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$126+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — YYZ
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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 septiembre 17, 2025.

Round-trip from

$331
(Kiwi.com)

One-way from

$126
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$660
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 ($98 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 September 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 septiembre 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/138:03 pmGSP - YYZ
1 stop21h 41mMultiple Airlines
lun. 11/1712:50 pmYYZ - GSP
1 stop6h 33mMultiple Airlines
Deal found 9/14$331
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
lun. 11/178:03 pmGSP - YYZ
1 stop21h 53mMultiple Airlines
vie. 11/217:15 amYYZ - GSP
1 stop12h 08mMultiple Airlines
Deal found 9/16$342
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
jue. 10/98:03 pmGSP - YYZ
1 stop22h 33mMultiple Airlines
mar. 10/146:15 pmYYZ - GSP
2 stops44h 37mMultiple Airlines
Deal found 9/15$409
This American Airlines deal was found by Cheapflights users on 9/16. 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.
mié. 10/156:20 amGSP - YYZ
1 stop8h 24mAmerican Airlines
mar. 10/217:29 amYYZ - GSP
1 stop9h 53mAmerican Airlines
Deal found 9/16$489
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sáb. 10/113:38 pmGSP - YYZ
1 stop24h 58mMultiple Airlines
mié. 10/159:50 amYYZ - GSP
1 stop29h 02mMultiple Airlines
Deal found 9/16$491
This American Airlines deal was found by Cheapflights users on 9/17. 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.
mar. 11/187:38 amGSP - YYZ
1 stop8h 57mAmerican Airlines
mié. 11/1910:57 amYYZ - GSP
1 stop8h 11mAmerican Airlines
Deal found 9/17$492
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
vie. 10/318:03 pmGSP - YOW
1 stop21h 10mMultiple Airlines
vie. 11/73:55 pmYOW - GSP
2 stops51h 28mMultiple Airlines
Deal found 9/16$496
This Delta deal was found by Cheapflights users on 9/17. 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.
sáb. 11/15:16 pmGSP - YUL
1 stop6h 32mDelta
sáb. 11/89:28 amYUL - GSP
1 stop7h 44mDelta
Deal found 9/17$629
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
vie. 9/197:26 pmGSP - YOW
1 stop21h 31mMultiple Airlines
dom. 9/213:50 pmYOW - GSP
2 stops26h 56mMultiple Airlines
Deal found 9/15$639
This United Airlines deal was found by Cheapflights users on 9/17. 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.
sáb. 11/15:28 pmGSP - YUL
1 stop21h 32mUnited Airlines
sáb. 11/87:00 amYUL - GSP
2 stops13h 49mUnited Airlines
Deal found 9/17$646
This United Airlines deal was found by Cheapflights users on 9/17. 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.
vie. 10/310:05 amGSP - YUL
1 stop21h 44mUnited Airlines
lun. 10/68:00 pmYUL - GSP
1 stop23h 06mUnited Airlines
Deal found 9/17$659
This United Airlines deal was found by Cheapflights users on 9/17. 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.
jue. 10/96:05 amGSP - YUL
1 stop7h 04mUnited Airlines
mar. 10/146:15 amYUL - GSP
1 stop14h 56mUnited Airlines
Deal found 9/17$693

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 septiembre 17, 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

jue. 11/13

5:17 pm-2:40 pm

2 stops21h 23m

Toronto Pearson Intl

lun. 11/17

7:15 am-7:23 pm

1 stop12h 08m

$374

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

lun. 11/17

8:03 pm-7:02 pm

2 stops22h 59m

Toronto Pearson Intl

vie. 11/21

7:15 am-7:23 pm

1 stop12h 08m

$381

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

jue. 10/9

8:03 pm-6:36 pm

1 stop22h 33m

Toronto Pearson Intl

mar. 10/14

6:15 pm-2:52 pm

2 stops44h 37m

$409

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

mié. 10/15

6:20 am-2:44 pm

1 stop8h 24m

Toronto Pearson Intl

mar. 10/21

7:29 am-5:22 pm

1 stop9h 53m

$489

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

mar. 11/18

7:38 am-4:35 pm

1 stop8h 57m

Toronto Pearson Intl

mié. 11/19

10:57 am-7:08 pm

1 stop8h 11m

$492

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

lun. 10/6

8:03 pm-1:52 pm

1 stop17h 49m

Toronto Pearson Intl

mar. 10/7

5:00 pm-10:06 pm

1 stop5h 06m

$493

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

vie. 10/31

8:03 pm-5:13 pm

1 stop21h 10m

Ottawa

vie. 11/7

3:55 pm-7:23 pm

2 stops51h 28m

$496

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

mié. 10/15

6:20 am-2:44 pm

1 stop8h 24m

Toronto Pearson Intl

sáb. 10/18

7:15 am-5:22 pm

1 stop10h 07m

$499

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

vie. 10/10

8:03 pm-10:40 pm

1 stop26h 37m

Toronto Pearson Intl

mar. 10/14

3:35 pm-9:32 pm

1 stop5h 57m

$505

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

sáb. 11/1

5:28 pm-3:00 pm

1 stop21h 32m

Montreal Pierre Elliott Trudeau Intl

sáb. 11/8

7:00 am-8:49 pm

2 stops13h 49m

$646

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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, January is the cheapest month in which you can book a flight from Greenville to Region of Ontario (average of $243). Flying from Greenville to Region of Ontario in August is currently the most expensive (average of $348). 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 septiembre 17, 2025.

When flying from Greenville to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 septiembre 17, 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
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
3,095 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 American Airlines, Delta, and United Airlines fly from Greenville to Region of Ontario in about 6h 32m. The time it takes to get you to your destination can typically vary by up to 15h. 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, January is the cheapest month in which you can book a flight from Greenville to Region of Ontario (average of $243). Flying from Greenville to Region of Ontario in August is currently the most expensive (average of $348). 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.
Charlotte to Pearson Intl flights
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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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$311Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$335Average$450FlexibilityNo cancel feeOn-time71%

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