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$203+ Cheap flights from Ontario to Greenville (ONT - GSP)

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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GSP
Oct 29 — Nov 51
Tue 10/29
Tue 11/5
1 adult, Economy
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ONT - GSP
Oct 29 - Nov 5

Find cheap flights from Ontario to Greenville with Cheapflights

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The best prices from Ontario to Greenville are usually found in October or April, booked 44 days in advance, depart on a Saturday or Wednesday and return on a Friday

Cheap flight deals from Ontario to Greenville

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Greenville (GSP). 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 October 24, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

January

Cheapest in

October

Round-trip from

$391
(American Airlines)

One-way from

$203
(American Airlines)
Provider with most accurate pricing for Ontario-Greenville flight deals.
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Provider most trusted by Cheapflights users for Ontario-Greenville flights.
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High demand for flights, 36% potential price rise
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Best time to find cheap flights, 22% potential price drop
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From Ontario to Greenville
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One-way flight from Ontario to Greenville
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Find flight deals from Ontario to Greenville

Cheapest flights from Ontario to Greenville
Explore the most affordable flight options available from Ontario to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2024.

This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/242:53 pmONT - GSP
1 stop6h 03mAmerican Airlines
Wed 12/46:00 amGSP - ONT
1 stop9h 03mAmerican Airlines
Deal found 10/23$391
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/167:10 amONT - GSP
1 stop6h 42mDelta
Thu 11/215:45 amGSP - ONT
1 stop7h 58mDelta
Deal found 10/24$406
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/136:10 amONT - GSP
1 stop7h 19mUnited Airlines
Sat 11/165:15 pmGSP - ONT
1 stop7h 47mUnited Airlines
Deal found 10/23$481
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/246:15 amONT - GSP
2 stops12h 30mSouthwest
Wed 12/412:00 pmGSP - ONT
2 stops9h 55mSouthwest
Deal found 10/23$546
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/296:00 amONT - GSP
2 stops13h 29mAlaska Airlines
Tue 11/198:00 amGSP - ONT
2 stops15h 03mAlaska Airlines
Deal found 10/23$747

Find flights from Ontario to Greenville within your budget

Customize your flight search to find flights from Ontario to Greenville 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 2,462,889 searches. Data last updated October 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$391 - $586

Route

Depart

Return

Price

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sun 11/24

1 stop6h 03m

Greenville

Wed 12/4

1 stop9h 03m

$391

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sat 11/16

1 stop6h 42m

Greenville

Thu 11/21

1 stop7h 58m

$406

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Wed 11/13

1 stop7h 19m

Greenville

Sat 11/16

1 stop7h 47m

$481

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Sun 11/24

2 stops12h 30m

Greenville

Wed 12/4

2 stops9h 55m

$546

OntarioGreenville

ONT - GSP

ONTGSP

Ontario

Mon 12/9

2 stops13h 29m

Greenville

Fri 12/13

2 stops15h 07m

$586

Flights are sorted by cheapest first

Deals found on 10/23

Compare providers for flights from Ontario to Greenville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Greenville in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy2 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Greenville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Greenville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Greenville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Greenville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Greenville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Greenville

Have a flexible travel schedule? Discover the best time to fly to Greenville from Ontario 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.

Travel insights for flights from Ontario to Greenville

Get recent, data-driven insights about flights from Ontario to Greenville including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Greenville. Price data was last updated on October 18, 2024.

The best time to book flights from Ontario to Greenville is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Find deals

What is the cheapest month to book a flight from Ontario to Greenville?

Currently, January is the cheapest month in which you can book a flight from Ontario to Greenville (average of $320). Flying from Ontario to Greenville in March is currently the most expensive (average of $377). 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.

Rainfall in Greenville by month

Plan your trip to Greenville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Greenville ranges from 3.6 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Greenville when rainfall is around 3.6 in.

Temperature in Greenville by month

Plan your trip to Greenville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Greenville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Greenville

Get insights into the airlines that provide service to Greenville. 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 Greenville. Reviews last updated October 24, 2024.
Read through reviews of airlines operating flights from Ontario to Greenville, such as United Airlines and Alaska Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,150 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
5,150 reviews
Southwest
8.1
Very good
5,150 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,410 reviews
Southwest
8.1
Very good
5,150 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,875 reviews
Southwest
8.1
Very good
5,150 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,275 reviews
Southwest
8.1
Very good
5,150 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,150 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.3

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Greenville. 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 Ontario to Greenville for under $400 on Cheapflights?

    Yes, there are multiple flights from Ontario to Greenville for under $400. The cheapest flight booked recently is on American Airlines for just $391, but on average you can expect to pay $482.

  • Are there last-minute flights available from Ontario to Greenville for under $700?

    There are currently 2+ open flights from Ontario to Greenville within the next 7 days for less than $700.

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

    According to our current data, American Airlines ($391), Delta ($406), and United Airlines ($481) offers the cheapest pricing from Ontario to Greenville. These flights start at 16% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $203 on American Airlines. Other airlines that offer cheap prices include Delta from $213 and United Airlines from $263 one-way.

  • What does ONT to GSP mean?

    ONT and GSP are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to GSP refers to a flight route from Ontario Airport to Greenville Airport.

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

    The amount of baggage you can bring on your Ontario to Greenville 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 Ontario to Greenville with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Greenville 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 Ontario to Greenville that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Greenville 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 Ontario to Greenville that allow pets onboard?

    Many airlines flying from Ontario to Greenville 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 Ontario to Greenville?

    Yes, you can often find last-minute deals on Ontario to Greenville 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 Ontario to Greenville flight deals updated?

    The Ontario to Greenville flight deals you see on this page were last updated on 10/24.

  • What is the cheapest month to book a flight from Ontario to Greenville?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Greenville (average of $320). Flying from Ontario to Greenville in March is currently the most expensive (average of $377). 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 Ontario to Greenville

Discover the top 2 airlines that operate flights from Ontario to Greenville. 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 2,462,889 searches. Data last updated October 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$295Average$438FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$347Average$454FlexibilityNo cancel feeOn-time71%
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