$192+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GSP
May 28 — Jun 41
Round-trip
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
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Best
Last-minute
One-way
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 April 28, 2026.
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 April 28, 2026.
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Tue 6/97:10 am
GSP
- ONT
2 stops14h 15m
Delta
Deal found 4/23![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 4/25. 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.
Tue 8/1110:59 pm
ONT
- GSP
1 stop8h 59m
Delta
Tue 8/183:42 pm
GSP
- ONT
1 stop9h 14m
Delta
Deal found 4/25![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 am
ONT
- GSP
2 stops12h 38m
Delta
Tue 6/97:10 am
GSP
- ONT
2 stops14h 15m
Delta
Deal found 4/23![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 4/25. 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.
Tue 8/117:00 am
ONT
- GSP
2 stops12h 00m
Delta
Wed 8/197:45 am
GSP
- ONT
2 stops11h 29m
Delta
Deal found 4/25![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 4/27. 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 5/3010:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Tue 6/95:44 am
GSP
- ONT
1 stop7h 56m
Delta
Deal found 4/27![Delta logo]()
$396
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/2312:41 pm
ONT
- GSP
1 stop7h 16m
American Airlines
Sat 5/307:54 pm
GSP
- ONT
1 stop7h 05m
American Airlines
Deal found 4/27![American Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Tue 5/121:09 pm
GSP
- ONT
1 stop8h 27m
Delta
Deal found 4/23![Delta logo]()
$412
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Mon 5/1811:59 pm
ONT
- GSP
2 stops10h 15m
American Airlines
Sat 5/235:25 pm
GSP
- ONT
1 stop9h 34m
American Airlines
Deal found 4/27![American Airlines logo]()
$414
Best flights from Ontario to GreenvilleDiscover carefully curated flight deals from Ontario to Greenville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from Ontario to Greenville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:50 pm
ONT
- GSP
2 stops14h 05m
Delta
Tue 6/97:10 am
GSP
- ONT
2 stops14h 15m
Delta
Deal found 4/23![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Tue 8/117:13 pm
ONT
- GSP
2 stops11h 30m
United Airlines
Tue 8/185:26 pm
GSP
- ONT
1 stop7h 33m
United Airlines
Deal found 4/26![United Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 am
ONT
- GSP
2 stops12h 38m
Delta
Tue 6/97:10 am
GSP
- ONT
2 stops14h 15m
Delta
Deal found 4/23![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 4/26. 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.
Wed 6/34:57 pm
ONT
- GSP
2 stops13h 07m
Delta
Mon 6/85:44 am
GSP
- ONT
1 stop7h 56m
Delta
Deal found 4/26![Delta logo]()
$401
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 5/286:30 pm
ONT
- GSP
2 stops12h 25m
United Airlines
Sun 5/315:41 pm
GSP
- ONT
1 stop8h 10m
United Airlines
Deal found 4/23![United Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:57 pm
ONT
- GSP
2 stops13h 07m
Delta
Tue 5/121:09 pm
GSP
- ONT
1 stop8h 27m
Delta
Deal found 4/23![Delta logo]()
$417
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:00 am
ONT
- GSP
1 stop7h 10m
United Airlines
Wed 8/124:15 pm
GSP
- ONT
1 stop7h 37m
United Airlines
Deal found 4/24![United Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 4/27. 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.
Tue 7/1410:00 pm
ONT
- GSP
1 stop8h 13m
Delta
Sun 7/195:16 pm
GSP
- ONT
1 stop7h 34m
Delta
Deal found 4/27![Delta logo]()
$467
This Delta deal was found by Cheapflights users on 4/25. 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.
Fri 6/56:45 am
ONT
- GSP
2 stops13h 58m
Delta
Sun 6/75:44 am
GSP
- ONT
1 stop7h 56m
Delta
Deal found 4/25![Delta logo]()
$472
Last-minute flights from Ontario to GreenvilleDiscover last-minute flight deals from Ontario to Greenville. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Greenville. Data last updated April 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Tue 5/121:09 pm
GSP
- ONT
1 stop8h 27m
Delta
Deal found 4/23![Delta logo]()
$412
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Sat 5/165:40 am
GSP
- ONT
2 stops9h 39m
Delta
Deal found 4/23![Delta logo]()
$420
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Mon 5/1811:59 pm
ONT
- GSP
2 stops10h 15m
American Airlines
Sat 5/235:25 pm
GSP
- ONT
1 stop9h 34m
American Airlines
Deal found 4/27![American Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/205:00 am
ONT
- GSP
1 stop6h 49m
United Airlines
Wed 5/275:41 pm
GSP
- ONT
1 stop8h 10m
United Airlines
Deal found 4/27![United Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/2312:41 pm
ONT
- GSP
1 stop7h 16m
American Airlines
Sat 5/307:54 pm
GSP
- ONT
1 stop7h 05m
American Airlines
Deal found 4/27![American Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 4/27. 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 5/235:55 pm
ONT
- GSP
2 stops12h 07m
Delta
Sat 5/307:20 am
GSP
- ONT
2 stops11h 57m
Delta
Deal found 4/27![Delta logo]()
$419
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Tue 5/265:00 am
ONT
- GSP
1 stop7h 19m
United Airlines
Tue 6/24:15 pm
GSP
- ONT
1 stop7h 27m
United Airlines
Deal found 4/27![United Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 4/27. 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.
