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Ontario

$109+ Cheap flights from South Carolina to Ontario (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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from South Carolina to Ontario

Keep the following information in mind while searching for South Carolina to Ontario flight deals. Data was last updated May 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$238
(Frontier)

One-way from

$109
(Frontier)

Popular in

December

Cheapest in

May

Average price

$331
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From South Carolina to Ontario
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One-way flight from South Carolina to Ontario
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Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from South Carolina to Ontario

Cheapest flights from South Carolina to Ontario
Explore the most affordable flight options available from South Carolina to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Frontier deal was found by Cheapflights users on 4/30. 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 5/85:06 pmCLT - ONT
1 stop9h 53mFrontier
Thu 5/156:47 pmONT - CLT
1 stop11h 59mFrontier
Deal found 4/30$238
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 6/187:04 pmCHS - ONT
1 stop6h 58mAmerican Airlines
Tue 6/2411:59 pmONT - CHS
1 stop8h 56mAmerican Airlines
Deal found 4/30$271
This Delta deal was found by Cheapflights users on 4/30. 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.
Tue 6/176:20 amCHS - ONT
1 stop7h 18mDelta
Tue 7/111:49 amONT - CHS
1 stop6h 57mDelta
Deal found 4/30$297
This United Airlines deal was found by Cheapflights users on 4/30. 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 7/108:30 amCLT - ONT
1 stop7h 02mUnited Airlines
Tue 7/226:00 amONT - CLT
1 stop7h 00mUnited Airlines
Deal found 4/30$307
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 7/155:23 amSAV - ONT
1 stop8h 07mDelta
Tue 7/2910:05 pmONT - SAV
1 stop8h 20mDelta
Deal found 4/29$313
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 5/276:30 amGSP - ONT
1 stop7h 38mDelta
Tue 6/37:05 pmONT - GSP
2 stops12h 14mDelta
Deal found 4/29$318
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 6/35:59 pmAGS - ONT
1 stop7h 30mDelta
Tue 6/1711:49 amONT - AGS
1 stop6h 38mDelta
Deal found 4/29$331
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 5/256:56 amMYR - ONT
1 stop7h 54mAmerican Airlines
Fri 5/3010:40 pmONT - MYR
1 stop6h 50mAmerican Airlines
Deal found 4/30$335
This Southwest deal was found by Cheapflights users on 4/30. 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 6/411:15 amCLT - ONT
1 stop7h 30mSouthwest
Mon 6/98:50 amONT - CLT
1 stop7h 10mSouthwest
Deal found 4/30$342
This American Airlines deal was found by Cheapflights users on 4/28. 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 6/124:11 pmGSP - ONT
1 stop8h 22mAmerican Airlines
Sat 6/146:10 amONT - GSP
1 stop7h 51mAmerican Airlines
Deal found 4/28$351
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 6/244:28 pmAGS - ONT
1 stop9h 34mAmerican Airlines
Tue 7/17:02 pmONT - AGS
2 stops11h 08mAmerican Airlines
Deal found 4/29$360
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 5/275:35 pmGSP - ONT
1 stop7h 51mUnited Airlines
Tue 6/35:10 amONT - GSP
1 stop6h 49mUnited Airlines
Deal found 4/29$361

Cheapflights Fare Finder

Customize your flight search to find flights from South Carolina 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 May 1, 2025.
Use the filters below to find and compare flights from South Carolina to Ontario that are best for you.

Fly from

South Carolina

Fly to

Ontario

Route

Depart

Return

Price

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Sun 5/25

5:27 pm-11:51 pm

1 stop9h 24m

Ontario

Wed 5/28

5:21 pm-4:32 pm

1 stop20h 11m

$238

CharlestonOntario

CHS - ONT

CHSONT

Charleston

Wed 6/18

7:04 pm-11:02 pm

1 stop6h 58m

Ontario

Tue 6/24

11:59 pm-11:55 am

1 stop8h 56m

$271

CharlestonOntario

CHS - ONT

CHSONT

Charleston

Tue 6/17

6:20 am-10:38 am

1 stop7h 18m

Ontario

Tue 7/1

11:49 am-9:46 pm

1 stop6h 57m

$297

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Thu 7/10

8:30 am-12:32 pm

1 stop7h 02m

Ontario

Tue 7/22

6:00 am-4:00 pm

1 stop7h 00m

$307

SavannahOntario

SAV - ONT

SAVONT

Savannah/Hilton Head

Wed 6/18

4:10 pm-10:25 pm

1 stop9h 15m

Ontario

Tue 6/24

10:05 pm-9:28 am

1 stop8h 23m

$313

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Tue 5/27

6:30 am-11:08 am

1 stop7h 38m

Ontario

Tue 6/3

7:05 pm-10:19 am

2 stops12h 14m

$318

AugustaOntario

AGS - ONT

AGSONT

Augusta Bush Field

Tue 6/3

5:59 pm-10:29 pm

1 stop7h 30m

Ontario

Tue 6/17

11:49 am-9:27 pm

1 stop6h 38m

$331

Myrtle BeachOntario

MYR - ONT

MYRONT

Myrtle Beach Intl

Sun 5/25

6:56 am-11:50 am

1 stop7h 54m

Ontario

Fri 5/30

10:40 pm-8:30 am

1 stop6h 50m

$335

CharlotteOntario

CLT - ONT

CLTONT

Charlotte Douglas

Wed 6/4

11:15 am-3:45 pm

1 stop7h 30m

Ontario

Mon 6/9

8:50 am-7:00 pm

1 stop7h 10m

$342

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Thu 6/12

4:11 pm-9:33 pm

1 stop8h 22m

Ontario

Sat 6/14

6:10 am-5:01 pm

1 stop7h 51m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 57 results
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Best time to book a flight from South Carolina to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from South Carolina 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 South Carolina to Ontario

What is the cheapest month to book a flight from South Carolina to Ontario?

Currently, August is the cheapest month in which you can book a flight from South Carolina to Ontario (average of $246). Flying from South Carolina 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 SC to ONT?

Find hourly flight availability from South Carolina 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 May 1, 2025.

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

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 May 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from South Carolina to Ontario to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,922 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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 South Carolina to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from South Carolina?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from South Carolina.

  • What are the cheapest airlines to fly from South Carolina to Ontario one-way?

    The cheapest airlines for a one-way flight from South Carolina to Ontario are Frontier ($109), Southwest ($149), and Delta ($157).

  • What are the most popular routes from South Carolina to Ontario?

    Most travelers choose Charlotte Douglas - Ontario, Greenville - Ontario or Charleston - Ontario when deciding on the best route from South Carolina to Ontario.

  • Can I find deals for flights from South Carolina to Ontario that include hotel bookings?

    Yes. In addition to deals on South Carolina to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Carolina to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Carolina to Ontario.

  • Can I find deals for business class flights from South Carolina to Ontario?

    Yes. Cheapflights offers flight deals from South Carolina 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 South Carolina to Ontario?

    Currently, August is the cheapest month in which you can book a flight from South Carolina to Ontario (average of $246). Flying from South Carolina 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 South Carolina to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from South Carolina to Ontario

Discover the top 3 airlines that operate flights from South Carolina 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$270Average$487FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$462FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$346Average$516FlexibilityNo cancel feeOn-time63%

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