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$99+ Cheap flights from Greenville (GSP) to Illinois

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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Greenville to Illinois

Cheapest flights from Greenville to Illinois
Explore the most affordable flight options available from Greenville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This American Airlines deal was found by Cheapflights users on 11/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amGSP - ORD
Nonstop2h 13mAmerican Airlines
Thu 12/188:08 pmORD - GSP
Nonstop2h 00mAmerican Airlines
Deal found 11/26$229
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/245:36 pmGSP - ORD
Nonstop2h 19mUnited Airlines
Wed 12/317:50 amORD - GSP
Nonstop2h 06mUnited Airlines
Deal found 11/25$231
This American Airlines deal was found by Cheapflights users on 11/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:28 amGSP - ORD
Nonstop2h 11mAmerican Airlines
Sat 11/297:12 pmORD - GSP
Nonstop2h 02mAmerican Airlines
Deal found 11/24$234
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:03 pmGSP - ORD
1 stop19h 18mMultiple Airlines
Mon 12/157:20 amORD - GSP
1 stop11h 03mMultiple Airlines
Deal found 11/24$240
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:00 pmGSP - ORD
1 stop21h 08mMultiple Airlines
Thu 12/1812:39 pmORD - GSP
2 stops20h 12mMultiple Airlines
Deal found 11/24$248
This Delta deal was found by Cheapflights users on 11/26. 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 12/115:35 amGSP - ORD
1 stop4h 04mDelta
Thu 12/186:04 pmORD - GSP
1 stop4h 36mDelta
Deal found 11/26$249
This Delta deal was found by Cheapflights users on 11/26. 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 12/115:35 amGSP - MDW
1 stop5h 19mDelta
Thu 12/181:14 pmMDW - GSP
1 stop3h 35mDelta
Deal found 11/26$249
This American Airlines deal was found by Cheapflights users on 11/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:14 pmGSP - ORD
Nonstop2h 16mAmerican Airlines
Mon 12/156:53 pmORD - GSP
Nonstop2h 08mAmerican Airlines
Deal found 11/24$254
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/244:40 pmGSP - ORD
1 stop23h 22mMultiple Airlines
Wed 12/3112:39 pmORD - GSP
2 stops21h 14mMultiple Airlines
Deal found 11/25$256
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:00 pmGSP - ORD
1 stop21h 08mMultiple Airlines
Sun 12/73:20 pmORD - GSP
1 stop21h 50mMultiple Airlines
Deal found 11/24$258
This Delta deal was found by Cheapflights users on 11/26. 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 12/107:25 amGSP - MDW
1 stop6h 09mDelta
Sat 12/134:29 pmMDW - GSP
1 stop6h 12mDelta
Deal found 11/26$269
This Southwest deal was found by Cheapflights users on 11/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:15 pmGSP - MDW
1 stop8h 55mSouthwest
Mon 12/156:40 amMDW - GSP
2 stops8h 25mSouthwest
Deal found 11/24$294

Cheap flight deals from Greenville to Illinois

Keep the following information in mind while searching for Greenville to Illinois flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$180
(Kiwi.com)

One-way from

$99
(Southwest)

Popular in

December

Cheapest in

November

Average price

$265

Good round-trip deal

$310 or less

Good one-way deal

$233 or less
Provider with most accurate pricing for Greenville-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greenville-Chicago (CHI) flights.
Search Deals
From Greenville to Illinois
Search Deals
One-way flight from Greenville to Illinois
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Greenville to Illinois.
Search Deals
Price to beat on a one-way flight from Greenville to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville to Illinois 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 November 26, 2025.
Use the filters below to find and compare flights from Greenville to Illinois that are best for you.

