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$299+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DAY
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap 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 July 27, 2026.

This Delta deal was found by Cheapflights users on 7/26. 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.
Tue 8/1812:00 pm
ONT
-
DAY
1 stop8h 56m
Delta
Sun 8/2311:26 am
DAY
-
ONT
1 stop10h 04m
Delta
Deal found 7/26$359
This Delta deal was found by Cheapflights users on 7/26. 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.
Tue 8/255:05 pm
ONT
-
DAY
2 stops14h 35m
Delta
Tue 9/16:00 am
DAY
-
ONT
1 stop7h 42m
Delta
Deal found 7/26$364
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 10/2511:15 pm
ONT
-
DAY
1 stop8h 23m
Delta
Tue 11/36:00 am
DAY
-
ONT
1 stop8h 08m
Delta
Deal found 7/24$369
This Delta deal was found by Cheapflights users on 7/26. 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.
Mon 8/2410:00 pm
ONT
-
DAY
1 stop9h 40m
Delta
Sat 8/296:00 am
DAY
-
ONT
1 stop7h 42m
Delta
Deal found 7/26$382
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 8/295:05 pm
ONT
-
DAY
2 stops14h 35m
Delta
Fri 10/23:27 pm
DAY
-
ONT
1 stop9h 57m
Delta
Deal found 7/26$387
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 9/1212:17 pm
ONT
-
DAY
1 stop7h 00m
Delta
Thu 9/176:00 am
DAY
-
ONT
1 stop8h 09m
Delta
Deal found 7/26$389
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 8/295:05 pm
ONT
-
DAY
2 stops14h 35m
Delta
Sat 10/36:00 am
DAY
-
ONT
2 stops13h 35m
Delta
Deal found 7/26$392
This Delta deal was found by Cheapflights users on 7/26. 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 9/115:15 pm
ONT
-
DAY
2 stops14h 24m
Delta
Thu 9/176:00 am
DAY
-
ONT
1 stop8h 09m
Delta
Deal found 7/26$394
This Delta deal was found by Cheapflights users on 7/22. 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 10/2412:18 pm
ONT
-
DAY
1 stop6h 44m
Delta
Sat 12/126:00 am
DAY
-
ONT
1 stop8h 27m
Delta
Deal found 7/22$405
This Delta deal was found by Cheapflights users on 7/22. 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.
Thu 10/2212:18 pm
ONT
-
DAY
1 stop7h 59m
Delta
Fri 12/112:55 pm
DAY
-
ONT
1 stop10h 19m
Delta
Deal found 7/22$424
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 9/212:00 pm
ONT
-
DAY
1 stop7h 03m
Delta
Sat 10/36:00 am
DAY
-
ONT
1 stop8h 05m
Delta
Deal found 7/26$429
This Delta deal was found by Cheapflights users on 7/26. 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.
Tue 9/15:05 pm
ONT
-
DAY
2 stops14h 35m
Delta
Mon 9/283:27 pm
DAY
-
ONT
1 stop9h 57m
Delta
Deal found 7/26$434

Find 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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$359
(Delta)

One-way from

$299
(American Airlines)

Popular in

July

Cheapest in

September

Average price

$854
Provider with most accurate pricing for Ontario-Dayton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Dayton flights.
Search Deals
From Ontario to Dayton
Search Deals
One-way flight from Ontario to Dayton
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 27, 2026.
Use the filters below to find and compare flights from Ontario to Dayton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Fri 8/28

10:00 pm-10:40 am

1 stop9h 40m

Dayton

Tue 9/1

6:00 am-10:42 am

1 stop7h 42m

$359

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 10/22

12:18 pm-11:17 pm

1 stop7h 59m

Dayton

Fri 12/11

2:55 pm-10:14 pm

1 stop10h 19m

$424

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 8/6

12:00 pm-11:56 pm

1 stop8h 56m

Dayton

Mon 8/10

3:08 pm-9:52 pm

1 stop9h 44m

$429

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Fri 10/23

11:15 pm-10:38 am

1 stop8h 23m

Dayton

Mon 10/26

6:00 am-11:06 am

1 stop8h 06m

$448
Quickest round-trip

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Wed 8/12

1:18 pm-10:45 pm

1 stop6h 27m

Dayton

Tue 8/18

9:00 am-12:50 pm

1 stop6h 50m

$494

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Sat 8/8

1:18 pm-10:55 pm

1 stop6h 37m

Dayton

Wed 8/12

9:00 am-12:50 pm

1 stop6h 50m

$529

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Sat 8/8

6:10 am-5:30 pm

1 stop8h 20m

Dayton

Sat 8/29

9:00 am-12:50 pm

1 stop6h 50m

$531

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Tue 9/22

9:01 am-10:45 pm

2 stops10h 44m

Dayton

Tue 10/20

9:30 am-12:46 pm

1 stop6h 16m

$535

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 8/13

10:00 pm-10:40 am

1 stop9h 40m

Dayton

Sun 8/16

3:06 pm-9:52 pm

1 stop9h 46m

$538
Cheapest one-way

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Wed 12/23

11:59 pm-11:35 am

1 stop8h 36m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Ontario to Dayton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Dayton in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Dayton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Dayton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Dayton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Dayton flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Dayton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, September is the cheapest month in which you can book a flight from Ontario to Dayton (average of $288). Flying from Ontario to Dayton in July is currently the most expensive (average of $854). 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.

How much does it cost to fly round-trip from Ontario to Dayton?

Airfare is typical for this route at the moment.

Ontario to Dayton flights typically cost between $313 and $437 in August.
The cheapest round-trip price found within the last 5 days was $359 on Delta (Aug 18-Aug 27).

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 July 27, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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
7.8
Good
8,490 reviews

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Boarding

8.1

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
7.8
Good
8,490 reviews
Delta
7.8
Good
8,490 reviews

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Boarding

8.1

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
10,043 reviews
Delta
7.8
Good
8,490 reviews

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Boarding

8.1

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
7.1
Good
11,843 reviews
Delta
7.8
Good
8,490 reviews

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Boarding

8.1

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 9h 40m. Fly via Delta to get the fastest option. Ontario and Dayton are separated by a distance of 1873 mi.

  • 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 United Airlines, from $288, and American Airlines, from $313. Delta is currently priced 41% below the average price you’ll pay for this route.

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

    $209 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $211 and $223, respectively.

  • 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, September is the cheapest month in which you can book a flight from Ontario to Dayton (average of $288). Flying from Ontario to Dayton in July is currently the most expensive (average of $854). 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
Huber Heights
Springfield
Troy
Greenville
Miamisburg

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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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$363FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$449FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$313Average$555FlexibilityNo cancel feeOn-time71%

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