Flying through Houston today? Here is IAH’s live outlook, what typically disrupts this airport, and the fastest way to a human at your airline if things go sideways.
Today’s on-time outlook for IAH
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Prediction from the Amadeus travel network, refreshed daily.
What disrupts IAH
United's southern hub and Latin America gateway deals with Gulf humidity's daily storm cycle and the occasional tropical system. Its five terminals are far-flung; allow real time for transfers on tight connections.
Local knowledge: Gulf storms build mid-afternoon most of the summer — the first bank of morning departures is IAH's reliability sweet spot.
Flight delayed or cancelled at IAH? Do this
- Take whatever rebooking the airline’s app offers first — you can still negotiate a better option with an agent afterwards.
- Request a call-back, then head for the service desk anyway — run both queues in parallel. Direct airline numbers are below.
- Know your rights before accepting vouchers: our cancellation guide and compensation guide take three minutes.
- Confirm the delay is real: our free status tool often shows gate and timing changes before airport screens do.
Major airlines at IAH — direct phone lines
Every number in our directory is the airline’s own published line — free, no middleman.
IAH delay questions
Is IAH delayed right now?
The prediction card at the top of this page refreshes daily from the Amadeus network. For a specific flight, check our live flight status tool — airport-wide averages matter less than your aircraft’s actual rotation. Gulf storms build mid-afternoon most of the summer — the first bank of morning departures is IAH's reliability sweet spot.
Which airlines dominate IAH?
United Airlines carry the largest share of traffic at George Bush Intercontinental. Their direct customer service lines are listed above — during disruption, call the airline, not the airport.
Who do I call about a cancelled flight at IAH?
Always the airline operating your flight — the airport cannot rebook you. For example, United Airlines answers at 1-800-864-8331; every other carrier’s number is in our free directory.