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Cheap flights from Greenville to Ontario (GSP - ONT) from $159

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
GSP — ONT
Jun 3 — Jun 101
From?
To?
Mon 6/3
Mon 6/10
1 adult, Economy
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Cheap flight deals from Greenville to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 29, 2024.

Popular in

November

Cheapest in

March

Average price

$605

Round-trip from

$238
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 25% potential price drop
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Average for round-trip flights in May 2024
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From Greenville to Ontario
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What is the cheapest day to fly round-trip from Greenville to Ontario?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 63% on the overall cost on flights from Greenville to Ontario.

How far in advance should I book a flight from Greenville to Ontario?

Find a great deal and save up to 143% by booking at least 53 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Greenville to Ontario within the next two weeks, with the cheapest ticket starting at $489.

What is the cheapest month to fly from Greenville to Ontario?

The best pricing can be found in the month of May. Prices to Ontario from Greenville average $495. You can even find prices in May for less than $495, as users have found deals to Ontario from as low as $237. The month of March appears to be one of the more expensive times to travel to Ontario from Greenville. Flying in the targeted month can save you up to 17%.

When is the cheapest time to fly from Greenville to Ontario (GSP - ONT)?

It’s typically best to fly out from Greenville to Ontario in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Delta flights from Greenville to Ontario

Explore cheap flight options specifically provided by Delta for the route between Greenville and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.
Take a peek at the cheapest Delta flights we've detected traveling from Greenville to Ontario. Come back soon if you're not finding the exact deal you're looking for.
Wed 6/197:05 amGSP - ONT
1 stop6h 15mDelta
Thu 6/2710:00 pmONT - GSP
1 stop8h 18mDelta
Deal found 5/27$362
Wed 6/197:05 amGSP - ONT
1 stop6h 15mDelta
Wed 6/2610:00 pmONT - GSP
1 stop8h 18mDelta
Deal found 5/27$372
Wed 6/197:05 amGSP - ONT
1 stop6h 15mDelta
Tue 6/2510:00 pmONT - GSP
1 stop8h 18mDelta
Deal found 5/27$378
Thu 7/45:45 amGSP - ONT
1 stop7h 35mDelta
Wed 7/1010:00 pmONT - GSP
1 stop8h 14mDelta
Deal found 5/27$381
Wed 6/197:05 amGSP - ONT
1 stop6h 15mDelta
Fri 6/217:05 amONT - GSP
1 stop9h 04mDelta
Deal found 5/27$392
Fri 8/301:34 pmGSP - ONT
1 stop8h 59mDelta
Mon 9/210:00 pmONT - GSP
1 stop9h 02mDelta
Deal found 5/27$406
Wed 6/197:05 amGSP - ONT
1 stop6h 15mDelta
Mon 6/2410:00 pmONT - GSP
1 stop8h 18mDelta
Deal found 5/27$412
Tue 6/184:00 pmGSP - ONT
1 stop6h 42mDelta
Thu 6/2710:00 pmONT - GSP
1 stop8h 18mDelta
Deal found 5/27$422
Tue 6/184:00 pmGSP - ONT
1 stop6h 42mDelta
Wed 6/2610:00 pmONT - GSP
1 stop8h 18mDelta
Deal found 5/27$432

Cheap American Airlines flights from Greenville to Ontario

Explore cheap flight options specifically provided by American Airlines for the route between Greenville and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.
Some of the lowest-priced American Airlines flights we've found at this time heading from Greenville to Ontario. Ensure the flight price, dates, time, and airline match your criteria before you book.
Fri 8/304:14 pmGSP - ONT
1 stop7h 09mAmerican Airlines
Tue 9/310:30 pmONT - GSP
1 stop9h 19mAmerican Airlines
Deal found 5/27$349
Fri 8/304:14 pmGSP - ONT
2 stops8h 26mAmerican Airlines
Tue 9/310:30 pmONT - GSP
1 stop9h 19mAmerican Airlines
Deal found 5/27$354
Thu 9/264:16 pmGSP - ONT
2 stops10h 40mAmerican Airlines
Sun 9/2911:59 pmONT - GSP
1 stop8h 39mAmerican Airlines
Deal found 5/27$376
Fri 6/216:06 pmGSP - ONT
1 stop7h 03mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
2 stops9h 13mAmerican Airlines
Deal found 5/28$426
Thu 9/264:16 pmGSP - ONT
2 stops10h 40mAmerican Airlines
Sun 9/297:23 pmONT - GSP
2 stops10h 02mAmerican Airlines
Deal found 5/27$439
Mon 6/176:32 pmGSP - ONT
1 stop7h 27mAmerican Airlines
Mon 6/247:26 pmONT - GSP
2 stops9h 55mAmerican Airlines
Deal found 5/27$468
Fri 8/304:14 pmGSP - ONT
2 stops8h 26mAmerican Airlines
Tue 9/39:35 amONT - GSP
2 stops11h 23mAmerican Airlines
Deal found 5/27$469
Fri 6/214:04 pmGSP - ONT
2 stops8h 36mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
2 stops9h 13mAmerican Airlines
Deal found 5/28$479
Mon 6/174:04 pmGSP - ONT
2 stops8h 36mAmerican Airlines
Mon 6/247:26 pmONT - GSP
2 stops9h 55mAmerican Airlines
Deal found 5/27$493

