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Spartanburg

$65+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CLT
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Spartanburg are usually found in October or January, booked 37 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 November 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$130
(Priceline)

One-way from

$65
(Frontier)

Popular in

December

Cheapest in

October

Average price

$509
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. 10% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 18, 2025.

This CheapOair deal was found by Cheapflights users on 11/16. 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 12/133:20 pmONT - CLT
1 stop22h 29mFrontier
Sat 1/310:22 pmCLT - ONT
1 stop12h 02mFrontier
Deal found 11/16$206
This CheapOair deal was found by Cheapflights users on 11/15. 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 12/72:59 pmONT - CLT
1 stop27h 44mFrontier
Sun 12/143:07 pmCLT - ONT
1 stop28h 26mFrontier
Deal found 11/15$210
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/246:45 amONT - CLT
1 stop25h 37mFrontier
Wed 12/315:59 pmCLT - ONT
2 stops30h 18mFrontier
Deal found 11/18$211
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Fri 12/53:20 pmONT - CLT
2 stops25h 40mMultiple Airlines
Fri 12/125:44 pmCLT - ONT
1 stop23h 41mMultiple Airlines
Deal found 11/16$212
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Thu 12/46:15 amONT - CLT
2 stops12h 28mFrontier
Fri 12/55:44 pmCLT - ONT
1 stop23h 41mFrontier
Deal found 11/16$220
This Kiwi.com deal was found by Cheapflights users on 11/17. 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.
Thu 12/410:12 pmONT - CLT
2 stops15h 37mFrontier
Sun 12/73:07 pmCLT - ONT
1 stop28h 26mFrontier
Deal found 11/17$229
This Kiwi.com deal was found by Cheapflights users on 11/17. 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.
Tue 12/212:30 pmONT - CLT
2 stops46h 11mFrontier
Sun 1/188:58 amCLT - ONT
1 stop13h 03mFrontier
Deal found 11/17$238
This Kiwi.com deal was found by Cheapflights users on 11/17. 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.
Sun 12/72:59 pmONT - CLT
1 stop27h 44mFrontier
Tue 12/93:42 pmCLT - ONT
2 stops46h 27mFrontier
Deal found 11/17$244
This CheapOair deal was found by Cheapflights users on 11/17. 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 12/1112:04 pmONT - CLT
1 stop25h 45mFrontier
Sun 12/143:07 pmCLT - ONT
1 stop28h 26mFrontier
Deal found 11/17$252
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Fri 12/53:20 pmONT - CLT
2 stops25h 40mMultiple Airlines
Mon 12/87:22 pmCLT - ONT
1 stop19h 05mMultiple Airlines
Deal found 11/16$258

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 November 18, 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

Fri 12/26

6:00 am-9:27 pm

2 stops36h 27m

Charlotte Douglas

Wed 12/31

5:59 pm-8:53 am

1 stop17h 54m

$344

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 1/8

12:41 pm-11:49 pm

1 stop8h 08m

Charlotte Douglas

Tue 1/13

5:25 am-11:31 am

1 stop9h 06m

$398

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Tue 1/27

5:10 pm-8:40 am

2 stops12h 30m

Charlotte Douglas

Sun 2/1

5:25 am-11:31 am

1 stop9h 06m

$403

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Wed 12/24

11:59 pm-2:13 pm

2 stops11h 14m

Charlotte Douglas

Wed 12/31

10:00 am-9:07 pm

2 stops14h 07m

$407

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 1/8

6:05 am-6:30 pm

2 stops9h 25m

Charlotte Douglas

Tue 1/13

11:05 am-4:55 pm

2 stops8h 50m

$408

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Wed 12/3

6:00 am-4:24 pm

1 stop7h 24m

Charlotte Douglas

Wed 12/17

5:27 am-10:31 am

1 stop8h 04m

$408

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Tue 12/2

12:12 pm-11:42 pm

1 stop8h 30m

Charlotte Douglas

Tue 12/16

5:34 pm-11:58 pm

1 stop9h 24m

$408

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Fri 2/13

12:40 pm-10:30 pm

1 stop6h 50m

Charlotte Douglas

Mon 2/16

5:35 am-10:35 am

1 stop8h 00m

$413

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Thu 12/18

6:00 am-4:22 pm

1 stop7h 22m

Charlotte Douglas

Thu 1/1

6:00 am-10:00 am

1 stop7h 00m

$413

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

Fri 12/26

7:05 am-7:10 pm

1 stop9h 05m

Charlotte Douglas

Thu 1/1

6:00 am-10:00 am

1 stop7h 00m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

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 November 14, 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, January is the cheapest month in which you can book a flight from Ontario to Spartanburg (average of $42). Flying from Ontario to Spartanburg in November is currently the most expensive (average of $235). 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 November 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Spartanburg in the afternoon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.

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 Tuesday evenings when fares are most often at their lowest. Monday 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 November 18, 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

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
7.9
Good
8,003 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
9,019 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
11,045 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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
3,105 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

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?

    Frontier, Delta, and United Airlines can get you from Ontario to Spartanburg in just under 8h 08m. Your travel time can differ by up to 28h 19m. 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 flights from Ontario to Spartanburg?

    While on average a flight from Ontario to Spartanburg is generally $638, our data shows the cheapest flight currently is $139. When looking at the most popular route, (Ontario - Charlotte Douglas), you can expect to pay $183 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, January is the cheapest month in which you can book a flight from Ontario to Spartanburg (average of $42). Flying from Ontario to Spartanburg in November is currently the most expensive (average of $235). 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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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 November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$252FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$208Average$386FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$437FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$435FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$481FlexibilityNo cancel feeOn-time63%

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