$63+ Cheap flights from Houston to Ontario (ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — ONT
set 8 — set 151
Round-trip
1 adult, Economy
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Find cheap flights from Houston to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston to Ontario are usually found in August or September, booked 57 days in advance, depart on a Wednesday or Thursday and return on a Tuesday
Cheap flight deals from Houston to Ontario
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Best
Last-minute
One-way
Cheapest flights from Houston to OntarioExplore the most affordable flight options available from Houston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 9, 2026.
Explore the most affordable flight options available from Houston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 9, 2026.
This Super.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/25:38 pm -
Nonstop3h 23m
sáb 9/510:59 am -
Nonstop3h 24m
Deal found 8/7![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/134:20 pm -
Nonstop3h 28m
dom 9/206:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$136
This Frontier deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/15:38 pm -
Nonstop3h 23m
sáb 9/510:59 am -
Nonstop3h 24m
Deal found 8/9![Frontier logo]()
$137
This Expedia deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/204:20 pm -
Nonstop3h 28m
dom 9/276:45 pm -
Nonstop3h 13m
Deal found 8/7![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/66:10 am -
Nonstop3h 22m
dom 9/136:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$140
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/14:20 pm -
Nonstop3h 28m
dom 10/46:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$141
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/66:10 am -
Nonstop3h 22m
dom 9/206:45 pm -
Nonstop3h 13m
Deal found 8/7![Frontier logo]()
$142
This Booking.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/114:20 pm -
Nonstop3h 28m
dom 9/136:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$143
This Super.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/55:38 pm -
Nonstop3h 23m
sex 9/116:45 pm -
Nonstop3h 13m
Deal found 8/5![Frontier logo]()
$144
This Priceline deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/104:20 pm -
Nonstop3h 28m
qui 9/108:24 pm -
1 stop7h 38m
Deal found 8/7![Frontier logo]()
$145
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 8/286:10 am -
Nonstop3h 22m
qua 9/210:59 am -
Nonstop3h 24m
Deal found 8/9![Frontier logo]()
$146
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/58:25 am -
Nonstop3h 10m
sex 9/1111:00 am -
Nonstop3h 05m
Deal found 8/5![Southwest logo]()
$235
Best flights from Houston to OntarioDiscover carefully curated flight deals from Houston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 9, 2026.
Discover carefully curated flight deals from Houston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 9, 2026.
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/58:25 am -
Nonstop3h 10m
sex 9/1112:25 pm -
1 stop5h 45m
Deal found 8/5![Southwest logo]()
$245
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/511:28 am -
2 stops12h 55m
sex 9/116:00 am -
2 stops13h 30m
Deal found 8/5![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/54:47 pm -
Nonstop3h 25m
sex 9/116:00 am -
Nonstop3h 15m
Deal found 8/6![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/211:25 am -
2 stops9h 30m
sáb 9/511:55 am -
Nonstop3h 05m
Deal found 8/4![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/222:25 pm -
2 stops10h 15m
sáb 10/312:17 pm -
1 stop9h 37m
Deal found 8/5![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/141:25 pm -
Nonstop3h 20m
qui 10/156:55 pm -
1 stop4h 25m
Deal found 8/7![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 8/292:28 pm -
2 stops10h 17m
ter 9/17:05 am -
1 stop8h 35m
Deal found 8/5![Delta logo]()
$282
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 9/218:30 pm -
Nonstop3h 29m
sáb 9/266:00 am -
Nonstop3h 15m
Deal found 8/6![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 10/28:00 am -
Nonstop3h 25m
seg 10/52:40 pm -
Nonstop3h 00m
Deal found 8/6![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 10/188:30 pm -
Nonstop3h 29m
sáb 10/246:00 am -
Nonstop3h 15m
Deal found 8/4![United Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/192:48 pm -
1 stop7h 13m
ter 9/226:00 am -
Nonstop3h 15m
Deal found 8/7![United Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/292:25 pm -
1 stop7h 59m
dom 10/410:00 pm -
1 stop10h 00m
Deal found 8/6![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/38:05 am -
1 stop6h 05m
seg 9/72:40 pm -
1 stop7h 30m
Deal found 8/4![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 8/274:14 pm -
2 stops9h 20m
dom 8/309:43 am -
2 stops12h 09m
Deal found 8/4![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/258:30 pm -
Nonstop3h 29m
sáb 9/266:00 am -
Nonstop3h 15m
Deal found 8/7![United Airlines logo]()
$395
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/175:30 am -
2 stops7h 55m
sex 9/184:50 pm -
1 stop5h 20m
Deal found 8/5![Southwest logo]()
$378
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 2/58:00 pm -
Nonstop3h 21m
seg 2/86:53 pm -
1 stop8h 58m
Deal found 8/5![United Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/31:13 pm -
2 stops12h 21m
qui 9/107:05 am -
1 stop7h 25m
Deal found 8/5![Delta logo]()
$413
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 8/276:45 am -
1 stop5h 35m
dom 8/3010:05 am -
2 stops9h 15m
Deal found 8/4![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 10/238:00 am -
Nonstop3h 25m
dom 10/252:45 pm -
Nonstop3h 00m
Deal found 8/7![Southwest logo]()
$401
This Southwest deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/229:40 am -
2 stops6h 25m
seg 9/286:00 am -
1 stop5h 35m
Deal found 8/8![Southwest logo]()
$422
Last-minute flights from Houston to OntarioDiscover last-minute flight deals from Houston to Ontario. Data last updated agosto 9, 2026 and is based on user searches.
