Flights from Houston (IAH)

737 outbound routes to 22 unique destinations in the current dataset.

Open Map View for IAH

Domestic

14 destinations

International

8 destinations

Top airlines shown

12 carriers by route count

Flight-number preview is shown for up to 8 routes per page.

Top airlines by route count

  • United AirlinesUnited Airlines · 162 routes
  • Delta Air LinesDelta Air Lines · 11 routes
  • American AirlinesAmerican Airlines · 9 routes
  • Spirit AirlinesSpirit Airlines · 7 routes
  • Air CanadaAir Canada · 5 routes
  • Air ChinaAir China · 4 routes
  • LufthansaLufthansa · 4 routes
  • Air FranceAir France · 2 routes
  • Alaska AirlinesAlaska Airlines · 2 routes
  • Avianca - Aerovias Nacionales de ColombiaAvianca - Aerovias Nacionales de Colombia · 2 routes
  • Copa AirlinesCopa Airlines · 2 routes
  • ITA AirwaysITA Airways · 2 routes

Domestic destinations

International destinations

Frequently asked questions

How often are flights from IAH updated?

All Routes refreshes schedule and route coverage data on a recurring cycle. Because airlines can add or pause routes seasonally, use this page for discovery and verify exact dates before booking.

What is the difference between domestic and international destinations?

Domestic destinations are in US, while international destinations are in other countries. This split helps you compare regional coverage versus long-haul expansion from one airport.

Can I jump from this page into city-pair details?

Yes. Every destination links to a dedicated route page where you can open map view and inspect route-level details for faster trip planning.