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$210+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ONT
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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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 November 10, 2025.

This American Airlines deal was found by Cheapflights users on 11/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:47 pmDAY - ONT
1 stop10h 20mAmerican Airlines
Sun 12/711:59 pmONT - DAY
1 stop8h 38mAmerican Airlines
Deal found 11/9$289
This Delta deal was found by Cheapflights users on 11/10. 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.
Fri 12/122:55 pmDAY - ONT
2 stops12h 03mDelta
Mon 12/1510:25 pmONT - DAY
1 stop9h 05mDelta
Deal found 11/10$294
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 11/241:22 pmDAY - ONT
1 stop9h 20mDelta
Tue 12/210:25 pmONT - DAY
1 stop9h 05mDelta
Deal found 11/10$324
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 11/244:10 pmDAY - ONT
1 stop9h 54mDelta
Wed 12/34:49 pmONT - DAY
2 stops14h 41mDelta
Deal found 11/10$354
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 12/119:01 amDAY - ONT
1 stop6h 31mUnited Airlines
Sun 12/146:41 pmONT - DAY
2 stops13h 27mUnited Airlines
Deal found 11/9$367
This Delta deal was found by Cheapflights users on 11/10. 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.
Fri 11/214:10 pmDAY - ONT
1 stop9h 54mDelta
Thu 12/410:25 pmONT - DAY
1 stop9h 05mDelta
Deal found 11/10$369
This Delta deal was found by Cheapflights users on 11/10. 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.
Sun 11/234:10 pmDAY - ONT
2 stops10h 42mDelta
Tue 12/210:25 pmONT - DAY
1 stop9h 05mDelta
Deal found 11/10$374
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 amDAY - ONT
2 stops13h 34mUnited Airlines
Tue 12/26:41 pmONT - DAY
2 stops13h 27mUnited Airlines
Deal found 11/10$379
This Delta deal was found by Cheapflights users on 11/9. 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.
Thu 12/42:55 pmDAY - ONT
2 stops12h 03mDelta
Sun 12/712:12 pmONT - DAY
1 stop7h 59mDelta
Deal found 11/9$384
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/258:55 amDAY - ONT
1 stop6h 38mUnited Airlines
Wed 12/36:41 pmONT - DAY
2 stops13h 27mUnited Airlines
Deal found 11/10$419
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Mon 11/247:46 amDAY - ONT
1 stop9h 18mAmerican Airlines
Mon 12/111:59 pmONT - DAY
1 stop8h 33mAmerican Airlines
Deal found 11/10$439

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 November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(Delta)

One-way from

$210
(Delta)

Popular in

July

Cheapest in

April

Average price

$420
Provider with most accurate pricing for Dayton-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-Ontario flights.
Search Deals
From Dayton to Ontario
Search Deals
One-way flight from Dayton to Ontario
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 10, 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

Thu 12/11

6:34 pm-11:04 pm

1 stop7h 30m

Ontario

Sun 12/14

12:12 pm-11:11 pm

1 stop7h 59m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 2/28

4:00 pm-9:07 pm

1 stop8h 07m

Ontario

Wed 3/4

10:20 pm-10:57 am

1 stop9h 37m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

Fri 12/12

2:55 pm-11:58 pm

2 stops12h 03m

Ontario

Mon 12/15

10:25 pm-10:30 am

1 stop9h 05m

$294

DaytonOntario

DAY - ONT

DAYONT

Dayton

Wed 3/25

6:00 am-11:38 am

1 stop8h 38m

Ontario

Fri 4/3

10:30 pm-10:38 am

1 stop9h 08m

$314

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 1/29

6:00 am-11:54 am

1 stop8h 54m

Ontario

Sun 2/1

10:30 pm-10:52 am

1 stop9h 22m

$314

DaytonOntario

DAY - ONT

DAYONT

Dayton

Mon 11/24

1:22 pm-7:42 pm

1 stop9h 20m

Ontario

Tue 12/2

10:25 pm-10:30 am

1 stop9h 05m

$324

DaytonOntario

DAY - ONT

DAYONT

Dayton

Wed 3/25

6:00 am-11:38 am

1 stop8h 38m

Ontario

Thu 4/2

10:30 pm-10:38 am

1 stop9h 08m

$354

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 12/11

9:01 am-12:32 pm

1 stop6h 31m

Ontario

Sun 12/14

6:41 pm-11:08 am

2 stops13h 27m

$367

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 2/28

10:00 am-7:00 pm

2 stops12h 00m

Ontario

Wed 3/4

11:59 pm-11:36 am

1 stop8h 37m

$384

DaytonOntario

DAY - ONT

DAYONT

Dayton

Wed 12/17

11:43 am-9:49 pm

2 stops13h 06m

Ontario

Wed 1/14

1:24 pm-10:39 pm

1 stop6h 15m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 21 results
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Compare providers for flights from Dayton to Ontario

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 Dayton to Ontario in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice 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 Dayton-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dayton-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dayton-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dayton-Ontario 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 Dayton-Ontario 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 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, October is the cheapest month in which you can book a flight from Dayton to Ontario (average of $106). Flying from Dayton to Ontario in April is currently the most expensive (average of $166). 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 November 10, 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 26% 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 November 10, 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
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Food

7.3

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
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Food

7.3

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
9,012 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Food

7.3

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
11,045 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Overall

7.9

Food

7.3

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 7h 30m. 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 40% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $215. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Dayton to Ontario for a low price.

  • 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, October is the cheapest month in which you can book a flight from Dayton to Ontario (average of $106). Flying from Dayton to Ontario in April is currently the most expensive (average of $166). 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.

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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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$383FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$449FlexibilityNo cancel feeOn-time71%

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