Fri 5/2910:00 pm
ONT
- GSP
1 stop8h 09m
Delta
Tue 6/95:44 am
GSP
- ONT
1 stop7h 56m
Delta
Deal found 4/27![Delta logo]()
$425
This Delta deal was found by Cheapflights users on 4/27. 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 5/3010:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Tue 6/95:44 am
GSP
- ONT
1 stop7h 56m
Delta
Deal found 4/27![Delta logo]()
$396
One-way flights from Ontario to GreenvilleSearch for one-way flight options from Ontario to Greenville. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from Ontario to Greenville. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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.
Wed 5/2710:00 pm
ONT
- GSP
1 stop8h 04m
Delta
Deal found 4/26![Delta logo]()
$192
This Delta deal was found by Cheapflights users on 4/27. 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.
Wed 6/34:57 pm
ONT
- GSP
2 stops13h 07m
Delta
Deal found 4/27![Delta logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:39 pm
ONT
- GSP
3 stops36h 00m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 4/26. 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.
Thu 5/287:05 am
ONT
- GSP
1 stop6h 12m
Delta
Deal found 4/26![Delta logo]()
$205
This Delta deal was found by Cheapflights users on 4/26. 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.
Thu 6/46:45 am
ONT
- GSP
2 stops13h 58m
Delta
Deal found 4/26![Delta logo]()
$210
This Delta deal was found by Cheapflights users on 4/26. 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.
Fri 5/2912:07 pm
ONT
- GSP
1 stop8h 36m
Delta
Deal found 4/26![Delta logo]()
$234
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 8/135:00 am
ONT
- GSP
1 stop7h 10m
United Airlines
Deal found 4/23![United Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:34 pm
ONT
- GSP
3 stops47h 05m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$238
This American Airlines deal was found by Cheapflights users on 4/28. 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 8/156:00 am
ONT
- GSP
2 stops10h 40m
American Airlines
Deal found 4/28![American Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 4/25. 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 8/127:00 am
ONT
- GSP
1 stop7h 02m
United Airlines
Deal found 4/25![United Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:03 am
ONT
- GSP
3 stops25h 29m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$255
Find 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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $304 (Delta) |
One-way from | $192 (Delta) |
Popular in | February |
Cheapest in | October |
Average price | $711 |
Cheapflights Fare Finder
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 April 28, 2026.
Use the filters below to find and compare flights from Ontario to Greenville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Wed 6/3
5:50 pm-10:55 am
2 stops14h 05m
Greenville
Tue 6/9
7:10 am-6:25 pm
2 stops14h 15m
$309
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Tue 8/11
7:13 pm-9:43 am
2 stops11h 30m
Greenville
Tue 8/18
5:26 pm-9:59 pm
1 stop7h 33m
$388
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Thu 6/4
6:00 am-9:38 pm
2 stops12h 38m
Greenville
Tue 6/9
7:10 am-6:25 pm
2 stops14h 15m
$389
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Wed 6/3
4:57 pm-9:04 am
2 stops13h 07m
Greenville
Mon 6/8
5:44 am-10:40 am
1 stop7h 56m
$401
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Mon 5/11
4:57 pm-9:04 am
2 stops13h 07m
Greenville
Tue 5/12
1:09 pm-6:36 pm
1 stop8h 27m
$417
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Tue 7/14
10:00 pm-9:13 am
1 stop8h 13m
Greenville
Sun 7/19
5:16 pm-9:50 pm
1 stop7h 34m
$467
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Fri 6/5
6:45 am-11:43 pm
2 stops13h 58m
Greenville
Sun 6/7
5:44 am-10:40 am
1 stop7h 56m
$472
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Thu 5/28
6:30 pm-9:55 am
2 stops12h 25m
Greenville
Sun 5/31
5:41 pm-10:51 pm
1 stop8h 10m
$484
Quickest round-trip
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Tue 8/11
5:00 am-3:10 pm
1 stop7h 10m
Greenville
Wed 8/12
4:15 pm-8:52 pm
1 stop7h 37m
$493
Cheapest one-way
OntarioGreenville
ONT - GSP
ONTGSP
Ontario
Wed 7/1
5:00 am-3:19 pm
1 stop7h 19m
$234
Showing 1-10 of 20 resultsSorted by cheapest first
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 April.
| 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.
ONT-GSP
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.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Greenville
What is the cheapest month to book a flight from Ontario to Greenville?
Currently, October is the cheapest month in which you can book a flight from Ontario to Greenville (average of $283). Flying from Ontario to Greenville in February is currently the most expensive (average of $886). 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.
How much does it cost to fly round-trip from Ontario to Greenville?
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 April 28, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Ontario to Greenville to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
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 Greenville?
Book flights to Greenville if you plan to visit one of these locationsGreer
Simpsonville
Greenwood
Duncan
Seneca
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Search flights from Ontario to Greenville by cabin class
Find flights from Ontario to Greenville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Greenville
Explore flights to Greenville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 28, 2026.
Ontario and Greenville flights
Browse other Ontario and Greenville flight options. Last updated on April 28, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on April 28, 2026.
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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 2,558,603 searches. Data last updated April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$446 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$274 | Average$431 | FlexibilityNo cancel fee | On-time71% |