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.

$74 CHEAP FLIGHTS from Texas to Ontario

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Flight Deals

Cheap Flights from Texas to Ontario

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Texas to Ontario

Mon, Oct 19 - Thu, Oct 29

7:14 pm - 10:29 amELP El Paso-ONT Ontario

16h 15m1 stop Denver Intl

6:25 am - 6:21 pmONT Ontario-ELP El Paso

10h 56m1 stop Denver Intl

$128Frontier

Fri, Oct 2 - Sat, Oct 10

4:20 pm - 5:48 pmIAH Houston George Bush Intcntl-ONT Ontario

3h 28mnonstop

10:04 am - 6:00 amONT Ontario-IAH Houston George Bush Intcntl

17h 56m1 stop Las Vegas Harry Reid Intl

$140Frontier

Tue, Oct 27 - Tue, Nov 3

1:25 pm - 2:45 pmHOU Houston Hobby-ONT Ontario

3h 20mnonstop

12:30 pm - 5:35 pmONT Ontario-HOU Houston Hobby

3h 05mnonstop

$235Southwest

Tue, Nov 10 - Tue, Nov 17

8:35 pm - 10:00 pmHOU Houston Hobby-ONT Ontario

3h 25mnonstop

12:30 pm - 5:35 pmONT Ontario-HOU Houston Hobby

3h 05mnonstop

$235Southwest

Fri, Oct 16 - Tue, Oct 20

2:55 pm - 11:42 pmIAH Houston George Bush Intcntl-ONT Ontario

10h 47m1 stop Seattle/Tacoma Intl

11:26 am - 7:06 pmONT Ontario-IAH Houston George Bush Intcntl

5h 40m1 stop Las Vegas Harry Reid Intl

$237Multiple Airlines

Thu, Oct 8 - Thu, Oct 15

6:17 pm - 11:54 pmIAH Houston George Bush Intcntl-ONT Ontario

7h 37m1 stop Portland

8:35 pm - 3:23 pmONT Ontario-IAH Houston George Bush Intcntl

16h 48m1 stop Las Vegas Harry Reid Intl

$242Multiple Airlines

Fri, Oct 2 - Mon, Oct 5

4:25 pm - 10:51 pmIAH Houston George Bush Intcntl-ONT Ontario

8h 26m1 stop San Francisco

6:00 am - 11:15 amONT Ontario-IAH Houston George Bush Intcntl

3h 15mnonstop

$255United Airlines

Mon, Nov 23 - Thu, Dec 3

7:38 pm - 11:49 pmIAH Houston George Bush Intcntl-ONT Ontario

6h 11m1 stop Salt Lake City

11:08 pm - 8:58 amONT Ontario-IAH Houston George Bush Intcntl

7h 50m1 stop Atlanta Hartsfield-Jackson

$255Delta

Thu, Oct 15 - Tue, Oct 20

11:12 am - 6:22 pmHOU Houston Hobby-ONT Ontario

9h 10m1 stop Atlanta Hartsfield-Jackson

12:16 pm - 11:03 pmONT Ontario-HOU Houston Hobby

8h 47m1 stop Atlanta Hartsfield-Jackson

$255Delta

Fri, Oct 2 - Mon, Oct 5

5:15 pm - 10:51 pmIAH Houston George Bush Intcntl-ONT Ontario

7h 36m1 stop San Francisco

1:52 pm - 10:11 pmONT Ontario-IAH Houston George Bush Intcntl

6h 19m1 stop San Francisco

$265United Airlines

Recent last minute flight deals from Texas to Ontario

Fri, Sep 18 - Mon, Oct 5

5:05 am - 11:22 amIAH Houston George Bush Intcntl-ONT Ontario

8h 17m1 stop Las Vegas Harry Reid Intl

6:45 pm - 11:58 pmONT Ontario-IAH Houston George Bush Intcntl

3h 13mnonstop

$219Frontier

Thu, Sep 17 - Sat, Nov 7

5:22 pm - 6:39 pmDFW Dallas/Fort Worth-ONT Ontario

3h 17mnonstop

5:33 pm - 10:47 pmONT Ontario-DFW Dallas/Fort Worth

3h 14mnonstop

$228Frontier

Fri, Sep 18 - Mon, Sep 21

4:24 pm - 11:24 pmAUS Austin Bergstrom-ONT Ontario

9h 00m1 stop Seattle/Tacoma Intl

2:30 pm - 2:37 pmONT Ontario-AUS Austin Bergstrom

22h 07m1 stop Las Vegas Harry Reid Intl

$426Multiple Airlines

Fri, Sep 18 - Tue, Sep 22

7:15 am - 5:18 pmAUS Austin Bergstrom-ONT Ontario

12h 03m1 stop Portland

10:04 am - 2:37 pmONT Ontario-AUS Austin Bergstrom

26h 33m1 stop Las Vegas Harry Reid Intl

$440Multiple Airlines

Wed, Sep 16 - Thu, Sep 17

3:14 pm - 8:07 pmAUS Austin Bergstrom-ONT Ontario

6h 53m1 stop Dallas/Fort Worth

6:00 am - 2:24 pmONT Ontario-AUS Austin Bergstrom

6h 24m1 stop Dallas/Fort Worth

$471American Airlines

Sat, Sep 19 - Sat, Sep 26

12:44 pm - 6:17 pmAUS Austin Bergstrom-ONT Ontario

7h 33m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

6:00 am - 2:24 pmONT Ontario-AUS Austin Bergstrom

6h 24m1 stop Dallas/Fort Worth

$478American Airlines

Thu, Sep 17 - Mon, Oct 12

6:00 am - 9:15 amDAL Dallas Love Field-ONT Ontario

5h 15m1 stop Houston Hobby

1:50 pm - 9:20 pmONT Ontario-DAL Dallas Love Field

5h 30m1 stop Sacramento Intl

$534Southwest

Thu, Sep 17 - Mon, Oct 12

1:55 pm - 7:20 pmDAL Dallas Love Field-ONT Ontario

7h 25m2 stops Little Rock Denver Intl

1:50 pm - 9:20 pmONT Ontario-DAL Dallas Love Field

5h 30m1 stop Sacramento Intl

$539Southwest

Wed, Sep 16 - Sun, Sep 20

12:30 pm - 8:01 pmLRD Laredo-ONT Ontario

9h 31m2 stops Houston George Bush Intcntl San Francisco

6:00 am - 1:26 pmONT Ontario-LRD Laredo

5h 26m1 stop Houston George Bush Intcntl

$564United Airlines

Wed, Sep 16 - Tue, Sep 22

12:30 pm - 8:01 pmLRD Laredo-ONT Ontario

9h 31m2 stops Houston George Bush Intcntl San Francisco

6:00 am - 1:26 pmONT Ontario-LRD Laredo

5h 26m1 stop Houston George Bush Intcntl

$564United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$74

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly and prices are also 20% lower on average.

Flight from Austin to Ontario

RicardoFlew with American Airlines-Aug 2026

Enjoy the Dallas airport with its variety of restaurants and stores if you have to wait for long layovers.

FraxysFlew with American Airlines-Feb 2026

Bring your own snacks or sandwich for dinner in the plane.

JoelFlew with American Airlines-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

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.