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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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DAY
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/3. 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 12/171:34 pmONT - DAY
1 stop5h 55mUnited Airlines
Wed 12/315:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Deal found 12/3$359
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/251:40 pmONT - DAY
1 stop5h 42mUnited Airlines
Wed 12/315:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Deal found 12/2$379
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/161:34 pmONT - DAY
1 stop5h 55mUnited Airlines
Wed 12/315:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Deal found 12/2$414
This Delta deal was found by Cheapflights users on 12/3. 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 12/510:25 pmONT - DAY
1 stop9h 05mDelta
Wed 12/176:00 amDAY - ONT
1 stop7h 31mDelta
Deal found 12/3$439
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/179:59 amONT - DAY
2 stops8h 56mAmerican Airlines
Wed 12/317:07 amDAY - ONT
2 stops12h 00mAmerican Airlines
Deal found 12/3$442
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Fri 12/55:05 amONT - DAY
2 stops11h 12mUnited Airlines
Wed 12/1711:43 amDAY - ONT
2 stops11h 59mUnited Airlines
Deal found 12/3$449
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Sun 12/141:34 pmONT - DAY
1 stop5h 55mUnited Airlines
Wed 12/315:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Deal found 12/2$459
This United Airlines deal was found by Cheapflights users on 12/4. 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.
Thu 12/255:05 amONT - DAY
2 stops8h 41mUnited Airlines
Thu 1/15:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Deal found 12/4$464
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/41:34 pmONT - DAY
1 stop5h 55mUnited Airlines
Tue 12/169:01 amDAY - ONT
1 stop6h 31mUnited Airlines
Deal found 12/3$484
This Delta deal was found by Cheapflights users on 12/3. 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 12/1810:25 pmONT - DAY
1 stop9h 05mDelta
Mon 12/224:00 pmDAY - ONT
1 stop10h 23mDelta
Deal found 12/3$491

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$359
(United Airlines)

One-way from

$189
(Delta)

Popular in

March

Cheapest in

September

Average price

$445
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. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 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

Wed 12/17

1:34 pm-10:29 pm

1 stop5h 55m

Dayton

Wed 12/31

5:21 pm-10:25 pm

1 stop8h 04m

$359

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Wed 1/7

1:24 pm-10:39 pm

1 stop6h 15m

Dayton

Sat 1/10

8:30 am-12:47 pm

1 stop7h 17m

$379

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 12/25

1:40 pm-10:22 pm

1 stop5h 42m

Dayton

Wed 12/31

5:21 pm-10:25 pm

1 stop8h 04m

$379

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 12/25

10:50 am-9:54 pm

1 stop8h 04m

Dayton

Thu 1/1

12:05 pm-6:16 pm

1 stop9h 11m

$404

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Wed 12/24

1:40 pm-10:22 pm

1 stop5h 42m

Dayton

Wed 12/31

5:21 pm-10:25 pm

1 stop8h 04m

$414

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Tue 12/16

1:34 pm-10:29 pm

1 stop5h 55m

Dayton

Wed 12/31

5:21 pm-10:25 pm

1 stop8h 04m

$414

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 12/25

1:40 pm-10:22 pm

1 stop5h 42m

Dayton

Thu 1/1

5:21 pm-10:25 pm

1 stop8h 04m

$459

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Sun 12/14

1:34 pm-10:29 pm

1 stop5h 55m

Dayton

Wed 12/31

5:21 pm-10:25 pm

1 stop8h 04m

$459

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Mon 3/2

10:20 pm-10:55 am

1 stop9h 35m

$189

OntarioDayton

ONT - DAY

ONTDAY

Ontario

Thu 12/25

11:15 am-9:02 pm

1 stop6h 47m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 20 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Dayton flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $103). Flying from Ontario to Dayton in November is currently the most expensive (average of $169). 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 December 4, 2025.

It’s typically best to fly out from Ontario to Dayton in the evening. Doing so could potentially save you 18% on the flight price compared to flying in the afternoon, 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 December 4, 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
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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
9,066 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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
11,047 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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 5h 55m. Fly via United Airlines 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 Delta, from $288, and United Airlines, from $288. American Airlines is currently priced 34% below the average price you’ll pay for this route.

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

    $131 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $183 and $211, 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 $103). Flying from Ontario to Dayton in November is currently the most expensive (average of $169). 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
Xenia
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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$363FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$402FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$500FlexibilityNo cancel feeOn-time71%

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