ATL - ONT

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ATL — ONT
Dec 2 — Dec 91
Round-trip
1 adult
Economy
0 bags
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Fri 12/2
Fri 12/9

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Good to know

Low season

January

High season

July

Cheapest flight

$65

Average price round-trip

$393

Good deal round-trip

$246

Good deal one-way

$187
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Atlanta Hartsfield-Jackson to Ontario
(avg. price over the last 2 weeks)
or less
or less

When to book flights from Atlanta to Ontario

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight from ATL to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $187 or less one-way and $246 or less round-trip.
  • The cheapest flight from Atlanta to Ontario was found 81 days before departure, on average.
  • Book at least 4 weeks before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is January.
  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking flights from Atlanta to Ontario

Top airlines flying Atlanta Hartsfield-Jackson to Ontario

Scores according to KAYAK customer reviews
8.1
JetBlueOverall score based on 20588 reviews
8.2Boarding
8.2Comfort
8.5Crew
7.9Entertainment
7.7Food
Airline reviews
Cons: "Boarding members kept me for no reason to my Cary on bag"
Read more about JetBlue
Cons: "Boarding members kept me for no reason to my Cary on bag"
Pros: "Very easy and great reminder app"
Cons: "No"
Pros: "Great crew. Quick service."
Cons: "Plane is a bit older with tiny tv screens."
Cons: "The flight was an hour delayed due to technical / gas issues"
Pros: "Nothing really. It was as expected, but not more."
Cons: "Seats were cramped for all the talk of legroom"
Pros: "The general experience was mostly the same as usual except for the extremely long delay caused by weather (out of the airline's control)."
Cons: "JetBlue staff at ATL never once updated passengers on the delay. The overhead space filled up too quickly during boarding and I was forced to check carry-on without time to secure or gather my effects. JetBlue baggage claim staff at JFK were then purposefully misleading and evasive."
Cons: "The seats were very hard and uncomfortable for a 5 1/2 hr flight"
Pros: "I slept throughout the flight."
Cons: "I did not experience any disturbance."
Pros: "All my needs were met, but at times I did feel like staff were perhaps “inconvenienced/annoyed” by my frequent requests for water. I drank alcohol and thus wanted to stay as hydrated as possible. Also, the seat belt thing/issue. FAA or someone needs to review and update the bathroom policy. Consuming water is vital for our bodies and we need to be in situations that allow us to do so and also allow us easy access to flush out our toxins/liquids."
Cons: "No room in seat where this is suppose to be room. Arm chair tray tables??? Come on now... its 2019. TV was to small and poor TV quality."
Cons: "Nobody speaks english. Announcement also in Portuguese. Very difficult for foreigners. Gate people are awful."
Cons: "Our flight out of Atlanta was delayed twice, and eventually cancelled due to mechanical problems - this caused us to miss our connecting flight from JFK to TLV. We had to rescheduled our flights (slow and convoluted route): Atlanta, Boston, Newark, Tel Aviv. We are presently in Boston."
Pros: "Crew was friendly and helpful. Efficient in boarding and disembarking. On time and reliable gate assignments. Comfortable seats with ample leg room. Option to check bag at the gate made for more room for overhead items. Desirable options for snacks and drinks. Complementary TV/ WiFi."
Cons: "Quality of TV/WiFi could be of higher quality. Can’t think of anything else."
Pros: "Comfort in seats and friendly service"
Cons: "TV movie music"
Pros: "The crew was great"
Cons: "There was no one sitting on the chairs behind us. We asked the attendant if we could sit since our sits were full. Anyways hope next time if the door is closed and passengers are tight they could sit on empty sits ."
Cons: "The door wouldn’t open once we arrived in Detroit"
Pros: "Nice plane, amenities"
Cons: "Better information about perpetual delays - honesty about delay. Information to respond appropriately."
Pros: "The landing was excellent. The crew just okay , not warm or serving well."
Cons: "The movie too old movie and the device hard to use e.g. change the movie from channel 1 from first movie to the second movie. The attendant not give my request (water) until I need to walk myself to the back."
Pros: "Flight was comfortable and entertainment was appreciated"
Cons: "Flight attendants weren’t all there... somewhat rude. Flight attendant gave the wrong local time (you even heard her count through the speaker). Same flight attendant abruptly woke up passengers bye saying “Wakey, Wakey” in the early hours of the morning (we were traveling from NY)"
Pros: "I really like that the pilot came out and entrpduced him self. Early do pilots ever do that . he seemed to really enjoy his job and was very appreciative of his flight attendants. The flight was extremely smooth!!! I couldn’t be happier"
Cons: "Had no problems"
Pros: "Everything is good"
Pros: "Leg room was amazing! Polite crew. Clean plane."
Pros: "Ease of boarding, extra room and knowledgeable staff."
Cons: "That I had to pay for earbuds or blanket."
Pros: "Amazing flight attendants"
Pros: "Ma little bit"
Cons: "Delay"
Pros: "The staff was very nice."
Cons: "We wasnt told how to use the tvs and where to put earbuds."
Pros: "i loved that they had television, free wifi, snacks and drinks. there was also a lot of leg room."
