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Cheap Flights from Houston Hobby to Ontario International

Compare Houston Hobby to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals from Houston Hobby to Ontario International

Looking for a cheap last-minute deal or the best return flight from Houston Hobby Airport to Ontario International Airport? If you want to travel next month, return fares start from R 3,199. Find the lowest prices on one-way and return tickets right here.
Ontario.R 1,599 per passenger.Departing Mon, 12 Oct.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 12 Oct, arriving in Ontario International.Price includes taxes and charges.From R 1,599, select.
Ontario.R 1,599 per passenger.Departing Tue, 1 Sep.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Tue, 1 Sep, arriving in Ontario International.Price includes taxes and charges.From R 1,599, select.
Ontario.R 1,599 per passenger.Departing Wed, 26 Aug.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 26 Aug, arriving in Ontario International.Price includes taxes and charges.From R 1,599, select.
Ontario.R 1,600 per passenger.Departing Wed, 11 Nov.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 11 Nov, arriving in Ontario International.Price includes taxes and charges.From R 1,600, select.
Ontario.R 1,933 per passenger.Departing Mon, 7 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 7 Dec, arriving in Ontario International.Price includes taxes and charges.From R 1,933, select.
Ontario.R 1,933 per passenger.Departing Wed, 6 Jan.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Wed, 6 Jan, arriving in Ontario International.Price includes taxes and charges.From R 1,933, select.
Ontario.R 2,207 per passenger.Departing Mon, 8 Feb.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Mon, 8 Feb, arriving in Ontario International.Price includes taxes and charges.From R 2,207, select.
Ontario.R 3,182 per passenger.Departing Thu, 4 Mar.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Thu, 4 Mar, arriving in Ontario International.Price includes taxes and charges.From R 3,182, select.
Ontario.R 5,123 per passenger.Departing Thu, 30 Jul.One-way flight with Allegiant Air.Outbound indirect flight with Allegiant Air, departs from Houston Hobby on Thu, 30 Jul, arriving in Ontario International.Price includes taxes and charges.From R 5,123, select.
Ontario.R 8,340 per passenger.Departing Tue, 28 Jul.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Houston Hobby on Tue, 28 Jul, arriving in Ontario International.Price includes taxes and charges.From R 8,340, select.

Find the cheapest month to fly from Houston Hobby to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston Hobby to Ontario International flights are currently cheapest in August.
Jul
from R 5,123
Aug
from R 1,599
Sep
from R 1,599
Oct
from R 1,599
Nov
from R 1,600
Dec
from R 1,933
Jan
from R 1,933
Feb
from R 2,207
Mar
from R 3,182
Apr
Find prices
May
Find prices
Jun
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Direct flights from Houston Hobby to Ontario International

Houston Hobby to Ontario International: Alternative routes

Compare routes from Houston Hobby to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
ClosestCheapest
from R 1,599
Search flights

San Bernardino Norton AFB

39km from central Ontario
from R 2,413
Search flights

Santa Ana John Wayne

48km from central Ontario
from R 1,628
Search flights

Long Beach Municipal

54km from central Ontario
from R 2,026
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Hawthorne

65km from central Ontario
Search flights

Burbank

67km from central Ontario
from R 2,325
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Los Angeles International

71km from central Ontario
from R 1,816
Search flights

Houston to Ontario: Flight information

The things to know before you go.
Cheapest flight foundR 1,599
Cheapest month to flyAugust
Average flight time3 hrs, 23 mins
Most popular airlineSouthwest Airlines
Average flights per week9

Finding cheap flights from Houston Hobby to Ontario International: Frequently asked questions

The best price we found for a return flight from Houston Hobby to Ontario International is R 3,199. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 23 minutes is the average flight time from Houston Hobby to Ontario International.
Southwest Airlines flies direct from Houston Hobby to Ontario International.
As of July 2026, there are 9 flights per week flying from Houston Hobby to Ontario International.
The cheapest month to fly from Houston Hobby to Ontario International is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston Hobby Airport to Ontario International Airport on Saturday, 24 October 2026.
Yes – the average flight time is 3 hours and 23 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Southwest Airlines offers the cheapest flight tickets to Ontario International.

Flying from Houston Hobby Airport (HOU) to Ontario International Airport (ONT): what you need to know

  • The average length of a direct flight from Houston Hobby Airport to Ontario International Airport is 3 hours 15 minutes.

  • Ontario is two hours behind Houston and follows the UTC-8 timezone.

  • Flights from HOU to ONT start at 07:50 — the first with Southwest Airlines. The latest departure is at 19:05 with Southwest Airlines. Overall, you can choose from four weekly Houston Hobby Airport to Ontario International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport on time to catch your HOU to ONT flight.

  • Travelling during a peak time like July? Major public holidays and other popular seasons can result in longer queues at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • Southwest Airlines is your gateway to exploring Ontario (and perhaps some other great corners of the United States!). Browse the direct flights from Houston Hobby Airport to Ontario International Airport offered by this popular carrier.

  • Southwest Airlines is the airline most travellers choose to fly with on this route.

  • Southwest Airlines is the most punctual carrier that operates HOU to ONT flights, with 77.97% of its services arriving as planned.

  • If you want to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from Houston Hobby Airport to Ontario International Airport. Here are the top stopovers between HOU and ONT:

    • Phoenix Sky Harbour Airport

    • Harry Reid International Airport

    • Dallas Love Field Airport

Handy information about Houston Hobby Airport (HOU)

  • HOU's address is 7800 Airport Boulevard.

  • When it comes to the on-time performance of Houston Hobby Airport, 79% of flights arrive within the scheduled timeframe.

  • Houston Hobby Airport is around 19 kilometres from central Houston. If you're ride-sharing, catching a taxi or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • The trip when using public transport typically takes 50 minutes.

  • Booked an early flight from Houston Hobby Airport to Ontario International Airport? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by picking one of these hotels near HOU:

Arriving at Ontario International Airport (ONT)

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Houston Hobby Airport to Ontario International Airport is March, while July is the busiest. Pick the best time to go to Ontario based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Ontario is August, with temperatures ranging between 16ºC (61ºF) and 36ºC (97ºF). Lock in your flights from Houston Hobby Airport to Ontario International Airport in this month if this is the kind of weather you like.

  • February sees average temperatures of between 4ºC (39ºF) and 24ºC (75ºF). Look for cheap tickets from HOU to ONT sometime around then if you want to travel in cooler conditions.

Explore more of the United States

  • You've seen Ontario, now it's time to discover other parts of the United States. Travel about 56 kilometres west to Los Angeles to tick off its leading attractions. From Hollywood Sign to Universal Studios Hollywood and Hollywood Bowl, you'll have a full itinerary ahead.

  • San Diego is another well-known destination in the United States and is around 153 kilometres south of Ontario. No journey is complete without seeing San Diego Zoo, San Diego Balboa Park and USS Midway Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.