Direct flights from Ontario to Houston

Did you mean Flights from Houston to Ontario?

Ontario

United States

ONT

Ontario International Airport

Houston

United States

IAH

George Bush Intercontinental Houston Airport

Route: Nonstop service available
Distance: 1,331 miles
Marketing airlines: 3 airlines
Aircraft: 7 aircraft types
Dates: Oct 19, 2026 – Oct 17, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Ontario to Houston route overview

Ontario International Airport (ONT) serves Ontario; George Bush Intercontinental Houston Airport (IAH) serves Houston.

The airports are 1,331 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from ONT to IAH.

Marketing airlines listed in the current schedule, including codeshare sellers, are Frontier Airlines (F9), United Airlines (UA) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 17, 2027.

Marketing airlines on the Ontario to Houston route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from ONT to IAH

Frequently asked questions

Which airports serve the Ontario to Houston route?

Ontario International Airport (ONT) is the origin airport and George Bush Intercontinental Houston Airport (IAH) is the destination airport.

How far is Houston from Ontario?

ONT and IAH are approximately 1,331 miles apart by great-circle distance.

Are there direct flights from ONT to IAH?

Yes. Roame's current schedule feed shows nonstop service from ONT to IAH.

Which airlines market flights from ONT to IAH?

Which aircraft fly from ONT to IAH?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739) and Boeing 737-700 / Boeing 737-700ER (73G).