What is the cheapest airline that flies from Greenville to Ontario?

American Airlines, WestJet, and United Airlines are the most popular carriers operating from Greenville to Ontario

What airlines fly to Region of Ontario?

American Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to Region of Ontario from Greenville according to our data. American Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 4 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Greenville Airport to Ontario?

Prices for flights from Greenville Airport to Ontario were last updated today.

How many operators does momondo search for flights from Greenville Airport to Ontario?

As of May 2026, there are 3 operators available to choose from for flights from Greenville Airport to Ontario.

How old do you have to be to fly from Greenville Airport to Ontario?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greenville Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$157 Cheap Flights from Greenville to Ontario in 2026

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Find the cheapest flights from Greenville to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:18 am - 9:55 pm

GSP

YYZ

13h 37m

2 stops

1:30 pm - 7:57 am

YYZ

GSP

18h 27m

1 stop

$401Multiple Airlines

Thu, Aug 6 - Sat, Aug 8

9:43 pm - 2:05 pm

GSP

YYZ

16h 22m

1 stop

1:30 pm - 9:55 am

YYZ

GSP

20h 25m

1 stop

$405Multiple Airlines

Fri, Jun 12 - Sat, Jun 20

6:30 am - 10:05 pm

GSP

YOW

15h 35m

1 stop

6:05 am - 10:37 am

YOW

GSP

4h 32m

1 stop

$414United Airlines

Sat, May 30 - Sat, Jun 6

7:40 pm - 11:54 pm

GSP

YOW

4h 14m

1 stop

5:50 pm - 11:29 pm

YOW

GSP

5h 39m

1 stop

$420United Airlines

Fri, Jun 5 - Mon, Jun 8

6:00 am - 2:35 pm

GSP

YYZ

8h 35m

1 stop

11:01 am - 9:15 pm

YYZ

GSP

10h 14m

1 stop

$475American Airlines

Wed, Jun 17 - Wed, Jun 24

7:20 am - 5:35 pm

GSP

YOW

10h 15m

2 stops

6:55 am - 4:17 pm

YOW

GSP

9h 22m

2 stops

$537Delta

Sat, May 30 - Sat, Jun 6

7:49 pm - 9:11 am

GSP

YOW

13h 22m

1 stop

9:45 pm - 2:20 pm

YOW

GSP

16h 35m

2 stops

$538Air Canada

Thu, Jun 4 - Mon, Jun 8

6:14 pm - 8:39 am

GSP

YUL

14h 25m

1 stop

9:30 am - 10:17 am

YUL

GSP

24h 47m

1 stop

$551Delta

Thu, May 28 - Sat, May 30

7:40 pm - 9:15 am

GSP

YOW

13h 35m

2 stops

2:00 pm - 11:29 pm

YOW

GSP

9h 29m

2 stops

$551Air Canada

Thu, Jun 4 - Mon, Jun 8

5:47 pm - 9:48 am

GSP

YUL

16h 01m

1 stop

10:30 am - 10:39 pm

YUL

GSP

12h 09m

1 stop

$626American Airlines

Wed, Jul 1 - Wed, Jul 8

WestJet flights from Greenville to Region of Ontario

Our best WestJet deals on Greenville to Region of Ontario flight tickets

WestJet

May 26

GSP6:35 pmGreenville

14h 24m

1 stop

YYZ8:59 amToronto Pearson Intl

May 29

YYZ1:34 pmToronto Pearson Intl

5h 19m

1 stop

GSP6:53 pmGreenville

$655

WestJet

May 29

GSP6:45 amGreenville

4h 50m

1 stop

YUL11:35 amMontreal Pierre Elliott Trudeau Intl

May 31

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

27h 39m

1 stop

GSP10:39 amGreenville

$676

WestJet

May 29

GSP5:05 pmGreenville

6h 52m

1 stop

YUL11:57 pmMontreal Pierre Elliott Trudeau Intl

May 31

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

16h 43m

1 stop

GSP11:43 pmGreenville

$678

American Airlines flights from Greenville to Region of Ontario

Our best American Airlines deals on Greenville to Region of Ontario flight tickets

