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Local time zone: America/Chicago
George Bush Intcntl/Houston Airport (IAH) had nonstop service to 171 destinations on 30 airlines in our August 17, 2026 departure snapshot. The busiest route was to Chicago (ORD), served by 3 carriers, and the largest operator here was United Airlines with nonstops to 156 destinations. 63 of those routes were international.
Route data as of August 17, 2026, based on a 7-day departures sample. Routes may have changed since this snapshot.
This schedule snapshot includes nonstop flights from IAH to 171 destinations, including 63 international routes. The snapshot shows about 574 flights per day across those routes. The busiest options start with Chicago (ORD), Dallas (DFW), Atlanta (ATL).
All airports near Houston (2 compared) →
63 international routes in this schedule set
United States 108 · Mexico 19 · Canada 5
18-19/day on 3 airlines
Boeing 737 · Airbus A320 family · Embraer E-Jet
These routes have enough tracked flights or schedule depth for a full guide with duration, distance, airlines, aircraft, and frequency.
Houston to Buenos Aires · AR
Boston · 1,595 mi
Frankfurt · 5,220 mi
Miami · 963 mi
Chicago · 926 mi
Los Angeles · 1,376 mi
Dubai · 8,155 mi
Washington · 1,189 mi
Ranked by destinations served, then daily frequency.
+7 more IAH routes on American Airlines — use the full route directory for every destination.
+5 more IAH routes on SkyWest Airlines — use the full route directory for every destination.
+3 more IAH routes on Delta Air Lines — use the full route directory for every destination.
+2 more IAH routes on Volaris — use the full route directory for every destination.
Grouped by departure terminal in our schedule data, with each carrier's share of that terminal's captured departures.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Showing the 60 busiest destinations. Browse all 171 IAH nonstop destinations →
George Bush Intcntl/Houston Airport (IAH / KIAH) is located in Houston, United States.
The IATA code is IAH. The ICAO code is KIAH.
The busiest scheduled route from IAH in our August 17, 2026 departure data was IAH to ORD (Chicago), with 18-19/day across 3 airlines.
United Airlines was the largest operator in our IAH schedule data, serving 156 destinations with 418-419/day.
This schedule snapshot includes 63 international routes and 108 domestic routes from IAH.
30 airlines operated at IAH in our August 17, 2026 snapshot. Top carriers include United Airlines, Mesa Airlines, Frontier Airlines, American Airlines, SkyWest Airlines.
This schedule snapshot includes direct flights from IAH to 171 destinations including Chicago, Dallas, Atlanta, Denver, Los Angeles.
View live arrivals and departures at IAH on FlightRadar24.
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