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$195+ Cheap flights from Dayton to Ontario (DAY - 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ONT
août 25 — sept. 11
lun. 8/25
lun. 9/1
1 adult, Economy
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Cheap flight deals from Dayton to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) 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 août 20, 2025.

Round-trip from

$289
(Delta)

One-way from

$195
(Delta)

Popular in

July

Cheapest in

April

Average price

$418
From Dayton to Ontario
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One-way flight from Dayton to Ontario
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Dayton to Ontario

Cheapest flights from Dayton to Ontario
Explore the most affordable flight options available from Dayton to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on août 20, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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.
ven. 10/241:29 pmDAY - ONT
1 stop8h 50mDelta
lun. 10/2710:00 pmONT - DAY
1 stop9h 24mDelta
Deal found 8/18$289
This Delta deal was found by Cheapflights users on 8/17. 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.
mer. 11/123:55 pmDAY - ONT
1 stop9h 46mDelta
lun. 11/175:05 pmONT - DAY
2 stops14h 20mDelta
Deal found 8/17$294
This American Airlines deal was found by Cheapflights users on 8/18. 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.
sam. 9/206:06 amDAY - ONT
1 stop6h 57mAmerican Airlines
mar. 9/3012:47 pmONT - DAY
1 stop7h 50mAmerican Airlines
Deal found 8/18$339
This Delta deal was found by Cheapflights users on 8/18. 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.
ven. 10/241:29 pmDAY - ONT
1 stop8h 50mDelta
mer. 10/2911:36 amONT - DAY
1 stop8h 08mDelta
Deal found 8/18$362
This American Airlines deal was found by Cheapflights users on 8/18. 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.
sam. 8/306:46 pmDAY - ONT
1 stop7h 02mAmerican Airlines
mar. 9/211:59 pmONT - DAY
1 stop9h 13mAmerican Airlines
Deal found 8/18$364
This Delta deal was found by Cheapflights users on 8/18. 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.
sam. 8/304:30 pmDAY - ONT
2 stops9h 10mDelta
mar. 9/211:45 amONT - DAY
1 stop8h 38mDelta
Deal found 8/18$369
This Delta deal was found by Cheapflights users on 8/19. 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.
mer. 8/276:00 amDAY - ONT
1 stop7h 35mDelta
mer. 9/311:45 amONT - DAY
1 stop8h 38mDelta
Deal found 8/19$379
This American Airlines deal was found by Cheapflights users on 8/18. 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.
mer. 8/278:45 amDAY - ONT
2 stops10h 39mAmerican Airlines
mer. 9/36:10 amONT - DAY
2 stops11h 10mAmerican Airlines
Deal found 8/18$389

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton 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 août 20, 2025.
Use the filters below to find and compare flights from Dayton to Ontario that are best for you.

Fly from

Dayton

Fly to

Ontario

Route

Depart

Return

Price

DaytonOntario

DAY - ONT

DAYONT

Dayton

jeu. 9/11

4:36 pm-10:23 pm

1 stop8h 47m

Ontario

mer. 9/17

11:55 am-11:07 pm

1 stop8h 12m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

ven. 10/24

3:17 pm-10:22 pm

1 stop10h 05m

Ontario

sam. 10/25

7:05 am-4:45 pm

1 stop6h 40m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

ven. 10/24

1:29 pm-7:19 pm

1 stop8h 50m

Ontario

lun. 10/27

10:00 pm-10:24 am

1 stop9h 24m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

mer. 11/12

3:55 pm-10:41 pm

1 stop9h 46m

Ontario

lun. 11/17

10:59 pm-10:25 am

1 stop8h 26m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

sam. 9/20

6:06 am-10:03 am

1 stop6h 57m

Ontario

mar. 9/30

12:47 pm-11:37 pm

1 stop7h 50m

$339

DaytonOntario

DAY - ONT

DAYONT

Dayton

ven. 10/24

1:29 pm-7:19 pm

1 stop8h 50m

Ontario

mer. 10/29

11:36 am-10:44 pm

1 stop8h 08m

$362

DaytonOntario

DAY - ONT

DAYONT

Dayton

sam. 8/30

6:46 pm-10:48 pm

1 stop7h 02m

Ontario

mar. 9/2

11:59 pm-12:12 pm

1 stop9h 13m

$364

DaytonOntario

DAY - ONT

DAYONT

Dayton

ven. 10/24

1:29 pm-7:19 pm

1 stop8h 50m

Ontario

dim. 10/26

10:00 pm-10:24 am

1 stop9h 24m

$364

DaytonOntario

DAY - ONT

DAYONT

Dayton

sam. 8/30

4:30 pm-10:40 pm

2 stops9h 10m

Ontario

mar. 9/2

11:45 am-11:23 pm

1 stop8h 38m

$369

DaytonOntario

DAY - ONT

DAYONT

Dayton

dim. 8/31

6:00 am-10:20 am

1 stop7h 20m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 15 results
1
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Best time to book a flight from Dayton to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dayton 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 Dayton to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Dayton to Ontario (average of $246). Flying from Dayton to Ontario in March is currently the most expensive (average of $328). 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 DAY to ONT?

Find hourly flight availability from Dayton 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 août 20, 2025.

One of the essential ways to save on airfare from Dayton to Ontario 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 27% on airfare.

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 août 20, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Dayton 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.
Delta
8.0
Very good
7,982 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • How long is the flight from Dayton to Ontario?

    Delta can get you from Dayton to Ontario in just under 8h 47m. Your travel time can differ by up to . Dayton and Ontario are separated by a distance of 1873 mi.

  • What are the cheapest airlines flying from Dayton to Ontario round-trip?

    Flying on Delta is currently your cheapest option to Ontario, with prices starting at $254. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $288 and $288, respectively. Delta is priced at 41% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dayton to Ontario 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 Dayton to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Dayton to Ontario (average of $246). Flying from Dayton to Ontario in March is currently the most expensive (average of $328). 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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Top 3 airlines flying from Dayton to Ontario

Discover the top 3 airlines that operate flights from Dayton 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 août 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$383FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$426FlexibilityNo cancel feeOn-time71%

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