HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

$61+ Cheap flights from Atlanta to Ontario (ATL - 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ONT
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Leverage Cheapflights for Your Next Trip

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.

The best prices from Atlanta Hartsfield-Jackson to Ontario are usually found in August or September, booked 34 days in advance, depart on a Sunday or Monday and return on a Wednesday

Cheap flight deals from Atlanta to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) 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 July 25, 2024.

Popular in

March

Cheapest in

August

Round-trip from

$192
(mytrip.com)

One-way from

$61
(Trip.com)
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 34% potential price drop
Search Deals
From Atlanta Hartsfield-Jackson to Ontario
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to Ontario
Search Deals

What is the cheapest day to fly round-trip from Atlanta to Ontario?

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 18% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Atlanta to Ontario?

Users have found that booking a flight from Atlanta to Ontario at least 53 days early can save you up to 64% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from Atlanta to Ontario for as little as $263 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $431 for flights departing within the next 3 days.

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

September is one of the best times of the year to fly to Ontario from Atlanta. Prices for September average $311 per person but you can even find prices for as low as $52. The most expensive prices can be found in the month of June. Opting for a September flight can save you 29% on your journey compared to booking in June

What is the cheapest time of day to fly from ATL to ONT?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 54% on flights from Atlanta to Ontario by exploring options for tickets at noon.

Cheap Atlanta to Ontario flights in July & August 2024

Find cheap flight options from Atlanta to Ontario specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
The lowest fares we've come across on flights traveling from Atlanta to Ontario in July and August 2024. Check back regularly for other flight deals.
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/910:27 pmATL - ONT
1 stop14h 14mFrontier
Mon 8/1212:49 amONT - ATL
1 stop25h 14mFrontier
Deal found 7/24$191
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/910:27 pmATL - ONT
1 stop14h 14mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/25$192
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/73:45 pmATL - ONT
1 stop8h 55mFrontier
Wed 8/146:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/25$193
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Tue 8/136:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/24$194
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/24$195
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/136:30 amATL - ONT
1 stop27h 47mFrontier
Sat 8/1712:59 amONT - ATL
1 stop25h 04mFrontier
Deal found 7/25$198
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/510:28 pmATL - ONT
1 stop28h 31mFrontier
Mon 8/127:42 pmONT - ATL
1 stop6h 21mFrontier
Deal found 7/24$199
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Fri 8/166:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/24$200
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/810:11 pmATL - ONT
1 stop25h 50mFrontier
Tue 8/1312:59 amONT - ATL
1 stop25h 04mFrontier
Deal found 7/24$204

Atlanta to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Atlanta and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
The lowest fares we've come across on flights traveling from Atlanta to Ontario in July and August 2024. Check back regularly for other flight deals.
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/910:27 pmATL - ONT
1 stop14h 14mFrontier
Mon 8/1212:49 amONT - ATL
1 stop25h 14mFrontier
Deal found 7/24$191
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/910:27 pmATL - ONT
1 stop14h 14mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/25$192
This mytrip.com deal was found by Cheapflights users on 7/25. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/73:45 pmATL - ONT
1 stop8h 55mFrontier
Wed 8/146:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/25$193
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Thu 8/156:37 pmONT - ATL
1 stop7h 26mFrontier
Deal found 7/24$194
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/24$195
This Booking.com deal was found by Cheapflights users on 7/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/308:18 amATL - ONT
1 stop8h 04mFrontier
Sun 11/312:49 amONT - ATL
1 stop8h 02mFrontier
Deal found 7/24$196
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/238:18 amATL - ONT
1 stop8h 04mFrontier
Sat 10/2612:49 amONT - ATL
1 stop8h 02mFrontier
Deal found 7/24$197
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/136:30 amATL - ONT
1 stop27h 47mFrontier
Sun 8/186:37 pmONT - ATL
1 stop7h 26mFrontier
Deal found 7/25$198
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/510:28 pmATL - ONT
1 stop28h 31mFrontier
Mon 8/127:42 pmONT - ATL
1 stop6h 21mFrontier
Deal found 7/24$199

