ONT - DAY

$209 Find Cheap Flights from Ontario to Dayton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Dayton departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Dayton

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Dayton, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Dayton, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$309
Overall average: $288
United Airlines
Wed 4/8Sat 4/11
ONT - DAY • 1 stop
Cheapest one-way
$209
Delta
Tue 3/17
ONT - DAY • 1 stop
Top airlines
United Airlines
Cheapest • from $309 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 34% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dayton!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Dayton (ONT-DAY)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Dayton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Dayton

Wed, Apr 8 - Sat, Apr 11
United Airlines Logo
1:34 pm - 10:25 pm
ONT
-
DAY
5h 51m
1 stop
United Airlines Logo
5:55 pm - 10:26 pm
DAY
-
ONT
7h 31m
1 stop
$309United Airlines
Wed, Apr 8 - Sat, Apr 11
United Airlines Logo
1:34 pm - 10:25 pm
ONT
-
DAY
5h 51m
1 stop
United Airlines Logo
10:35 am - 8:36 pm
DAY
-
ONT
13h 01m
2 stops
$314United Airlines
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
6:30 pm - 9:47 am
ONT
-
DAY
12h 17m
2 stops
United Airlines Logo
2:23 pm - 10:34 pm
DAY
-
ONT
11h 11m
2 stops
$319United Airlines
Wed, Feb 25 - Tue, Mar 3
Delta Logo
10:20 pm - 10:55 am
ONT
-
DAY
9h 35m
1 stop
Delta Logo
6:00 am - 12:02 pm
DAY
-
ONT
9h 02m
1 stop
$359Delta
Wed, Jun 24 - Tue, Jun 30
United Airlines Logo
6:30 pm - 9:47 am
ONT
-
DAY
12h 17m
2 stops
United Airlines Logo
6:05 pm - 10:28 pm
DAY
-
ONT
7h 23m
1 stop
$366United Airlines
Wed, Feb 25 - Wed, Mar 4
Delta Logo
1:15 pm - 10:43 pm
ONT
-
DAY
6h 28m
1 stop
Delta Logo
2:39 pm - 11:49 pm
DAY
-
ONT
12h 10m
2 stops
$393Delta
Wed, Feb 25 - Tue, Mar 3
Delta Logo
1:15 pm - 10:43 pm
ONT
-
DAY
6h 28m
1 stop
Delta Logo
6:00 am - 4:02 pm
DAY
-
ONT
13h 02m
2 stops
$394Delta
Thu, Apr 16 - Tue, Apr 21
United Airlines Logo
7:00 am - 6:12 pm
ONT
-
DAY
8h 12m
1 stop
United Airlines Logo
5:43 pm - 10:26 pm
DAY
-
ONT
7h 43m
1 stop
$399United Airlines
Wed, Jun 3 - Wed, Jun 10
United Airlines Logo
5:55 am - 10:23 pm
ONT
-
DAY
13h 28m
2 stops
United Airlines Logo
6:05 pm - 10:46 pm
DAY
-
ONT
7h 41m
1 stop
$404United Airlines
Fri, May 1 - Mon, May 4
Delta Logo
10:15 pm - 10:43 am
ONT
-
DAY
9h 28m
1 stop
Delta Logo
2:49 pm - 9:00 pm
DAY
-
ONT
9h 11m
1 stop
$418Delta
Booking Insights

KAYAK's insights & trends for Ontario to Dayton flights

Get data-powered insights and trends into flights from Ontario to Dayton to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Dayton?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Dayton, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Dayton is April, where tickets cost $288 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $626 and $575 respectively.

Good to know

Low seasonMay
Cheapest flight$209
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Ontario to Dayton

When to book flights from Ontario to Dayton

Are your dates flexible? Find out the best times to travel from Ontario to Dayton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Dayton

  • What is the cheapest flight from Ontario to Dayton?

    In the last 3 days, the lowest price for a flight from Ontario to Dayton was $209 for a one-way ticket and $309 for a round-trip.

  • Do I need a passport to fly between Ontario and Dayton?

    No

  • Which aircraft models fly most regularly from Ontario to Dayton?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Dayton?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Dayton, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Dayton, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Dayton are Delta and United Airlines. With an average price for the route of $382 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $452 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ontario to Dayton?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Dayton.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Dayton?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dayton from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Dayton?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Dayton with an airline and back to Ontario with another airline. Booking your flights between Ontario and DAY can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Dayton?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dayton from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Ontario to Dayton

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Dayton. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Dayton? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8203 reviews
8.1Boarding
7.9Comfort
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

10.0 ExcellentAlicia, Feb 2026
ATL - CVG
Read more Delta reviews

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

It would be nice to have some low carb options in the snacks.

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

Everything you need to know for your flight from Ontario to Dayton

Information on your arrival and departure airports