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Illinois

$90+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 12/242:50 pmGSP - ORD
1 stop5h 02mUnited Airlines
Wed 12/317:50 amORD - GSP
Nonstop2h 06mUnited Airlines
Deal found 12/10$230
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/179:19 amGSP - ORD
Nonstop2h 14mUnited Airlines
Thu 1/157:10 amORD - GSP
Nonstop2h 06mUnited Airlines
Deal found 12/11$241
This Southwest deal was found by Cheapflights users on 12/10. 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 12/243:05 pmGSP - MDW
1 stop8h 05mSouthwest
Wed 12/315:35 amMDW - GSP
1 stop9h 30mSouthwest
Deal found 12/10$242
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/308:34 amGSP - ORD
Nonstop2h 21mUnited Airlines
Sun 1/47:50 amORD - GSP
Nonstop2h 06mUnited Airlines
Deal found 12/10$245
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/248:34 amGSP - ORD
Nonstop2h 21mUnited Airlines
Mon 12/297:50 amORD - GSP
Nonstop2h 06mUnited Airlines
Deal found 12/11$247
This Southwest deal was found by Cheapflights users on 12/10. 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 12/2510:35 amGSP - MDW
2 stops7h 00mSouthwest
Wed 12/315:35 amMDW - GSP
1 stop9h 30mSouthwest
Deal found 12/10$248
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/171:50 pmGSP - ORD
1 stop5h 12mAmerican Airlines
Thu 1/159:07 pmORD - GSP
Nonstop1h 52mAmerican Airlines
Deal found 12/11$251
This American Airlines deal was found by Cheapflights users on 12/10. 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 12/2311:31 amGSP - ORD
Nonstop2h 11mAmerican Airlines
Sat 1/38:26 pmORD - GSP
Nonstop2h 03mAmerican Airlines
Deal found 12/10$256
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/259:40 amGSP - ORD
1 stop5h 41mUnited Airlines
Wed 12/317:50 amORD - GSP
Nonstop2h 06mUnited Airlines
Deal found 12/10$257
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/3111:23 amORD - GSP
1 stop22h 30mMultiple Airlines
Deal found 12/10$259
This Delta deal was found by Cheapflights users on 12/10. 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.
Tue 12/237:59 pmGSP - ORD
1 stop5h 03mDelta
Sat 1/35:30 amORD - GSP
1 stop5h 28mDelta
Deal found 12/10$261
This American Airlines deal was found by Cheapflights users on 12/10. 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 12/255:39 amGSP - ORD
1 stop7h 20mAmerican Airlines
Wed 12/314:41 pmORD - GSP
1 stop7h 10mAmerican Airlines
Deal found 12/10$264

Find flight deals from Greenville to Illinois

Keep the following information in mind while searching for Greenville to Illinois flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(United Airlines)

One-way from

$90
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$272

Good round-trip deal

$316 or less

Good one-way deal

$223 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. 3% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 12, 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 2/20

10:00 am-2:20 pm

1 stop5h 20m

Chicago O'Hare Intl

Sun 2/22

7:10 am-10:06 am

Nonstop1h 56m

$219

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Wed 3/11

8:50 am-1:18 pm

1 stop5h 28m

Chicago O'Hare Intl

Sun 3/15

9:37 am-5:29 pm

1 stop6h 52m

$222

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 1/23

11:30 am-6:28 pm

1 stop7h 58m

Chicago O'Hare Intl

Tue 1/27

9:55 am-4:17 pm

1 stop5h 22m

$222

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Thu 1/22

7:20 am-12:46 pm

1 stop6h 26m

Chicago Midway

Sat 1/24

6:25 am-11:08 am

1 stop3h 43m

$222

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 1/23

7:20 am-12:46 pm

1 stop6h 26m

Chicago Midway

Tue 1/27

1:29 pm-6:04 pm

1 stop3h 35m

$222

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 4/24

6:45 am-11:56 am

1 stop6h 11m

Chicago Midway

Sat 4/25

4:30 pm-11:40 pm

1 stop6h 10m

$222

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Fri 3/6

7:40 pm-11:57 pm

1 stop5h 17m

Chicago O'Hare Intl

Sun 3/8

9:37 am-5:29 pm

1 stop6h 52m

$229

GreenvilleChicago

GSP - ORD

GSPORD

Greenville

Thu 1/8

7:20 am-1:08 pm

1 stop6h 48m

Chicago O'Hare Intl

Thu 1/15

9:35 am-5:12 pm

1 stop6h 37m

$229

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Fri 1/23

7:20 am-12:46 pm

1 stop6h 26m

Chicago Midway

Sun 1/25

6:00 am-11:03 am

1 stop4h 03m

$229

GreenvilleChicago

GSP - MDW

GSPMDW

Greenville

Thu 1/15

7:20 am-12:48 pm

1 stop6h 28m

Chicago Midway

Mon 1/19

6:14 pm-11:50 pm

1 stop4h 36m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 60 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, January is the cheapest month in which you can book a flight from Greenville to Illinois (average of $58). 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 December 12, 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 32% 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. Sunday 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 December 12, 2025.

The most flights from GSP to USIL are scheduled on a Thursday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 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 December 12, 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
7.9
Good
4,253 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

7.9

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 $219, United Airlines can have you in Illinois from Greenville in 5h 20m. There are 577 mi between Greenville and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 ($97), Delta ($107), and Southwest ($131).

  • 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 PSA Airlines (95%), Qatar Airways (94%) or Emirates (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 $355 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 $202.

  • 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, January is the cheapest month in which you can book a flight from Greenville to Illinois (average of $58). 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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Alternative routes for Greenville to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$180Average$271FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$349FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$202Average$332FlexibilityNo cancel feeOn-time69%

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