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Ontario

$178+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ONT
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap 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 December 23, 2025.

This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Tue 12/301:40 pmONT - DAY
1 stop5h 42mUnited Airlines
Deal found 12/22$509
This Delta deal was found by Cheapflights users on 12/21. 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 12/2411:59 amDAY - ONT
2 stops13h 34mDelta
Sun 1/410:29 pmONT - DAY
1 stop9h 21mDelta
Deal found 12/21$544
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/255:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Sat 12/271:40 pmONT - DAY
1 stop5h 42mUnited Airlines
Deal found 12/21$579
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:45 amDAY - ONT
1 stop6h 53mUnited Airlines
Mon 12/291:40 pmONT - DAY
1 stop5h 42mUnited Airlines
Deal found 12/22$584
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/2410:38 amDAY - ONT
2 stops13h 29mUnited Airlines
Sun 1/46:39 pmONT - DAY
2 stops12h 24mUnited Airlines
Deal found 12/21$630
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Mon 12/291:40 pmONT - DAY
1 stop5h 42mUnited Airlines
Deal found 12/22$669
This United Airlines deal was found by Cheapflights users on 12/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:21 pmDAY - ONT
1 stop8h 04mUnited Airlines
Sun 12/286:00 amONT - DAY
2 stops11h 22mUnited Airlines
Deal found 12/22$710

Find 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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(Delta)

One-way from

$178
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$488
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 ($2 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 December 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 December 23, 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

Sat 1/17

6:14 pm-10:48 pm

1 stop7h 34m

Ontario

Sat 1/24

10:58 am-10:32 pm

1 stop8h 34m

$309

DaytonOntario

DAY - ONT

DAYONT

Dayton

Wed 1/21

2:37 pm-9:05 pm

1 stop9h 28m

Ontario

Wed 1/28

10:30 pm-10:50 am

1 stop9h 20m

$309

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 1/22

6:00 am-11:31 am

1 stop8h 31m

Ontario

Mon 1/26

10:30 pm-10:50 am

1 stop9h 20m

$309

DaytonOntario

DAY - ONT

DAYONT

Dayton

Wed 1/21

2:37 pm-9:05 pm

1 stop9h 28m

Ontario

Tue 1/27

10:30 pm-10:50 am

1 stop9h 20m

$309

DaytonOntario

DAY - ONT

DAYONT

Dayton

Tue 1/20

2:37 pm-9:05 pm

1 stop9h 28m

Ontario

Sun 1/25

10:30 pm-10:50 am

1 stop9h 20m

$334

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 2/21

4:00 pm-9:05 pm

1 stop8h 05m

Ontario

Tue 2/24

10:20 pm-10:55 am

1 stop9h 35m

$349

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 2/21

4:00 pm-9:05 pm

1 stop8h 05m

Ontario

Mon 2/23

10:20 pm-10:55 am

1 stop9h 35m

$349

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 1/22

6:00 am-11:31 am

1 stop8h 31m

Ontario

Sun 1/25

10:30 pm-10:50 am

1 stop9h 20m

$364

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 2/19

2:39 pm-9:05 pm

1 stop9h 26m

Ontario

Wed 2/25

10:20 pm-10:55 am

1 stop9h 35m

$364

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 2/19

2:39 pm-9:05 pm

1 stop9h 26m

Ontario

Mon 2/23

10:20 pm-10:55 am

1 stop9h 35m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 December 23, 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 December 23, 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
8,014 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Comfort

7.9

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
8,014 reviews
Delta
7.9
Good
8,014 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Comfort

7.9

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
9,105 reviews
Delta
7.9
Good
8,014 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Comfort

7.9

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
11,054 reviews
Delta
7.9
Good
8,014 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Food

7.3

Crew

8.5

Comfort

7.9

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?

    American Airlines and Delta can get you from Dayton to Ontario in just under 7h 34m. Your travel time can differ by up to 1h 54m. Dayton and Ontario 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 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.

  • 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.

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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$254Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$357FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$458FlexibilityNo cancel feeOn-time71%

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