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Direct flights from Houston to Ontario

Did you mean Flights from Ontario to Houston?

Flightmap/Flights from IAH/IAH to ONT

Houston

United States

IAH

George Bush Intercontinental Houston Airport

Ontario

United States

ONT

Ontario International Airport

Route
Nonstop service available
Distance
1,331 miles
Marketing airlines
4 airlines
Aircraft
9 aircraft types
Dates
Oct 19, 2026 – Oct 18, 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.

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Explore these airports and cities

  • Flights from IAH
  • Flights to ONT

Houston to Ontario route overview

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

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

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

Marketing airlines listed in the current schedule, including codeshare sellers, are Frontier Airlines (F9), Lufthansa (LH), 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 18, 2027.

Marketing airlines on the Houston to Ontario 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.

  • Lufthansa (LH)Codeshare only
  • Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from IAH to ONT

Frequently asked questions

Which airports serve the Houston to Ontario route?

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

How far is Ontario from Houston?

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

Are there direct flights from IAH to ONT?

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

Which airlines market flights from IAH to ONT?

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

Which aircraft fly from IAH to ONT?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), Airbus A320neo (32N), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-700 / Boeing 737-700ER (73G), Boeing 757-300 (753), 777 and JET.

More routes from Houston

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  • SFOSan FranciscoUnited States
  • DENDenverUnited States
  • EWRNewarkUnited States
  • MIAMiamiUnited States
  • PHXPhoenixUnited States
  • OKCOklahoma CityUnited States
  • MFEMc AllenUnited States
  • CRPCorpus ChristiUnited States
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