ONT

$91 Find Cheap Flights from Texas to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Texas to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Texas to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Texas to Ontario

Sat, Sep 5 - Tue, Sep 8
Frontier Logo
5:38 pm - 7:01 pm
IAH
-
ONT
3h 23mnonstop
Frontier Logo
10:59 am - 4:23 pm
ONT
-
IAH
3h 24mnonstop
$144Frontier
Tue, Aug 18 - Tue, Aug 25
Frontier Logo
5:38 pm - 7:01 pm
IAH
-
ONT
3h 23mnonstop
Frontier Logo
10:59 am - 4:23 pm
ONT
-
IAH
3h 24mnonstop
$146Frontier
Wed, Aug 5 - Wed, Aug 12
Southwest Logo
10:50 am - 11:50 am
AUS
-
ONT
3h 00mnonstop
Southwest Logo
8:30 am - 1:20 pm
ONT
-
AUS
2h 50mnonstop
$196Southwest
Wed, Aug 5 - Wed, Aug 12
Southwest Logo
10:50 am - 11:50 am
AUS
-
ONT
3h 00mnonstop
Southwest Logo
1:50 pm - 11:05 pm
ONT
-
AUS
7h 15m
1 stop
$206Southwest
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
10:41 am - 11:43 am
DFW
-
ONT
3h 02mnonstop
American Airlines Logo
10:29 am - 3:39 pm
ONT
-
DFW
3h 10mnonstop
$247American Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
10:41 am - 11:43 am
DFW
-
ONT
3h 02mnonstop
American Airlines Logo
10:29 am - 3:39 pm
ONT
-
DFW
3h 10mnonstop
$248American Airlines
Sat, Aug 22 - Wed, Aug 26
United Airlines Logo
2:13 pm - 6:12 pm
MAF
-
ONT
5h 59m
1 stop
United Airlines Logo
5:00 am - 12:45 pm
ONT
-
MAF
5h 45m
1 stop
$343United Airlines
Sat, Aug 1 - Fri, Aug 7
United Airlines Logo
5:13 pm - 9:55 pm
MAF
-
ONT
6h 42m
1 stop
United Airlines Logo
1:18 pm - 10:02 pm
ONT
-
MAF
6h 44m
1 stop
$359United Airlines
Fri, Sep 25 - Tue, Sep 29
Delta Logo
12:39 pm - 10:26 pm
MFE
-
ONT
11h 47m
2 stops
Delta Logo
1:04 pm - 11:55 pm
ONT
-
MFE
8h 51m
2 stops
$415Delta
Fri, Sep 25 - Tue, Sep 29
Delta Logo
12:39 pm - 10:26 pm
MFE
-
ONT
11h 47m
2 stops
Delta Logo
1:04 pm - 11:55 pm
ONT
-
MFE
8h 51m
2 stops
$434Delta
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Good to know

Low seasonJanuary
Cheapest flight$91
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Austin to Ontario

Flights from Texas to Ontario: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Texas to Ontario 
Learn how KAYAK collects reviews and tips from users.
FraxysFlew with American Airlines
DFW
-
ONT
Feb 2026
Bring your own snacks or sandwich for dinner in the plane.
JoelFlew with American Airlines
DFW
-
ONT
May 2024
Dallas is a very spread out airport, jus make sure that you have enough time to transfer during layovers. Also all the restaurants close fairly early

FAQs for booking flights from Texas to Ontario

  • How does KAYAK find such low prices on flights from Texas to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Texas to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Texas to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Texas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Texas to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Texas with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Texas to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Texas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)