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Spartanburg

$106+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CLT
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Spartanburg are usually found in January or September, booked 81 days in advance, depart on a Tuesday or Monday 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 October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$163
(Mytrip)

One-way from

$106
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$432
Provider with most accurate pricing for Los Angeles-Charlotte Douglas flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Charlotte Douglas flights.
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From Ontario to Spartanburg
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One-way flight from Ontario to Spartanburg
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Highest demand for flights based on searches. 5% potential increase in price ($25 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 October 2025
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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 October 2, 2025.

This Mytrip deal was found by Cheapflights users on 10/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:53 amONT - CLT
1 stop7h 24mFrontier
Sun 11/168:45 amCLT - ONT
1 stop13h 04mFrontier
Deal found 10/2$163
This Priceline deal was found by Cheapflights users on 10/1. 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 10/306:53 amONT - CLT
1 stop7h 29mFrontier
Thu 11/66:07 pmCLT - ONT
1 stop8h 43mFrontier
Deal found 10/1$194
This Frontier deal was found by Cheapflights users on 10/1. 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 11/1310:42 pmONT - CLT
2 stops15h 35mFrontier
Mon 11/176:12 pmCLT - ONT
1 stop8h 38mFrontier
Deal found 10/1$200
This Frontier deal was found by Cheapflights users on 10/1. 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.
Fri 11/144:05 pmONT - CLT
2 stops17h 18mFrontier
Mon 11/176:12 pmCLT - ONT
1 stop8h 38mFrontier
Deal found 10/1$202
This CheapOair deal was found by Cheapflights users on 9/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/21:46 pmONT - CLT
1 stop27h 17mFrontier
Thu 11/64:50 pmCLT - ONT
1 stop28h 59mFrontier
Deal found 9/30$210
This CheapOair deal was found by Cheapflights users on 10/1. 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 11/58:45 amONT - CLT
1 stop29h 32mFrontier
Sun 11/96:20 pmCLT - ONT
1 stop19h 50mFrontier
Deal found 10/1$214
This Frontier deal was found by Cheapflights users on 10/1. 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 11/36:53 amONT - CLT
1 stop7h 43mFrontier
Thu 11/66:07 pmCLT - ONT
1 stop8h 43mFrontier
Deal found 10/1$225
This Frontier deal was found by Cheapflights users on 10/1. 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 10/1612:32 pmONT - CLT
2 stops16h 28mFrontier
Mon 10/2010:00 amCLT - ONT
1 stop9h 28mFrontier
Deal found 10/1$230
This Frontier deal was found by Cheapflights users on 9/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:53 amONT - CLT
1 stop6h 46mFrontier
Thu 10/235:34 pmCLT - ONT
1 stop9h 16mFrontier
Deal found 9/29$239

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 October 2, 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

Wed 10/29

6:00 am-4:19 pm

1 stop7h 19m

Charlotte Douglas

Mon 11/3

2:27 pm-7:19 pm

1 stop7h 52m

$299

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/18

1:15 pm-10:59 pm

1 stop6h 44m

Charlotte Douglas

Tue 10/28

6:45 am-5:34 pm

2 stops13h 49m

$318

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 12/6

9:05 am-8:35 pm

2 stops8h 30m

Charlotte Douglas

Tue 12/16

7:00 am-2:50 pm

2 stops10h 50m

$324

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/18

6:25 am-5:05 pm

1 stop7h 40m

Charlotte Douglas

Wed 10/29

6:00 am-1:30 pm

1 stop10h 30m

$327

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/18

1:15 pm-10:59 pm

1 stop6h 44m

Charlotte Douglas

Wed 10/29

8:15 am-12:31 pm

1 stop7h 16m

$338

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/18

9:10 am-8:45 pm

1 stop8h 35m

Charlotte Douglas

Tue 10/28

7:05 am-1:45 pm

2 stops9h 40m

$339

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Tue 10/7

10:00 pm-8:47 am

1 stop7h 47m

Charlotte Douglas

Sat 10/11

2:27 pm-7:19 pm

1 stop7h 52m

$347

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/18

11:36 am-11:50 pm

1 stop9h 14m

Charlotte Douglas

Tue 10/21

5:30 am-10:26 am

1 stop7h 56m

$347

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 11/6

10:50 am-9:35 pm

1 stop7h 45m

Charlotte Douglas

Sun 11/9

5:50 am-12:25 pm

2 stops9h 35m

$347

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Sat 10/18

6:25 am-5:05 pm

1 stop7h 40m

Charlotte Douglas

Sat 10/25

6:30 am-10:40 am

1 stop7h 10m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Showing 1-10 of 21 results
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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 September 26, 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 81 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 October 2, 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 October 2, 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.
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
8.0
Very good
7,962 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
8,933 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
7.2
Good
11,033 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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
5.8
Fair
3,155 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

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 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?

    This flight path from Ontario to Spartanburg was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Ontario to Spartanburg?

    Delta, United Airlines, and Southwest can get you from Ontario to Spartanburg in just under 6h 44m. Your travel time can differ by up to 1h 46m. Airlines will cover a distance of 2072 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $116. American Airlines flights start at $130 while deals on Delta start at $140 one-way.

  • What are the cheapest flights from Ontario to Spartanburg?

    While on average a flight from Ontario to Spartanburg is generally $885, our data shows the cheapest flight currently is $99. When looking at the most popular route, (Ontario - Charlotte Douglas), you can expect to pay $164 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.

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Alternative routes for Ontario to Spartanburg

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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 October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$238FlexibilityNo cancel feeOn-time62%
DeltaCheapest$216Average$443FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$406FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$426FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$467FlexibilityNo cancel feeOn-time63%

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