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Cheap flights from Ontario to Greenville from C$ 329

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — GSP
20 Feb — 27 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Greenville

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Greenville
Explore the most affordable flight options available from Ontario to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2026.

Thu 19/28:30 p.m.
YYZ
-
GSP
1 stop21h 02m
Multiple Airlines
Mon 23/26:22 p.m.
GSP
-
YYZ
1 stop20h 31m
Multiple Airlines
Deal found 21/1C$ 477
Mon 16/28:00 a.m.
YUL
-
GSP
1 stop9h 32m
Multiple Airlines
Mon 23/28:18 p.m.
GSP
-
YUL
1 stop28h 12m
Multiple Airlines
Deal found 19/1C$ 619
Fri 6/310:59 a.m.
YYZ
-
GSP
1 stop11h 06m
American Airlines
Fri 13/36:00 a.m.
GSP
-
YYZ
1 stop4h 17m
American Airlines
Deal found 20/1C$ 643
Wed 15/44:30 p.m.
YYZ
-
GSP
2 stops17h 28m
United Airlines
Wed 22/47:42 p.m.
GSP
-
YYZ
2 stops16h 01m
United Airlines
Deal found 21/1C$ 672
Mon 16/26:00 p.m.
YUL
-
GSP
2 stops26h 41m
United Airlines
Mon 23/26:30 a.m.
GSP
-
YUL
2 stops25h 15m
United Airlines
Deal found 19/1C$ 676
Tue 24/210:00 a.m.
YYZ
-
GSP
1 stop4h 16m
United Airlines
Thu 26/26:12 a.m.
GSP
-
YYZ
1 stop7h 31m
United Airlines
Deal found 19/1C$ 680
Mon 2/27:00 a.m.
YUL
-
GSP
1 stop9h 23m
Delta
Tue 3/26:45 p.m.
GSP
-
YUL
1 stop4h 27m
Delta
Deal found 18/1C$ 711
Fri 6/37:15 a.m.
YYZ
-
GSP
1 stop12h 23m
Multiple Airlines
Fri 13/38:47 p.m.
GSP
-
YYZ
2 stops38h 39m
Multiple Airlines
Deal found 20/1C$ 722
Fri 6/32:25 p.m.
YUL
-
GSP
1 stop18h 13m
American Airlines
Fri 13/36:00 a.m.
GSP
-
YUL
1 stop16h 56m
American Airlines
Deal found 20/1C$ 726
Wed 1/73:59 p.m.
YYZ
-
GSP
1 stop18h 29m
WestJet
Wed 5/811:10 a.m.
GSP
-
YYZ
1 stop4h 08m
WestJet
Deal found 21/1C$ 727
Tue 23/66:00 a.m.
YYZ
-
GSP
1 stop4h 28m
WestJet
Thu 23/77:15 a.m.
GSP
-
YYZ
1 stop6h 10m
WestJet
Deal found 21/1C$ 730
Thu 29/18:00 a.m.
YUL
-
GSP
1 stop8h 55m
Multiple Airlines
Sun 1/24:55 p.m.
GSP
-
YUL
2 stops28h 00m
Multiple Airlines
Deal found 18/1C$ 730

Find flight deals from Ontario to Greenville

Keep the following information in mind while searching for Ontario to Greenville flight deals. Data was last updated 21 January 2026.

Round-trip from

C$ 477

One-way from

C$ 329

Popular in

September

Cheapest in

April
19/2-23/2
  • 19/2-23/2
  • 2 total stops
  • 41h 33m total
  • Ontario to Greenville
Search Deals
American Airlines
  • American Airlines
  • 7/3
  • 1 total stop
  • 8h 49m total
  • Ontario to Greenville
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
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 629,999 searches. Data last updated 21 January 2026.
Use the filters below to find and compare flights from Ontario to Greenville that are best for you.

Fly from

Ontario

Fly to

Greenville

Route

Depart

Return

Price

TorontoGreenville

YYZ - GSP

YYZGSP

Toronto Pearson Intl

Thu 19/2

8:30 p.m.-5:32 p.m.

1 stop21h 02m

Greenville

Mon 23/2

6:22 p.m.-2:53 p.m.