Discover last-minute flight deals from Houston to Ontario. Data last updated agosto 9, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 8/286:10 am -
Nonstop3h 22m
qua 9/210:59 am -
Nonstop3h 24m
Deal found 8/9![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/15:38 pm -
Nonstop3h 23m
sáb 9/510:59 am -
Nonstop3h 24m
Deal found 8/9![Frontier logo]()
$137
This Super.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/25:38 pm -
Nonstop3h 23m
sáb 9/510:59 am -
Nonstop3h 24m
Deal found 8/7![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/55:38 pm -
Nonstop3h 23m
sex 9/116:45 pm -
Nonstop3h 13m
Deal found 8/5![Frontier logo]()
$144
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/58:25 am -
Nonstop3h 10m
sex 9/1111:00 am -
Nonstop3h 05m
Deal found 8/5![Southwest logo]()
$235
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/66:10 am -
Nonstop3h 22m
dom 9/136:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/66:10 am -
Nonstop3h 22m
dom 9/206:45 pm -
Nonstop3h 13m
Deal found 8/7![Frontier logo]()
$142
This Priceline deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/104:20 pm -
Nonstop3h 28m
qui 9/108:24 pm -
1 stop7h 38m
Deal found 8/7![Frontier logo]()
$145
This Booking.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/114:20 pm -
Nonstop3h 28m
dom 9/136:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$143
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/134:20 pm -
Nonstop3h 28m
dom 9/206:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/174:20 pm -
Nonstop3h 28m
dom 9/206:45 pm -
Nonstop3h 13m
Deal found 8/9![Frontier logo]()
$141
This Expedia deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/204:20 pm -
Nonstop3h 28m
dom 9/276:45 pm -
Nonstop3h 13m
Deal found 8/7![Frontier logo]()
$138
One-way flights from Houston to OntarioSearch for one-way flight options from Houston to Ontario. Find affordable one-way fares based on user searches. Data last updated agosto 9, 2026.
Search for one-way flight options from Houston to Ontario. Find affordable one-way fares based on user searches. Data last updated agosto 9, 2026.
This Super.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 8/306:10 am -
Nonstop3h 22m
Deal found 8/8![Frontier logo]()
$63
This Super.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/274:20 pm -
Nonstop3h 28m
Deal found 8/6![Frontier logo]()
$68
This Frontier deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 10/44:20 pm -
Nonstop3h 28m
Deal found 8/6![Frontier logo]()
$69
This Super.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/66:10 am -
Nonstop3h 22m
Deal found 8/7![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/55:38 pm -
Nonstop3h 23m
Deal found 8/7![Frontier logo]()
$73
This Frontier deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/51:05 pm -
Nonstop3h 32m
Deal found 8/9![Frontier logo]()
$74
This Super.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/15:38 pm -
Nonstop3h 23m
Deal found 8/6![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 9/144:20 pm -
Nonstop3h 28m
Deal found 8/5![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 10/54:20 pm -
Nonstop3h 28m
Deal found 8/7![Frontier logo]()
$84
This Booking.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 8/265:38 pm -
Nonstop3h 23m
Deal found 8/5![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/175:20 am -
1 stop8h 02m
Deal found 8/7![Frontier logo]()
$87
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/612:15 pm -
Nonstop3h 15m
Deal found 8/7![Southwest logo]()
$118
Find flight deals from Houston to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 9, 2026.
Round-trip from | $135 (Super.com) |
|---|---|
One-way from | $63 (Super.com) |
Popular in | April |
Cheapest in | August |
Average price | $176 |
Cheapflights Fare Finder
Customize your flight search to find flights from Houston to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 9, 2026.
