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$89+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(Mytrip)

One-way from

$89
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$334

Good round-trip deal

$354 or less

Good one-way deal

$174 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. 3% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/20. 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.
Thu 3/2010:03 amGSP - ORD
1 stop11h 39mMultiple Airlines
Thu 3/274:40 pmORD - GSP
1 stop27h 40mMultiple Airlines
Deal found 2/20$242
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 3/47:45 amGSP - ORD
Nonstop2h 05mAmerican Airlines
Sat 3/87:03 pmORD - GSP
Nonstop1h 51mAmerican Airlines
Deal found 2/20$243
This United Airlines deal was found by Cheapflights users on 2/20. 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 7/307:49 pmGSP - ORD
1 stop4h 27mUnited Airlines
Sun 8/38:45 amORD - GSP
Nonstop2h 09mUnited Airlines
Deal found 2/20$244
This Delta deal was found by Cheapflights users on 2/20. 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 3/217:00 amGSP - ORD
1 stop4h 10mDelta
Sat 3/2911:13 amORD - GSP
1 stop5h 20mDelta
Deal found 2/20$247
This Delta deal was found by Cheapflights users on 2/20. 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 3/157:30 amGSP - MDW
1 stop6h 02mDelta
Mon 3/172:55 pmMDW - GSP
1 stop6h 00mDelta
Deal found 2/20$251
This United Airlines deal was found by Cheapflights users on 2/20. 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 5/66:30 amGSP - PIA
1 stop4h 42mUnited Airlines
Wed 5/145:25 pmPIA - GSP
1 stop4h 20mUnited Airlines
Deal found 2/20$270
This Southwest deal was found by Cheapflights users on 2/20. 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 3/2112:00 pmGSP - ORD
2 stops10h 30mSouthwest
Sat 3/294:00 pmORD - GSP
1 stop5h 20mSouthwest
Deal found 2/20$276
This Southwest deal was found by Cheapflights users on 2/19. 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.
Mon 3/2412:00 pmGSP - STL
1 stop3h 35mSouthwest
Tue 4/12:25 pmSTL - GSP
1 stop5h 50mSouthwest
Deal found 2/19$287
This United Airlines deal was found by Cheapflights users on 2/20. 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 4/36:00 amGSP - STL
2 stops9h 42mUnited Airlines
Mon 4/73:40 pmSTL - GSP
1 stop5h 57mUnited Airlines
Deal found 2/20$293
This Southwest deal was found by Cheapflights users on 2/20. 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.
Thu 3/2712:00 pmGSP - MDW
1 stop3h 55mSouthwest
Sun 3/307:20 amMDW - GSP
1 stop3h 35mSouthwest
Deal found 2/20$326
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Fri 3/73:55 pmGSP - STL
1 stop18h 14mMultiple Airlines
Sun 3/95:38 pmSTL - GSP
2 stops21h 15mMultiple Airlines
Deal found 2/19$335
This American Airlines deal was found by Cheapflights users on 2/20. 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 2/224:15 pmGSP - PIA
1 stop6h 06mAmerican Airlines
Wed 2/264:23 pmPIA - GSP
1 stop6h 18mAmerican Airlines
Deal found 2/20$349

Find flights from Greenville to Illinois within your budget

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 February 20, 2025.

Fly from

Greenville

Fly to

Illinois

Route

Depart

Return

Price

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 3/20

10:03 am-8:42 pm

1 stop11h 39m

Chicago O'Hare Intl

Thu 3/27

4:40 pm-9:20 pm

1 stop27h 40m

$242

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Tue 3/4

7:45 am-8:50 am

Nonstop2h 05m

Chicago O'Hare Intl

Wed 3/12

7:00 pm-9:51 pm

Nonstop1h 51m

$243

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Wed 7/30

7:49 pm-11:16 pm

1 stop4h 27m

Chicago O'Hare Intl

Sun 8/3

8:45 am-11:54 am

Nonstop2h 09m

$244

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 3/21

7:00 am-10:10 am

1 stop4h 10m

Chicago O'Hare Intl

Sat 3/29

11:13 am-5:33 pm

1 stop5h 20m

$247

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Sat 3/15

7:30 am-12:32 pm

1 stop6h 02m

Chicago Midway

Mon 3/17

2:55 pm-9:55 pm

1 stop6h 00m

$251

GreenvillePeoria

GSP - PIA

GSPPIA

Greenville

Tue 5/6

6:30 am-10:12 am

1 stop4h 42m

Greater Peoria

Wed 5/14

5:25 pm-10:45 pm

1 stop4h 20m

$270

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 3/21

12:00 pm-9:30 pm

2 stops10h 30m

Chicago O'Hare Intl

Sat 3/29

4:00 pm-10:20 pm

1 stop5h 20m

$276

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Mon 3/24

12:00 pm-2:35 pm

1 stop3h 35m

Lambert-St Louis

Tue 4/1

2:25 pm-9:15 pm

1 stop5h 50m

$287

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Thu 4/3

6:00 am-2:42 pm

2 stops9h 42m

Lambert-St Louis

Mon 4/7

3:40 pm-10:37 pm

1 stop5h 57m

$293

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Thu 3/27

12:00 pm-2:55 pm

1 stop3h 55m

Chicago Midway

Sun 3/30

7:20 am-11:55 am

1 stop3h 35m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 36 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.

Travel insights for flights from Greenville to Illinois

Get recent, data-driven insights about flights from Greenville to Illinois including ideal travel times, pricing trends, and more.

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 February 20, 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 February 20, 2025.

The most flights from GSP to USIL are scheduled on a Thursday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 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 February 20, 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
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 American Airlines ($110), Delta ($120), and Southwest ($125).

  • 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 Republic Airways (92%), Qatar Airways (91%) or Envoy Air (91%) 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 $989 for a flight from Greenville to Illinois. The cheapest flight overall is $109 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.

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$383FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$355FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$241Average$332FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$304Average$402FlexibilityNo cancel feeOn-time63%
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