$176+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GSP
Feb 25 — Mar 41
1 adult, Economy
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Find cheap flights from Ontario to Greenville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 February 20, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $401 (American Airlines) |
One-way from | $176 (Delta) |
Popular in | February |
Cheapest in | October |
Average price | $562 |
Find flight deals from Ontario to Greenville
Cheapest flights from Ontario to GreenvilleExplore 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 February 20, 2025.
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 February 20, 2025.
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 5/1010:51 amONT - GSP
1 stop8h 08mAmerican Airlines
Sat 5/1712:16 pmGSP - ONT
1 stop9h 08mAmerican Airlines
Deal found 2/20![American Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 2/20. 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.
Mon 8/1110:59 pmONT - GSP
1 stop7h 34mDelta
Sat 8/166:40 pmGSP - ONT
1 stop6h 49mDelta
Deal found 2/20![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 3/75:05 amONT - GSP
1 stop7h 11mUnited Airlines
Tue 3/114:05 pmGSP - ONT
1 stop7h 52mUnited Airlines
Deal found 2/20![United Airlines logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Wed 10/86:00 amONT - GSP
2 stops12h 34mAlaska Airlines
Thu 10/168:01 amGSP - ONT
2 stops13h 16mAlaska Airlines
Deal found 2/20![Alaska Airlines logo]()
$657
This Southwest deal was found by Cheapflights users on 2/20. 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.
Wed 2/269:00 amONT - GSP
2 stops8h 50mSouthwest
Mon 3/311:30 amGSP - ONT
2 stops11h 45mSouthwest
Deal found 2/20![Southwest logo]()
$840
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 2,558,603 searches. Data last updated February 20, 2025.
Fly from
Ontario
Fly to
Greenville
Route
Depart
Return
Price
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Sat 5/10
10:51 am-9:59 pm
1 stop8h 08m
Greenville
Sat 5/17
12:16 pm-6:24 pm
1 stop9h 08m
$401
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Mon 8/11
10:59 pm-9:33 am
1 stop7h 34m
Greenville
Sat 8/16
6:40 pm-10:29 pm
1 stop6h 49m
$409
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Fri 3/7
5:05 am-3:16 pm
1 stop7h 11m
Greenville
Tue 3/11
4:05 pm-8:57 pm
1 stop7h 52m
$477
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Thu 3/6
7:14 pm-12:02 pm
2 stops13h 48m
Greenville
Tue 3/25
6:00 am-6:23 pm
2 stops15h 23m
$723
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Sun 3/2
7:50 pm-10:45 am
2 stops11h 55m
Greenville
Tue 3/4
11:00 am-5:00 pm
2 stops9h 00m
$840
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Tue 4/1
12:46 pm-10:14 pm
1 stop6h 28m
$176
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Mon 3/31
10:27 pm-8:28 am
1 stop7h 01m
$225
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Tue 3/11
5:05 am-3:16 pm
1 stop7h 11m
$226
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Tue 3/11
6:00 am-9:51 pm
2 stops12h 51m
$329
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
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 $329). Flying from Ontario to Greenville in March is currently the most expensive (average of $396). 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 February 20, 2025.
Read through reviews of airlines operating flights from Ontario to Greenville, such as Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.1
Food
7.1
Entertainment
7.6
Overall
8.1
Crew
8.7
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentArlene,May 2024
SAN - OAK
Comfort
8.1
Food
7.1
Entertainment
7.6
Overall
8.1
Crew
8.7
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentArlene,May 2024
SAN - OAK
Comfort
8.1
Food
7.1
Entertainment
7.6
Overall
8.1
Crew
8.7
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentArlene,May 2024
SAN - OAK
Comfort
8.1
Food
7.1
Entertainment
7.6
Overall
8.1
Crew
8.7
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentArlene,May 2024
SAN - OAK
Comfort
8.1
Food
7.1
Entertainment
7.6
Overall
8.1
Crew
8.7
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentArlene,May 2024
SAN - OAK
Comfort
8.1
Food
7.1
Entertainment
7.6
Overall
8.1
Crew
8.7
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentArlene,May 2024
SAN - OAK
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.
Traveling to a place near Ontario?
Book flights to Ontario if you plan to visit one of these locationsSimpsonville
Seneca
Anderson
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Alternative routes for Ontario to Greenville
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Ontario to Greenville
Discover the top 3 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 2,558,603 searches. Data last updated February 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$467 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$342 | Average$430 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$371 | Average$486 | FlexibilityNo cancel fee | On-time69% |