$188+ Cheap flights from Ontario to Greenville (ONT - GSP)

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — GSP
Jul 20 — Jul 271

Cheap flight deals from Ontario to Greenville

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Greenville (GSP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 15, 2024.

Popular in

January

Cheapest in

April

Round-trip from

$336
(American Airlines)

One-way from

$188
(Delta)
High demand for flights, 33% potential price rise
Best time to find cheap flights, 24% potential price drop
From Ontario to Greenville
One-way flight from Ontario to Greenville

What is the cheapest day to fly round-trip from Ontario to Greenville?

Travelers have found that booking a Friday departure is the best way to save up to 51% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Ontario to Greenville?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 16 days in advance, which can save you up to 94% on flights from Ontario to Greenville compared to booking the week you need them. Waiting 16 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $520. For sooner than that we have options available in the next 3 days from $700.

What is the cheapest month to fly from Ontario to Greenville?

August is one of the best times of the year to fly to Greenville from Ontario. Prices for August average $461 per person but you can even find prices for as low as $186. The most expensive prices can be found in the month of December. Opting for a August flight can save you 45% on your journey compared to booking in December

What is the cheapest time of day to fly from ONT to GSP?

One of the essential ways to save on airfare from Ontario to Greenville is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

Cheap Ontario to Greenville flights in July & August 2024

Find cheap flight options from Ontario to Greenville specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,777,731 searches. Prices were last updated on July 15, 2024.
The lowest fares we've come across on flights traveling from Ontario to Greenville in July and August 2024. More deals are always being added, so be sure to check back regularly.
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/146:00 amONT - GSP
1 stop6h 52mUnited Airlines
Sat 10/194:25 pmGSP - ONT
1 stop7h 07mUnited Airlines
Deal found 7/13$436
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/146:00 amONT - GSP
1 stop6h 52mUnited Airlines
Wed 10/167:00 amGSP - ONT
2 stops13h 17mUnited Airlines
Deal found 7/14$441
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/145:10 amONT - GSP
2 stops13h 45mUnited Airlines
Wed 10/167:00 amGSP - ONT
2 stops13h 17mUnited Airlines
Deal found 7/14$446
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/275:05 amONT - GSP
1 stop7h 16mUnited Airlines
Fri 8/305:15 pmGSP - ONT
1 stop7h 16mUnited Airlines
Deal found 7/14$456
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/275:05 amONT - GSP
2 stops13h 19mUnited Airlines
Fri 8/305:15 pmGSP - ONT
1 stop7h 16mUnited Airlines
Deal found 7/14$461
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/46:00 amONT - GSP
1 stop6h 52mUnited Airlines
Wed 8/75:10 pmGSP - ONT
1 stop7h 01mUnited Airlines
Deal found 7/14$501
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/105:10 amONT - GSP
2 stops15h 00mUnited Airlines
Tue 8/135:10 pmGSP - ONT
1 stop7h 01mUnited Airlines
Deal found 7/14$526
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/46:00 amONT - GSP
1 stop6h 52mUnited Airlines
Wed 8/77:00 amGSP - ONT
2 stops13h 28mUnited Airlines
Deal found 7/14$547
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/296:25 pmONT - GSP
2 stops18h 27mUnited Airlines
Thu 8/85:10 pmGSP - ONT
1 stop7h 01mUnited Airlines
Deal found 7/14$559

Ontario to Greenville 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Greenville in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,777,731 searches. Data last updated July 15, 2024.
The lowest fares we've come across on flights traveling from Ontario to Greenville in July and August 2024. More deals are always being added, so be sure to check back regularly.
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2212:50 pmONT - GSP
1 stop6h 26mAmerican Airlines
Tue 10/295:44 amGSP - ONT
1 stop8h 56mAmerican Airlines
Deal found 7/14$336
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/226:32 amONT - GSP
2 stops8h 00mAmerican Airlines
Tue 10/295:44 amGSP - ONT
1 stop8h 56mAmerican Airlines
Deal found 7/14$341
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/166:34 amONT - GSP
1 stop5h 51mAmerican Airlines
Thu 11/214:15 pmGSP - ONT
1 stop8h 57mAmerican Airlines
Deal found 7/14$344
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/226:32 amONT - GSP
2 stops8h 00mAmerican Airlines
Tue 10/295:33 amGSP - ONT
2 stops9h 04mAmerican Airlines
Deal found 7/14$346
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1610:34 amONT - GSP
2 stops8h 11mAmerican Airlines
Thu 11/217:55 pmGSP - ONT
1 stop7h 12mAmerican Airlines
Deal found 7/14$349
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1810:00 pmONT - GSP
1 stop8h 14mDelta
Tue 10/224:05 pmGSP - ONT
1 stop6h 17mDelta
Deal found 7/14$356
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1912:00 pmONT - GSP
1 stop8h 55mDelta
Sun 10/206:00 amGSP - ONT
1 stop7h 37mDelta
Deal found 7/14$397
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1610:34 amONT - GSP
2 stops7h 31mAmerican Airlines
Thu 11/215:33 amGSP - ONT
2 stops9h 04mAmerican Airlines
Deal found 7/14$407
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2610:00 pmONT - GSP
1 stop8h 25mDelta
Mon 9/306:39 pmGSP - ONT
1 stop7h 07mDelta
Deal found 7/14$417

