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$131+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — YYZ
nov. 9 — nov. 161
dom. 11/9
dom. 11/16
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 octubre 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$290
(Kiwi.com)

One-way from

$170
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$518
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 October 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 octubre 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
jue. 11/208:03 pmGSP - YYZ
1 stop18h 51mMultiple Airlines
dom. 11/308:15 pmYYZ - GSP
1 stop25h 05mMultiple Airlines
Deal found 10/8$290
This Kiwi.com deal was found by Cheapflights users on 10/9. 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. 11/208:03 pmGSP - YYZ
1 stop18h 51mMultiple Airlines
lun. 12/17:15 amYYZ - GSP
1 stop14h 05mMultiple Airlines
Deal found 10/9$291
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
jue. 11/208:03 pmGSP - YYZ
1 stop18h 51mMultiple Airlines
jue. 11/272:20 pmYYZ - GSP
1 stop6h 54mMultiple Airlines
Deal found 10/8$315
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
mar. 10/214:18 pmGSP - YYZ
2 stops21h 47mMultiple Airlines
lun. 10/277:15 amYYZ - GSP
1 stop12h 08mMultiple Airlines
Deal found 10/8$336
This Kiwi.com deal was found by Cheapflights users on 10/9. 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. 11/211:27 pmGSP - YYZ
1 stop22h 16mMultiple Airlines
dom. 11/308:00 pmYYZ - GSP
1 stop25h 20mMultiple Airlines
Deal found 10/9$337
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
lun. 11/178:03 pmGSP - YYZ
1 stop18h 02mMultiple Airlines
vie. 11/2112:50 pmYYZ - GSP
1 stop6h 33mMultiple Airlines
Deal found 10/8$343
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
mar. 10/214:18 pmGSP - YYZ
2 stops21h 47mMultiple Airlines
mié. 10/297:35 amYYZ - GSP
1 stop26h 18mMultiple Airlines
Deal found 10/8$365
This American Airlines deal was found by Cheapflights users on 10/8. 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.
mar. 11/116:12 amGSP - YYZ
1 stop9h 52mAmerican Airlines
sáb. 11/1511:32 amYYZ - GSP
1 stop8h 17mAmerican Airlines
Deal found 10/8$372
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
lun. 10/208:03 pmGSP - YYZ
1 stop20h 33mMultiple Airlines
lun. 10/277:15 amYYZ - GSP
1 stop12h 08mMultiple Airlines
Deal found 10/8$374
This Air Canada deal was found by Cheapflights users on 10/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/269:10 amGSP - YOW
2 stops13h 58mAir Canada
mié. 12/33:10 pmYOW - GSP
1 stop8h 49mAir Canada
Deal found 10/8$473
This American Airlines deal was found by Cheapflights users on 10/9. 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. 11/266:49 pmGSP - YOW
2 stops23h 35mAmerican Airlines
mié. 12/310:00 amYOW - GSP
2 stops12h 48mAmerican Airlines
Deal found 10/9$506
This United Airlines deal was found by Cheapflights users on 10/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:00 amGSP - YOW
1 stop7h 32mUnited Airlines
mié. 12/35:55 pmYOW - GSP
1 stop6h 04mUnited Airlines
Deal found 10/8$535

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 octubre 10, 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. 11/20

8:03 pm-2:54 pm

1 stop18h 51m

Toronto Pearson Intl

dom. 11/30

8:15 pm-9:20 pm

1 stop25h 05m

$290

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

jue. 11/20

8:03 pm-2:54 pm

1 stop18h 51m

Toronto Pearson Intl

jue. 11/27

2:20 pm-9:14 pm

1 stop6h 54m

$315

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

mar. 10/21

4:18 pm-2:05 pm

2 stops21h 47m

Toronto Pearson Intl

lun. 10/27

7:15 am-7:23 pm

1 stop12h 08m

$336

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

lun. 11/17

8:03 pm-2:05 pm

1 stop18h 02m

Toronto Pearson Intl

vie. 11/21

12:50 pm-7:23 pm

1 stop6h 33m

$343

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

jue. 4/2

6:46 am-1:45 pm

1 stop6h 59m

Ottawa

dom. 4/5

10:35 am-9:11 pm

1 stop10h 36m

$363

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

mar. 11/11

6:12 am-4:04 pm

1 stop9h 52m

Toronto Pearson Intl

sáb. 11/15

11:32 am-7:49 pm

1 stop8h 17m

$372

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

lun. 10/20

8:51 pm-11:52 pm

2 stops27h 01m

Toronto Pearson Intl

lun. 10/27

7:15 am-7:23 pm

1 stop12h 08m

$378

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

lun. 10/20

8:03 pm-4:36 pm

1 stop20h 33m

Toronto Pearson Intl

mié. 10/29

7:35 am-9:53 am

1 stop26h 18m

$403

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

mié. 11/26

9:10 am-11:08 pm

2 stops13h 58m

Ottawa

mié. 12/3

3:10 pm-11:59 pm

1 stop8h 49m

$473

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

mié. 11/26

6:49 pm-6:24 pm

2 stops23h 35m

Ottawa

mié. 12/3

10:00 am-10:48 pm

2 stops12h 48m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 24 results
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2
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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 octubre 10, 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.

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 octubre 10, 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
7,970 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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
8,966 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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
11,043 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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
3,122 reviews
Delta
8.0
Very good
7,970 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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 United Airlines, Air Canada, and Delta 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 7h 26m. 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 octubre 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$311Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$335Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$362Average$609FlexibilityNo cancel feeOn-time69%

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