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Greenville

$117+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GSP
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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Cheap flight deals from Illinois to Greenville

Cheapest flights from Illinois to Greenville
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 April 29, 2026.

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.
Mon 6/18:05 am
ORD
-
GSP
1 stop7h 10m
Multiple Airlines
Mon 6/81:22 pm
GSP
-
ORD
1 stop24h 03m
Multiple Airlines
Deal found 4/27$206
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.
Fri 5/155:05 am
ORD
-
GSP
1 stop10h 48m
Multiple Airlines
Mon 5/188:28 pm
GSP
-
ORD
1 stop27h 45m
Multiple Airlines
Deal found 4/27$238
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:33 pm
ORD
-
GSP
1 stop19h 42m
Multiple Airlines
Mon 6/15:05 pm
GSP
-
ORD
1 stop20h 32m
Multiple Airlines
Deal found 4/25$246
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:05 am
STL
-
GSP
1 stop4h 00m
Delta
Tue 6/238:52 am
GSP
-
STL
1 stop4h 42m
Delta
Deal found 4/28$247
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.
Fri 5/298:05 am
ORD
-
GSP
1 stop7h 10m
Multiple Airlines
Mon 6/14:10 pm
GSP
-
ORD
2 stops28h 41m
Multiple Airlines
Deal found 4/27$250
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:30 pm
STL
-
GSP
1 stop6h 10m
Southwest
Tue 6/212:50 pm
GSP
-
STL
2 stops8h 10m
Southwest
Deal found 4/28$252
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/207:05 am
ORD
-
GSP
Nonstop2h 06m
United Airlines
Tue 6/235:41 pm
GSP
-
ORD
Nonstop2h 17m
United Airlines
Deal found 4/28$255
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 5/201:59 pm
STL
-
GSP
1 stop6h 39m
Delta
Wed 6/1010:03 am
GSP
-
STL
1 stop3h 31m
Delta
Deal found 4/23$257
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:52 am
ORD
-
GSP
1 stop28h 22m
Multiple Airlines
Mon 6/158:28 pm
GSP
-
ORD
1 stop27h 51m
Multiple Airlines
Deal found 4/25$259
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 7/95:10 am
ORD
-
GSP
1 stop13h 46m
Multiple Airlines
Thu 7/168:37 am
GSP
-
ORD
1 stop16h 22m
Multiple Airlines
Deal found 4/26$260
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.
Mon 5/257:05 am
STL
-
GSP
1 stop6h 10m
Delta
Tue 6/25:40 am
GSP
-
STL
1 stop3h 38m
Delta
Deal found 4/25$266
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:35 am
STL
-
GSP
1 stop3h 35m
Southwest
Wed 6/108:25 am
GSP
-
STL
2 stops11h 00m
Southwest
Deal found 4/23$269

Find flight deals from Illinois to Greenville

Keep the following information in mind while searching for Illinois to Greenville flight deals. Data was last updated April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(Kiwi.com)

One-way from

$117
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$320

Good round-trip deal

$335 or less

Good one-way deal

$253 or less
Provider with most accurate pricing for Chicago (CHI)-Greenville flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Greenville flights.
Search Deals
From Illinois to Greenville
Search Deals
One-way flight from Illinois to Greenville
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Greenville.
Search Deals
Price to beat on a one-way flight from Illinois to Greenville.
Search 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 April 29, 2026.
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

