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$189+ Cheap flights from Ontario to Dayton (ONT - DAY)

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DAY
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Dayton

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Dayton (DAY). 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 September 11, 2025.

Round-trip from

$289
(United Airlines)

One-way from

$189
(Delta)

Popular in

March

Cheapest in

February

Average price

$346
From Ontario to Dayton
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One-way flight from Ontario to Dayton
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Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Dayton

Cheapest flights from Ontario to Dayton
Explore the most affordable flight options available from Ontario to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:33 pmONT - DAY
1 stop5h 29mUnited Airlines
Sat 11/15:41 pmDAY - ONT
1 stop7h 50mUnited Airlines
Deal found 9/9$289
This American Airlines deal was found by Cheapflights users on 9/10. 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 11/712:55 pmONT - DAY
2 stops8h 04mAmerican Airlines
Tue 11/117:06 amDAY - ONT
2 stops11h 57mAmerican Airlines
Deal found 9/10$299
This Delta deal was found by Cheapflights users on 9/10. 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.
Wed 10/2911:36 amONT - DAY
1 stop8h 08mDelta
Tue 11/46:05 amDAY - ONT
1 stop7h 21mDelta
Deal found 9/10$314
This Delta deal was found by Cheapflights users on 9/10. 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 11/1511:45 amONT - DAY
1 stop8h 25mDelta
Wed 11/196:00 amDAY - ONT
1 stop7h 40mDelta
Deal found 9/10$333
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:00 pmONT - DAY
1 stop9h 35mDelta
Tue 11/116:34 pmDAY - ONT
1 stop7h 30mDelta
Deal found 9/9$339
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:15 amONT - DAY
1 stop9h 05mAmerican Airlines
Thu 10/26:06 amDAY - ONT
1 stop6h 59mAmerican Airlines
Deal found 9/8$354
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:10 amONT - DAY
2 stops10h 52mUnited Airlines
Thu 10/29:25 amDAY - ONT
1 stop6h 26mUnited Airlines
Deal found 9/8$359

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Dayton 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 September 11, 2025.
Use the filters below to find and compare flights from Ontario to Dayton that are best for you.

Fly from

Ontario

Fly to

Dayton

Route

Depart

Return

Price

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Fri 11/7

12:55 pm-11:59 pm

2 stops8h 04m

Dayton

Tue 11/11

9:31 am-4:03 pm

2 stops9h 32m

$299

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Fri 11/7

10:00 pm-10:35 am

1 stop9h 35m

Dayton

Tue 11/11

4:10 pm-11:04 pm

1 stop9h 54m

$314

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Wed 10/29

11:36 am-10:44 pm

1 stop8h 08m

Dayton

Tue 11/4

6:05 am-10:26 am

1 stop7h 21m

$314

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Wed 10/29

6:38 pm-9:52 am

2 stops12h 14m

Dayton

Sat 11/1

6:55 am-12:33 pm

2 stops8h 38m

$327

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Sat 11/15

11:45 am-11:10 pm

1 stop8h 25m

Dayton

Thu 11/20

6:34 pm-11:04 pm

1 stop7h 30m

$333

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Sat 11/15

11:45 am-11:10 pm

1 stop8h 25m

Dayton

Tue 11/18

1:22 pm-7:37 pm

1 stop9h 15m

$333

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Sat 11/15

11:45 am-11:10 pm

1 stop8h 25m

Dayton

Wed 11/19

6:00 am-10:40 am

1 stop7h 40m

$333

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Tue 9/16

5:10 am-7:02 pm

2 stops10h 52m

Dayton

Thu 10/2

9:25 am-12:51 pm

1 stop6h 26m

$359

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Tue 9/16

7:05 am-5:52 pm

1 stop7h 47m

Dayton

Wed 9/24

1:16 pm-7:15 pm

1 stop8h 59m

$379

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Fri 10/3

10:00 pm-10:22 am

1 stop9h 22m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results
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Best time to book a flight from Ontario to Dayton

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

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Dayton (average of $325). Flying from Ontario to Dayton in March is currently the most expensive (average of $396). 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 DAY?

Find hourly flight availability from Ontario to Dayton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Ontario to Dayton in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Dayton

Get insights into the airlines that provide service to Dayton. 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 Dayton. Reviews last updated September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Ontario to Dayton 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
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Dayton. 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 Ontario to Dayton?

    There are many flights that can get you from Ontario to Dayton in 8h 04m. Fly via American Airlines, Delta, or United Airlines to get the fastest option. Ontario and Dayton are separated by a distance of 1873 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Ontario to Dayton round-trip from $288. Other airlines that can offer you cheap pricing are Delta, from $288, and United Airlines, from $313. American Airlines is currently priced 36% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Dayton (average of $325). Flying from Ontario to Dayton in March is currently the most expensive (average of $396). 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

Traveling to a place near Dayton?

Book flights to Dayton if you plan to visit one of these locations
Troy
Springfield
Xenia
Miamisburg
Richmond

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Top 3 airlines flying from Ontario to Dayton

Discover the top 3 airlines that operate flights from Ontario to Dayton. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$528FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$389FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$313Average$460FlexibilityNo cancel feeOn-time69%

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