HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$229+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ONT
May 9 — May 161
Sat 5/9
Sat 5/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dayton to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 9, 2026.

This Delta deal was found by Cheapflights users on 4/5. 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 4/306:00 am
DAY
-
ONT
1 stop8h 36m
Delta
Mon 5/410:15 pm
ONT
-
DAY
1 stop9h 28m
Delta
Deal found 4/5$369
This Delta deal was found by Cheapflights users on 4/6. 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 5/52:49 pm
DAY
-
ONT
2 stops11h 55m
Delta
Sat 5/910:00 pm
ONT
-
DAY
1 stop9h 30m
Delta
Deal found 4/6$374
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/58:21 am
DAY
-
ONT
2 stops11h 01m
American Airlines
Sat 5/99:33 am
ONT
-
DAY
2 stops9h 56m
American Airlines
Deal found 4/6$379
This American Airlines deal was found by Cheapflights users on 4/6. 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.
Sat 5/235:57 pm
DAY
-
ONT
1 stop7h 39m
American Airlines
Sat 5/3012:41 pm
ONT
-
DAY
1 stop8h 16m
American Airlines
Deal found 4/6$382
This Delta deal was found by Cheapflights users on 4/7. 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 4/306:00 am
DAY
-
ONT
1 stop8h 36m
Delta
Sun 5/310:15 pm
ONT
-
DAY
1 stop9h 28m
Delta
Deal found 4/7$389
This Delta deal was found by Cheapflights users on 4/6. 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 4/216:00 am
DAY
-
ONT
1 stop8h 36m
Delta
Wed 4/2912:49 pm
ONT
-
DAY
1 stop8h 28m
Delta
Deal found 4/6$394
This Delta deal was found by Cheapflights users on 4/6. 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 5/203:17 pm
DAY
-
ONT
2 stops11h 17m
Delta
Wed 5/276:00 am
ONT
-
DAY
2 stops9h 00m
Delta
Deal found 4/6$399
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:49 pm
DAY
-
ONT
1 stop9h 11m
Delta
Fri 5/810:00 pm
ONT
-
DAY
1 stop9h 30m
Delta
Deal found 4/8$414
This Delta deal was found by Cheapflights users on 4/6. 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 4/216:00 am
DAY
-
ONT
1 stop8h 36m
Delta
Sat 4/2512:49 pm
ONT
-
DAY
1 stop6h 58m
Delta
Deal found 4/6$419
This Delta deal was found by Cheapflights users on 4/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/42:49 pm
DAY
-
ONT
1 stop9h 11m
Delta
Mon 5/1110:00 pm
ONT
-
DAY
1 stop9h 30m
Delta
Deal found 4/4$424
This American Airlines deal was found by Cheapflights users on 4/6. 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 5/207:03 am
DAY
-
ONT
2 stops12h 19m
American Airlines
Wed 5/272:18 pm
ONT
-
DAY
1 stop6h 39m
American Airlines
Deal found 4/6$428
This United Airlines deal was found by Cheapflights users on 4/6. 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 5/206:03 pm
DAY
-
ONT
1 stop7h 32m
United Airlines
Tue 5/266:30 am
ONT
-
DAY
1 stop9h 34m
United Airlines
Deal found 4/6$429

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 April 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$369
(Delta)

One-way from

$229
(Delta)

Popular in

February

Cheapest in

April

Average price

$328
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. 27% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 9, 2026.
Use the filters below to find and compare flights from Dayton to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 9/17