Cheapest round-trip

St. LouisGreenville

STL - GSP

STLGSP

Lambert-St Louis

Wed 6/3

6:00 am-12:05 pm

1 stop5h 05m

Greenville

Tue 6/23

5:44 am-8:16 am

1 stop3h 32m

$247
Quickest round-trip

ChicagoGreenville

ORD - GSP

ORDGSP

Chicago O'Hare Intl

Sat 6/27

6:10 pm-9:17 pm

Nonstop2h 07m

Greenville

Mon 6/29

7:40 pm-11:26 pm

1 stop4h 46m

$272

ChicagoGreenville

MDW - GSP

MDWGSP

Chicago Midway

Tue 6/16

7:25 am-1:10 pm

1 stop4h 45m

Greenville

Tue 6/23

7:50 pm-11:10 pm

1 stop4h 20m

$275

ChicagoGreenville

ORD - GSP

ORDGSP

Chicago O'Hare Intl

Sat 6/20

5:30 am-12:18 pm

1 stop5h 48m

Greenville

Tue 6/23

5:16 pm-8:32 pm

1 stop4h 16m

$275

ChicagoGreenville

ORD - GSP

ORDGSP

Chicago O'Hare Intl

Sat 6/27

5:30 am-12:18 pm

1 stop5h 48m

Greenville

Wed 7/1

7:10 am-10:50 am

1 stop4h 40m

$275

ChicagoGreenville

ORD - GSP

ORDGSP

Chicago O'Hare Intl

Fri 7/3

1:40 pm-9:48 pm

1 stop7h 08m

Greenville

Sat 7/4

12:46 pm-4:30 pm

1 stop4h 44m

$275

ChicagoGreenville

ORD - GSP

ORDGSP

Chicago O'Hare Intl

Thu 7/2

6:35 am-2:04 pm

1 stop6h 29m

Greenville

Mon 7/6

6:43 pm-8:14 pm

Nonstop2h 31m

$279

ChicagoGreenville

MDW - GSP

MDWGSP

Chicago Midway

Thu 6/4

6:23 am-2:15 pm

1 stop6h 52m

Greenville

Sat 6/6

7:20 am-12:42 pm

1 stop6h 22m

$282

ChicagoGreenville

MDW - GSP

MDWGSP

Chicago Midway

Sun 5/24

6:23 am-12:08 pm

1 stop4h 45m

Greenville

Sun 5/31

6:45 am-10:00 am

1 stop4h 15m

$282

ChicagoGreenville

MDW - GSP

MDWGSP

Chicago Midway

Sat 6/27

6:00 am-12:18 pm

1 stop5h 18m

Greenville

Mon 6/29

7:10 am-12:41 pm

1 stop6h 31m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 59 resultsSorted by cheapest first
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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.
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 Illinois to Greenville

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

To ensure you get the cheapest price possible for a flight from Illinois to Greenville, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, June is the cheapest month in which you can book a flight from Illinois to Greenville (average of $146). Flying from Illinois to Greenville in February is currently the most expensive (average of $202). 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 April 29, 2026.

When flying from Illinois to Greenville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight in the evening.

What is the cheapest day to fly from Illinois to Greenville?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Greenville. Price data was last updated on April 25, 2026.

Travelers seeking maximum savings on their Illinois to Greenville flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 April 29, 2026.

The most flights from USIL to GSP are scheduled on a Tuesday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Illinois to Greenville?

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.

  • What airport do you fly into for flights to Greenville from Illinois?

    Located just 10.4 mi from the city center, Greenville (GSP) is the airport most travelers will use when flying to Greenville from Illinois.

  • How long is the flight from Illinois to Greenville?

    For as low as $272, Delta can have you in Greenville from Illinois in 2h 07m. Airlines will cover a distance of 577 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $107 on Southwest. Other airlines that offer cheap prices include Delta from $107 and American Airlines from $132 one-way.

  • What are the most popular routes from Illinois to Greenville?

    The most popular route from Illinois to Greenville is Chicago O'Hare Intl - Greenville. You may also consider Chicago Midway - Greenville or Lambert-St Louis - Greenville.

  • What are the most reliable airlines from Illinois to Greenville?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Greenville on time: Republic Airways (79%), Envoy Air (78%), United Airlines (73%).

  • What are the cheapest flights from Illinois to Greenville?

    Looking at all options, your cheapest flight can be booked for $151. While the most popular route (Chicago O'Hare Intl - Greenville) can be booked for $250 on average, our data indicates $361 when flying from Illinois to Greenville.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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.

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

    Currently, June is the cheapest month in which you can book a flight from Illinois to Greenville (average of $146). Flying from Illinois to Greenville in February is currently the most expensive (average of $202). 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

Traveling to a place near Greenville?

Book flights to Greenville if you plan to visit one of these locations
Greer
Simpsonville
Greenwood
Duncan
Seneca

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Top 3 airlines flying from Illinois to Greenville

Discover the top 3 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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$146Average$287FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$202Average$349FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$356FlexibilityNo cancel feeOn-time69%

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