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$108+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$218
(United Airlines)

One-way from

$108
(Delta)

Popular in

September

Cheapest in

April

Average price

$328

Good round-trip deal

$280 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Greenville-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Greenville-Chicago (CHI) flights.
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From Greenville to Illinois
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One-way flight from Greenville to Illinois
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Greenville to Illinois.
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Price to beat on a one-way flight from Greenville to Illinois.
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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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 7/252:52 pmGSP - ORD
1 stop7h 24mUnited Airlines
Sat 7/261:55 pmORD - GSP
Nonstop1h 59mUnited Airlines
Deal found 4/29$218
This Delta deal was found by Cheapflights users on 4/29. 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 6/127:00 amGSP - ORD
1 stop6h 55mDelta
Sat 6/141:35 pmORD - GSP
1 stop4h 06mDelta
Deal found 4/29$222
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.
Fri 7/251:59 pmGSP - MDW
1 stop5h 03mDelta
Sat 7/2612:38 pmMDW - GSP
1 stop5h 06mDelta
Deal found 4/28$222
This American Airlines deal was found by Cheapflights users on 4/30. 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 6/196:41 pmGSP - ORD
Nonstop2h 08mAmerican Airlines
Sat 6/218:13 amORD - GSP
Nonstop1h 50mAmerican Airlines
Deal found 4/30$233
This Southwest deal was found by Cheapflights users on 4/30. 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 8/227:40 amGSP - MDW
2 stops6h 30mSouthwest
Tue 8/2611:45 amMDW - GSP
1 stop7h 10mSouthwest
Deal found 4/30$244
This American Airlines deal was found by Cheapflights users on 4/29. 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 6/285:51 pmGSP - MLI
1 stop6h 18mAmerican Airlines
Sat 7/55:00 amMLI - GSP
1 stop4h 38mAmerican Airlines
Deal found 4/29$249
This Delta deal was found by Cheapflights users on 4/30. 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 8/135:45 amGSP - STL
1 stop5h 53mDelta
Tue 9/29:00 amSTL - GSP
1 stop3h 13mDelta
Deal found 4/30$257
This United Airlines deal was found by Cheapflights users on 4/30. 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 6/106:00 amGSP - STL
2 stops7h 20mUnited Airlines
Tue 6/175:27 pmSTL - GSP
1 stop4h 16mUnited Airlines
Deal found 4/30$262
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Mon 6/169:23 pmGSP - ORD
2 stops24h 00mMultiple Airlines
Thu 6/267:56 amORD - GSP
1 stop12h 28mMultiple Airlines
Deal found 4/29$272
This Southwest deal was found by Cheapflights users on 4/29. 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 5/68:10 amGSP - ORD
1 stop4h 40mSouthwest
Tue 5/61:50 pmORD - GSP
1 stop5h 20mSouthwest
Deal found 4/29$295
This Southwest deal was found by Cheapflights users on 4/30. 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 5/288:10 amGSP - STL
2 stops9h 15mSouthwest
Wed 6/46:00 amSTL - GSP
1 stop8h 05mSouthwest
Deal found 4/30$297
This American Airlines deal was found by Cheapflights users on 4/30. 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 7/126:09 pmGSP - PIA
1 stop7h 03mAmerican Airlines
Mon 7/145:00 amPIA - GSP
1 stop4h 43mAmerican Airlines
Deal found 4/30$324

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 May 1, 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

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 7/25

2:52 pm-9:16 pm

1 stop7h 24m

Chicago O'Hare Intl

Sat 7/26

1:55 pm-4:54 pm

Nonstop1h 59m

$218

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 6/12

5:30 am-8:39 am

1 stop4h 09m

Chicago O'Hare Intl

Sat 6/14

11:20 am-6:41 pm

1 stop6h 21m

$222

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 7/25

1:59 pm-6:02 pm

1 stop5h 03m

Chicago Midway

Sat 7/26

12:38 pm-6:44 pm

1 stop5h 06m

$222

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 6/19

6:41 pm-7:49 pm

Nonstop2h 08m

Chicago O'Hare Intl

Sat 6/21

8:13 am-11:03 am

Nonstop1h 50m

$233

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 8/22

7:40 am-1:10 pm

2 stops6h 30m

Chicago Midway

Tue 8/26

11:45 am-7:55 pm

1 stop7h 10m

$244

GreenvilleMoline

GSP - MLI

GSPMLI

Greenville

Sat 6/28

5:51 pm-11:09 pm

1 stop6h 18m

Moline Quad-City

Sat 7/5

5:00 am-10:38 am

1 stop4h 38m

$249

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Wed 8/13

5:45 am-10:38 am

1 stop5h 53m

Lambert-St Louis

Tue 9/2

9:00 am-1:13 pm

1 stop3h 13m

$257

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Tue 6/10

6:00 am-12:20 pm

2 stops7h 20m

Lambert-St Louis

Tue 6/17

5:27 pm-10:43 pm

1 stop4h 16m

$262

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Mon 6/16

9:23 pm-8:23 pm

2 stops24h 00m

Chicago O'Hare Intl

Thu 6/26

7:56 am-9:24 pm

1 stop12h 28m

$272

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Tue 6/17

7:20 am-11:50 am

1 stop5h 30m

Chicago O'Hare Intl

Fri 6/20

1:50 pm-10:00 pm

1 stop7h 10m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 29 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, August is the cheapest month in which you can book a flight from Greenville to Illinois (average of $245). Flying from Greenville to Illinois in March is currently the most expensive (average of $321). 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 May 1, 2025.

When flying from Greenville to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 May 1, 2025.

The most flights from GSP to USIL are scheduled on a Monday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 May 1, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Greenville to Illinois have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

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

    The cheapest airlines for a one-way flight from Greenville to Illinois are Delta ($108), Southwest ($115), and American Airlines ($169).

  • 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 Avianca (86%), SkyWest Airlines (86%) or Qatar Airways (84%) 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 $1,298 for a flight from Greenville to Illinois. The cheapest flight overall is $99 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, August is the cheapest month in which you can book a flight from Greenville to Illinois (average of $245). Flying from Greenville to Illinois in March is currently the most expensive (average of $321). 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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Alternative routes for Greenville to Illinois

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Top 4 airlines flying from Greenville to Illinois

Discover the top 4 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$180Average$327FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$209Average$355FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$239Average$316FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$304Average$397FlexibilityNo cancel feeOn-time63%

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