Atlanta to Ontario flights leaving soon

Find last-minute flight options from Atlanta to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Have a look at some of the last-minute flights available departing from Atlanta to Ontario. Tip: verify your flight details before completing your reservation.
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/24$193
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Tue 8/136:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/24$194
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/24$195
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Fri 8/166:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/24$200
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Sun 8/1110:29 pmONT - ATL
1 stop12h 37mFrontier
Deal found 7/24$214
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/110:11 pmATL - ONT
1 stop11h 08mFrontier
Sat 8/107:59 pmONT - ATL
1 stop10h 04mFrontier
Deal found 7/25$226
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3112:47 pmATL - ONT
1 stop13h 52mFrontier
Tue 8/136:31 pmONT - ATL
1 stop7h 32mFrontier
Deal found 7/24$227
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Wed 8/146:00 amONT - ATL
1 stop11h 54mFrontier
Deal found 7/25$228
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/33:57 pmATL - ONT
1 stop9h 15mFrontier
Sun 8/46:05 amONT - ATL
1 stop21h 01mFrontier
Deal found 7/23$230

One-way flights to Ontario from Atlanta

Search for one-way flight options from Atlanta to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Take a look at some of the one-way flights we've detected from Atlanta to Ontario. Those needing a return flight from Atlanta to Ontario can use the search form above.
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/286:19 amATL - ONT
1 stop20h 40mFrontier
Deal found 7/25$61
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/246:58 pmATL - ONT
1 stop7h 51mFrontier
Deal found 7/25$62
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/176:58 pmATL - ONT
1 stop7h 51mFrontier
Deal found 7/25$63
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2312:56 pmATL - ONT
1 stop9h 41mFrontier
Deal found 7/25$67
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/203:00 pmATL - ONT
1 stop11h 29mMultiple Airlines
Deal found 7/24$74
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/269:15 pmATL - ONT
1 stop13h 02mFrontier
Deal found 7/24$75
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/138:30 amATL - ONT
1 stop17h 59mFrontier
Deal found 7/25$78
This FlightNetwork deal was found by Cheapflights users on 7/24. 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 FlightNetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/156:30 amATL - ONT
1 stop27h 47mFrontier
Deal found 7/24$81
This mytrip.com deal was found by Cheapflights users on 7/24. 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 mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/309:00 amATL - ONT
1 stop8h 46mFrontier
Deal found 7/24$82

Find flights from Atlanta to Ontario within your budget

Customize your flight search to find flights from Atlanta 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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$192 - $368

Route

Depart

Return

Price

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Fri 8/9

1 stop14h 14m

Ontario

Sat 8/10

1 stop10h 04m

$192

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 8/7

1 stop8h 55m

Ontario

Tue 8/13

1 stop7h 32m

$193

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 8/7

1 stop8h 55m

Ontario

Sat 8/10

1 stop10h 04m

$195

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 9/4

1 stop7h 14m

Ontario

Tue 9/10

2 stops10h 17m

$213

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 9/4

2 stops11h 30m

Ontario

Tue 9/10

2 stops10h 17m

$218

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Wed 7/31

1 stop13h 52m

Ontario

Wed 8/7

1 stop10h 26m

$235

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Thu 9/5

Nonstop4h 18m

Ontario

Wed 9/11

Nonstop4h 12m

$239

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Tue 9/24

2 stops24h 48m

Ontario

Thu 9/26

1 stop10h 30m

$355

Atlanta Hartsfield-JacksonOntario

ATL - ONT

ATLONT

Atlanta Hartsfield-Jackson

Thu 8/29

1 stop6h 36m

Ontario

Sun 9/1

1 stop8h 57m

$368

Flights are sorted by cheapest first

Deals found on 7/25

How far ahead should I book a flight from Atlanta to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to Ontario. Price data was last updated on July 25, 2024.
To ensure you get the cheapest price possible for a flight from Atlanta to Ontario, you should look to book at least 34 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from Atlanta to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Ontario. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Atlanta to Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Atlanta to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Atlanta 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.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 July 25, 2024.
Get a feel of what it's like to fly with American Airlines, Frontier and Delta from Atlanta to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.2

