$108+ Cheap flights from Illinois to Greenville (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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois 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 Illinois to Greenville
Keep the following information in mind while searching for Illinois to Greenville flight deals. Data was last updated June 18, 2025.
Round-trip from | $215 (Delta) |
|---|---|
One-way from | $108 (Delta) |
Popular in | November |
Cheapest in | April |
Average price | $297 |
Good round-trip deal | $240 or less |
Good one-way deal | $208 or less |
Find flight deals from Illinois to Greenville
Cheapest flights from Illinois to GreenvilleExplore the most affordable flight options available from Illinois to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.
Explore the most affordable flight options available from Illinois to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.
This Delta deal was found by Cheapflights users on 6/18. 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.
This Delta deal was found by Cheapflights users on 6/18. 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.
This Delta deal was found by Cheapflights users on 6/15. 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.
This United Airlines deal was found by Cheapflights users on 6/17. 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.
This American Airlines deal was found by Cheapflights users on 6/17. 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.
This Southwest deal was found by Cheapflights users on 6/15. 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.
This Southwest deal was found by Cheapflights users on 6/16. 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.
This American Airlines deal was found by Cheapflights users on 6/17. 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.
This United Airlines deal was found by Cheapflights users on 6/17. 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.
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/18. 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.
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois 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 June 18, 2025.
Use the filters below to find and compare flights from Illinois to Greenville that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoGreenville
MDW - GSP
MDWGSP
Chicago Midway
Sat 8/2
1:09 pm-6:09 pm
1 stop4h 00m
Greenville
Sat 8/9
7:00 am-12:29 pm
1 stop6h 29m
ChicagoGreenville
ORD - GSP
ORDGSP
Chicago O'Hare Intl
Sat 8/2
11:01 am-6:09 pm
1 stop6h 08m
Greenville
Sat 8/9
7:00 am-12:50 pm
1 stop6h 50m
St. LouisGreenville
STL - GSP
STLGSP
Lambert-St Louis
Mon 8/11
3:40 pm-10:24 pm
1 stop5h 44m
Greenville
Wed 8/13
5:30 am-8:12 am
1 stop3h 42m
ChicagoGreenville
ORD - GSP
ORDGSP
Chicago O'Hare Intl
Mon 6/30
6:50 pm-9:43 pm
Nonstop1h 53m
Greenville
Tue 7/8
6:32 pm-7:40 pm
Nonstop2h 08m
ChicagoGreenville
ORD - GSP
ORDGSP
Chicago O'Hare Intl
Tue 7/15
1:05 pm-6:57 pm
1 stop4h 52m
Greenville
Tue 7/22
10:27 am-4:52 pm
1 stop7h 25m
St. LouisGreenville
STL - GSP
STLGSP
Lambert-St Louis
Mon 8/11
5:15 am-1:15 pm
1 stop7h 00m
Greenville
Wed 8/13
9:30 am-6:55 pm
2 stops10h 25m
ChicagoGreenville
MDW - GSP
MDWGSP
Chicago Midway
Sat 8/16
9:35 am-4:30 pm
1 stop5h 55m
Greenville
Tue 8/19
10:25 am-3:10 pm
2 stops5h 45m
ChicagoGreenville
ORD - GSP
ORDGSP
Chicago O'Hare Intl
Mon 7/21
5:05 am-3:15 pm
1 stop9h 10m
Greenville
Wed 7/23
9:42 pm-8:55 am
1 stop12h 13m
MolineGreenville
MLI - GSP
MLIGSP
Moline Quad-City
Tue 7/22
4:22 pm-9:36 pm
1 stop4h 14m
Greenville
Mon 7/28
6:09 pm-10:08 pm
1 stop4h 59m
MolineGreenville
MLI - GSP
MLIGSP
Moline Quad-City
Fri 7/4
10:59 am-4:54 pm
1 stop4h 55m
Greenville
Fri 7/11
5:35 pm-9:37 pm
1 stop5h 02m
Best time to book a flight from Illinois to Greenville
Have a flexible travel schedule? Discover the best time to fly to Greenville from Illinois with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Greenville
What is the cheapest month to book a flight from Illinois to Greenville?
Currently, January is the cheapest month in which you can book a flight from Illinois to Greenville (average of $329). Flying from Illinois to Greenville in March is currently the most expensive (average of $386). 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.
What is the cheapest time of day to fly from IL to GSP?
Find hourly flight availability from Illinois to Greenville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Greenville as you normally would.
Weekly flight availability from Illinois to Greenville
Explore weekly flight availability from Illinois to Greenville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 18, 2025.
The most flights from USIL to GSP are scheduled on a Wednesday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
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 June 18, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Illinois to Greenville. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
John,May 2025
PVD - BNA
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
John,May 2025
PVD - BNA
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
John,May 2025
PVD - BNA
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
John,May 2025
PVD - BNA
Boarding
Entertainment
Food
Overall
Crew
Comfort
Reviews
John,May 2025
PVD - BNA
Related info for your journey
Find useful and relevant information for your journey from Illinois to Greenville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to Greenville
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Illinois to Greenville
Discover the top 4 airlines that operate flights from Illinois 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 June 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$204 | Average$344 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$210 | Average$372 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$214 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$385 | FlexibilityNo cancel fee | On-time63% |