Fly from

Greenville

Fly to

Illinois

Route

Depart

Return

Price

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Fri 1/23

4:39 pm-11:33 pm

1 stop7h 54m

Lambert-St Louis

Sun 1/25

4:45 pm-3:59 pm

1 stop22h 14m

$180

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Wed 4/8

6:00 am-11:15 am

1 stop6h 15m

Chicago O'Hare Intl

Sat 4/11

5:29 pm-10:42 pm

1 stop4h 13m

$215

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Sat 1/24

7:20 am-1:08 pm

1 stop6h 48m

Chicago O'Hare Intl

Sat 1/31

11:20 am-6:14 pm

1 stop5h 54m

$215

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Wed 4/1

6:00 am-11:15 am

1 stop6h 15m

Chicago O'Hare Intl

Sat 4/4

5:29 pm-10:42 pm

1 stop4h 13m

$215

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 2/20

6:49 am-10:08 am

1 stop4h 19m

Chicago O'Hare Intl

Tue 2/24

5:37 pm-10:24 pm

1 stop3h 47m

$215

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 2/20

7:40 pm-10:42 pm

1 stop4h 02m

Chicago Midway

Tue 2/24

6:00 am-11:08 am

1 stop4h 08m

$215

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Thu 1/22

6:45 pm-10:23 am

2 stops16h 38m

Lambert-St Louis

Sun 1/25

4:45 pm-3:59 pm

1 stop22h 14m

$217

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 2/19

6:00 am-1:23 pm

1 stop8h 23m

Chicago O'Hare Intl

Mon 2/23

2:30 pm-10:13 pm

1 stop6h 43m

$222

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Mon 1/26

9:48 am-10:46 pm

2 stops13h 58m

Chicago O'Hare Intl

Wed 1/28

7:45 pm-9:07 pm

1 stop24h 22m

$225

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Wed 4/1

7:47 am-9:10 am

Nonstop2h 23m

Chicago O'Hare Intl

Sat 4/4

7:12 am-2:04 pm

1 stop5h 52m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 57 results
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Best time to book a flight from Greenville to Illinois

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

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

Currently, February is the cheapest month in which you can book a flight from Greenville to Illinois (average of $57). Flying from Greenville to Illinois in June is currently the most expensive (average of $161). 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 GSP to IL?

Find hourly flight availability from Greenville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

One of the essential ways to save on airfare from Greenville to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 26% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Greenville to Illinois. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Greenville to Illinois

Explore weekly flight availability from Greenville to Illinois. 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 November 26, 2025.

The most flights from GSP to USIL are scheduled on a Tuesday (20 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 26, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Greenville to Illinois 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.
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,999 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,046 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,038 reviews
Southwest
8.0
Very good
4,254 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Greenville to Illinois. 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 from for flights from Greenville to Illinois?

    If you book a flight to Illinois from Greenville, you will be flying from Greenville, which is the city’s only airport. Greenville (GSP) is located 10.4 mi from the center of Greenville.

  • How long is the flight from Greenville to Illinois?

    For as low as $233, Delta can have you in Illinois from Greenville in 5h 50m. There are 562 mi between Greenville and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

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

    While some choose either Greenville - Chicago Midway or Greenville - Lambert-St Louis, Greenville - Chicago O'Hare Intl is the most popular route from Greenville to Illinois.

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

    Consider Qatar Airways (97%), Republic Airways (96%) or PSA Airlines (95%) when booking your flight. These represent the most reliable airlines when flying from Greenville to Illinois.

  • What are the cheapest flights from Greenville to Illinois?

    On average you can expect to pay $1,024 for a flight from Greenville to Illinois. The cheapest flight overall is $133 while the most popular route, (Greenville - Chicago O'Hare Intl) is currently priced at $195.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Greenville to Illinois 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 Greenville to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Greenville to Illinois (average of $57). Flying from Greenville to Illinois in June is currently the most expensive (average of $161). 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 3 airlines flying from Greenville to Illinois

Discover the top 3 airlines that operate flights from Greenville to Illinois. 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$180Average$271FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$349FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$206Average$338FlexibilityNo cancel feeOn-time69%

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