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

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

What airlines fly to Greenville?

American Airlines, Delta and Spirit Airlines are the top three most popular airlines that fly to Greenville from Ontario according to our data. American Airlines is the first choice among our users, with 73% of people opting to fly with this airline when traveling to Greenville. Keep in mind that there are 7 different airlines that fly to Greenville on a routine basis, so you have a few additional options to choose from.

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

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

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

As of August 2025, there are 2 operators available to choose from for flights from Ontario Airport to Greenville Airport.

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

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 Ontario Airport to Greenville Airport.

What documentation or ID do you need to fly to Greenville Airport?

The necessary travel and health documents for your Greenville Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$179 Cheap Flights from Ontario to Greenville in 2025

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Find the cheapest flights from Ontario to Greenville

Round-trip

One-way

Last minute

Cheap round-trip flights

10:00 pm - 8:59 amONT-GSP

7h 59m1 stop

6:35 am - 10:26 amGSP-ONT

6h 51m1 stop

$317Delta

Find Deal

Tue, Oct 14 - Tue, Oct 21

10:30 pm - 9:27 amONT-GSP

7h 57m1 stop

5:45 am - 11:38 amGSP-ONT

8h 53m1 stop

$381Delta

Find Deal

Thu, Jan 22 - Sun, Jan 25

10:57 am - 12:15 amONT-GSP

10h 18m2 stops

6:04 pm - 10:02 pmGSP-ONT

6h 58m1 stop

$386American Airlines

Find Deal

Thu, Jan 22 - Sun, Jan 25

6:41 am - 7:57 pmONT-GSP

10h 16m2 stops

7:15 am - 2:57 pmGSP-ONT

10h 42m2 stops

$391American Airlines

Find Deal

Thu, Jan 22 - Sun, Jan 25

11:55 am - 11:52 pmONT-GSP

8h 57m1 stop

6:13 pm - 10:23 pmGSP-ONT

7h 10m1 stop

$402Delta

Find Deal

Thu, Sep 18 - Wed, Sep 24

6:00 am - 3:42 pmONT-GSP

6h 42m1 stop

3:55 pm - 10:30 pmGSP-ONT

9h 35m1 stop

$426United Airlines

Find Deal

Sat, Oct 4 - Wed, Oct 8

8:25 pm - 9:55 amONT-GSP

10h 30m2 stops

10:20 am - 7:40 pmGSP-ONT

12h 20m2 stops

$457Southwest

Find Deal

Fri, Nov 21 - Mon, Nov 24

7:00 am - 11:00 pmONT-GSP

13h 00m2 stops

5:00 pm - 9:24 pmGSP-ONT

7h 24m1 stop

$477United Airlines

Find Deal

Tue, Sep 16 - Fri, Sep 26

7:40 pm - 10:56 amONT-GSP

12h 16m2 stops

7:36 am - 6:47 pmGSP-ONT

14h 11m2 stops

$572Alaska Airlines

Find Deal

Fri, Sep 19 - Wed, Sep 24

6:00 am - 9:59 pmONT-GSP

12h 59m2 stops

7:20 am - 6:33 pmGSP-ONT

14h 13m2 stops

$647Alaska Airlines

Find Deal

Sat, Oct 4 - Wed, Oct 8

Delta flights from Ontario to Greenville

Our best Delta deals on Ontario to Greenville flight tickets

Delta

Oct 14

ONT10:00 pmOntario

7h 59m

1 stop

GSP8:59 amGreenville

Oct 21

GSP6:35 amGreenville

6h 51m

1 stop

ONT10:26 amOntario

$317

Find similar

Delta

Jan 22

ONT10:30 pmOntario

7h 57m

1 stop

GSP9:27 amGreenville

Jan 25

GSP5:45 amGreenville

8h 53m

1 stop

ONT11:38 amOntario

$381

Find similar

Delta

Sep 18

ONT11:55 amOntario

8h 57m

1 stop

GSP11:52 pmGreenville

Sep 24

GSP6:13 pmGreenville

7h 10m

1 stop

ONT10:23 pmOntario

$402

Find similar

United Airlines flights from Ontario to Greenville

Our best United Airlines deals on Ontario to Greenville flight tickets

United Airlines

Oct 4

ONT6:00 amOntario

6h 42m

1 stop

GSP3:42 pmGreenville

Oct 8

GSP3:55 pmGreenville

9h 35m

1 stop

ONT10:30 pmOntario

$426

Find similar

United Airlines

Sep 16

ONT7:00 amOntario

13h 00m

2 stops

GSP11:00 pmGreenville

Sep 26

GSP5:00 pmGreenville

7h 24m

1 stop

ONT9:24 pmOntario

$477

Find similar

United Airlines

Sep 16

ONT7:00 amOntario

6h 53m

1 stop

GSP4:53 pmGreenville

Sep 26

GSP5:00 pmGreenville

7h 24m

1 stop

ONT9:24 pmOntario

$481

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Tue 10/14

10:00 pm-8:59 am

1 stop7h 59m

Greenville

Tue 10/21

6:35 am-10:26 am

1 stop6h 51m

$317

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Thu 1/22

10:30 pm-9:27 am

1 stop7h 57m

Greenville

Sun 1/25

5:45 am-11:38 am

1 stop8h 53m

$381

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Thu 1/22

10:57 am-12:15 am

2 stops10h 18m

Greenville

Sun 1/25

6:04 pm-10:02 pm

1 stop6h 58m

$386

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Thu 1/22

6:41 am-7:57 pm

2 stops10h 16m

Greenville

Sun 1/25

7:15 am-2:57 pm

2 stops10h 42m

$391

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Thu 9/18

11:55 am-11:52 pm

1 stop8h 57m

Greenville

Wed 9/24

