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Ontario

$89+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ONT
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 Thursday or Friday 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 January 21, 2026.

This Mytrip deal was found by Cheapflights users on 1/20. 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.
Thu 2/511:18 am
CLT
-
ONT
1 stop28h 25m
Frontier
Mon 2/96:20 am
ONT
-
CLT
1 stop6h 58m
Frontier
Deal found 1/20$180
This CheapOair deal was found by Cheapflights users on 1/19. 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 2/511:18 am
CLT
-
ONT
1 stop28h 25m
Frontier
Thu 2/192:08 pm
ONT
-
CLT
1 stop25h 49m
Frontier
Deal found 1/19$181
This Booking.com deal was found by Cheapflights users on 1/20. 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.
Thu 2/511:18 am
CLT
-
ONT
1 stop28h 25m
Frontier
Thu 2/262:08 pm
ONT
-
CLT
1 stop23h 10m
Frontier
Deal found 1/20$193
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 3/25:13 pm
CLT
-
ONT
1 stop9h 46m
Frontier
Sat 3/76:15 am
ONT
-
CLT
1 stop9h 13m
Frontier
Deal found 1/20$195
This CheapOair deal was found by Cheapflights users on 1/20. 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 3/25:13 pm
CLT
-
ONT
1 stop9h 46m
Frontier
Thu 3/52:08 pm
ONT
-
CLT
1 stop25h 40m
Frontier
Deal found 1/20$199
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Thu 2/195:13 pm
CLT
-
ONT
1 stop9h 46m
Frontier
Thu 2/266:05 am
ONT
-
CLT
1 stop7h 13m
Frontier
Deal found 1/20$201
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 3/27:08 pm
CLT
-
ONT
2 stops21h 03m
Multiple Airlines
Sat 3/76:15 am
ONT
-
CLT
1 stop9h 13m
Multiple Airlines
Deal found 1/20$208
This CheapOair deal was found by Cheapflights users on 1/20. 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 2/85:13 pm
CLT
-
ONT
1 stop10h 07m
Frontier
Thu 2/122:08 pm
ONT
-
CLT
1 stop25h 49m
Frontier
Deal found 1/20$215
This CheapOair deal was found by Cheapflights users on 1/20. 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 2/235:13 pm
CLT
-
ONT
1 stop9h 46m
Frontier
Thu 2/266:05 am
ONT
-
CLT
1 stop7h 13m
Frontier
Deal found 1/20$222
This CheapOair deal was found by Cheapflights users on 1/19. 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 1/265:13 pm
CLT
-
ONT
1 stop10h 07m
Frontier
Mon 2/26:20 am
ONT
-
CLT
1 stop6h 58m
Frontier
Deal found 1/19$223
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/207:15 pm
CLT
-
ONT
1 stop15h 11m
Frontier
Mon 2/233:28 pm
ONT
-
CLT
2 stops19h 23m
Frontier
Deal found 1/20$226

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$180
(CheapOair)

One-way from

$89
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$452

Good round-trip deal

$410 or less

Good one-way deal

$497 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. 12% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Charlotte Douglas to Ontario.
Search Deals
Price to beat on a one-way 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 January 21, 2026.
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 2/19

12:51 pm-11:59 pm

2 stops14h 08m

Ontario

Thu 2/26

6:05 am-4:18 pm

1 stop7h 13m

$246

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Mon 3/9

3:22 pm-9:04 pm

1 stop8h 42m

Ontario

Mon 3/16

4:22 pm-9:44 pm

1 stop26h 22m

$249

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sun 3/1

9:38 am-12:23 pm

1 stop29h 45m

Ontario

Fri 3/6

6:15 am-6:48 pm

1 stop9h 33m

$344

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 2/21

5:25 am-9:40 am

1 stop7h 15m

Ontario

Tue 2/24

8:55 am-6:30 pm

1 stop6h 35m

$372

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 2/21

4:54 pm-9:05 pm

1 stop7h 11m

Ontario

Sat 2/28

10:20 pm-8:40 am

1 stop7h 20m

$406

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 2/28

4:54 pm-9:05 pm

1 stop7h 11m

Ontario

Wed 3/4

10:20 pm-12:08 pm

2 stops10h 48m

$408

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 2/4

1:35 pm-9:45 pm

1 stop11h 10m

Ontario

Tue 2/10

6:50 am-4:20 pm

1 stop6h 30m

$410

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 2/19

7:00 pm-9:24 pm

Nonstop5h 24m

Ontario

Sun 2/22

11:58 pm-9:43 am

1 stop6h 45m

$423

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Fri 2/20

7:15 pm-7:26 am

1 stop15h 11m

$90

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Mon 2/23

5:13 pm-11:59 pm

1 stop9h 46m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Charlotte-Ontario flight deals on Cheapflights vs. FlightHub >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 Expedia the most. Expedia 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 January 16, 2026.

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, March is the cheapest month in which you can book a flight from Charlotte to Ontario (average of $96). Flying from Charlotte to Ontario in December is currently the most expensive (average of $198). 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.

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 January 21, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United 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
4,266 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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
8,089 reviews
Southwest
8.0
Very good
4,266 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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.
United Airlines
7.4
Good
9,191 reviews
Southwest
8.0
Very good
4,266 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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
11,174 reviews
Southwest
8.0
Very good
4,266 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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
8,364 reviews
Southwest
8.0
Very good
4,266 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

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.

  • How long is the flight from Charlotte to Ontario?

    For as low as $406, Frontier can have you in Ontario from Charlotte in 7h 11m. 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 $165 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 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 American Airlines start at $154 one-way.

  • What are the cheapest flights from Charlotte to Ontario?

    The cheapest flight price from Charlotte to Ontario is $298. On average you can expect to pay $460. The most popular route, (Charlotte Douglas - Ontario), can usually be booked for $208.

  • 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, March is the cheapest month in which you can book a flight from Charlotte to Ontario (average of $96). Flying from Charlotte to Ontario in December is currently the most expensive (average of $198). 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

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Alternative routes for Charlotte to Ontario

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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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$263FlexibilityNo cancel feeOn-time65%
FrontierCheapest$165Average$278FlexibilityNo cancel feeOn-time62%
DeltaCheapest$216Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$291Average$416FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$293Average$384FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$306Average$433FlexibilityNo cancel feeOn-time69%

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