ONT

$66 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 10/14. 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

Tue, Aug 25 - Mon, Aug 31
Frontier Logo
8:15 pm - 10:04 am
AUS
-
ONT
15h 49m
1 stop
Frontier Logo
6:00 am - 11:41 pm
ONT
-
AUS
15h 41m
1 stop
$130Frontier
Wed, Oct 7 - Tue, Oct 13
Frontier Logo
6:45 am - 1:57 pm
AUS
-
ONT
9h 12m
1 stop
Frontier Logo
6:00 am - 11:59 pm
ONT
-
AUS
15h 59m
1 stop
$135Frontier
Sat, Aug 15 - Wed, Aug 19
Southwest Logo
8:25 am - 9:35 am
HOU
-
ONT
3h 10mnonstop
Southwest Logo
12:30 pm - 5:35 pm
ONT
-
HOU
3h 05mnonstop
$195Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
8:25 am - 9:35 am
HOU
-
ONT
3h 10mnonstop
Southwest Logo
6:10 am - 4:55 pm
ONT
-
HOU
8h 45m
1 stop
$205Southwest
Wed, Aug 12 - Tue, Aug 18
American Airlines Logo
6:18 pm - 10:59 pm
LRD
-
ONT
6h 41m
1 stop
American Airlines Logo
10:29 am - 5:48 pm
ONT
-
LRD
5h 19m
1 stop
$319American Airlines
Sun, Aug 16 - Sun, Aug 23
American Airlines Logo
6:00 am - 12:03 pm
MFE
-
ONT
8h 03m
1 stop
American Airlines Logo
4:07 pm - 11:56 pm
ONT
-
MFE
5h 49m
1 stop
$329American Airlines
Sat, Aug 29 - Wed, Sep 2
Delta Logo
5:20 am - 12:16 pm
MFE
-
ONT
8h 56m
2 stops
Delta Logo
6:00 am - 6:39 pm
ONT
-
MFE
10h 39m
2 stops
$339Delta
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
9:45 am - 8:53 pm
LRD
-
ONT
13h 08m
2 stops
United Airlines Logo
6:08 am - 8:16 pm
ONT
-
LRD
12h 08m
2 stops
$396United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
7:40 am - 12:50 pm
MAF
-
ONT
7h 10m
1 stop
United Airlines Logo
1:18 pm - 10:09 pm
ONT
-
MAF
6h 51m
1 stop
$397United Airlines
Sat, Aug 29 - Thu, Sep 3
Delta Logo
5:20 am - 12:16 pm
MFE
-
ONT
8h 56m
2 stops
Delta Logo
1:06 pm - 11:59 pm
ONT
-
MFE
8h 53m
2 stops
$434Delta
Useful Info

Good to know

Low season

January

Cheapest flight

$66
Best time to beat the crowds with an average 6% 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)