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Spartanburg

$80+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CLT
mag 18 — mag 251
lun 5/18
lun 5/25
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Spartanburg are usually found in October or September, booked 66 days in advance, depart on a Tuesday or Friday and return on a Tuesday

Cheap 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 aprile 18, 2026.

This Frontier deal was found by Cheapflights users on 4/14. 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.
ven 5/228:03 am
ONT
-
CLT
1 stop6h 52m
Frontier
mar 5/268:55 am
CLT
-
ONT
1 stop9h 49m
Frontier
Deal found 4/14$160
This Booking.com deal was found by Cheapflights users on 4/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven 5/228:06 pm
ONT
-
CLT
1 stop16h 54m
Frontier
lun 5/252:20 pm
CLT
-
ONT
1 stop28h 24m
Frontier
Deal found 4/15$172
This Frontier deal was found by Cheapflights users on 4/14. 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.
gio 4/3012:59 am
ONT
-
CLT
1 stop13h 36m
Frontier
mar 5/55:20 pm
CLT
-
ONT
1 stop9h 29m
Frontier
Deal found 4/14$180
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 5/208:06 pm
ONT
-
CLT
1 stop16h 54m
Frontier
sab 5/235:58 pm
CLT
-
ONT
1 stop16h 10m
Frontier
Deal found 4/14$185
This Frontier deal was found by Cheapflights users on 4/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sab 5/233:30 pm
ONT
-
CLT
1 stop12h 29m
Frontier
gio 5/287:14 pm
CLT
-
ONT
1 stop7h 35m
Frontier
Deal found 4/17$190
This CheapOair deal was found by Cheapflights users on 4/13. 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.
ven 5/15:33 pm
ONT
-
CLT
1 stop20h 23m
Frontier
lun 5/46:18 pm
CLT
-
ONT
1 stop18h 47m
Frontier
Deal found 4/13$191
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 5/312:59 am
ONT
-
CLT
1 stop13h 24m
Frontier
lun 5/115:58 pm
CLT
-
ONT
1 stop16h 37m
Frontier
Deal found 4/14$193
This CheapOair deal was found by Cheapflights users on 4/14. 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.
sab 5/233:30 pm
ONT
-
CLT
1 stop12h 29m
Frontier
lun 5/252:20 pm
CLT
-
ONT
1 stop28h 24m
Frontier
Deal found 4/14$196

Find flight deals from Ontario to Spartanburg

Keep the following information in mind while searching for Ontario to Spartanburg flight deals. Data was last updated aprile 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(Frontier)

One-way from

$80
(Priceline)

Popular in

December

Cheapest in

October

Average price

$410
Provider with most accurate pricing for Los Angeles Los Angeles-Charlotte Douglas flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Charlotte Douglas flights.
Search Deals
From Ontario to Spartanburg
Search Deals
One-way flight from Ontario to Spartanburg
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 aprile 18, 2026.
Use the filters below to find and compare flights from Ontario to Spartanburg that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

mer 6/3

5:50 pm-10:35 am

2 stops13h 45m

Charlotte Douglas

sab 6/6

5:35 am-10:57 am

1 stop8h 22m

$448

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

mer 5/27

6:45 am-11:53 pm

2 stops14h 08m

Charlotte Douglas

mer 6/3

2:38 pm-11:34 pm

2 stops11h 56m

$453

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

sab 5/2

5:40 am-6:35 pm

2 stops9h 55m

Charlotte Douglas

sab 5/16

6:10 am-3:35 pm

2 stops12h 25m

$462
Quickest round-trip

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

mar 7/28

9:40 am-11:44 pm

2 stops11h 04m

Charlotte Douglas

gio 8/6

6:59 am-10:38 am

1 stop6h 39m

$463

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

dom 7/19

11:55 pm-10:55 am

1 stop8h 00m

Charlotte Douglas

sab 7/25

1:00 pm-10:40 pm

2 stops12h 40m

$468

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

dom 6/14

5:15 am-8:40 pm

2 stops12h 25m

Charlotte Douglas

sab 6/20

1:05 pm-10:40 pm

2 stops12h 35m

$476

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

lun 7/20

6:01 pm-10:24 am

2 stops13h 23m

Charlotte Douglas

sab 7/25

6:00 am-12:08 pm

2 stops9h 08m

$480
Cheapest one-way

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

ven 8/14

11:55 pm-12:20 pm

1 stop9h 25m

$229
Quickest one-way

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

lun 10/12

11:55 pm-11:05 am

1 stop8h 10m

$229

OntarioCharlotte

ONT - CLT

ONTCLT

Ontario

lun 5/18

9:55 pm-10:35 am

1 stop9h 40m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 16 resultsSorted by cheapest first
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 April 10, 2026.

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 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 aprile 18, 2026.

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.

How much does it cost to fly round-trip from Ontario to Spartanburg?

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 aprile 18, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
4,330 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,330 reviews
Southwest
8.0
Very good
4,330 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,424 reviews
Southwest
8.0
Very good
4,330 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,605 reviews
Southwest
8.0
Very good
4,330 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.1
Good
11,604 reviews
Southwest
8.0
Very good
4,330 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
2,987 reviews
Southwest
8.0
Very good
4,330 reviews

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 2 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 can get you from Ontario to Spartanburg in just under 14h 08m. Your travel time can differ by up to . Airlines will cover a distance of 2072 mi.

  • 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 $78. United Airlines flights start at $156 while deals on American Airlines start at $158 one-way.

  • What are the cheapest flights from Ontario to Spartanburg?

    While on average a flight from Ontario to Spartanburg is generally $427, our data shows the cheapest flight currently is $166. When looking at the most popular route, (Ontario - Charlotte Douglas), you can expect to pay $167 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.

See more FAQs

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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 aprile 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$105Average$272FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$421FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$208Average$473FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$274Average$443FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$481FlexibilityNo cancel feeOn-time63%

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