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Flights from Denver to Harlingen
There are no direct flights from Denver to Harlingen. The fastest way is one stop via Austin or Houston, about 3h 38m door to door (51 connections a week on current schedules).
No direct flights · 3 connection options From 3h 38m
Denver to Harlingen at a glance
Fastest journey3h 38mVia Austin, on current schedules
Nonstop flightsNoneConnect via Austin or Houston
Best ways to fly from Denver to Harlingen
Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.
1Search
DEN Austin (AUS) HRL
Leg 1: Frontier Airlines, Southwest Airlines, United Airlines · Leg 2: Southwest Airlines
Fri05:30 DEN08:25 AUS0h 50m connection09:15 AUS10:08 HRLSouthwest Airlines
2Search
DEN Houston (HOU) HRL
Leg 1: Frontier Airlines, Southwest Airlines · Leg 2: Southwest Airlines
Sat06:15 DEN09:22 HOU1h 38m connection11:00 HOU11:44 HRLSouthwest Airlines
3Search
DEN Dallas (DAL) HRL
Leg 1: Southwest Airlines · Leg 2: Southwest Airlines
Sat08:45 DEN11:26 DAL2h 19m connection13:45 DAL14:56 HRLSouthwest Airlines
Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.
Good to know
- Distance
- 1,651 km1,025 miles
- Journey time
- 3h 38mon current schedules
- Time difference
- +1hHarlingen vs Denver
- Currency in Harlingen
- USD
- Airports
- DEN → HRL
Flights from Denver to Harlingen: questions answered
Are there direct flights from Denver to Harlingen?
No. There is no nonstop service, so you will connect, most easily in Austin, Houston and Dallas. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from Denver to Harlingen?
With one connection the journey usually takes around 3h 38m, depending on the layover. The straight-line distance is 1,651 km.
Where do you change planes between Denver and Harlingen?
The best connecting points are Austin (AUS), Houston (HOU) and Dallas (DAL). Frontier Airlines flies both legs via Austin, so you can book it as one ticket.
Which airports serve Denver and Harlingen?
Denver: Denver International Airport (DEN). Harlingen: Valley International Airport (HRL).
What is the time difference between Denver and Harlingen?
Harlingen is 1 hour ahead of Denver.