Pros: "I really enjoyed my flight. I generally fly Delta but I was really impressed with so many features this flight had to offer. Free television with movies and free WiFi. The staff was very friendly and the snacks actually were some of the things I get at home. I will fly jet blue in the future!"
Pros: "We upgraded to the “extra legroom” seats and they were so comfortable. The free entertainment was very nice and made the flight time pass quickly. The crew was friendly, attentive, and kind. We are looking forward to flying with them again."
Pros: "Boarding went well"
Cons: "I asked 4 times to 3 different attendants to please reset the TVs so that the rite could be fixed. I was not the only passenger in the row and we both were going to enjoy the entertainment that we purchased with our flight tickets. Not only that, but tHe flight attendant knowingly allowed someone to try and enter the bathroom right after watching me go in to use it. I was completely shocked that they were so caught up in their personal conversation and could not bother to warn the person that i was using the bathroom"
Pros: "The flight crew was very attentive and friendly."
Cons: "Plane needed to be cleaned."
Pros: "Great crew."
Cons: "The usual negatives with discount airlines- pay for seats, food, ear buds etc. free snacks available and excellent."
Pros: "JetBlue has always been decent. I like that this trip the flight was an easy board on and off."
Cons: "With all Planes now it seems the seats are for quantity and less quality. So it's fairly uncomfortable to sit in them. Plus when you have back problems that doesn't help. Cheap ticket will equal a cheap seat."
Cons: "Flight was 45 min late inbound to ATL"
Pros: "Absolutely great leg room."
Cons: "n/a"
Pros: "Well organized"
Cons: "There wasn’t a thing that needed to be fixed. Future airlines."
Pros: "Loved the size and comfort of the seats especially the legroom! Enjoyed being able to have more than one snack and friendly crew."
Cons: "Nothing comes to mind"
Pros: "Legroom, free movies, and the crew members were courteous, and professional."
Cons: "They only offered chips as snacks; I wish there were really foods I could order."
Cons: "delayed"
Pros: "Timely and pleasant experience. My extra space seat assignment was grea."
Cons: "No particulars"
Pros: "The entire experience"
Cons: "Couldn't find any thing to grouch about"
Pros: "I liked the customer service and they actually served snacks. Flight was smoothe"
Pros: "My partner and I bought extra legroom seats we could sit together. They were expensive but nice. The crew was very friendly and tried to help with my broken screen/entertainment system. When the attendant couldn't fix it, she said she could offer me a cocktail but since it was 10:30 am, it was kind of hard to justify."
Cons: "It's a first world problem to have a broken personal entertainment system at your jet seat so, of course, one keeps these things in perspective. I mention it only because this flight was relatively expensive ... and I was really looking forward to watching The Greatest Showman. :-)"
Cons: "Flight was delayed"
Pros: "The crew was nice and polite."
Cons: "JetBlue flight was delay us for 3 hours without any explanation. Made us feel unappreciated as customers."
Pros: "Easy onboarding process. Great leg room in economy. Short flight but got coffee and cookies"
Pros: "lots of legroom!"
Pros: "Plenty of Leg room and overhead compartments"
Pros: "It's a budget carrier - I don't expect great food and brand new upholstery. I expect safe, on-time travel, and JetBlue meets and exceeds my expectations every time. Very happy. A great, community-involved company too."
Cons: "Free Wi-Fi, but it seems you have to sign up for an account or/and do something with Amazon. Needlessly complicated. If the Wi-Fi is free, just let passengers join."
Pros: "The Crew"
Cons: "It was a passenger on the plane acting real suspicious. I didn’t like that. Also the seats was uncomfortable."
Pros: "On time"
Cons: "Extremely high charge for carry-on baggage, extremely high charge for changing flight times, no beverage service, seats are very small with no iPhone charger available."
Pros: "Price on the flight to ket"
Cons: "Sits are really uncomfortable, staff wasn't courteous and boarding process was a mess"
Pros: "Nothing very disappointed with Frontiers service"
Cons: "From Ontario to Austin we were charge $50 for each carry on luggage we 1 for me 1 for my husband total $100 charge From Austin to Ontario carry on luggage was free why?Im filling complained about the airline"
Cons: "We arrived very late due to the airline being run so poorly. Something about paperwork according to the pilot. Now the rental car company is closed so I have to sleep at the airport and wait till the budget opens again in the morning. Frontier should put me up in a hotel as their mismanagement caused the delay not the weather. But they just said too bad because the flight was less than 4hours late. Frontier - never again!!!- plus the seats are painful"
Pros: "Flight to attendants were very good."
Cons: "By the time I had added my bags, selected my seats I may as well have gone on another airline that didn’t nickel and dime you go food and drink. Will not do it again or my wife, advertise as a low cost airline but it most certainly is not."
Pros: "The crew is really nice, attentive, and it's not hard to get their attention. They also don't bother you when you sleep and are overall quiet and courteous."
Cons: "Not knowing how long until we land. A quick "1 hour till arrival . . . 30min..." would have been appreciated."
Pros: "Price was affordable."
Cons: "Had to pay for a carry on bag :("
