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$286+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — YYZ
Mar 19 — Mar 261
Wed 3/19
Wed 3/26
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 March 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$292
(Mytrip)

One-way from

$286
(American Airlines)

Popular in

January

Cheapest in

February

Average price

$387
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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High demand for flights, 11% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 14, 2025.

This Mytrip deal was found by Cheapflights users on 3/12. 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 6/99:23 pmGSP - YYZ
1 stop16h 42mMultiple Airlines
Fri 6/139:30 amYYZ - GSP
1 stop11h 03mMultiple Airlines
Deal found 3/12$292
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/176:50 amGSP - YYZ
1 stop5h 25mUnited Airlines
Sun 4/205:30 pmYYZ - GSP
1 stop5h 07mUnited Airlines
Deal found 3/12$355
This Delta deal was found by Cheapflights users on 3/12. 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.
Fri 6/135:45 amGSP - YYZ
1 stop6h 30mDelta
Wed 6/187:59 amYYZ - GSP
1 stop6h 18mDelta
Deal found 3/12$365
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Wed 3/2610:26 amGSP - YUL
1 stop7h 29mUnited Airlines
Mon 3/316:00 amYUL - GSP
1 stop5h 13mUnited Airlines
Deal found 3/12$370
This American Airlines deal was found by Cheapflights users on 3/12. 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 3/267:30 amGSP - YUL
2 stops9h 29mAmerican Airlines
Mon 3/315:40 pmYUL - GSP
1 stop5h 09mAmerican Airlines
Deal found 3/12$380
This Mytrip deal was found by Cheapflights users on 3/12. 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 6/26:16 pmGSP - YUL
2 stops30h 21mMultiple Airlines
Sun 6/86:45 amYUL - GSP
2 stops14h 42mMultiple Airlines
Deal found 3/12$436
This Air Canada deal was found by Cheapflights users on 3/12. 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.
Wed 3/1910:26 amGSP - YYZ
1 stop5h 50mAir Canada
Sat 3/293:00 pmYYZ - GSP
1 stop6h 21mAir Canada
Deal found 3/12$451
This American Airlines deal was found by Cheapflights users on 3/11. 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 7/2410:30 amGSP - YYZ
1 stop4h 14mAmerican Airlines
Wed 7/306:00 amYYZ - GSP
1 stop9h 24mAmerican Airlines
Deal found 3/11$532
This Air Canada deal was found by Cheapflights users on 3/12. 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 6/127:46 pmGSP - YUL
2 stops14h 04mAir Canada
Mon 6/166:00 amYUL - GSP
1 stop8h 17mAir Canada
Deal found 3/12$567
This Delta deal was found by Cheapflights users on 3/12. 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.
Mon 6/26:30 amGSP - YUL
1 stop5h 15mDelta
Sun 6/86:00 amYUL - GSP
2 stops11h 49mDelta
Deal found 3/12$614
This Priceline deal was found by Cheapflights users on 3/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:00 pmGSP - YYZ
1 stop8h 07mWestJet
Sun 7/133:59 pmYYZ - GSP
1 stop6h 00mWestJet
Deal found 3/12$660

Find flights from Greenville to Ontario within your budget

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 March 14, 2025.

Fly from

Greenville

Fly to

Ontario

Route

Depart

Return

Price

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Mon 6/9

9:23 pm-2:05 pm

1 stop16h 42m

Toronto Pearson Intl

Fri 6/13

9:30 am-8:33 pm

1 stop11h 03m

$292

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Thu 4/17

6:50 am-12:15 pm

1 stop5h 25m

Toronto Pearson Intl

Sun 4/20

5:30 pm-10:37 pm

1 stop5h 07m

$355

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Fri 6/13

5:45 am-12:15 pm

1 stop6h 30m

Toronto Pearson Intl

Wed 6/18

7:59 am-2:17 pm

1 stop6h 18m

$365

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Wed 3/26

10:26 am-5:55 pm

1 stop7h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 3/31

6:00 am-11:13 am

1 stop5h 13m

$370

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Wed 3/26

7:30 am-4:59 pm

2 stops9h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 3/31

5:40 pm-10:49 pm

1 stop5h 09m

$380

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 6/2

6:16 pm-12:37 am

2 stops30h 21m

Montreal Pierre Elliott Trudeau Intl

Sun 6/8

6:45 am-9:27 pm

2 stops14h 42m

$436

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Mon 3/24

10:26 am-2:18 pm

1 stop3h 52m

Toronto Pearson Intl

Tue 3/25

2:45 pm-6:51 pm

1 stop4h 06m

$451

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Thu 7/24

10:30 am-2:44 pm

1 stop4h 14m

Toronto Pearson Intl

Wed 7/30

6:00 am-3:24 pm

1 stop9h 24m

$532

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 6/2

6:30 am-11:45 am

1 stop5h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 6/8

6:00 am-5:49 pm

2 stops11h 49m

$614

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Tue 7/8

3:00 pm-11:07 pm

1 stop8h 07m

Toronto Pearson Intl

Sun 7/13

3:59 pm-9:59 pm

1 stop6h 00m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 13 results
1
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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.

Travel insights for flights from Greenville to Ontario

Get recent, data-driven insights about flights from Greenville to Ontario including ideal travel times, pricing trends, and more.

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 July is currently the most expensive (average of $359). 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 March 14, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 March 14, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Greenville to Ontario by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,623 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet
7.2
Good
2,778 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada
7.0
Good
8,881 reviews
Delta
8.0
Very good
7,944 reviews

Entertainment

7.9

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Greenville to Region of Ontario one-way?

    $286 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $305 and $310, respectively.

  • 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 July is currently the most expensive (average of $359). 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.

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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 March 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$286Average$424FlexibilityNo cancel feeOn-time71%
DeltaCheapest$321Average$427FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$469Average$574FlexibilityNo cancel feeOn-time60%
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