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Galveston

$100+ Cheap flights from Ontario (ONT) to Galveston, TX

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HOU
Apr 1 — Apr 81
Wed 4/1
Wed 4/8
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Galveston are usually found in April or October, booked 25 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Ontario to Galveston

Cheapest flights from Ontario to Galveston
Explore the most affordable flight options available from Ontario to Galveston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 2, 2026.

This Delta deal was found by Cheapflights users on 2/27. 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.
Sat 5/212:49 pm
ONT
-
HOU
1 stop8h 18m
Delta
Tue 5/56:00 am
HOU
-
ONT
1 stop7h 36m
Delta
Deal found 2/27$226
This Southwest deal was found by Cheapflights users on 2/26. 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.
Thu 4/161:50 pm
ONT
-
HOU
Nonstop3h 00m
Southwest
Mon 4/208:05 am
HOU
-
ONT
Nonstop3h 25m
Southwest
Deal found 2/26$236
This Delta deal was found by Cheapflights users on 2/27. 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.
Sat 5/910:00 pm
ONT
-
HOU
1 stop9h 27m
Delta
Wed 5/131:06 pm
HOU
-
ONT
1 stop10h 42m
Delta
Deal found 2/27$237
This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:59 pm
ONT
-
HOU
1 stop7h 27m
American Airlines
Tue 4/1412:42 pm
HOU
-
ONT
1 stop7h 55m
American Airlines
Deal found 2/26$255
This Southwest deal was found by Cheapflights users on 2/27. 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.
Sat 5/211:50 am
ONT
-
HOU
Nonstop3h 05m
Southwest
Tue 5/59:00 pm
HOU
-
ONT
Nonstop3h 25m
Southwest
Deal found 2/27$258
This American Airlines deal was found by Cheapflights users on 2/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:59 pm
ONT
-
HOU
1 stop7h 27m
American Airlines
Mon 4/206:01 am
HOU
-
ONT
1 stop6h 08m
American Airlines
Deal found 2/26$264
This Delta deal was found by Cheapflights users on 2/26. 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.
Fri 5/112:49 pm
ONT
-
HOU
1 stop8h 18m
Delta
Tue 5/51:31 pm
HOU
-
ONT
1 stop9h 29m
Delta
Deal found 2/26$267
This Southwest deal was found by Cheapflights users on 2/27. 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.
Fri 5/11:50 pm
ONT
-
HOU
Nonstop3h 00m
Southwest
Tue 5/59:00 pm
HOU
-
ONT
Nonstop3h 25m
Southwest
Deal found 2/27$268
This Southwest deal was found by Cheapflights users on 2/28. 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.
Wed 4/1512:55 pm
ONT
-
HOU
Nonstop3h 00m
Southwest
Mon 4/208:05 am
HOU
-
ONT
Nonstop3h 25m
Southwest
Deal found 2/28$275

Find flight deals from Ontario to Galveston

Keep the following information in mind while searching for Ontario to Galveston flight deals. Data was last updated March 2, 2026.

Round-trip from

$226
(Delta)

One-way from

$100
(Southwest)

Popular in

February

Cheapest in

April

Average price

$247
From Ontario to Galveston
Search Deals
One-way flight from Ontario to Galveston
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Galveston 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 March 2, 2026.
Use the filters below to find and compare flights from Ontario to Galveston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Sat 5/9