6:13 pm-10:23 pm

1 stop7h 10m

$402

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sat 10/4

6:00 am-3:42 pm

1 stop6h 42m

Greenville

Wed 10/8

3:55 pm-10:30 pm

1 stop9h 35m

$426

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Fri 11/21

8:25 pm-9:55 am

2 stops10h 30m

Greenville

Mon 11/24

10:20 am-7:40 pm

2 stops12h 20m

$457

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Tue 9/16

7:00 am-11:00 pm

2 stops13h 00m

Greenville

Fri 9/26

5:00 pm-9:24 pm

1 stop7h 24m

$477

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Fri 9/19

7:40 pm-10:56 am

2 stops12h 16m

Greenville

Wed 9/24

7:36 am-6:47 pm

2 stops14h 11m

$572

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sat 10/4

6:00 am-9:59 pm

2 stops12h 59m

Greenville

Wed 10/8

7:20 am-6:33 pm

2 stops14h 13m

$647

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 Ontario to Greenville

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 Greenville?

The month of September is another great option to travel to Greenville, with average flight prices from Ontario averaging around $332.

What is the cheapest day to depart on your flight to Greenville?

According to our data, Thursday is the cheapest day to fly to Greenville from Ontario. The lowest ticket price found for a Thursday departure recently was $122. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $294. These prices are subject to change though, so be sure to set up a Price Alert for flights to Greenville.

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

Our most recent data shows that the best time of day to fly to Greenville is in the morning. Flights from Ontario to Greenville during this time can be as low as $212. Flights to Greenville are more costly in the evening, with an average ticket price of $439. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How have Ontario to Greenville flight prices changed over time?

When to book flights from Ontario to Greenville

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Greenville according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Greenville (ONT to GSP) flight deals and tips

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

Best Price Found	$179
Fastest flight time	6h 19m
Direct flights	None
Airports in Greenville	1 airport

The best one-way flight to Greenville from Ontario in the past 72 hours is $179. The best round-trip flight deal from Ontario to Greenville found on momondo in the last 72 hours is $317.

The fastest flight from Ontario to Greenville takes 6h 19m

There are no direct flights from Ontario to Greenville. Popular non-direct route for this connection is Ontario Airport - Greenville Airport.

There is 1 airport near Greenville: Greenville (GSP)

Search flight deals

How far is Ontario to Greenville by plane?
A flight from Ontario to Greenville will travel around 1997.5 mi. In terms of flight time, this usually takes a little over 6h 19m.
When did momondo last update prices for flights from Ontario Airport to Greenville Airport?
Prices for flights from Ontario Airport to Greenville Airport were last updated today.
How many operators does momondo search for flights from Ontario Airport to Greenville Airport?
As of August 2025, there are 2 operators available to choose from for flights from Ontario Airport to Greenville Airport.
How old do you have to be to fly from Ontario Airport to Greenville Airport?
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 Ontario Airport to Greenville Airport.
What documentation or ID do you need to fly to Greenville Airport?
The necessary travel and health documents for your Greenville Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Greenville?
momondo data reveals that the most frequently booked airline on the route from Ontario to Greenville is American Airlines, representing 72% of all bookings. The subsequent popular airline is Delta at 28%.

Best airlines flying from Ontario to Greenville

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $302	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights
Delta	PriceFrom $395	Free Cancellation	Rating 8.0 7,981 reviews		Search Delta flights

Anderson

Simpsonville

Greenwood

Seneca

Greer

Duncan

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Greenville. momondo saves you time and could save you money on your trip.

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

All flight searches from Ontario to Greenville on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Ontario and Greenville 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 Ontario to Greenville right now. Can momondo alert me if prices change?

Price alerts on flights to Greenville from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.