Ontario to Houston flights
The cheapest round trip we found from Ontario to Houston is $219 (Dec 11 – 28, 1 stop).
ONT to HOU · Round trip · Economy · Prices per person in USD · Price found (1 day ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $225 |
| December 2026 | $219 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 11 – 28 17 nights · leave Fri$219$219 Book
Frontier Airlines 1 stop · 4h 24m -
Nov 27 – Dec 1 4 nights · leave Fri$225$225 Book
United Airlines 1 stop · 3h 10m -
Nov 6 – 10 4 nights · leave Fri$395$395 Book
Frontier Airlines 1 stop · 4h 18m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Houston
Tickets and tours on KlookTo see tours and tickets here, turn on partner content in .
Partner widget: we may earn a commission if you book, at no extra cost to you.
Plan the rest of your trip
Houston · Dec 11 – 28Partner links: we may earn a commission if you book, at no extra cost to you.
More from Ontario
-
-
-
-
-
-
-
-
Flights to Houston from other cities
-
-
-
-
-
-
Ontario to Houston: questions
How much does a flight from Ontario to Houston cost?
The cheapest round trip we have found right now is $219, leaving December 11 and returning December 28. Prices are per person, economy, in USD.
Which airports do Ontario to Houston flights use?
Ontario airports include Ontario International (ONT). Houston airports include George Bush Intercontinental (IAH) and William P. Hobby (HOU). The prices on this page cover every airport in both cities (ONT and HOU are the city codes).
About this route
We track round-trip economy fares from Ontario (United States) to Houston (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $219, departing December 11 and returning December 28. The cheapest month to fly in our data is December, from $219. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.