Pros: "Fast boarding"
Cons: "Pilot didn't show and he airline gave poor reasons why."
Cons: "There were no snacks, not one drink was free, and the seats did not even recline. I will not be purchasing any further trips with Frontier no matter the price."
Pros: "Price of flight"
Cons: "Freezing cold, food selections, price of food for quantity you get, no blankets, leg space horrible, charging for upgraded leg room seats when seats were open, only giving ppl 30 seconds to move to a an empty free seat at no chrg, plane was not clean at all in bathrooms-disgusting: walls filthy, counters dirty and grimy, door & floors filthy, soap dispenser unsanitary, crew comments|conversations about travelers, should start boarding from the bk of the plane forward"
Pros: "Good flight crew, courteous. You don't pay for what you don't need."
Cons: "The cost to check baggage, why not have 1 free bag, either checked or carryon. Not even peanuts to snack on unless you pay an absorbent price."
Cons: "EVERYTHING is an add on!!! Ticket price might be cheaper when you price check ....but by time you add on all the add ons your ticket price is NOT the best price. Won't fly Frontier again."
Pros: "Not much"
Cons: "Plane was delayed two hours, then we sat on the plane for another hour all for a one hour flight. There were maintenance issues and things done wrong on the plane. There was no incentive or even snack to help the customers get through the three hours."
Pros: "I'm disabled an unlike my family and friends, the Frontier staff not only sppotted my handicap. They responded by wheeling me throughout the airportmmp"
Cons: "Hartsfield zairport is s dump !"
Pros: "Price was good, flight crew were very friendly and professional"
Cons: "Seats didn't recline."
Pros: "Friendly and efficient staff, perfect landing!"
Cons: "There was no in flight entertainment."
Cons: "I don't like how you have to pay for Your first checked bag"
Pros: "Cheap flight!"
Cons: "Maintenance issues on the ground, so didn't leave the airport for an hour and a half. Then due to wind conditions, stranded in the air for another hour. Missed a meeting I was supposed to be at. UGH all around"
Cons: "The phone service said the flight was in time as scheduled, the app said it was cancelled...Worst service ever."
Cons: "The flight was first cancelled, then I had to wait two days for the next available flight out. Also was charged for my carry on bag. This airline does not offer any complimentary drinks. I will not book this company again, you think your saving a little and end up spending More at the end."
Pros: "Nice crew. Plane clean."
Cons: "On this long flight from Atlanta to San Francisco, a reclining seat would have been nice."
Cons: "There was an accident that prevented me from arriving at the airport the recommended 2 hours prior to boarding. Anyway I managed to get there a whole 30 minutes in advance but the people didn't even try to let me get through ..they just said No and that was that."
Pros: "You've got to be kidding me......"
Cons: "-a simple bag drop off was over an hour. It cost us only $30 for that. -no customer service to address the long wait times. No corporate emails or phone contacts. This means that they don't want to take complaints. Ps- there were 250 people in line...I counted 9 people calling customer service. I don't think any of them were success. -none of the kiosks were working at phx. I thought we were in the 21st century. -seats do not recline. Seats are uncomfortable. Food tray is tiny. And I do mean tiny. No water or soda or anything without paying for it. That's a bit unrealistic for a cross country flight. -Fees! For food, drinks, stowed baggage, carry-on baggage (what?), choosing a seat assignment (and I do mean any seat assignment ) -Frontier will never see this because they do not deal with complaints. Ps-I wasn't able to respond via Twitter. I didn't know if my cell phone was an issue or if Frontier blocked twitter feedback."
Cons: "There were extra charges for the seat and my carry on. I will never fly Frontier again. No one likes hidden fees. What good is paying for a ticket if it doesn't even include the cost of a seat?"
Pros: "Everyone was nice and polite from Frontier."
Cons: "A lot of turbulence on both flights when landing. Small plane problems?"
Pros: "At least the flight didn't cancel"
Cons: "Massive delay"
Pros: "I had neve flown Frontier before. The boarding experience was orderly, fast & efficient."
Cons: "There was no free wifi"
Pros: "The cheap flight. Smiley crew"
Cons: "The extra cost for seats and the overall situation about this airline no recline seat? Oh well."
Cons: "It's frontier - you fly it because it's cheap, but service/flight quality sucks"
Pros: "The flight was nice and I left and arrived on time."
Cons: "Something that I didn't like was, the fact that when I left Phoenix on frontier I didn't know that I had to pay $60. for a carry on that fit in the over head compartment until I was about to board the plane. That's when they announced it and there were a lot of surprised passengers."
Cons: "The flight was delayed by an hour but there was no announcement made"
Pros: "Boarding was organized and the flight was on time for boarding, takeoff and arrival at the destination gate."
Cons: "The seats are well-shiort of luxurious, and there is no beverage service or entertainment. Also, you have to pay for both carry-on and checked luggage. I guess these are all things you should expect from a discount airline."
Pros: "The rate of the flight. It's a little bit cheaper than Delta and American flights."
Cons: "No entertainment on the flight. It cost extra to change seats. All the snacks cost money. And the bag fee is 40$"
