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$65+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ONT
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
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 Wednesday or Tuesday and return on a Tuesday

Cheap 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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$130
(CheapOair)

One-way from

$65
(CheapOair)

Popular in

December

Cheapest in

April

Average price

$476

Good round-trip deal

$369 or less

Good one-way deal

$497 or less
Provider with most accurate pricing for Charlotte Douglas-Ontario flight deals.
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Provider most trusted by Cheapflights users for Charlotte Douglas-Ontario flights.
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From Charlotte Douglas to Ontario
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One-way flight from Charlotte Douglas to Ontario
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Charlotte Douglas to Ontario.
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Price to beat on a one-way flight from Charlotte Douglas to Ontario.
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Find 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 November 12, 2025.

This CheapOair deal was found by Cheapflights users on 11/12. 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
Sat 12/133:20 pmONT - CLT
1 stop22h 29mFrontier
Deal found 11/12$130
This CheapOair deal was found by Cheapflights users on 11/11. 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 12/43:07 pmCLT - ONT
1 stop28h 26mFrontier
Sun 12/72:59 pmONT - CLT
1 stop27h 44mFrontier
Deal found 11/11$134
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:07 pmCLT - ONT
1 stop28h 26mFrontier
Sat 12/63:20 pmONT - CLT
1 stop22h 29mFrontier
Deal found 11/10$138
This CheapOair deal was found by Cheapflights users on 11/11. 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.
Sun 12/75:44 pmCLT - ONT
1 stop23h 41mFrontier
Sun 12/142:59 pmONT - CLT
1 stop27h 44mFrontier
Deal found 11/11$142
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:16 pmCLT - ONT
1 stop21h 12mFrontier
Thu 11/2712:58 amONT - CLT
1 stop12h 25mFrontier
Deal found 11/10$144
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:07 pmCLT - ONT
1 stop28h 26mMultiple Airlines
Mon 12/82:59 pmONT - CLT
2 stops18h 42mMultiple Airlines
Deal found 11/12$181
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:44 pmCLT - ONT
1 stop23h 41mFrontier
Mon 12/85:18 pmONT - CLT
2 stops13h 32mFrontier
Deal found 11/12$186
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:07 pmCLT - ONT
1 stop28h 26mFrontier
Wed 12/106:15 amONT - CLT
2 stops28h 26mFrontier
Deal found 11/12$190
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com 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 1/86:00 amONT - CLT
1 stop26h 22mFrontier
Deal found 11/11$193
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:44 pmCLT - ONT
2 stops20h 20mMultiple Airlines
Sun 12/72:59 pmONT - CLT
1 stop27h 44mMultiple Airlines
Deal found 11/12$197
This Booking.com deal was found by Cheapflights users on 11/11. 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.
Fri 12/55:44 pmCLT - ONT
1 stop23h 41mFrontier
Sun 12/286:45 amONT - CLT
1 stop25h 37mFrontier
Deal found 11/11$212

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 November 12, 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

Sun 11/23

5:16 pm-11:28 am

1 stop21h 12m

Ontario

Fri 11/28

8:15 am-9:21 pm

1 stop10h 06m

$382

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 11/27

6:00 am-10:52 am

1 stop7h 52m

Ontario

Wed 12/3

6:00 am-4:24 pm

1 stop7h 24m

$398

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Tue 12/9

4:20 pm-8:42 pm

1 stop7h 22m

Ontario

Tue 12/16

1:34 pm-10:56 pm

1 stop6h 22m

$407

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 11/27

6:00 am-10:52 am

1 stop7h 52m

Ontario

Fri 12/5

12:12 pm-9:26 pm

1 stop6h 14m

$419

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 12/25

6:00 am-10:00 am

1 stop7h 00m

Ontario

Tue 1/6

10:30 pm-8:42 am

1 stop7h 12m

$421

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 12/3

5:34 pm-11:58 pm

1 stop9h 24m

Ontario

Sat 12/6

12:12 pm-11:39 pm

1 stop8h 27m

$433

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 11/26

2:15 pm-7:42 pm

1 stop8h 27m

Ontario

Wed 12/3

10:25 pm-8:48 am

1 stop7h 23m

$458

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 12/6

6:30 am-5:37 pm

2 stops14h 07m

Ontario

Tue 12/9

5:05 am-10:56 pm

1 stop14h 51m

$465

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 12/6

10:00 am-8:42 pm

2 stops13h 42m

Ontario

Sun 12/7

1:34 pm-10:56 pm

1 stop6h 22m

$467

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Fri 12/5

8:15 am-12:32 pm

1 stop7h 17m

Ontario

Fri 12/5

6:41 pm-10:32 am

2 stops12h 51m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 23 results
1
2
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 November.
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 November 7, 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 $204). 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 November 12, 2025.

It’s optimal to fly from Charlotte to Ontario in the evening. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Charlotte to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Charlotte to Ontario flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 12, 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
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

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
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

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
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

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
11,049 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

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
8,139 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

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
3,114 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

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 5h 09m 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 $407, Frontier can have you in Ontario from Charlotte in 7h 22m. 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 United Airlines - these airlines can fly you to your destination from $168 and $216, 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 flights from Charlotte to Ontario?

    The cheapest flight price from Charlotte to Ontario is $149. On average you can expect to pay $462. The most popular route, (Charlotte Douglas - Ontario), can usually be booked for $135.

  • 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 $204). 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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$263FlexibilityNo cancel feeOn-time65%
FrontierCheapest$168Average$307FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$216Average$417FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$332FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$293Average$372FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$299Average$428FlexibilityNo cancel feeOn-time71%

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