Use the filters below to find and compare flights from Houston to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonOntario
HOU Houston Hobby - ONT Ontario
HOUONT
Houston Hobby
sáb 9/5
8:25 am-9:35 am
Nonstop3h 10m
Ontario
sex 9/11
12:25 pm-8:10 pm
1 stop5h 45m
$245
HoustonOntario
HOU Houston Hobby - ONT Ontario
HOUONT
Houston Hobby
qua 9/2
11:25 am-6:55 pm
2 stops9h 30m
Ontario
sáb 9/5
11:55 am-5:00 pm
Nonstop3h 05m
$261
HoustonOntario
IAH Houston George Bush Intcntl - ONT Ontario
IAHONT
Houston George Bush Intcntl
sáb 9/5
11:28 am-10:23 pm
2 stops12h 55m
Ontario
sex 9/11
6:00 am-9:30 pm
2 stops13h 30m
$265
HoustonOntario
HOU Houston Hobby - ONT Ontario
HOUONT
Houston Hobby
qua 10/14
1:25 pm-2:45 pm
Nonstop3h 20m
Ontario
qui 10/15
6:55 pm-1:20 am
1 stop4h 25m
$267
HoustonOntario
IAH Houston George Bush Intcntl - ONT Ontario
IAHONT
Houston George Bush Intcntl
ter 9/22
2:25 pm-10:40 pm
2 stops10h 15m
Ontario
sáb 10/3
12:17 pm-11:54 pm
1 stop9h 37m
$282
HoustonOntario
IAH Houston George Bush Intcntl - ONT Ontario
IAHONT
Houston George Bush Intcntl
sáb 8/29
2:28 pm-10:45 pm
2 stops10h 17m
Ontario
ter 9/1
7:05 am-5:40 pm
1 stop8h 35m
$282
Quickest round-trip
HoustonOntario
HOU Houston Hobby - ONT Ontario
HOUONT
Houston Hobby
sex 10/2
8:00 am-9:25 am
Nonstop3h 25m
Ontario
seg 10/5
2:40 pm-7:40 pm
Nonstop3h 00m
$305
HoustonOntario
IAH Houston George Bush Intcntl - ONT Ontario
IAHONT
Houston George Bush Intcntl
sáb 9/5
4:47 pm-6:12 pm
Nonstop3h 25m
Ontario
sex 9/11
6:00 am-11:15 am
Nonstop3h 15m
$327
HoustonOntario
IAH Houston George Bush Intcntl - ONT Ontario
IAHONT
Houston George Bush Intcntl
seg 9/21
8:30 pm-9:59 pm
Nonstop3h 29m
Ontario
sáb 9/26
6:00 am-11:15 am
Nonstop3h 15m
$347
HoustonOntario
IAH Houston George Bush Intcntl - ONT Ontario
IAHONT
Houston George Bush Intcntl
dom 10/18
8:30 pm-9:59 pm
Nonstop3h 29m
Ontario
sáb 10/24
6:00 am-11:15 am
Nonstop3h 15m
$353
Showing 1-10 of 42 resultsSorted by cheapest first
Best time to book a flight from Houston to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Houston with our price prediction graph.
HO1-ONT
IAH-ONT
HOU-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Houston to Ontario
HO1-ONT
IAH-ONT
HOU-ONT
What is the cheapest month to book a flight from Houston to Ontario?
Currently, September is the cheapest month in which you can book a flight from Houston to Ontario (average of $179). Flying from Houston to Ontario in April is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from HOU to ONT?
Find hourly flight availability from Houston to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 9, 2026.
A simple way to save on the total cost of your ticket is to fly from Houston to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the evening.
How much does it cost to fly round-trip from Houston to Ontario?
Airfare is below average for this route at the moment.
Houston to Ontario flights typically cost between $146 and $246 in September.The cheapest round-trip price found within the last 5 days was $135 on Frontier (Sep 2-Sep 5).
How far ahead should I book a flight from Houston to Ontario?
The best time to book flights from Houston to Ontario is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Houston to Ontario?
Use this chart to determine the cheapest time to fly round-trip from Houston to Ontario. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Houston to Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Houston to Ontario flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Ontario trip
Our travel experts
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated agosto 9, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Houston to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Comfort
8.0
Overall
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from Houston to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Houston to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Houston to Ontario by cabin class
Find flights from Houston to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on agosto 9, 2026.
Houston and Ontario flights
Browse other Houston and Ontario flight options. Last updated on agosto 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Houston to Ontario
Discover the top 4 airlines that operate flights from Houston to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$69 | Average$197 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$173 | Average$371 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$186 | Average$383 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$235 | Average$376 | FlexibilityNo cancel fee | On-time63% |