11:05 am-6:01 pm

1 stop9h 56m

Ontario

Tue 9/22

10:59 pm-10:26 am

1 stop8h 27m

$369

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 4/30

6:00 am-11:36 am

1 stop8h 36m

Ontario

Mon 5/4

10:15 pm-10:43 am

1 stop9h 28m

$389

DaytonOntario

DAY - ONT

DAYONT

Dayton

Tue 5/5

6:03 pm-10:35 pm

1 stop7h 32m

Ontario

Sat 5/9

1:40 pm-10:57 pm

1 stop6h 17m

$469

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 9/17

9:00 am-12:38 pm

1 stop6h 38m

Ontario

Tue 9/22

8:00 am-11:44 pm

2 stops12h 44m

$474

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 5/2

11:35 am-8:36 pm

2 stops12h 01m

Ontario

Tue 5/5

7:00 am-5:08 pm

1 stop7h 08m

$494
Quickest round-trip

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 4/25

9:10 am-12:38 pm

1 stop6h 28m

Ontario

Wed 5/6

1:40 pm-10:57 pm

1 stop6h 17m

$494

DaytonOntario

DAY - ONT

DAYONT

Dayton

Mon 5/4

2:49 pm-11:44 pm

2 stops11h 55m

Ontario

Sun 5/10

4:57 pm-10:30 am

2 stops14h 33m

$504

DaytonOntario

DAY - ONT

DAYONT

Dayton

Fri 4/24

4:11 pm-11:59 pm

2 stops10h 48m

Ontario

Tue 4/28

6:00 am-10:17 pm

2 stops13h 17m

$519

DaytonOntario

DAY - ONT

DAYONT

Dayton

Fri 4/24

2:05 pm-10:45 pm

2 stops11h 40m

Ontario

Tue 4/28

1:34 pm-10:25 pm

1 stop5h 51m

$519
Cheapest one-way

DaytonOntario

DAY - ONT

DAYONT

Dayton

Tue 5/12

3:17 pm-9:48 pm

1 stop9h 31m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

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

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 April.
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 Dayton-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dayton-Ontario flight deals on Cheapflights vs. FlightHub >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 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 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 $109). Flying from Dayton to Ontario in March is currently the most expensive (average of $226). 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 Dayton to Ontario?

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 April 9, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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
8,392 reviews

Entertainment

7.8

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.2

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
8,392 reviews
Delta
7.9
Good
8,392 reviews

Entertainment

7.8

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.2

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
9,554 reviews
Delta
7.9
Good
8,392 reviews

Entertainment

7.8

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.2

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
7.1
Good
11,560 reviews
Delta
7.9
Good
8,392 reviews

Entertainment

7.8

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.2

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 and United Airlines can get you from Dayton to Ontario in just under 7h 32m. Your travel time can differ by up to 2h 24m. 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 American Airlines is currently your cheapest option to Ontario, with prices starting at $288. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $288 and $288, respectively. American Airlines is priced at 39% 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 $109). Flying from Dayton to Ontario in March is currently the most expensive (average of $226). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dayton to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to Las Vegas flights
Cleveland to Las Vegas flights
Cincinnati to Las Vegas flights
Detroit to Los Angeles flights
Columbus to Las Vegas flights
Detroit to San Francisco flights
Pittsburgh to Las Vegas flights
Cleveland to Los Angeles flights
Columbus to Los Angeles flights
Detroit to San Diego flights
Pittsburgh to Los Angeles flights
Cincinnati to Los Angeles flights
Akron to Las Vegas flights
Columbus to San Francisco flights
Cleveland to San Francisco flights
Detroit to Ontario flights
Detroit to Santa Ana flights
Pittsburgh to San Francisco flights
Cincinnati to San Francisco flights
Detroit to Burbank flights
Cleveland to San Diego flights
Cincinnati to Ontario flights
Cleveland to Ontario flights
Dayton to Las Vegas flights
Cincinnati to San Diego flights
Columbus to Ontario flights
Columbus to San Diego flights
Detroit to San Jose flights
Detroit to Reno flights
Cleveland to Reno flights
Detroit to Sacramento flights
Pittsburgh to Ontario flights
Detroit to Palm Springs flights
Pittsburgh to San Diego flights
Cincinnati to Santa Ana flights
Columbus to San Jose flights
Columbus to Reno flights
Cincinnati to San Jose flights
Pittsburgh to Santa Ana flights
Cleveland to Santa Ana flights
Columbus to Sacramento flights
Columbus to Burbank flights
Detroit to Oakland flights
Cincinnati to Burbank flights
Columbus to Santa Ana flights
Cleveland to Sacramento flights
Cincinnati to Reno flights
Cleveland to Palm Springs flights

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 April 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$453FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$363FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.