Cons: "We were stuck on the runway for over an hour after we landed and getting our luggage was a DISASTER. They changed the location of our baggage claim carousel with minimal notice, only to change it back to the original carousel with NO NOTICE. It took over an hour again for our luggage to come out and it trickled in so slowly, that I ended up getting my bag a full two and a half hours after we landed. Awful experience."
Pros: "The flight attendants were very nice."
Cons: "I have nothing bad to say."
Pros: "Nothing"
Cons: "Seats hard plastic and inhumanly closed together. Tray tables smaller than a car's sunvisor. I think Frontier should be called the Middle Passage airlines for how they pack us in. They make you pay for luggage, improved seat size, location, food and then ask you to tip your cranky flight attendant whom they seem to screen and select the most misanthropic applicants they can find. And then they try to sell you their credit card with a $69 annual fee. I watched and there where no takers."
Pros: "The flight itself was rather cheap. You're not going to beat $40 buck."
Cons: "I didn't like, however, that they never mention that any additional bag is another $45 dollars. I ended up spending around $120 dollars."
Pros: "Flight attendant Mary did her best to make up for the flights short comings. She was pleasant, cheerful and understood she didn't have much to work with."
Cons: "The agents at the ticket counter as well as those boarding the flight wee very unprofessional. They should be working cleaning bathrooms instead of interacting with the public. There was a manager present who acted more like a monitor than a manager. eventhough I have a return ticket, I will not use it and prefer to purchase a ticket on another airline. You can keep the money. I wouldn't subject a mango dog to your airline and service."
Pros: "Price was good"
Cons: "Nothing"
Pros: "The price was unbeatable, as I was only doing a day trip over a short distance."
Cons: "I'm glad that it was a short distance, after I got on the plan and saw what must be some of the thinnest seats in the industry, which I have not scientifically evaluated, but, I do feel free to express my opinion. I would not have liked sitting in this seat for a longer flight. Also, the smallest tabletop I've ever seen would not have been suitable if I had decided to open up my full-size laptop for use."
Pros: "Nothing"
Cons: "Flight cancelled 10 minutes before boarding on last flight of the day. Next available flight was four days later! I had to take a refund and buy a ticket for the next day on another airline. From now on I'll just buy my ticket on another airline to start with and save the trouble or wasting my time with this airline."
Pros: "The flight arrived earlier then scheduled."
Cons: "The baggage fees on this flight was more then the actual flight ticket."
Pros: "The crew was nice."
Cons: "It was rather like a city bus-- no amenities, nothing I would feed a wild raccoon, cramped, tight and generally unpleasant.A charge for a carry on?!? Really?"
Pros: "I loved the gate agent. She gave me a row of seats to myself. I also loved the flight attendants. They were very courteous, friendly and professional. The pitch between the seats were decent. They definitely respect the passenger and provide excellent pricing. I traveled without bags or personal item. I understood exactly what I was doing. Going to Vegas for 24 hours for next to nothing."
Cons: "I felt the snacks were overpriced. It was kind of funny seeing the flight attendants use debit or credit cards for each item on their cart."
Cons: "Actually the tickets were cancelled due to my wife"s (KARAMJIT K UBEROI ) sudden sickness and in spite of promise by your customer service to re credit to my Credit Card, later on denied the same .However a flight credit for the amount was provided to use within three months .We were harassed by making repeated faxes and make calls nearly dozen times."
Pros: "The flight was fast and straight forward."
Pros: "For the money i spent to fly the only thing i had free was water. Wasn't used to flying with no complimentary snacks and to purchase items were a bit expensive. Baggage took too long 30 minutes. Wasnt accustom to waiting for my luggage at the baggage claim. Other than that the flight was good. Thanks for your service, but i will try not to use Frontier airline's"
Pros: "The plane seem fairly new and the boarding was fairly smooth. The crew was calm and even patient from my perspective, considering they were handling mad costumers after a 3&1/2 hour delay on christmast day. I saw good will on this flight from the crew. Remember when the pilots use to show you the cockpit? Well this pilot did to a kid as he entered the plane. The kid and his father were very happy, expeessing how cool is was as they continue to board. That, was a nice gesture and resulted in relaxing some people! The flight was fairly quick once we were in the air. Tha been said. This flight did t allow for me to rate entertaiment and food since it was too short for the crew to set that up."
Cons: "Well obviously the massive delayed! I, like many arrived at the airport with enough hours ahead to take this flight so say 6-7am only to sit around until 12:00pm in order to depart. That alone is a fairly black mark. In addition, the gate kept been moving around. Of course there are other planes to arrive and that needs to be understood but the constant changing and moving to distant gates was a bit tough on some of us."
Cons: "They didn't have paperwork done and we were sitting on the runway for over an hour waiting."

