Cheap Flight Tickets from Greenville (GSP) to Ontario (ONT), Starting at $787

Good to Know: Cheapest and Fastest GSP - ONT Flights

Useful information for finding best airline tickets from Greenville Spartanburg International to Ontario International on your next trip.

Cheapest Round Trip Flight

$787

AS Alaska Airlines • 2 stops • 21h 54m

Jun 25 – Jun 28

The cheapest round trip flight from Greenville to Ontario (GSP-ONT-GSP) is currently $787

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Fastest Flight

21h 54m

The fastest nonstop flight from Greenville to Ontario (GSP-ONT) takes 21h 54m

Top Airlines Flying from Greenville to Ontario

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Greenville (GSP) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Greenville to Ontario. Ideal for travelers with confirmed return itineraries.

Jun 25 - Jun 28, Economy
AS
Greenville → Ontario
21h 54m
1:37 PM - 11:51 PM • 2 stops
AS
Greenville → Ontario
24h 6m
6:02 AM - 11:48 PM • 2 stops
$787
Alaska Airlines

Fly from Greenville to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Greenville to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Greenville to Ontario Flights

What are the airports in Greenville?
GSP
What’s the most popular airline flying from GSP to ONT?
The most popular airline flying from Greenville to Ontario are
Can I fly from GSP to ONT non-stop?
NO
Which airlines fly nonstop between Greenville and Ontario?
The non-stop flights between Greenville and Ontario are .
What’s the earliest departure time from GSP to ONT Airport?
The earliest flight leaves GSP at 1:37 pm and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Greenville to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from GSP to ONT?
Read the fare rules of the Greenville to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Greenville and Ontario?
operate flights between Greenville and Ontario
How long does a flight from Greenville to Ontario take?
It takes approximately 5 hour to fly non-stop from GSP to ONT, which is 2009.97 miles by air.
Which airlines provide the cheapest flights from Greenville (GSP) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from GSP were found on AS : USD 787
Do I need a passport to fly between GSP and ONT?
No
What’s the latest departure time from GSP to ONT ?
The last flight leaves GSP at 1:37 pm

Greenville (GSP) to Ontario (ONT): Airport Information

Origin Airport Greenville Spartanburg International , Greenville, US
Destination Airport Ontario International , Ontario, US
Distance 2010 miles

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