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$229+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — YYZ
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
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 November 2, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$362
(Kiwi.com)

One-way from

$229
(United)

Popular in

September

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. 16% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/31. 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 11/63:36 pmGSP - YYZ
1 stop28h 24mMultiple Airlines
Fri 12/512:50 pmYYZ - GSP
1 stop6h 33mMultiple Airlines
Deal found 10/31$332
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/293:30 pmGSP - YYZ
2 stops28h 43mMultiple Airlines
Sat 1/33:25 pmYYZ - GSP
1 stop19h 28mMultiple Airlines
Deal found 11/1$362
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/2511:33 amGSP - YYZ
1 stop6h 25mMultiple Airlines
Wed 12/317:00 amYYZ - GSP
1 stop8h 55mMultiple Airlines
Deal found 11/1$363
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/293:30 pmGSP - YYZ
2 stops28h 43mMultiple Airlines
Sun 1/43:40 pmYYZ - GSP
1 stop28h 28mMultiple Airlines
Deal found 11/1$367
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/298:03 pmGSP - YYZ
1 stop15h 40mMultiple Airlines
Wed 12/317:00 amYYZ - GSP
1 stop8h 55mMultiple Airlines
Deal found 11/1$368
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/293:30 pmGSP - YYZ
2 stops28h 43mMultiple Airlines
Mon 1/57:10 amYYZ - GSP
1 stop12h 13mMultiple Airlines
Deal found 11/1$370
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/293:30 pmGSP - YYZ
2 stops28h 43mMultiple Airlines
Fri 1/27:10 amYYZ - GSP
1 stop12h 13mMultiple Airlines
Deal found 11/1$374
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/303:26 pmGSP - YYZ
1 stop20h 17mMultiple Airlines
Sat 1/33:25 pmYYZ - GSP
1 stop19h 28mMultiple Airlines
Deal found 11/1$392
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/303:26 pmGSP - YYZ
2 stops28h 37mMultiple Airlines
Mon 1/57:10 amYYZ - GSP
1 stop12h 13mMultiple Airlines
Deal found 11/1$399
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/303:26 pmGSP - YYZ
1 stop20h 17mMultiple Airlines
Fri 1/27:10 amYYZ - GSP
1 stop12h 13mMultiple Airlines
Deal found 11/1$404
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/249:53 pmGSP - YUL
2 stops19h 02mMultiple Airlines
Sun 11/304:35 pmYUL - GSP
1 stop28h 45mMultiple Airlines
Deal found 11/1$426
This Mytrip deal was found by Cheapflights users on 11/2. 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 12/153:00 pmGSP - YUL
2 stops17h 30mMultiple Airlines
Tue 12/304:35 pmYUL - GSP
2 stops23h 20mMultiple Airlines
Deal found 11/2$447

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 November 2, 2025.
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 11/6

3:36 pm-8:00 pm

1 stop28h 24m

Toronto Pearson Intl

Fri 12/5

12:50 pm-7:23 pm

1 stop6h 33m

$332

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Mon 12/29

3:30 pm-8:13 pm

2 stops28h 43m

Toronto Pearson Intl

Sun 1/4

3:40 pm-8:08 pm

1 stop28h 28m

$367

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Mon 12/29

3:30 pm-8:13 pm

2 stops28h 43m

Toronto Pearson Intl

Fri 1/2

7:10 am-7:23 pm

1 stop12h 13m

$374

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Tue 12/30

3:26 pm-11:43 am

1 stop20h 17m

Toronto Pearson Intl

Fri 1/2

7:10 am-7:23 pm

1 stop12h 13m

$404

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Fri 11/28

11:41 am-10:12 pm

1 stop10h 31m

Toronto Pearson Intl

Fri 12/5

12:50 pm-7:23 pm

1 stop6h 33m

$410

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Thu 11/6

8:03 pm-2:54 pm

1 stop18h 51m

Toronto Pearson Intl

Sun 11/9

4:00 pm-7:23 pm

2 stops27h 23m

$425

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 11/24

9:53 pm-4:55 pm

2 stops19h 02m

Montreal Pierre Elliott Trudeau Intl

Sun 11/30

4:35 pm-9:20 pm

1 stop28h 45m

$426

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 12/15

3:00 pm-8:30 am

2 stops17h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 12/30

4:35 pm-3:55 pm

2 stops23h 20m

$447

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Wed 11/26

6:25 am-5:18 pm

2 stops10h 53m

Ottawa

Wed 12/3

9:45 am-2:17 pm

1 stop4h 32m

$473

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Wed 11/26

6:25 am-9:18 pm

2 stops14h 53m

Ottawa

Wed 12/3

9:45 am-2:17 pm

1 stop4h 32m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 29 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.

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

Find hourly flight availability from Greenville to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

A simple way to save on the total cost of your ticket is to fly from Greenville to Region of Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 52% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Greenville to Region of Ontario?

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 November 2, 2025.
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
8,001 reviews

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
8,001 reviews

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
American Airlines
7.2
Good
11,034 reviews
Delta
7.9
Good
8,001 reviews

Boarding

8.2

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

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 Air Canada, United Airlines, and Delta fly from Greenville to Region of Ontario in about 10h 53m. The time it takes to get you to your destination can typically vary by up to 4h. Greenville and Region of Ontario are separated by a distance of 798 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 2 airlines flying from Greenville to Ontario

Discover the top 2 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$335Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$362Average$685FlexibilityNo cancel feeOn-time69%

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