Cheap Greenville to Ontario flights in May & June 2024

Find cheap flight options from Greenville to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on May 29, 2024.
Scroll through some of the best deals on flights from Greenville to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 6/218:14 pmGSP - ONT
1 stop6h 45mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
1 stop8h 50mAmerican Airlines
Deal found 5/28$392
Fri 6/216:06 pmGSP - ONT
1 stop7h 03mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
2 stops9h 13mAmerican Airlines
Deal found 5/28$426
Fri 6/214:04 pmGSP - ONT
2 stops8h 36mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
2 stops9h 13mAmerican Airlines
Deal found 5/28$479
Sun 6/164:07 pmGSP - ONT
1 stop7h 41mUnited Airlines
Mon 6/246:25 pmONT - GSP
1 stop18h 01mUnited Airlines
Deal found 5/28$702
Fri 5/314:07 pmGSP - ONT
1 stop7h 41mUnited Airlines
Sun 6/25:15 amONT - GSP
2 stops13h 40mUnited Airlines
Deal found 5/28$843
Fri 5/3110:53 amGSP - ONT
2 stops9h 35mUnited Airlines
Sun 6/25:15 amONT - GSP
2 stops13h 40mUnited Airlines
Deal found 5/28$848
Mon 6/106:32 pmGSP - ONT
1 stop7h 27mAmerican Airlines
Fri 6/1410:45 pmONT - GSP
1 stop6h 36mAmerican Airlines
Deal found 5/28$883
Fri 5/312:32 pmGSP - ONT
1 stop7h 27mAmerican Airlines
Sun 6/210:29 pmONT - GSP
1 stop8h 24mAmerican Airlines
Deal found 5/28$885
Mon 6/104:04 pmGSP - ONT
2 stops9h 05mAmerican Airlines
Fri 6/1410:45 pmONT - GSP
1 stop9h 08mAmerican Airlines
Deal found 5/28$888

Greenville to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Greenville and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.
Scroll through some of the best deals on flights from Greenville to Ontario in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 6/218:14 pmGSP - ONT
1 stop6h 45mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
1 stop8h 50mAmerican Airlines
Deal found 5/28$392
Tue 7/95:45 amGSP - ONT
1 stop7h 28mDelta
Thu 7/1811:23 amONT - GSP
1 stop6h 36mDelta
Deal found 5/28$412
Fri 6/216:06 pmGSP - ONT
1 stop7h 03mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
2 stops9h 13mAmerican Airlines
Deal found 5/28$426
Tue 10/227:00 amGSP - ONT
2 stops13h 17mUnited Airlines
Sat 10/266:00 amONT - GSP
1 stop7h 01mUnited Airlines
Deal found 5/28$443
Thu 7/115:01 pmGSP - ONT
1 stop8h 56mDelta
Sat 7/2010:00 pmONT - GSP
1 stop8h 14mDelta
Deal found 5/28$446
Tue 10/227:00 amGSP - ONT
2 stops13h 17mUnited Airlines
Sat 10/265:15 amONT - GSP
2 stops13h 44mUnited Airlines
Deal found 5/28$448
Fri 6/214:04 pmGSP - ONT
2 stops8h 36mAmerican Airlines
Tue 6/2511:59 pmONT - GSP
2 stops9h 13mAmerican Airlines
Deal found 5/28$479
Sat 8/104:40 pmGSP - ONT
1 stop7h 08mUnited Airlines
Sat 8/175:10 amONT - GSP
1 stop7h 22mUnited Airlines
Deal found 5/28$488
Sat 8/107:00 amGSP - ONT
2 stops13h 28mUnited Airlines
Sat 8/175:10 amONT - GSP
1 stop7h 22mUnited Airlines
Deal found 5/28$493