American Airlines

Jun 17

GSP6:00 amGreenville

8h 35m

1 stop

YYZ2:35 pmToronto Pearson Intl

Jun 24

YYZ11:01 amToronto Pearson Intl

10h 14m

1 stop

GSP9:15 pmGreenville

$475

American Airlines

May 30

GSP7:15 amGreenville

9h 33m

1 stop

YYZ4:48 pmToronto Pearson Intl

Jun 6

YYZ7:22 amToronto Pearson Intl

8h 21m

1 stop

GSP3:43 pmGreenville

$484

American Airlines

Jun 25

GSP6:14 amGreenville

8h 21m

1 stop

YYZ2:35 pmToronto Pearson Intl

Jun 30

YYZ11:01 amToronto Pearson Intl

10h 14m

1 stop

GSP9:15 pmGreenville

$534

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Thu 8/6

8:18 am-9:55 pm

2 stops13h 37m

Toronto Pearson Intl

Sat 8/8

1:30 pm-7:57 am

1 stop18h 27m

$401

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Fri 6/12

9:43 pm-2:05 pm

1 stop16h 22m

Toronto Pearson Intl

Sat 6/20

1:30 pm-9:55 am

1 stop20h 25m

$405

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Sat 5/30

6:30 am-10:05 pm

1 stop15h 35m

Ottawa

Sat 6/6

6:05 am-10:37 am

1 stop4h 32m

$414

Quickest round-trip

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Fri 6/5

7:40 pm-11:54 pm

1 stop4h 14m

Ottawa

Mon 6/8

5:50 pm-11:29 pm

1 stop5h 39m

$420

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Wed 6/17

6:00 am-2:35 pm

1 stop8h 35m

Toronto Pearson Intl

Wed 6/24

11:01 am-9:15 pm

1 stop10h 14m

$475

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Sat 5/30

7:20 am-5:35 pm

2 stops10h 15m

Ottawa

Sat 6/6

6:55 am-4:17 pm

2 stops9h 22m

$537

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 6/4

7:49 pm-9:11 am

1 stop13h 22m

Ottawa

Mon 6/8

9:45 pm-2:20 pm

2 stops16h 35m

$538

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Thu 5/28

6:14 pm-8:39 am

1 stop14h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 5/30

9:30 am-10:17 am

1 stop24h 47m

$551

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 6/4

7:40 pm-9:15 am

2 stops13h 35m

Ottawa

Mon 6/8

2:00 pm-11:29 pm

2 stops9h 29m

$551

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Wed 7/1

5:47 pm-9:48 am

1 stop16h 01m

Montreal Pierre Elliott Trudeau Intl

Wed 7/8

10:30 am-10:39 pm

1 stop12h 09m

$626

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Greenville to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Region of Ontario?

The month of October is, on average, the cheapest month to fly to Region of Ontario from Greenville, with most prices found around $0. If you aren’t able to travel during the month of October, then book flights to Region of Ontario from Greenville during May instead. Flights to Region of Ontario in May, while not as cheap as those in October, still average around $160.

Cheap Greenville to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Greenville to Region of Ontario

Fastest flight time	4h 38m
Direct flights	None

The fastest flight from Greenville to Region of Ontario takes 4h 38m

There are no direct flights from Greenville to Region of Ontario. There are no popular flight routes from Greenville to Region of Ontario.

Search flight deals

Frequently asked questions about flying from Greenville to Ontario

When did momondo last update prices for flights from Greenville Airport to Ontario?
Prices for flights from Greenville Airport to Ontario were last updated today.
How many operators does momondo search for flights from Greenville Airport to Ontario?
As of May 2026, there are 3 operators available to choose from for flights from Greenville Airport to Ontario.
How old do you have to be to fly from Greenville Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greenville Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Greenville to Region of Ontario

Compare and see reviews for airlines that fly from Greenville to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $348	Free Cancellation	Rating 7.4 9,684 reviews		Search United Airlines flights
American Airlines	PriceFrom $439	Free Cancellation	Rating 7.1 11,666 reviews		Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Greenville to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Greenville to Ontario for you.

Can I find flights from Greenville to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Greenville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Greenville to Ontario?

momondo helps you find the best flight between Greenville and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Greenville to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Greenville to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.