Southwest AirlinesWN
Flights WN57 16:55 Fr
live
Direct flights from Denver (DEN) to Harlingen (HRL): 1 nonstop departure observed each week across 1 airline. The nonstop covers 1,650 km, an estimated 2 hours 37 minutes in the air. Measured by Pro Flight Search from live flight boards at Denver and Harlingen. Updated 14 November 2026 at 06:27 UTC.
DEN
Denver
disrupted · +221
HRL
Harlingen
tracking
1,650 km · ~2h 37m est.
Disrupted · 1 airline · 1x weekly · nonstop
0 / 100
route health from live DEN and HRL delay boards
Flight time~2h 37mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysAirports right now
live boardsnext sweep in 120s
How the Denver to Harlingen route actually runs
Pro Flight Search records official board updates for nonstop DEN to HRL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search: Denver (DEN) to Harlingen (HRL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/DEN-HRL
DEN to HRL questions
Is DEN–HRL running on time right now?
High disruption likely. The departure side at DEN is the weaker end, route health score 0/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from DEN to HRL?
Great-circle distance is 1,650 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 146–171 min gate-to-gate on this route.
How often does DEN–HRL fly?
Southwest Airlines runs the route with about 1 flight a week (fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at DEN and arrival-side delay at HRL, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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