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

American Airlines, WestJet, and Delta 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 52% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 5 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 December 2025, there are 4 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.

$129 Cheap Flights from Greenville to Ontario in 2025/26

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Find the cheapest flights from Greenville to Ontario

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:49 am - 4:30 pm

GSP

YOW

4h 41m1 stop

5:55 pm - 11:48 pm

YOW

GSP

5h 53m1 stop

$363United Airlines

Thu, Jan 8 - Sun, Jan 11

4:39 pm - 12:38 am

GSP

YUL

31h 59m2 stops

3:55 pm - 9:07 pm

YUL

GSP

29h 12m1 stop

$370Multiple Airlines

Mon, Feb 2 - Wed, Feb 11

11:49 am - 4:30 pm

GSP

YOW

4h 41m1 stop

6:00 am - 11:08 am

YOW

GSP

5h 08m1 stop

$374United Airlines

Thu, Jan 8 - Sun, Jan 11

7:16 am - 4:35 pm

GSP

YYZ

9h 19m1 stop

10:59 am - 9:05 pm

YYZ

GSP

10h 06m1 stop

$405American Airlines

Sat, Jan 31 - Sat, Feb 7

7:16 am - 4:35 pm

GSP

YYZ

9h 19m1 stop

10:59 am - 10:16 pm

YYZ

GSP

11h 17m1 stop

$422American Airlines

Wed, Jan 7 - Sun, Jan 11

6:35 am - 4:23 pm

GSP

YOW

9h 48m2 stops

5:55 pm - 11:48 pm

YOW

GSP

5h 53m1 stop

$447Air Canada

Thu, Jan 8 - Sun, Jan 11

10:00 am - 5:41 pm

GSP

YOW

7h 41m2 stops

5:55 pm - 11:48 pm

YOW

GSP

5h 53m1 stop

$458Air Canada

Thu, Jan 8 - Sun, Jan 11

11:30 am - 8:44 am

GSP

YUL

21h 14m1 stop

2:15 pm - 10:44 pm

YUL

GSP

8h 29m1 stop

$483Delta

Mon, Feb 2 - Wed, Feb 11

6:50 am - 6:37 pm

GSP

YUL

11h 47m2 stops

9:34 am - 9:52 pm

YUL

GSP

12h 18m2 stops

$567Delta

Fri, Jan 30 - Fri, Feb 6

5:40 am - 9:53 pm

GSP

YYZ

16h 13m2 stops

8:00 am - 2:03 pm

YYZ

GSP

30h 03m2 stops

$859WestJet

Sat, Jan 31 - Sat, Feb 7

United Airlines flights from Greenville to Region of Ontario

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

United Airlines

Jan 8

GSP11:49 amGreenville

4h 41m

1 stop

YOW4:30 pmOttawa

Jan 11

YOW5:55 pmOttawa

5h 53m

1 stop

GSP11:48 pmGreenville

$363

Find similar

United Airlines

Jan 8

GSP11:49 amGreenville

4h 41m

1 stop

YOW4:30 pmOttawa

Jan 11

YOW6:00 amOttawa

5h 08m

1 stop

GSP11:08 amGreenville

$374

Find similar

United Airlines

May 15

GSP7:42 pmGreenville

17h 28m

2 stops

YOW1:10 pmOttawa

May 18

YOW7:37 pmOttawa

14h 21m

1 stop

GSP9:58 amGreenville

$450

Find similar

Delta flights from Greenville to Region of Ontario

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

Delta

Feb 2

GSP11:30 amGreenville

21h 14m

1 stop

YUL8:44 amMontreal Pierre Elliott Trudeau Intl

Feb 11

YUL2:15 pmMontreal Pierre Elliott Trudeau Intl

8h 29m

1 stop

GSP10:44 pmGreenville

$483

Find similar

Delta

Jan 30

GSP6:50 amGreenville

11h 47m

2 stops

YUL6:37 pmMontreal Pierre Elliott Trudeau Intl

Feb 6

YUL9:34 amMontreal Pierre Elliott Trudeau Intl

12h 18m

2 stops

GSP9:52 pmGreenville

$567

Find similar

Delta

Jan 24

GSP6:50 amGreenville

4h 55m

1 stop

YUL11:45 amMontreal Pierre Elliott Trudeau Intl

Jan 31

YUL9:34 amMontreal Pierre Elliott Trudeau Intl

8h 40m

1 stop

GSP6:14 pmGreenville

$602

Find similar

Fly from

Fly to

Route

Depart

Return

Price

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/8

11:49 am-4:30 pm

1 stop4h 41m

Ottawa

Sun 1/11

5:55 pm-11:48 pm

1 stop5h 53m

$363

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 2/2

4:39 pm-12:38 am

2 stops31h 59m

Montreal Pierre Elliott Trudeau Intl

Wed 2/11

3:55 pm-9:07 pm

1 stop29h 12m

$370

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/8

11:49 am-4:30 pm

1 stop4h 41m

Ottawa

Sun 1/11

6:00 am-11:08 am

1 stop5h 08m

$374

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Sat 1/31

7:16 am-4:35 pm

1 stop9h 19m

Toronto Pearson Intl

Sat 2/7

10:59 am-9:05 pm

1 stop10h 06m

$405

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Wed 1/7

7:16 am-4:35 pm

1 stop9h 19m

Toronto Pearson Intl

Sun 1/11

10:59 am-10:16 pm

1 stop11h 17m

$422

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/8

6:35 am-4:23 pm

2 stops9h 48m

Ottawa

Sun 1/11

5:55 pm-11:48 pm

1 stop5h 53m

$447

GreenvilleOttawa

GSP - YOW

GSPYOW

Greenville

Thu 1/8

10:00 am-5:41 pm

2 stops7h 41m

Ottawa

Sun 1/11

5:55 pm-11:48 pm

1 stop5h 53m

$458

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Mon 2/2

11:30 am-8:44 am

1 stop21h 14m

Montreal Pierre Elliott Trudeau Intl

Wed 2/11

2:15 pm-10:44 pm

1 stop8h 29m

$483

GreenvilleMontreal

GSP - YUL

GSPYUL

Greenville

Fri 1/30

6:50 am-6:37 pm

2 stops11h 47m

Montreal Pierre Elliott Trudeau Intl

Fri 2/6

9:34 am-9:52 pm

2 stops12h 18m

$567

GreenvilleToronto

GSP - YYZ

GSPYYZ

Greenville

Sat 1/31

5:40 am-9:53 pm

2 stops16h 13m

Toronto Pearson Intl

Sat 2/7

8:00 am-2:03 pm

2 stops30h 03m

$859

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 February is, on average, the cheapest month to fly to Region of Ontario from Greenville, with most prices found around $174. If you aren’t able to travel during the month of February, then book flights to Region of Ontario from Greenville during March instead. Flights to Region of Ontario in March, while not as cheap as those in February, still average around $437.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Thursday is the cheapest day to fly to Region of Ontario from Greenville. The lowest ticket price found for a Thursday departure recently was $374. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Greenville to Region of Ontario on a Wednesday will generally be more expensive and average around $509. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Region of Ontario?

According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Greenville to Region of Ontario in the afternoon for as low as $363. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $466.

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 55m
Direct flights	None

The fastest flight from Greenville to Region of Ontario takes 4h 55m

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

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 December 2025, there are 4 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
Delta	PriceFrom $312	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
American Airlines	PriceFrom $341	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
United Airlines	PriceFrom $362	Free Cancellation	Rating 7.4 9,091 reviews	Search United 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.