1 stop20h 31m

C$ 477

MontrealGreenville

YUL - GSP

YULGSP

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

8:00 a.m.-5:32 p.m.

1 stop9h 32m

Greenville

Mon 23/2

8:18 p.m.-12:30 a.m.

1 stop28h 12m

C$ 619

TorontoGreenville

YYZ - GSP

YYZGSP

Toronto Pearson Intl

Fri 6/3

10:59 a.m.-10:05 p.m.

1 stop11h 06m

Greenville

Fri 13/3

6:00 a.m.-10:17 a.m.

1 stop4h 17m

C$ 643

TorontoGreenville

YYZ - GSP

YYZGSP

Toronto Pearson Intl

Wed 15/4

7:43 p.m.-9:58 a.m.

1 stop14h 15m

Greenville

Wed 22/4

7:42 p.m.-10:04 a.m.

1 stop14h 22m

C$ 672

MontrealGreenville

YUL - GSP

YULGSP

Montreal Pierre Elliott Trudeau Intl

Sat 25/4

9:30 a.m.-7:15 p.m.

1 stop9h 45m

Greenville

Mon 27/4

6:59 p.m.-8:40 a.m.

1 stop13h 41m

C$ 676

MontrealGreenville

YUL - GSP

YULGSP

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

6:00 p.m.-8:41 p.m.

2 stops26h 41m

Greenville

Mon 23/2

6:30 a.m.-10:20 a.m.

1 stop27h 50m

C$ 676

TorontoGreenville

YYZ - GSP

YYZGSP

Toronto Pearson Intl

Fri 22/5

7:45 a.m.-1:10 p.m.

1 stop5h 25m

Greenville

Mon 25/5

7:55 p.m.-12:04 a.m.

1 stop4h 09m

C$ 680

TorontoGreenville

YYZ - GSP

YYZGSP

Toronto Pearson Intl

Tue 24/2

10:00 a.m.-2:16 p.m.

1 stop4h 16m

Greenville

Thu 26/2

6:12 a.m.-1:43 p.m.

1 stop7h 31m

C$ 680

TorontoGreenville

YYZ - GSP

YYZGSP

Toronto Pearson Intl

Tue 24/2

12:20 p.m.-4:31 p.m.

1 stop4h 11m

Greenville

Thu 26/2

6:49 a.m.-11:07 a.m.

1 stop4h 18m

C$ 683

MontrealGreenville

YUL - GSP

YULGSP

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

7:00 a.m.-4:23 p.m.

1 stop9h 23m

Greenville

Tue 3/2

6:45 p.m.-11:12 p.m.

1 stop4h 27m

C$ 711

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 28 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Greenville

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

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Greenville (average of C$ 178). Flying from Region of Ontario to Greenville in January is currently the most expensive (average of C$ 575). 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.

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.

  • What airport do you fly into for flights to Greenville from Ontario?

    Located just 16.7 km from the city centre, Greenville (GSP) is the airport most travelers will use when flying to Greenville from Ontario.

  • How long is the flight from Region of Ontario to Greenville?

    A quick flight from Region of Ontario to Greenville can take about 9h 45m. American Airlines provides one of the quickest options available for as low as C$ 676. The distance between Region of Ontario and Greenville is about 1374 km. This flight may include one or multiple stops.

  • What are the most popular routes from Region of Ontario to Greenville?

    The most popular flight routes from Region of Ontario to Greenville are Toronto Pearson Intl - Greenville, Montreal Pierre Elliott Trudeau Intl - Greenville and Thunder Bay - Greenville.

  • 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.

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

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Greenville (average of C$ 178). Flying from Region of Ontario to Greenville in January is currently the most expensive (average of C$ 575). 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 Greenville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Ontario to Greenville

Discover the top 4 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 629,999 searches. Data last updated 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 387AverageC$ 471FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 418AverageC$ 602FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 421AverageC$ 421FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 476AverageC$ 743FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Greenville?

When you search for this flight from Ontario to Greenville, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Greenville?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Greenville by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Greenville with no change fees?

Need flexible booking options for your flight to Greenville from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Greenville become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Greenville flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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