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$110+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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Cheap flight deals from Greenville to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 16, 2025.

Round-trip from

$249
(American Airlines)

One-way from

$110
(American Airlines)
From Greenville to Illinois
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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 January 16, 2025.

This American Airlines deal was found by Cheapflights users on 1/16. 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.
Mon 2/246:31 pmGSP - PIA
1 stop4h 38mAmerican Airlines
Tue 4/84:28 pmPIA - GSP
1 stop6h 11mAmerican Airlines
Deal found 1/16$249
This Mytrip deal was found by Cheapflights users on 1/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2310:03 amGSP - ORD
2 stops14h 29mMultiple Airlines
Thu 1/307:26 amORD - GSP
1 stop5h 28mMultiple Airlines
Deal found 1/16$272
This Delta deal was found by Cheapflights users on 1/15. 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.
Sat 2/227:00 amGSP - ORD
1 stop7h 18mDelta
Sat 3/12:55 pmORD - GSP
1 stop4h 30mDelta
Deal found 1/15$274
This Delta deal was found by Cheapflights users on 1/15. 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.
Wed 2/197:14 amGSP - MDW
1 stop3h 58mDelta
Mon 2/242:08 pmMDW - GSP
1 stop6h 51mDelta
Deal found 1/15$274
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/610:35 amGSP - ORD
Nonstop2h 19mUnited Airlines
Fri 2/76:35 pmORD - GSP
Nonstop2h 09mUnited Airlines
Deal found 1/15$279
This Southwest deal was found by Cheapflights users on 1/16. 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.
Fri 2/1412:10 pmGSP - MDW
2 stops9h 05mSouthwest
Sat 2/158:50 amMDW - GSP
2 stops8h 50mSouthwest
Deal found 1/16$279
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/187:45 amGSP - ORD
Nonstop2h 05mAmerican Airlines
Thu 2/206:55 pmORD - GSP
Nonstop2h 06mAmerican Airlines
Deal found 1/15$284
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:14 amGSP - STL
1 stop5h 32mDelta
Sat 2/2210:59 amSTL - GSP
1 stop3h 59mDelta
Deal found 1/16$287
This Southwest deal was found by Cheapflights users on 1/16. 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.
Fri 3/147:30 amGSP - ORD
1 stop6h 35mSouthwest
Wed 3/194:00 pmORD - GSP
1 stop4h 15mSouthwest
Deal found 1/16$298
This United Airlines deal was found by Cheapflights users on 1/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/14:51 pmGSP - MLI
1 stop5h 18mUnited Airlines
Wed 2/53:59 pmMLI - GSP
1 stop4h 45mUnited Airlines
Deal found 1/16$299
This United Airlines deal was found by Cheapflights users on 1/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/16:30 amGSP - DEC
2 stops9h 07mUnited Airlines
Wed 2/53:12 pmDEC - GSP
1 stop5h 32mUnited Airlines
Deal found 1/16$304
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2511:54 amGSP - MLI
1 stop5h 31mDelta
Mon 1/275:05 pmMLI - GSP
1 stop3h 33mDelta
Deal found 1/16$319

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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

GreenvillePeoria

GSP - PIA

GSPPIA

Greenville

Mon 2/24

6:31 pm-10:09 pm

1 stop4h 38m

Greater Peoria

Tue 4/8

4:28 pm-11:39 pm

1 stop6h 11m

$249

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 2/6

10:07 pm-10:17 am

2 stops13h 10m

Chicago O'Hare Intl

Sat 2/8

5:35 am-9:28 am

2 stops26h 53m

$273

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Sat 2/22

7:00 am-1:18 pm

1 stop7h 18m

Chicago O'Hare Intl

Mon 2/24

4:58 pm-9:59 pm

1 stop4h 01m

$274

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Wed 2/19

7:14 am-10:12 am

1 stop3h 58m

Chicago Midway

Mon 2/24

2:08 pm-9:59 pm

1 stop6h 51m

$274

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 2/6

10:35 am-11:54 am

Nonstop2h 19m

Chicago O'Hare Intl

Fri 2/7

6:35 pm-9:44 pm

Nonstop2h 09m

$279

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 2/14

12:10 pm-8:15 pm

2 stops9h 05m

Chicago Midway

Sat 2/15

8:50 am-6:40 pm

2 stops8h 50m

$279

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Tue 2/18

7:45 am-8:50 am

Nonstop2h 05m

Chicago O'Hare Intl

Thu 2/20

6:55 pm-10:01 pm

Nonstop2h 06m

$284

GreenvilleSt. Louis

GSP - STL

GSPSTL

Greenville

Wed 2/19

10:07 am-3:34 pm

1 stop6h 27m

Lambert-St Louis

Tue 2/25

4:40 pm-11:49 pm

1 stop6h 09m

$287

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 3/14

7:30 am-1:05 pm

1 stop6h 35m

Chicago O'Hare Intl

Wed 3/19

4:00 pm-9:15 pm

1 stop4h 15m

$298

GreenvilleMoline

GSP - MLI

GSPMLI

Greenville

Sat 2/1

4:51 pm-9:09 pm

1 stop5h 18m

Moline Quad-City

Wed 2/5

3:59 pm-9:44 pm

1 stop4h 45m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 31 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 $320). 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 January 16, 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 January 16, 2025.

The most flights from GSP to USIL are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 January 16, 2025.
See what other customers who have flown with Delta, United Airlines and American 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
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 ($120).

  • 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 (87%), Republic Airways (87%) or Qatar Airways (87%) 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 $1,262 for a flight from Greenville to Illinois. The cheapest flight overall is $139 while the most popular route, (Greenville - Chicago O'Hare Intl) is currently priced at $219.

  • 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 $320). 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 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$379FlexibilityNo cancel feeOn-time71%
DeltaCheapest$217Average$355FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$329FlexibilityNo cancel feeOn-time69%
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