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$80+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — YYZ
Feb 5 — Feb 121
Thu 2/5
Thu 2/12
1 adult, Economy
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Cheap 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 6, 2026.

This Mytrip deal was found by Cheapflights users on 1/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/29:48 amGSP - YYZ
1 stop13h 32mMultiple Airlines
Mon 2/910:15 amYYZ - GSP
1 stop10h 44mMultiple Airlines
Deal found 1/4$301
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.
Thu 2/195:17 pmGSP - YYZ
1 stop28h 58mMultiple Airlines
Thu 2/263:40 pmYYZ - GSP
1 stop26h 19mMultiple Airlines
Deal found 1/5$308
This Kiwi.com deal was found by Cheapflights users on 1/4. 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 1/256:45 pmGSP - YYZ
1 stop28h 35mMultiple Airlines
Sat 1/3111:15 amYYZ - GSP
1 stop29h 40mMultiple Airlines
Deal found 1/4$336
This United Airlines 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 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 1/5$349
This Kiwi.com deal was found by Cheapflights users on 1/4. 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 - YUL
1 stop7h 28mMultiple Airlines
Sun 2/225:25 pmYUL - GSP
2 stops24h 07mMultiple Airlines
Deal found 1/4$391
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 1/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/287:16 amGSP - YYZ
1 stop9h 19mAmerican Airlines
Sun 2/110:59 amYYZ - GSP
1 stop11h 17mAmerican Airlines
Deal found 1/5$414
This Air Canada 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 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 1/263:10 pmYOW - GSP
1 stop8h 38mAir Canada
Deal found 1/5$433
This Kiwi.com deal was found by Cheapflights users on 1/4. 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 1/169:48 amGSP - YYZ
1 stop25h 55mMultiple Airlines
Sun 1/1811:15 amYYZ - GSP
1 stop21h 43mMultiple Airlines
Deal found 1/4$437
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.
Thu 2/195:17 pmGSP - YUL
1 stop23h 05mMultiple Airlines
Thu 2/266:45 amYUL - GSP
2 stops35h 14mMultiple Airlines
Deal found 1/5$499
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/293:05 pmGSP - YUL
1 stop8h 45mDelta
Thu 2/52:15 pmYUL - GSP
1 stop8h 29mDelta
Deal found 1/5$573
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:48 pmGSP - YUL
1 stop15h 57mAmerican Airlines
Mon 9/2810:35 amYUL - GSP
1 stop12h 01mAmerican Airlines
Deal found 1/5$592

Find 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 6, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$301
(Mytrip)

One-way from

$80
(Trip.com)

Popular in

October

Cheapest in

February

Average price

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

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 6, 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

Mon 2/2

9:48 am-11:20 pm

1 stop13h 32m

Toronto Pearson Intl

Mon 2/9

10:15 am-8:59 pm

1 stop10h 44m

$301

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Thu 2/19

5:17 pm-10:15 pm

1 stop28h 58m

Toronto Pearson Intl

Thu 2/26

3:40 pm-5:59 pm

1 stop26h 19m

$308

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/22

10:00 am-2:27 pm

1 stop4h 27m

Ottawa

Mon 1/26

5:55 pm-11:48 pm

1 stop5h 53m

$349

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Mon 2/9

6:20 am-1:32 pm

1 stop7h 12m

Ottawa

Wed 2/18

2:15 pm-7:24 pm

1 stop5h 09m

$349

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Sun 1/25

6:45 pm-11:20 pm

1 stop28h 35m

Toronto Pearson Intl

Sat 1/31

11:30 pm-8:58 am

2 stops33h 28m

$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

Wed 1/28

7:16 am-4:35 pm

1 stop9h 19m

Toronto Pearson Intl

Sun 2/1

10:59 am-10:16 pm

1 stop11h 17m

$414

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Mon 2/9

6:35 am-4:23 pm

2 stops9h 48m

Ottawa

Wed 2/18

3:15 pm-11:59 pm

1 stop8h 44m

$433

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/22

6:35 am-4:23 pm

2 stops9h 48m

Ottawa

Mon 1/26

5:55 pm-11:48 pm

1 stop5h 53m

$433

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Fri 1/16

9:48 am-11:43 am

1 stop25h 55m

Toronto Pearson Intl

Sun 1/18

11:15 am-8:58 am

1 stop21h 43m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 27 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 6, 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
8,018 reviews

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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
8,018 reviews
Delta
7.9
Good
8,018 reviews

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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
9,132 reviews
Delta
7.9
Good
8,018 reviews

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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
11,083 reviews
Delta
7.9
Good
8,018 reviews

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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, Air Canada, and Delta fly from Greenville to Region of Ontario in about 8h 45m. The time it takes to get you to your destination can typically vary by up to 1h 52m. Greenville and Region of Ontario are separated by a distance of 854 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 6, 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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