One-way flights to Greenville from Ontario

Search for one-way flight options from Ontario to Greenville. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,777,731 searches. Data last updated July 15, 2024.
Some of the best available deals we've found on one-way flights from Ontario to Greenville. Users can also find round-trip Ontario to Greenville flights by using the search form above.
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1912:00 pmONT - GSP
1 stop8h 55mDelta
Deal found 7/14$188
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/310:36 pmONT - GSP
1 stop6h 34mAmerican Airlines
Deal found 7/13$199
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:21 pmONT - GSP
2 stops9h 49mAmerican Airlines
Deal found 7/13$204
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1910:30 pmONT - GSP
1 stop6h 47mAmerican Airlines
Deal found 7/14$226
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/265:15 amONT - GSP
2 stops13h 44mUnited Airlines
Deal found 7/14$231
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1810:30 pmONT - GSP
1 stop9h 21mAmerican Airlines
Deal found 7/14$253
This American Airlines deal was found by Cheapflights users on 7/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1810:29 pmONT - GSP
1 stop7h 00mAmerican Airlines
Deal found 7/14$293
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/266:25 pmONT - GSP
2 stops25h 45mUnited Airlines
Deal found 7/13$353
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2610:36 pmONT - GSP
1 stop9h 14mAmerican Airlines
Deal found 7/13$403

Find flights from Ontario to Greenville within your budget

Customize your flight search to find flights from Ontario to Greenville 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 2,777,731 searches. Data last updated July 15, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$336 - $822

Route

Depart

Return

Price

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Tue 10/22

1 stop6h 26m

Greenville

Tue 10/29

1 stop8h 56m

$336

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Tue 10/22

2 stops8h 00m

Greenville

Tue 10/29

1 stop8h 56m

$341

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sat 11/16

1 stop5h 51m

Greenville

Thu 11/21

1 stop8h 57m

$344

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Tue 10/22

2 stops8h 00m

Greenville

Tue 10/29

2 stops9h 04m

$346

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Fri 10/18

1 stop8h 14m

Greenville

Tue 10/22

1 stop6h 17m

$356

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sat 10/19

1 stop8h 55m

Greenville

Sun 10/20

1 stop7h 37m

$397

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Wed 8/14

1 stop6h 52m

Greenville

Sat 10/19

1 stop7h 07m

$436

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Wed 8/14

1 stop6h 52m

Greenville

Wed 10/16

2 stops13h 17m

$441

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Thu 12/5

2 stops13h 09m

Greenville

Sun 12/8

2 stops14h 57m

$822

Flights are sorted by cheapest first

Deals found on 7/14

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Greenville. Price data was last updated on July 7, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Greenville flight should consider departing on Saturday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Greenville

Have a flexible travel schedule? Discover the best time to fly to Greenville 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.

Temperature and rainfall in Greenville by month

Plan your trip to Greenville by taking into account the average temperature and rainfall totals by month.

GSP

Temperature

41 - 78.8 °F

If weather is an important factor for your trip to Greenville, use this chart to help with planning. For those seeking warmer temperatures, July 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 January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Greenville

Get insights into the airlines that provide service to Greenville. 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 Greenville. Reviews last updated July 15, 2024.
Read through reviews of airlines operating flights from Ontario to Greenville, such as Delta, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,373 reviews

Crew

8.6

Entertainment

7.2

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

8.1
Very good
9,373 reviews
8.1
Very good
9,373 reviews

Crew

8.6

Entertainment

7.2

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

8.0
Very good
9,797 reviews
8.1
Very good
9,373 reviews

Crew

8.6

Entertainment

7.2

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

7.4
Good
10,000 reviews
8.1
Very good
9,373 reviews

Crew

8.6

Entertainment

7.2

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

7.3
Good
10,000 reviews
8.1
Very good
9,373 reviews

Crew

8.6

Entertainment

7.2

Overall

8.1

Comfort

7.9

Boarding

8.2

Food

7.2

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Greenville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Ontario to Greenville for under $400 on Cheapflights?

    Yes, there are multiple flights from Ontario to Greenville for under $400. The cheapest flight booked recently is on American Airlines for just $336, but on average you can expect to pay $417.

  • What are the cheapest airlines flying from Ontario to Greenville round-trip?

    According to our current data, American Airlines ($336), Delta ($356), and United Airlines ($436) offers the cheapest pricing from Ontario to Greenville. These flights start at 31% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $188 on Delta. Other airlines that offer cheap prices include American Airlines from $199 and United Airlines from $231 one-way.

  • What does ONT to GSP mean?

    ONT and GSP are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to GSP refers to a flight route from Ontario Airport to Greenville Airport.

  • Can I find deals for flights from Ontario to Greenville that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Greenville flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Greenville with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Greenville flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Greenville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Greenville that allow pets onboard?

    Many airlines flying from Ontario to Greenville offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Greenville?

    Yes, you can often find last-minute deals on Ontario to Greenville flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Greenville flight deals updated?

    The Ontario to Greenville flight deals you see on this page were last updated on 7/14.

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Greenville (average of $319). Flying from Ontario to Greenville in March is currently the most expensive (average of $377). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Greenville
See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Ontario to Greenville

Discover the top 2 airlines that operate flights from Ontario to Greenville. 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 2,777,731 searches. Data last updated July 15, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$472FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$355Average$460FlexibilityNo cancel feeOn-time71%

Search flights from Ontario to Greenville by cabin class

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