Cheap flights from Greenville to Ontario from $351
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Greenville to Ontario departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Greenville to 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
What is the cheapest month to fly to Ontario?
In general, February is the cheapest month to fly from Greenville to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $388. If you aren’t able to travel during the month of February, then book flights to Ontario from Greenville during March instead. Flights to Ontario in March, while not as cheap as those in February, still average around $388.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $428. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Greenville to Ontario for around $578.
What is the cheapest time of day to depart on your flight to Ontario?
In the evening is the cheapest time of day to fly from Greenville to Ontario when you can find flight prices for as low as $439. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $610 on average. Flights to Ontario from Greenville at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Ontario?
You are more likely to see cheaper flights to Ontario from Greenville when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $502 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Greenville for as low as $379 on momondo.
What is the cheapest airline that flies from Greenville to Ontario?
United Airlines and American Airlines are the most popular carriers operating from Greenville to Ontario
What airlines fly to Ontario?
American Airlines, Spirit Airlines and Delta are the top three most popular airlines that fly to Ontario from Greenville according to our data. American Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
When to book flights from Greenville to Ontario
Cheap Greenville to Ontario (GSP to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Greenville to Ontario
How far is Greenville to Ontario by plane?
The distance between Greenville and Ontario is about 1997.5 mi. 7h 16m is a normal flight duration for this route.
When did momondo last update prices for flights from Greenville Airport to Ontario Airport?
Prices for flights from Greenville Airport to Ontario Airport were last updated today.
How many operators does momondo search for flights from Greenville Airport to Ontario Airport?
As of February 2025, there are 2 operators available to choose from for flights from Greenville Airport to Ontario Airport.
How old do you have to be to fly from Greenville Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Greenville Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Greenville to Ontario?
Based on momondo bookings for flights between Greenville and Ontario, the leading airline is American Airlines, making up 78% of the total bookings. Other popular airlines include Delta with 22%.
Best airlines flying from Greenville to Ontario
Compare and see reviews for airlines that fly from Greenville to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $266 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $346 | Free Cancellation | Rating 8.0 8,427 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Greenville to Ontario?
It is quick and easy to find Greenville to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.
Can I find flights from Greenville to Ontario with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Greenville to Ontario flights to just show those with flexible booking policies.
How can momondo help me find flights from Greenville to Ontario?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Greenville.
I’m not ready to book a flight from Greenville to Ontario right now. Can momondo alert me if prices change?
Price alerts on flights to Ontario from Greenville 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.