HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$78+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ONT
abr. 9 — abr. 161
jue. 4/9
jue. 4/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Charlotte to Ontario with Cheapflights

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.
Cheapflights Tip: The best prices from Charlotte Douglas to Ontario are usually found in September or August, booked 55 days in advance, depart on a Tuesday 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 marzo 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
sáb. 4/255:51 pm
CLT
-
ONT
1 stop9h 04m
Frontier
lun. 5/412:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/5$156
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
mié. 4/297:49 pm
CLT
-
ONT
1 stop14h 42m
Frontier
lun. 5/412:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/6$166
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
sáb. 5/25:51 pm
CLT
-
ONT
1 stop9h 04m
Frontier
mar. 5/512:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/5$168
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
sáb. 5/25:51 pm
CLT
-
ONT
1 stop9h 04m
Frontier
lun. 5/412:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/6$172
This Trip.com deal was found by Cheapflights users on 3/6. 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.
sáb. 4/255:51 pm
CLT
-
ONT
1 stop9h 04m
Frontier
mar. 4/2812:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/6$175
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
vie. 5/16:30 pm
CLT
-
ONT
1 stop8h 25m
Frontier
mar. 5/512:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/6$178
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/1410:00 am
CLT
-
ONT
1 stop16h 55m
Frontier
lun. 4/2012:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/10$184
This Trip.com deal was found by Cheapflights users on 3/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/157:49 pm
CLT
-
ONT
1 stop7h 06m
Frontier
mar. 4/2112:59 am
ONT
-
CLT
1 stop14h 55m
Frontier
Deal found 3/8$192
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/227:49 pm
CLT
-
ONT
1 stop14h 42m
Frontier
vie. 5/112:59 am
ONT
-
CLT
1 stop12h 57m
Frontier
Deal found 3/8$194
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/25:51 pm
CLT
-
ONT
1 stop9h 04m
Frontier
lun. 5/45:33 pm
ONT
-
CLT
1 stop22h 21m
Frontier
Deal found 3/8$197
This Trip.com deal was found by Cheapflights users on 3/5. 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.
dom. 4/192:57 pm
CLT
-
ONT
1 stop28h 41m
Frontier
vie. 4/2412:59 am
ONT
-
CLT
1 stop12h 57m
Frontier
Deal found 3/5$198

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 marzo 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$156
(Kiwi.com)

One-way from

$78
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$538

Good round-trip deal

$433 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. 6% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 marzo 10, 2026.
Use the filters below to find and compare flights from Charlotte to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

mar. 4/21

4:45 pm-9:50 pm

1 stop8h 05m

Ontario

mar. 4/28

1:34 pm-10:59 pm

1 stop6h 25m

$349

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

mié. 4/15

10:34 am-9:50 pm

2 stops14h 16m

Ontario

mié. 4/22

1:34 pm-10:59 pm

1 stop6h 25m

$354

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

sáb. 5/2

10:34 am-8:36 pm

2 stops13h 02m

Ontario

jue. 5/7

6:59 pm-10:45 am

2 stops12h 46m

$359

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

jue. 4/9

6:15 am-2:20 pm

1 stop11h 05m

Ontario

lun. 4/13

9:55 pm-10:35 am

1 stop9h 40m

$384

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

lun. 4/20

6:15 am-1:10 pm

2 stops9h 55m

Ontario

jue. 4/23

8:10 am-10:00 pm

2 stops10h 50m

$418
Quickest round-trip

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

sáb. 4/11

5:12 pm-9:00 pm

1 stop6h 48m

Ontario

sáb. 4/18

7:05 am-4:26 pm

1 stop6h 21m

$423

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

vie. 7/31

7:35 am-2:00 pm

1 stop9h 25m

Ontario

jue. 8/6

10:00 am-9:50 pm

1 stop8h 50m

$437

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

lun. 7/13

7:35 am-2:00 pm

1 stop9h 25m

Ontario

vie. 7/24

9:25 pm-10:55 am

2 stops10h 30m

$442

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

vie. 5/29

6:02 pm-11:34 pm

1 stop8h 32m

Ontario

vie. 6/5

5:50 pm-10:35 am

2 stops13h 45m

$458

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

vie. 7/31

11:45 am-6:15 pm

1 stop9h 30m

Ontario

lun. 8/3

5:05 pm-8:47 am

2 stops12h 42m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 22 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust 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 FlightHub the most. FlightHub 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 March 6, 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 February is currently the most expensive (average of $246). 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 marzo 10, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Charlotte to Ontario as you normally would.

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 marzo 10, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited 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
4,317 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

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
4,317 reviews
Southwest
8.0
Very good
4,317 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

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
8,276 reviews
Southwest
8.0
Very good
4,317 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

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.
United Airlines
7.4
Good
9,409 reviews
Southwest
8.0
Very good
4,317 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

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
7.1
Good
11,414 reviews
Southwest
8.0
Very good
4,317 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

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
5.7
Fair
3,033 reviews
Southwest
8.0
Very good
4,317 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

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 4h 51m 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 $349, United Airlines can have you in Ontario from Charlotte in 8h 05m. 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 $190 and $216, respectively. Spirit Airlines is 89% 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 $96. 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 $408. On average you can expect to pay $518. The most popular route, (Charlotte Douglas - Ontario), can usually be booked for $200.

  • 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 February is currently the most expensive (average of $246). 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 Charlotte to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Raleigh to Las Vegas flights
Charlotte to Las Vegas flights
Raleigh to Los Angeles flights
Raleigh to San Francisco flights
Charlotte to Los Angeles flights
Charlotte to San Francisco flights
Norfolk to Las Vegas flights
Charlotte to San Diego flights
Raleigh to San Diego flights
Raleigh to Ontario flights
Greensboro to Las Vegas flights
Knoxville to Las Vegas flights
Myrtle Beach to Las Vegas flights
Charlotte to Santa Ana flights
Asheville to San Diego flights
Knoxville to Los Angeles flights
Wilmington to Las Vegas flights
Norfolk to Los Angeles flights
Greensboro to Los Angeles flights
Knoxville to San Diego flights
Asheville to Las Vegas flights
Norfolk to San Diego flights
Charlotte to Burbank flights
Asheville to San Francisco flights
Charlotte to Reno flights
Asheville to Los Angeles flights
Raleigh to Santa Ana flights
Charlotte to Sacramento flights
Raleigh to Sacramento flights
Charlotte to San Jose flights
Raleigh to Reno flights
Knoxville to Ontario flights
Norfolk to San Francisco flights
Charlotte to Palm Springs flights
Raleigh to San Jose flights
Knoxville to Santa Ana flights
Wilmington to San Diego flights
Knoxville to San Francisco flights
Greensboro to San Diego flights
Raleigh to Palm Springs flights
Norfolk to Ontario flights
Wilmington to San Francisco flights
Myrtle Beach to Los Angeles flights
Blountville to Las Vegas flights
Raleigh to Oakland flights
Greensboro to San Francisco flights
Raleigh to Fresno flights
Charlotte to Fresno flights

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 marzo 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$263FlexibilityNo cancel feeOn-time65%
FrontierCheapest$190Average$290FlexibilityNo cancel feeOn-time62%
DeltaCheapest$216Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$432FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$293Average$398FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$306Average$433FlexibilityNo cancel feeOn-time69%

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.