United AirlinesUA
Flights UA257 varies Su
live
Direct flights from Kralendijk (BON) to Houston (IAH): 1 nonstop departure observed each week across 1 airline. The median arrival is 8 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 3,424 km, an estimated 4 hours 53 minutes in the air. Measured by Pro Flight Search from live flight boards at Kralendijk and Houston. Updated 31 October 2026 at 22:22 UTC.
BON
Kralendijk
tracking
IAH
Houston
smooth · +0
3,424 km · ~4h 53m est.
Running clean · 1 airline · 1x weekly · nonstop
100 / 100
route health from live BON and IAH delay boards
Median arrival delay is +8 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+8 minacross the last 1 arrival
Flight time~4h 53mestimated from route distance
Weekly departures1x1 direct airline on the leg
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Kralendijk to Houston route actually runs
Pro Flight Search records official board updates for nonstop BON to IAH 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: Kralendijk (BON) to Houston (IAH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BON-IAH
BON to IAH questions
Is BON–IAH running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from BON to IAH?
Great-circle distance is 3,424 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 272–323 min gate-to-gate on this route.
How often does BON–IAH fly?
United Airlines runs the route with about 1 flight a week (sun). 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 BON and arrival-side delay at IAH, 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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