6:00 am-1:50 pm

1 stop5h 50m

Houston Hobby

Wed 5/13

9:00 pm-10:25 pm

Nonstop3h 25m

$349

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Wed 3/25

10:35 am-8:30 pm

2 stops7h 55m

Houston Hobby

Thu 3/26

5:40 am-9:20 am

1 stop5h 40m

$358

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Fri 3/27

5:25 am-2:00 pm

2 stops6h 35m

Houston Hobby

Sat 4/4

5:30 am-9:50 am

1 stop6h 20m

$416

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Fri 4/10

12:50 pm-10:50 pm

1 stop8h 00m

Houston Hobby

Sun 4/12

5:40 am-9:10 am

1 stop5h 30m

$421

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Sun 3/29

11:55 pm-11:05 am

1 stop9h 10m

Houston Hobby

Thu 4/9

6:15 am-10:55 am

1 stop6h 40m

$435

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Fri 4/17

5:30 am-1:55 pm

2 stops6h 25m

Houston Hobby

Sun 4/26

2:10 pm-8:10 pm

2 stops8h 00m

$470

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Mon 3/23

2:45 pm-7:40 pm

Nonstop2h 55m

Houston Hobby

Thu 3/26

8:55 pm-10:30 pm

Nonstop3h 35m

$612

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Sun 3/22

10:25 pm-10:23 am

1 stop9h 58m

Houston Hobby

Tue 3/24

2:13 pm-11:51 pm

2 stops11h 38m

$617

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Wed 3/11

1:20 pm-6:15 pm

Nonstop2h 55m

Houston Hobby

Sun 3/15

6:55 pm-11:40 pm

1 stop6h 45m

$659

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Fri 5/15

1:50 pm-6:50 pm

Nonstop3h 00m

Houston Hobby

Sun 5/17

1:55 pm-3:20 pm

Nonstop3h 25m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Ontario to Galveston

Have a flexible travel schedule? Discover the best time to fly to Galveston from Ontario with our price prediction graph.
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 Ontario to Galveston

How far ahead should I book a flight from Ontario to Galveston?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Galveston. Price data was last updated on February 27, 2026.

To ensure you get the cheapest price possible for a flight from Ontario to Galveston, you should look to book at least 25 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ontario to Galveston?

Currently, January is the cheapest month in which you can book a flight from Ontario to Galveston (average of $54). Flying from Ontario to Galveston in August is currently the most expensive (average of $100). 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 ONT to G4L?

Find hourly flight availability from Ontario to Galveston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 2, 2026.

One of the essential ways to save on airfare from Ontario to Galveston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 54% on airfare.

Reviews of airlines servicing Galveston

Get insights into the airlines that provide service to Galveston. 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 Galveston. Reviews last updated March 2, 2026.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Ontario to Galveston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,306 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,306 reviews
Southwest
8.0
Very good
4,306 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,376 reviews
Southwest
8.0
Very good
4,306 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.1
Good
11,369 reviews
Southwest
8.0
Very good
4,306 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,040 reviews
Southwest
8.0
Very good
4,306 reviews

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Galveston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Galveston?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Galveston. You should not have trouble finding flights to Galveston from Ontario; the airport handles an average of 0 outbound flights to Galveston per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Ontario airport to Galveston. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Galveston?

    There are many flights that can get you from Ontario to Galveston in 5h 50m. Fly via Southwest to get the fastest option. The distance between Ontario and Galveston is about 1341 mi.

  • What are the cheapest airlines to fly from Ontario to Galveston one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Ontario to Galveston for a low price.

  • What are the cheapest flights from Ontario to Galveston?

    The cheapest flight price from Ontario to Galveston is $128. On average you can expect to pay $307. The most popular route, (Ontario - Houston Hobby), can usually be booked for $150.

  • Can I find deals for flights from Ontario to Galveston that include hotel bookings?

    Yes. In addition to deals on Ontario to Galveston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Galveston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Galveston.

  • Can I find deals for business class flights from Ontario to Galveston?

    Yes. Cheapflights offers flight deals from Ontario to Galveston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Galveston?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Galveston (average of $54). Flying from Ontario to Galveston in August is currently the most expensive (average of $100). 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.

See more FAQs

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Alternative routes for Ontario to Galveston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ontario to Galveston

Discover the top 4 airlines that operate flights from Ontario to Galveston. 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 March 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$193FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$168Average$353FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$191Average$388FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$210Average$391FlexibilityNo cancel feeOn-time71%

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