Book cheap flights from Atlanta to Ontario

Recent round-trip flight deals

1/19Thu
1 stopFrontier
15h 59mATL-ONT
1/23Mon
1 stopFrontier
18h 32mONT-ATL
$132
2/14Tue
1 stopFrontier
15h 59mATL-ONT
2/28Tue
1 stopFrontier
6h 29mONT-ATL
$134
2/15Wed
1 stopMultiple Airlines
8h 31mATL-ONT
3/1Wed
1 stopMultiple Airlines
11h 32mONT-ATL
$136
1/21Sat
1 stopFrontier
9h 04mATL-ONT
1/24Tue
1 stopFrontier
11h 20mONT-ATL
$142
1/17Tue
1 stopFrontier
15h 59mATL-ONT
1/27Fri
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14h 33mONT-ATL
$143
1/23Mon
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10h 09mATL-ONT
1/31Tue
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$145
1/25Wed
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1/26Thu
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$146
1/30Mon
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$158
1/20Fri
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10h 09mATL-ONT
1/23Mon
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18h 32mONT-ATL
$160
1/23Mon
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1/30Mon
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1/23Mon
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1/23Mon
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1/29Sun
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1/23Mon
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1/31Tue
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$189
1/13Fri
2 stopsMultiple Airlines
21h 32mATL-ONT
1/19Thu
1 stopMultiple Airlines
11h 20mONT-ATL
$190

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1 stopFrontier
10h 57mATL-ONT
$65
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15h 29mATL-ONT
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12/14Wed
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33h 53mATL-ONT
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12/8Thu
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1/17Tue
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12/6Tue
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12/12Mon
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22h 59mATL-ONT
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1/8Sun
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12/7Wed
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12/19Mon
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12/9Fri
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12/14Wed
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27h 41mATL-ONT
$109
12/14Wed
3 stopsMultiple Airlines
14h 41mATL-ONT
$117
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20h 34mATL-ONT
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Atlanta - Ontario Flights

Departure:

Atlanta (ATL)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Atlanta

Cabin classes:

$1,162
$1,377
$917
$162

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