Food

7.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Alaska Airlines
8.1
Very good
9,365 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.2

Food

7.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Delta
8.0
Very good
9,630 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.2

Food

7.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.2

Food

7.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

WestJet
7.4
Good
2,761 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.2

Food

7.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.2

Food

7.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Related info for your journey

Find useful and relevant information for your journey from Atlanta to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Atlanta to Ontario?

    To fly from Atlanta to Ontario, you need to book a flight from Hartsfield-Jackson (ATL) to Ontario (ONT). Nonstop flights to Ontario from Atlanta Hartsfield-Jackson take 4h 18m on average. When it comes time to book airfare, you have a few options: there are 5 outbound flights from Hartsfield-Jackson to Ontario offered by 6 different airlines.

  • Can I find flights from Atlanta to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Atlanta to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $192, but on average you can expect to pay $217.

  • Are there nonstop flights from Atlanta to Ontario for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Atlanta to Ontario under $300. A good price for a nonstop flight from Atlanta to Ontario is less than $337.

  • Are there last-minute flights available from Atlanta to Ontario for under $200?

    There are currently 20+ open flights from Atlanta to Ontario within the next 7 days for less than $200.

  • What days are nonstop flights available from Atlanta to Ontario?

    Nonstop flights can be found on the following days: Friday.

  • How popular is this Atlanta to Ontario flight route?

    Flights from Atlanta Hartsfield-Jackson to Ontario have been viewed 2 times in the past calendar month.

  • How many flights depart from Atlanta to Ontario on average per day?

    On average 3 flights depart from Atlanta to Ontario per day.
    Evening (6pm - Midnight) - 100% of flight departures

  • How long is the flight from Atlanta to Ontario?

    There are many flights that can get you from Atlanta to Ontario in 4h 18m. Fly via Frontier, American Airlines, or Delta to get the fastest option. Atlanta and Ontario are separated by a distance of 1906 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Atlanta to Ontario round-trip?

    According to our current data, Frontier ($192), American Airlines ($213), and Delta ($239) offers the cheapest pricing from Atlanta to Ontario. These flights start at 50% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Atlanta to Ontario?

    The top 3 most reliable airlines when flying from Atlanta to Ontario are ITA Airways (100%), WestJet (94%) and Virgin Atlantic (89%).

  • What are the cheapest flights from Atlanta to Ontario?

    Looking at all options, your cheapest flight can be booked for $239. While the most popular route (Atlanta Hartsfield-Jackson - Ontario) can be booked for $161 on average our data indicates $519 when flying from Atlanta to Ontario.

  • What does ATL to ONT mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Atlanta Hartsfield-Jackson Airport to Ontario Airport flight would often be abbreviated as a ATL to ONT flight.

  • Can I find deals for flights from Atlanta to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Atlanta to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Atlanta to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Atlanta to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Atlanta to Ontario that include hotel bookings?

    Yes. In addition to deals on Atlanta to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Atlanta to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Ontario.

  • Can I find deals for business class flights from Atlanta to Ontario?

    Yes. Cheapflights offers flight deals from Atlanta 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.

  • Can I find deals for flights from Atlanta to Ontario that allow pets onboard?

    Many airlines flying from Atlanta to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Atlanta to Ontario?

    Yes, you can often find last-minute deals on Atlanta to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Atlanta to Ontario flight deals updated?

    The Atlanta to Ontario flight deals you see on this page were last updated on 7/25.

  • What are the most popular airlines that fly from Atlanta to Ontario?

