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$110+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ONT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Charlotte Douglas to Ontario are usually found in April or March, booked 54 days in advance, depart on a Wednesday or Friday 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 July 3, 2025.

Round-trip from

$225
(Frontier)

One-way from

$110
(Priceline)

Popular in

November

Cheapest in

April

Average price

$431

Good round-trip deal

$395 or less

Good one-way deal

$287 or less
From Charlotte Douglas to Ontario
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One-way flight from Charlotte Douglas to Ontario
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Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Frontier deal was found by Cheapflights users on 7/2. 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 8/75:21 pmCLT - ONT
1 stop9h 29mFrontier
Wed 8/2012:59 amONT - CLT
1 stop12h 38mFrontier
Deal found 7/2$225
This Trip.com deal was found by Cheapflights users on 7/3. 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 8/119:28 pmCLT - ONT
1 stop21h 52mMultiple Airlines
Sat 8/165:21 pmONT - CLT
1 stop20h 05mMultiple Airlines
Deal found 7/3$324
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/141:55 pmCLT - ONT
2 stops11h 35mSouthwest
Mon 8/258:35 amONT - CLT
2 stops9h 35mSouthwest
Deal found 7/2$353

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 July 3, 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 8/7

5:21 pm-11:50 pm

1 stop9h 29m

Ontario

Wed 8/20

12:59 am-4:37 pm

1 stop12h 38m

$225

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Mon 8/11

9:28 pm-4:20 pm

1 stop21h 52m

Ontario

Sat 8/16

5:21 pm-4:26 pm

1 stop20h 05m

$324

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 8/14

1:55 pm-10:30 pm

2 stops11h 35m

Ontario

Mon 8/25

8:35 am-9:10 pm

2 stops9h 35m

$353

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sun 8/31

5:32 pm-11:50 pm

1 stop9h 18m

$110

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 8/2

9:28 pm-4:19 pm

1 stop21h 51m

$182

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 8/2

7:50 pm-9:38 pm

Nonstop4h 48m

$198

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sun 8/31

9:55 am-6:55 pm

2 stops12h 00m

$200

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 8/2

5:31 pm-11:17 pm

1 stop8h 46m

$208

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Tue 9/30

8:29 am-12:51 pm

1 stop7h 22m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 June 27, 2025.

The best time to book flights from Charlotte to Ontario is 54 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, August is the cheapest month in which you can book a flight from Charlotte to Ontario (average of $246). Flying from Charlotte to Ontario in March is currently the most expensive (average of $328). 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 July 3, 2025.

It’s optimal to fly from Charlotte to Ontario at noon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the evening.

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 mornings 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 July 3, 2025.
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

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Frontier
5.9
Fair
3,286 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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

    Currently priced at $225, Frontier will fly you from Charlotte to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Southwest for as low as $353. Frontier is 47% 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 $110. American Airlines flights start at $198 while deals on Southwest start at $200 one-way.

  • What are the cheapest flights from Charlotte to Ontario?

    The cheapest flight price from Charlotte to Ontario is $198. On average you can expect to pay $377. The most popular route, (Charlotte Douglas - Ontario), can usually be booked for $318.

  • 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, August is the cheapest month in which you can book a flight from Charlotte to Ontario (average of $246). Flying from Charlotte to Ontario in March is currently the most expensive (average of $328). 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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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$165FlexibilityNo cancel feeOn-time65%
FrontierCheapest$168Average$238FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$216Average$346FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$309Average$469FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$328Average$372FlexibilityNo cancel feeOn-time63%

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