Direct (nonstop) flights from Houston to Harlingen
1 airline flys nonstop from George Bush Intcntl Houston (IAH) to Valley International (HRL). It's 295 miles (475 km), about 1h 24m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 24, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Houston to Harlingen with one stop · direct emits 55 kg CO₂ per passenger
Looking for the return flight?
HRL → IAH: Flights from Harlingen to HoustonOther direct flights from Houston
Direct flights from Harlingen (HRL)
Frequently Asked Questions
How long is the direct flight from Houston to Harlingen?
A nonstop flight from Houston (IAH) to Harlingen (HRL) takes approximately 1 hours and 24 minutes. The distance is 295 miles (475 km).
Which airlines fly nonstop from Houston to Harlingen?
Just United Airlines.
Is there a nonstop flight from Houston to Harlingen?
Yes. 1 airline: United Airlines.
How far is Houston from Harlingen?
The flight distance from Houston to Harlingen is 295 miles (475 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Houston to Harlingen?
At 1h 24m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Houston to Harlingen?
Roughly 55 kg CO2 per passenger one-way. That's about the same as driving 275 km.
Is the return flight from Harlingen to Houston also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Houston to Harlingen?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at George Bush Intcntl Houston for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.