    The most popular airlines flying from Atlanta to Ontario are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

  • What is the cheapest month to book a flight from Atlanta to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Atlanta to Ontario (average of $237). Flying from Atlanta to Ontario in July is currently the most expensive (average of $293). 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 Atlanta to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

Atlanta to Las Vegas flights
Atlanta to Los Angeles flights
Atlanta to San Francisco flights
Atlanta to Burbank flights
Atlanta to Santa Ana flights
Atlanta to San Diego flights
Atlanta to Oakland flights
Atlanta to San Jose flights
Jacksonville to Las Vegas flights
Savannah to Las Vegas flights
Atlanta to Sacramento flights
Atlanta to Reno flights
Jacksonville to Los Angeles flights
Atlanta to Palm Springs flights
Asheville to Las Vegas flights
Asheville to Los Angeles flights
Jacksonville to San Francisco flights
Chattanooga to Las Vegas flights
Asheville to San Francisco flights
Tallahassee to Las Vegas flights
Jacksonville to Santa Ana flights
Jacksonville to Ontario flights
Savannah to Los Angeles flights
Augusta to Las Vegas flights
Atlanta to Santa Barbara flights
Jacksonville to San Diego flights
Savannah to Reno flights
Atlanta to Fresno flights
Chattanooga to Los Angeles flights
Asheville to Reno flights
Augusta to San Francisco flights
Jacksonville to Reno flights
Asheville to San Diego flights
Atlanta to San Luis Obispo flights
Savannah to San Francisco flights
Atlanta to Long Beach flights
Jacksonville to San Jose flights
Jacksonville to Monterey flights
Tallahassee to Los Angeles flights
Savannah to Ontario flights
Chattanooga to Sacramento flights
Jacksonville to Sacramento flights
Asheville to Ontario flights
Augusta to San Diego flights
Chattanooga to San Francisco flights
Asheville to Santa Ana flights
Jacksonville to Burbank flights
Valdosta to Los Angeles flights
Augusta to San Jose flights

Top 6 airlines flying from Atlanta to Ontario

Discover the top 6 airlines that operate flights from Atlanta 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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$106Average$191FlexibilityNo cancel feeOn-time65%
FrontierCheapest$138Average$204FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$176Average$508FlexibilityNo cancel feeOn-time69%
DeltaCheapest$244Average$498FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$441FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$328Average$655FlexibilityNo cancel feeOn-time75%
Philadelphia to Los Angeles flights
Boston to Atlanta flights
Tampa to Atlanta flights
Chicago to Kansas City flights
New York to Moscow flights
Los Angeles to Manila flights
New York to Europe flights
USA to Israel flights
Cleveland to Chicago flights
USA to Singapore flights
Boston to Los Angeles flights
Atlanta to Coolangatta flights

Search flights from Atlanta to Ontario by cabin class

Find flights from Atlanta to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Atlanta to Ontario

Find hourly flight availability from Atlanta 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 July 25, 2024.
0%of flight departuresEarly morningMidnight to 6 am
14%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
86%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Atlanta to Ontario

Explore weekly flight availability from Atlanta to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 25, 2024.
Sunday7daily flights
Monday7daily flights
Tuesday5daily flights
Wednesday3daily flights
Thursday8daily flights
Friday6daily flights
Saturday4daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Abha
Flights to Komatsu
Flights to Skardu
Flights to Laayoune Hassan I
Flights to Aqaba King Hussein Intl
Flights to Nampula
Flights to Bourgas
Flights to Riverton
Flights to Alpena Phelps/Collins
Flights to Palmas
Flights to Newport State
Flights to Antofagasta Cerro Moreno
Flights to Nuku‘alofa Fua'Amotu Intl
Flights to Ndola
Flights to Fort Dodge
Flights to Miri
Flights to Rhinelander Oneida County
Flights to Seattle Lake Union Spb
Flights to Portsmouth Pease Intl
Flights to Tumbes
Flights to Jigiga
Flights to Diyarbakir
Flights to Akureyri
Flights to Brainerd Crow Wing County
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.
View all available airlines