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$222+ Cheap flights from Greenville (GSP) to Ontario

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — YYZ
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from Greenville to Ontario

Keep the following information in mind while searching for Greenville to Ontario flight deals. Data was last updated January 8, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$303
(Kiwi.com)

One-way from

$222
(American Airlines)

Popular in

October

Cheapest in

February

Average price

$537
Provider with most accurate pricing for Greenville-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Greenville-Toronto (YTO) flights.
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From Greenville to Ontario
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One-way flight from Greenville to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Greenville to Ontario

Cheapest flights from Greenville to Ontario
Explore the most affordable flight options available from Greenville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/6. 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 2/195:17 pmGSP - YYZ
1 stop28h 58mMultiple Airlines
Thu 2/267:40 amYYZ - GSP
1 stop8h 43mMultiple Airlines
Deal found 1/6$306
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Mon 2/24:39 pmGSP - YYZ
1 stop7h 35mMultiple Airlines
Fri 2/67:15 amYYZ - GSP
1 stop12h 23mMultiple Airlines
Deal found 1/6$320
This United Airlines deal was found by Cheapflights users on 1/6. 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 1/226:35 amGSP - YOW
1 stop14h 43mUnited Airlines
Mon 1/265:55 pmYOW - GSP
1 stop5h 53mUnited Airlines
Deal found 1/6$349
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 2/206:22 pmGSP - YYZ
1 stop17h 06mMultiple Airlines
Fri 2/277:00 amYYZ - GSP
1 stop10h 59mMultiple Airlines
Deal found 1/5$396
This American Airlines deal was found by Cheapflights users on 1/7. 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 3/247:05 amGSP - YYZ
1 stop9h 36mAmerican Airlines
Mon 3/3011:00 amYYZ - GSP
1 stop11h 05mAmerican Airlines
Deal found 1/7$397
This Air Canada deal was found by Cheapflights users on 1/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/226:20 amGSP - YOW
2 stops10h 03mAir Canada
Mon 1/265:55 pmYOW - GSP
1 stop5h 53mAir Canada
Deal found 1/7$432
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/216:00 amGSP - YOW
2 stops11h 18mUnited Airlines
Sat 2/285:48 pmYOW - GSP
1 stop6h 11mUnited Airlines
Deal found 1/7$437
This American Airlines deal was found by Cheapflights users on 1/7. 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.
Wed 1/217:16 amGSP - YYZ
1 stop9h 19mAmerican Airlines
Sat 1/2410:59 amYYZ - GSP
1 stop10h 06mAmerican Airlines
Deal found 1/7$444
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Mon 3/166:05 pmGSP - YUL
2 stops30h 25mMultiple Airlines
Sun 3/228:00 amYUL - GSP
1 stop12h 56mMultiple Airlines
Deal found 1/8$447
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 2/265:13 pmGSP - YUL
1 stop7h 32mMultiple Airlines
Tue 3/34:00 pmYUL - GSP
2 stops46h 08mMultiple Airlines
Deal found 1/8$463
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
Mon 1/264:39 pmGSP - YYZ
1 stop7h 46mMultiple Airlines
Tue 1/272:10 pmYYZ - GSP
2 stops19h 09mMultiple Airlines
Deal found 1/7$484
This American Airlines deal was found by Cheapflights users on 1/8. 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 2/226:53 pmGSP - YOW
2 stops22h 05mAmerican Airlines
Sun 3/16:45 amYOW - GSP
2 stops17h 09mAmerican Airlines
Deal found 1/8$487

Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville to Ontario 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 January 8, 2026.
Use the filters below to find and compare flights from Greenville to Ontario that are best for you.

Fly from

Greenville

Fly to

Ontario

Route

Depart

Return

Price

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Thu 2/19

5:17 pm-10:15 pm

1 stop28h 58m

Toronto Pearson Intl

Thu 2/26

7:40 am-4:23 pm

1 stop8h 43m

$306

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Mon 2/2

4:39 pm-12:14 am

1 stop7h 35m

Toronto Pearson Intl

Fri 2/6

11:30 pm-9:07 pm

2 stops45h 37m

$345

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/22

6:35 am-9:18 pm

1 stop14h 43m

Ottawa

Mon 1/26

5:55 pm-11:48 pm

1 stop5h 53m

$349

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Sat 2/21

12:05 pm-4:30 pm

1 stop4h 25m

Ottawa

Sat 2/28

5:48 pm-11:59 pm

1 stop6h 11m

$349

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Fri 2/20

6:22 pm-11:28 am

1 stop17h 06m

Toronto Pearson Intl

Fri 2/27

7:00 am-5:59 pm

1 stop10h 59m

$396

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Tue 3/24

7:05 am-4:41 pm

1 stop9h 36m

Toronto Pearson Intl

Mon 3/30

11:00 am-10:05 pm

1 stop11h 05m

$397

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/22

6:20 am-4:23 pm

2 stops10h 03m

Ottawa

Mon 1/26

5:55 pm-11:48 pm

1 stop5h 53m

$432

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Wed 1/21

7:16 am-4:35 pm

1 stop9h 19m

Toronto Pearson Intl

Sat 1/24

10:59 am-9:05 pm

1 stop10h 06m

$444

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 3/16

6:05 pm-12:30 am

2 stops30h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 3/22

8:00 am-8:56 pm

1 stop12h 56m

$447

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Thu 2/26

5:13 pm-12:45 am

1 stop7h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 3/3

4:00 pm-2:08 pm

2 stops46h 08m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 26 results
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Best time to book a flight from Greenville to Ontario

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

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

Currently, May is the cheapest month in which you can book a flight from Greenville to Region of Ontario (average of $111). Flying from Greenville to Region of Ontario in July is currently the most expensive (average of $481). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated January 8, 2026.
Read through reviews of airlines operating flights from Greenville to Ontario, such as Delta, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,025 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,025 reviews
Delta
7.9
Good
8,025 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,139 reviews
Delta
7.9
Good
8,025 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,095 reviews
Delta
7.9
Good
8,025 reviews

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Greenville to Ontario. 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 Greenville to Ontario?

    Greenville (GSP) is the airport you will fly out of if you book a flight from Greenville to Ontario. It is only a 10.4 mi journey to Greenville (GSP) from Greenville’s city center.

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

    Airlines like United Airlines, American Airlines, and Air Canada fly from Greenville to Region of Ontario in about 9h 36m. The time it takes to get you to your destination can typically vary by up to 5h 07m. Greenville and Region of Ontario are separated by a distance of 622 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Greenville - Montreal Pierre Elliott Trudeau Intl or Greenville - Ottawa, Greenville - Toronto Pearson Intl is the most popular route from Greenville to Region of Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Greenville to Ontario 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 Greenville to Region of Ontario?

    Currently, May is the cheapest month in which you can book a flight from Greenville to Region of Ontario (average of $111). Flying from Greenville to Region of Ontario in July is currently the most expensive (average of $481). 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 Greenville to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Greenville to Ontario

Discover the top 3 airlines that operate flights from Greenville to Ontario. 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$312Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$335Average$466FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$348Average$609FlexibilityNo cancel feeOn-time69%

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