One-way flights to Ontario from Greenville

Search for one-way flight options from Greenville to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.
If you're seeking multiple options on one-way flights from Greenville to Ontario, be sure to check out these deals, which are updated often. For those needing a return trip from Greenville, there is a search form available above.
Tue 7/95:45 amGSP - ONT
1 stop7h 28mDelta
Deal found 5/28$159
Fri 7/125:45 amGSP - ONT
1 stop7h 28mDelta
Deal found 5/28$193
Thu 7/117:19 pmGSP - ONT
1 stop6h 41mAmerican Airlines
Deal found 5/28$202
Mon 9/164:05 pmGSP - ONT
1 stop9h 23mDelta
Deal found 5/27$213
Thu 7/111:34 pmGSP - ONT
1 stop8h 53mDelta
Deal found 5/28$253
Sun 9/224:16 pmGSP - ONT
1 stop7h 26mAmerican Airlines
Deal found 5/27$282
Mon 6/174:55 pmGSP - ONT
1 stop7h 19mUnited Airlines
Deal found 5/28$303
Mon 9/234:40 pmGSP - ONT
2 stops11h 05mUnited Airlines
Deal found 5/27$308
Mon 9/166:30 amGSP - ONT
2 stops17h 32mUnited Airlines
Deal found 5/27$343

Find flights from Greenville to Ontario within your budget

Customize your flight search to find flights from Greenville to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$349 - $896

Route

Depart

Return

Price

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Fri 8/30

1 stop7h 09m

Ontario

Tue 9/3

1 stop9h 19m

$349

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Fri 8/30

2 stops8h 26m

Ontario

Tue 9/3

1 stop9h 19m

$354

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Wed 6/19

1 stop6h 15m

Ontario

Thu 6/27

1 stop8h 18m

$362

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Wed 6/19

1 stop6h 15m

Ontario

Wed 6/26

1 stop8h 18m

$372

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Thu 9/26

2 stops10h 40m

Ontario

Sun 9/29

1 stop8h 39m

$376

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Wed 6/19

1 stop6h 15m

Ontario

Tue 6/25

1 stop8h 18m

$378

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Wed 8/7

1 stop7h 01m

Ontario

Wed 8/14

1 stop6h 52m

$418

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Wed 8/7

2 stops9h 40m

Ontario

Wed 8/14

1 stop6h 52m

$443

GreenvilleOntario

GSP - ONT

GSPONT

Greenville

Fri 8/16

2 stops14h 44m

Ontario

Mon 8/19

2 stops13h 06m

$896

Flights are sorted by cheapest first

Deals found on 5/27

When is the cheapest time to fly from Greenville to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Greenville to Ontario. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Greenville to Ontario flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Greenville to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Greenville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 29, 2024.
Read reviews from past customers who have flown Delta, American Airlines and United Airlines from Greenville to Ontario. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,194 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,476 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,799 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,316 reviews
Alaska Airlines
8.1
Very good
9,194 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Greenville to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Greenville to Ontario for under $400 on Cheapflights?

    Yes, there are multiple flights from Greenville to Ontario for under $400. The cheapest flight booked recently is on American Airlines for just $349, but on average you can expect to pay $405.

  • What are the cheapest airlines flying from Greenville to Ontario round-trip?

    Our cheapest airline available from Greenville to Ontario is American Airlines. Our recent data shows that you can find tickets from as low as $349 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $362 and $418 round-trip. Users have found that American Airlines is 28% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Greenville to Ontario one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $159. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Greenville to Ontario for a low price.

  • What does GSP to ONT mean?

    Great question - GSP to ONT just means Greenville Airport to Ontario Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Greenville to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Greenville to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Greenville to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Greenville to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Greenville to Ontario that include hotel bookings?

    Yes. In addition to deals on Greenville to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greenville to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greenville to Ontario.

  • Can I find deals for business class flights from Greenville to Ontario?

    Yes. Cheapflights offers flight deals from Greenville to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Greenville to Ontario that allow pets onboard?

    Many airlines flying from Greenville to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Greenville to Ontario?

    Yes, you can often find last-minute deals on Greenville to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Greenville to Ontario flight deals updated?

    The Greenville to Ontario flight deals you see on this page were last updated on 5/28.

  • When is the best time to book a flight from Greenville to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Greenville to Ontario (average of $238). Flying from Greenville to Ontario in June is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Greenville to Ontario

Discover the top 2 airlines that operate flights from Greenville to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$301Average$461FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$365Average$627FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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Search flights from Greenville to Ontario by cabin class

Find flights from Greenville to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Greenville to Ontario?

When you search for this flight from Greenville to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Greenville to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Greenville by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Greenville to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Greenville shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Greenville to Ontario become cheaper?

Yes! Start tracking prices for Greenville to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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