Spartanburg

$127+ Cheap flights from Ontario (ONT) to Spartanburg, SC

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CLT
Aug 12 — Aug 191
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Cheapflights Tip: The best prices from Ontario to Spartanburg are usually found in September or January, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Ontario to Spartanburg

Keep the following information in mind while searching for Ontario to Spartanburg flight deals. Data was last updated August 7, 2025.

Round-trip from

$257
(United Airlines)

One-way from

$127
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$460
From Ontario to Spartanburg
One-way flight from Ontario to Spartanburg
Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Ontario to Spartanburg

Cheapest flights from Ontario to Spartanburg
Explore the most affordable flight options available from Ontario to Spartanburg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This United Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 8/186:31 pmONT - CLT
2 stops11h 29mUnited Airlines
Thu 8/2110:33 amCLT - ONT
2 stops13h 10mUnited Airlines
Deal found 8/7$257
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:59 pmONT - CLT
1 stop16h 26mFrontier
Sun 10/55:20 pmCLT - ONT
1 stop17h 33mFrontier
Deal found 8/6$258
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:38 pmONT - CLT
2 stops12h 14mUnited Airlines
Fri 9/54:27 pmCLT - ONT
1 stop7h 16mUnited Airlines
Deal found 8/6$262
This Gotogate deal was found by Cheapflights users on 8/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:59 pmONT - CLT
1 stop16h 26mFrontier
Mon 9/155:20 pmCLT - ONT
1 stop29h 34mFrontier
Deal found 8/5$267
This CheapOair deal was found by Cheapflights users on 8/7. 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.
Sat 10/118:24 amONT - CLT
1 stop22h 21mFrontier
Mon 10/205:34 pmCLT - ONT
1 stop9h 16mFrontier
Deal found 8/7$273
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:09 pmONT - CLT
1 stop20h 28mFrontier
Fri 8/2910:15 pmCLT - ONT
1 stop15h 09mFrontier
Deal found 8/7$275
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:09 pmONT - CLT
1 stop20h 28mFrontier
Mon 8/255:32 pmCLT - ONT
1 stop9h 18mFrontier
Deal found 8/6$278
This Priceline deal was found by Cheapflights users on 8/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:53 amONT - CLT
1 stop6h 46mFrontier
Sun 10/265:34 pmCLT - ONT
1 stop9h 16mFrontier
Deal found 8/5$279
This Frontier deal was found by Cheapflights users on 8/7. 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.
Wed 9/312:59 amONT - CLT
1 stop12h 26mFrontier
Sun 9/712:27 pmCLT - ONT
1 stop8h 48mFrontier
Deal found 8/7$281
This CheapOair deal was found by Cheapflights users on 8/7. 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 8/2412:59 amONT - CLT
1 stop12h 38mFrontier
Mon 9/811:50 amCLT - ONT
2 stops35h 04mFrontier
Deal found 8/7$283
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Wed 11/512:59 amONT - CLT
1 stop12h 33mFrontier
Sun 11/95:34 pmCLT - ONT
1 stop9h 16mFrontier
Deal found 8/7$284

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Spartanburg 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 August 7, 2025.
Use the filters below to find and compare flights from Ontario to Spartanburg that are best for you.

Fly from

Ontario

Fly to

Spartanburg

Route

Depart

Return

Price

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 9/4

5:10 am-3:11 pm

1 stop7h 01m

Charlotte Douglas

Fri 9/5

5:30 pm-10:30 pm

1 stop8h 00m

$257

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Wed 10/1

8:59 pm-4:25 pm

1 stop16h 26m

Charlotte Douglas

Sun 10/5

5:20 pm-7:53 am

1 stop17h 33m

$258

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Wed 9/10

8:59 pm-4:25 pm

1 stop16h 26m

Charlotte Douglas

Mon 9/15

5:20 pm-7:54 pm

1 stop29h 34m

$265

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/11

8:24 am-9:45 am

1 stop22h 21m

Charlotte Douglas

Mon 10/20

5:34 pm-11:50 pm

1 stop9h 16m

$273

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 9/13

8:45 am-8:30 pm

1 stop8h 45m

Charlotte Douglas

Wed 9/24

6:30 am-2:40 pm

2 stops11h 10m

$275

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Tue 9/2

7:00 am-5:21 pm

1 stop7h 21m

Charlotte Douglas

Tue 9/9

5:30 pm-10:30 pm

1 stop8h 00m

$277

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 8/21

5:09 pm-4:37 pm

1 stop20h 28m

Charlotte Douglas

Mon 8/25

5:32 pm-11:50 pm

1 stop9h 18m

$278

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 10/23

6:53 am-4:39 pm

1 stop6h 46m

Charlotte Douglas

Sun 10/26

5:34 pm-11:50 pm

1 stop9h 16m

$279

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Mon 8/25

6:50 pm-10:26 am

2 stops12h 36m

Charlotte Douglas

Tue 8/26

4:27 pm-8:43 pm

1 stop7h 16m

$282

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 9/27

8:59 pm-4:25 pm

1 stop16h 26m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 20 results
1
2

Best time to book a flight from Ontario to Spartanburg

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

How far ahead should I book a flight from Ontario to Spartanburg?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Spartanburg. Price data was last updated on August 1, 2025.

The price you pay for your flight from Ontario to Spartanburg may vary depending on when you book. For the best chance of a lower fare, look to book 37 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Spartanburg (average of $248). Flying from Ontario to Spartanburg 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 ONT to SB1?

Find hourly flight availability from Ontario to Spartanburg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 7, 2025.

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

What is the cheapest day to fly from Ontario to Spartanburg?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Spartanburg. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Spartanburg flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Spartanburg

Get insights into the airlines that provide service to Spartanburg. 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 Spartanburg. Reviews last updated August 7, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Ontario to Spartanburg by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

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.

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

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.
8.0
Very good

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

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.

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

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.

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

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.

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

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 Ontario to Spartanburg. 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 from for flights from Ontario to Spartanburg?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Spartanburg. 5 airlines have flights from Ontario to Spartanburg on a regular basis. Booking flights from Ontario to Spartanburg should not be difficult; the airport handles an average of 0 outbound flights to Spartanburg per day.

  • How popular is this Ontario to Spartanburg flight route?

  • What are the cheapest flights from Ontario to Spartanburg?

    While on average a flight from Ontario to Spartanburg is generally $542, our data shows the cheapest flight currently is $106. When looking at the most popular route, (Ontario - Charlotte Douglas), you can expect to pay $257 for that flight.

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

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

  • How can I find direct flights from Ontario to Spartanburg?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Spartanburg 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 Ontario to Spartanburg?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Spartanburg (average of $248). Flying from Ontario to Spartanburg 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 Ontario to Spartanburg

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to Spartanburg

Discover the top 5 airlines that operate flights from Ontario to Spartanburg. 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 August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$178FlexibilityNo cancel feeOn-time62%
DeltaCheapest$216Average$440FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$428FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$296Average$407FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$305Average$436FlexibilityNo cancel feeOn-time63%

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