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$74+ Cheap flights from Charlotte to Ontario (CLT - 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ONT
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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Cheapflights Tip: The best prices from Charlotte Douglas to Ontario are usually found in April or September, booked 55 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Charlotte to Ontario

Cheapest flights from Charlotte to Ontario
Explore the most affordable flight options available from Charlotte to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 10, 2025.

This Frontier deal was found by Cheapflights users on 12/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:39 pmCLT - ONT
1 stop13h 45mFrontier
Mon 1/126:00 amONT - CLT
1 stop8h 55mFrontier
Deal found 12/7$182
This CheapOair deal was found by Cheapflights users on 12/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:39 pmCLT - ONT
1 stop13h 45mFrontier
Wed 12/246:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/8$183
This CheapOair deal was found by Cheapflights users on 12/9. 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.
Mon 12/228:39 pmCLT - ONT
1 stop13h 45mFrontier
Thu 12/256:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/9$229
This Frontier deal was found by Cheapflights users on 12/9. 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.
Wed 12/315:14 pmCLT - ONT
1 stop9h 45mFrontier
Sun 2/110:13 amONT - CLT
1 stop7h 51mFrontier
Deal found 12/9$240
This CheapOair deal was found by Cheapflights users on 12/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:39 pmCLT - ONT
1 stop13h 45mFrontier
Mon 12/296:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/7$254
This Mytrip deal was found by Cheapflights users on 12/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:14 pmCLT - ONT
1 stop9h 45mFrontier
Thu 1/16:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/8$258
This CheapOair deal was found by Cheapflights users on 12/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:44 pmCLT - ONT
1 stop23h 41mFrontier
Sun 12/142:59 pmONT - CLT
1 stop27h 44mFrontier
Deal found 12/7$259
This Gotogate deal was found by Cheapflights users on 12/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:39 pmCLT - ONT
1 stop13h 45mFrontier
Sun 1/46:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/8$268
This Booking.com deal was found by Cheapflights users on 12/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:22 pmCLT - ONT
1 stop12h 02mFrontier
Wed 12/316:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/8$273
This Mytrip deal was found by Cheapflights users on 12/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:22 pmCLT - ONT
1 stop12h 02mFrontier
Thu 12/256:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 12/10$278

Find flight deals from Charlotte to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Charlotte (CLT) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$148
(Frontier)

One-way from

$74
(Frontier)

Popular in

December

Cheapest in

April

Average price

$539

Good round-trip deal

$378 or less
Provider with most accurate pricing for Charlotte Douglas-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charlotte Douglas-Ontario flights.
Search Deals
From Charlotte Douglas to Ontario
Search Deals
One-way flight from Charlotte Douglas to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Charlotte Douglas to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charlotte to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 10, 2025.
Use the filters below to find and compare flights from Charlotte to Ontario that are best for you.

Fly from

Charlotte

Fly to

Ontario

Route

Depart

Return

Price

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 1/8

8:47 am-1:39 pm

1 stop7h 52m

Ontario

Mon 1/12

6:00 am-5:55 pm

1 stop8h 55m

$182

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 2/18

4:25 pm-8:50 pm

1 stop7h 25m

Ontario

Sat 2/28

6:00 am-3:40 pm

1 stop6h 40m

$371

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 2/18

1:35 pm-8:45 pm

2 stops10h 10m

Ontario

Sat 2/28

7:20 am-5:20 pm

1 stop7h 00m

$376

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 1/28

5:25 am-11:31 am

1 stop9h 06m

Ontario

Sat 1/31

10:30 pm-8:40 am

1 stop7h 10m

$383

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 2/28

2:26 pm-9:05 pm

1 stop9h 39m

Ontario

Wed 3/4

10:20 pm-8:40 am

1 stop7h 20m

$383

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 2/14

5:05 pm-9:44 pm

1 stop7h 39m

Ontario

Sat 3/7

10:20 pm-7:40 am

1 stop6h 20m

$383

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 2/14

2:26 pm-9:05 pm

1 stop9h 39m

Ontario

Sat 2/21

10:20 pm-8:40 am

1 stop7h 20m

$383

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 1/1

6:00 am-10:00 am

1 stop7h 00m

Ontario

Sat 1/31

10:30 pm-8:40 am

1 stop7h 10m

$383

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 1/28

11:05 am-4:55 pm

2 stops8h 50m

Ontario

Sat 1/31

5:50 am-7:15 pm

2 stops10h 25m

$393

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 1/29

1:35 pm-8:45 pm

2 stops10h 10m

Ontario

Mon 2/2

5:45 pm-10:20 am

2 stops13h 35m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 22 results
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3

Compare providers for flights from Charlotte 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 Charlotte to Ontario in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Charlotte-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Charlotte-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Charlotte-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Charlotte-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Charlotte-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 Charlotte to Ontario

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

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

Use this chart to determine the optimal time to book a round-trip flight from Charlotte to Ontario. Price data was last updated on December 5, 2025.

The best time to book flights from Charlotte to Ontario is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June is the cheapest month in which you can book a flight from Charlotte to Ontario (average of $105). Flying from Charlotte to Ontario in April is currently the most expensive (average of $199). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Charlotte to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 10, 2025.

It’s optimal to fly from Charlotte to Ontario in the evening. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated December 10, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Charlotte to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,252 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
7.9
Good
4,252 reviews
Southwest
7.9
Good
4,252 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,009 reviews
Southwest
7.9
Good
4,252 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,048 reviews
Southwest
7.9
Good
4,252 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,175 reviews
Southwest
7.9
Good
4,252 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,085 reviews
Southwest
7.9
Good
4,252 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Charlotte 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 Charlotte to Ontario?

    If you book a flight from Charlotte to Ontario, you will be flying from Douglas to Ontario. Flights to Ontario (ONT) from Charlotte Douglas (CLT) take 4h 48m for a nonstop flight. There is 1 flight from Douglas to Ontario per day from 6 airlines.

  • How long is the flight from Charlotte to Ontario?

    For as low as $371, Frontier can have you in Ontario from Charlotte in 7h 25m. Charlotte and Ontario are separated by a distance of 2072 mi. This flight may include one or multiple stops.

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

    Currently priced at $45, Spirit Airlines will fly you from Charlotte to Ontario and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $169 and $276, respectively. Spirit Airlines is 88% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Charlotte to Ontario one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $78. Delta flights start at $138 while deals on United Airlines start at $148 one-way.

  • What are the cheapest flights from Charlotte to Ontario?

    The cheapest flight price from Charlotte to Ontario is $361. On average you can expect to pay $453. The most popular route, (Charlotte Douglas - Ontario), can usually be booked for $183.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Charlotte 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 Charlotte to Ontario?

    Currently, June is the cheapest month in which you can book a flight from Charlotte to Ontario (average of $105). Flying from Charlotte to Ontario in April is currently the most expensive (average of $199). 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.

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Top 6 airlines flying from Charlotte to Ontario

Discover the top 6 airlines that operate flights from Charlotte to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$263FlexibilityNo cancel feeOn-time65%
FrontierCheapest$169Average$288FlexibilityNo cancel feeOn-time62%
DeltaCheapest$276Average$353FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$293Average$378FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$299Average$411FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$306Average$429FlexibilityNo cancel feeOn-time69%

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