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$136+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
CLT — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$278
(Southwest)

One-way from

$136
(Trip.com)

Popular in

November

Cheapest in

April

Average price

$414

Good round-trip deal

$397 or less

Good one-way deal

$198 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 ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:30 amCLT - ONT
2 stops11h 10mSouthwest
Wed 9/176:45 amONT - CLT
1 stop6h 50mSouthwest
Deal found 6/11$278
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/411:26 amCLT - ONT
1 stop10h 01mFrontier
Sun 8/2412:59 amONT - CLT
1 stop12h 38mFrontier
Deal found 6/11$305
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/45:58 pmCLT - ONT
1 stop7h 29mDelta
Mon 8/256:05 amONT - CLT
2 stops11h 28mDelta
Deal found 6/11$351
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:15 pmCLT - ONT
1 stop7h 51mUnited Airlines
Tue 8/126:00 amONT - CLT
1 stop7h 00mUnited Airlines
Deal found 6/10$397
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/143:05 pmCLT - ONT
1 stop6h 20mAmerican Airlines
Sun 8/1710:29 pmONT - CLT
Nonstop4h 41mAmerican Airlines
Deal found 6/12$405

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 June 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

Wed 9/10

6:30 am-2:40 pm

2 stops11h 10m

Ontario

Wed 9/17

6:45 am-4:35 pm

1 stop6h 50m

$278

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Mon 8/4

11:26 am-6:27 pm

1 stop10h 01m

Ontario

Sun 8/24

12:59 am-4:37 pm

1 stop12h 38m

$305

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Mon 8/4

5:58 pm-10:27 pm

1 stop7h 29m

Ontario

Mon 8/25

6:05 am-8:33 pm

2 stops11h 28m

$351

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 8/7

5:15 pm-10:06 pm

1 stop7h 51m

Ontario

Tue 8/12

6:00 am-4:00 pm

1 stop7h 00m

$397

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 8/14

3:05 pm-6:25 pm

1 stop6h 20m

Ontario

Sun 8/17

10:29 pm-6:10 am

Nonstop4h 41m

$405

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Tue 6/24

2:15 pm-9:51 pm

1 stop10h 36m

$136

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Mon 8/18

5:29 pm-11:40 pm

1 stop9h 11m

$139

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Tue 7/8

5:31 pm-11:50 pm

1 stop9h 19m

$175

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sat 7/19

6:45 pm-11:15 pm

1 stop7h 30m

$184

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sun 8/10

7:45 pm-9:28 pm

Nonstop4h 43m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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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 9, 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 June 12, 2025.

It’s optimal to fly from Charlotte to Ontario at noon. By choosing this option you can save up to 19% 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 evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Charlotte to Ontario. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $278, Southwest will fly you from Charlotte to Ontario and back. In addition to Southwest, 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 $305 and $346, respectively. Southwest is 34% 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 Delta, which is currently one of the cheapest options available, starting at $139. Frontier flights start at $175 while deals on Southwest start at $184 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 $318. The most popular route, (Charlotte Douglas - Ontario), can usually be booked for $278.

  • 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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Alternative routes for Charlotte to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Charlotte to Ontario

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$238FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$216Average$371FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$309Average$471FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$328Average$358FlexibilityNo cancel feeOn-time63%

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