Cheap flights from Ontario to Houston

Flights overview

Useful information for finding cheap flights from Ontario to Houston and booking your next trip
Cheapest round-trip flights $118
Frontier Nonstop 4 hr Thu, Jun 4 — Sun, Jun 7
The cheapest round-trip flight from Ontario to Houston is currently $118
Cheapest one-way flight $49
Frontier Nonstop 4 hr Thu, May 21
The cheapest one-way flight from Ontario to Houston is currently $49
Last-minute weekend getaway $275
Frontier 1 stop 17 hr Thu, May 7 — Sun, May 10
The cheapest last-minute weekend getaway from Ontario to Houston is currently $275
Cheapest business class flights $346
Frontier Nonstop 4 hr Thu, Jun 4 — Sun, Jun 7
The cheapest business class round-trip flight from Ontario to Houston is currently $346
Fastest flight 3 hr The fastest nonstop flight from Ontario to Houston takes 3 hr
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Ontario to Houston is typically December. The most expensive month to fly is typically March.
December
Cheapest
Typical prices: $100–425
March
Most expensive
Typical prices: $240–395

Popular airlines from Ontario to Houston

  • Southwest
    Nonstop
    from $312
    Typical price: $270–600
    7 weekly nonstop flights
    ONT - HOU Every day
    2481 weekly connecting flights
    ONT - HOU Every day
  • United
    Nonstop
    from $287
    Typical price: $255–570
    7 weekly nonstop flights
    ONT - IAH Every day
    448 weekly connecting flights
    ONT - IAH Every day
  • American
    from $342
    Typical price: $270–640
    596 weekly connecting flights
    ONT - HOU, IAH Every day
  • Frontier
    Nonstop
    from $118
    Typical price: $150–335
    7 weekly nonstop flights
    ONT - IAH Every day
    30 weekly connecting flights
    ONT - IAH Every day
  • Delta
    from $397
    Typical price: $305–890
    140 weekly connecting flights
    ONT - HOU, IAH Every day
  • Alaska
    from $417
    Typical price: $345–810
    21 weekly connecting flights
    ONT - IAH Every day

Popular airports near Ontario

  • Ontario International Airport (ONT)
    Ontario United States 11 min 2 mi
  • Los Angeles International Airport (LAX)
    Los Angeles United States 1 hr 7 min 44 mi
  • Tijuana International Airport (TIJ)
    Tijuana Mexico 2 hr 16 min 112 mi
  • San Diego International Airport (SAN)
    San Diego United States 1 hr 50 min 95 mi

Popular airports near Houston

  • George Bush Intercontinental Airport (IAH)
    Houston United States 22 min 16 mi
  • William P. Hobby Airport (HOU)
    Houston United States 22 min 9 mi
  • Dallas Fort Worth International Airport (DFW)
    Dallas United States 3 hr 51 min 237 mi
  • Austin-Bergstrom International Airport (AUS)
    Austin United States 2 hr 27 min 140 mi

Frequently asked questions about flying from Ontario to Houston

The cheapest flights from Ontario to Houston are usually in December. Typical ticket prices in December range from $100 to $425.
The cheapest round-trip flight from Ontario to Houston recently found on Google Flights was with Frontier from $118. The cheapest one-way flight was with Frontier from $49.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Ontario to Houston is $312, flying from Jun 4 to Jun 8.
  • The cheapest United flight from Ontario to Houston is $287, flying from Jun 4 to Jun 8.
  • The cheapest American flight from Ontario to Houston is $342, flying from May 28 to Jun 1.
  • The cheapest Frontier flight from Ontario to Houston is $118, flying from Jun 4 to Jun 7.
  • The cheapest Delta flight from Ontario to Houston is $397, flying from Jul 2 to Jul 6.
  • The cheapest Alaska flight from Ontario to Houston is $417, flying from Jun 4 to Jun 8.
The cheapest round-trip flight from Ontario to Houston starts at $118 from Thu, Jun 4 to Sun, Jun 7. The cheapest one-way flight starts at $49 and departs on Thu, May 21.
3 hr is the shortest flight time from Ontario to Houston.
Most visitors explore Houston May–Aug when the days are hot and humid. Winters (Nov–Feb) tend to be mild. Local events include the Martin Luther King, Jr., Grande Parade (Jan) and the Houston Livestock Show & Rodeo (Mar).
It's easy to use Google Flights to find the cheapest days to fly from Ontario to Houston.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from Ontario to Houston really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Ontario to Houston.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 7 nonstop flights and 2,481 connecting flights per week. Southwest flies from Ontario International Airport (ONT) to William P. Hobby Airport (HOU) .

