WN3644 Flight Tracker above for more details.

WN3644 and Austin AUS to Harlingen HRL Flights

Other flights departing from Austin AUS: WN606, WN727, WN682, K9194

Other flights arriving at Harlingen HRL: WN2907, WN1271, WN4526, AA5568

All flights connecting Austin AUS to Harlingen HRL.

WN3644 Southwest Airlines Flight: Austin to Harlingen Route Map

WN3644 Southwest Airlines Flight Map: Austin to Harlingen
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.