Other popular airlines flying from Ontario to Houston are:
  • United offers 7 nonstop flights and 448 connecting flights per week. United flies from Ontario International Airport (ONT) to George Bush Intercontinental Airport (IAH) .
  • American offers 596 connecting flights per week. American flies from Ontario International Airport (ONT) to William P. Hobby Airport (HOU) , George Bush Intercontinental Airport (IAH) .
  • Frontier offers 7 nonstop flights and 30 connecting flights per week. Frontier flies from Ontario International Airport (ONT) to George Bush Intercontinental Airport (IAH) .
  • Delta offers 140 connecting flights per week. Delta flies from Ontario International Airport (ONT) to William P. Hobby Airport (HOU) , George Bush Intercontinental Airport (IAH) .
  • Alaska offers 21 connecting flights per week. Alaska flies from Ontario International Airport (ONT) to George Bush Intercontinental Airport (IAH) .
The number of connecting flights refers to distinct flights with at least one stop between Ontario and Houston.
The cheapest round-trip flight from Ontario to Houston recently found on Google Flights was with Frontier from $118. The cheapest one-way flight was with Frontier from $49.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Southwest flight from Ontario to Houston is $312, flying from Jun 4 to Jun 8.
  • The cheapest United flight from Ontario to Houston is $287, flying from Jun 4 to Jun 8.
  • The cheapest American flight from Ontario to Houston is $342, flying from May 28 to Jun 1.
  • The cheapest Frontier flight from Ontario to Houston is $118, flying from Jun 4 to Jun 7.
  • The cheapest Delta flight from Ontario to Houston is $397, flying from Jul 2 to Jul 6.
  • The cheapest Alaska flight from Ontario to Houston is $417, flying from Jun 4 to Jun 8.
Southwest, Frontier and United fly direct from Ontario to Houston.
  • There are 7 Southwest direct flights from Ontario to Houston per week. Flights are available every day.
  • There are 7 United direct flights from Ontario to Houston per week. Flights are available every day.
  • There are 7 Frontier direct flights from Ontario to Houston per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between Ontario and Houston at price $275 is offered by Frontier from Thu, May 7 to Sun, May 10.
Southwest, Frontier and United fly direct from Ontario to Houston.
  • There are 7 Southwest direct flights from Ontario to Houston per week. Flights are available every day.
  • There are 7 United direct flights from Ontario to Houston per week. Flights are available every day.
  • There are 7 Frontier direct flights from Ontario to Houston per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from Ontario to Houston on a daily basis.
The cheapest direct (nonstop) round-trip flights between Ontario and Houston start at $118 from Thu, Jun 4 to Sun, Jun 7 with Frontier.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Ontario to Houston, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between Ontario and Houston start at $346 from Thu, Jun 4 to Sun, Jun 7 with Frontier.
The cheapest economy class round-trip flights between Ontario and Houston start at $118 from Thu, Jun 4 to Sun, Jun 7.
To book business class trips from Ontario to Houston, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between Ontario and Houston starts at $275 from Thu, May 7 to Sun, May 10 with Frontier.
The cheapest last-minute deal between Ontario and Houston at price $275 is offered by Frontier from Thu, May 7 to Sun, May 10.
To find last-minute flight deals from Ontario to Houston, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

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