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Biloxi

$109+ Cheap flights from Illinois to Biloxi, MS

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MSY
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from Illinois to Biloxi

Cheapest flights from Illinois to Biloxi
Explore the most affordable flight options available from Illinois to Biloxi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 28, 2026.

This Delta deal was found by Cheapflights users on 2/26. 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.
Sun 4/197:25 am
STL
-
GPT
1 stop6h 29m
Delta
Fri 4/245:55 pm
GPT
-
STL
1 stop5h 41m
Delta
Deal found 2/26$238
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:40 am
ORD
-
GPT
1 stop12h 00m
Multiple Airlines
Thu 5/77:50 pm
GPT
-
ORD
1 stop13h 15m
Multiple Airlines
Deal found 2/26$252
This Delta deal was found by Cheapflights users on 2/27. 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 9/35:30 pm
STL
-
GPT
1 stop4h 36m
Delta
Sun 9/66:00 pm
GPT
-
STL
1 stop5h 37m
Delta
Deal found 2/27$258
This Delta deal was found by Cheapflights users on 2/27. 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 3/105:21 pm
STL
-
GPT
1 stop4h 54m
Delta
Fri 3/135:57 pm
GPT
-
STL
1 stop6h 01m
Delta
Deal found 2/27$261
This Delta deal was found by Cheapflights users on 2/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:30 pm
STL
-
GPT
1 stop4h 36m
Delta
Mon 8/176:00 am
GPT
-
STL
1 stop6h 53m
Delta
Deal found 2/24$268
This Delta deal was found by Cheapflights users on 2/26. 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 4/811:10 am
ORD
-
GPT
1 stop6h 01m
Delta
Mon 4/135:55 pm
GPT
-
ORD
1 stop6h 04m
Delta
Deal found 2/26$269
This Delta deal was found by Cheapflights users on 2/26. 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.
Sun 4/197:25 am
STL
-
GPT
1 stop6h 29m
Delta
Thu 4/236:00 am
GPT
-
STL
1 stop4h 34m
Delta
Deal found 2/26$278
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Sat 5/162:20 pm
MDW
-
GPT
2 stops28h 50m
Multiple Airlines
Sun 5/317:50 pm
GPT
-
MDW
1 stop22h 46m
Multiple Airlines
Deal found 2/27$282
This American Airlines deal was found by Cheapflights users on 2/26. 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.
Sun 3/15:12 am
STL
-
GPT
1 stop5h 01m
American Airlines
Tue 3/315:00 am
GPT
-
STL
1 stop5h 59m
American Airlines
Deal found 2/26$283
This United Airlines deal was found by Cheapflights users on 2/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:50 am
STL
-
GPT
1 stop4h 36m
United Airlines
Fri 11/611:55 am
GPT
-
STL
1 stop4h 40m
United Airlines
Deal found 2/26$287
This Kiwi.com deal was found by Cheapflights users on 2/25. 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.
Thu 3/128:05 am
ORD
-
GPT
1 stop10h 35m
Multiple Airlines
Mon 3/166:54 pm
GPT
-
ORD
1 stop19h 04m
Multiple Airlines
Deal found 2/25$292
This American Airlines deal was found by Cheapflights users on 2/27. 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 3/34:13 pm
STL
-
GPT
1 stop6h 46m
American Airlines
Thu 3/510:43 am
GPT
-
STL
1 stop6h 30m
American Airlines
Deal found 2/27$297

Find flight deals from Illinois to Biloxi

Keep the following information in mind while searching for Illinois to Biloxi flight deals. Data was last updated February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238
(Delta)

One-way from

$109
(American Airlines)

Popular in

November

Cheapest in

August

Average price

$289
Provider with most accurate pricing for Chicago (CHI)-Gulfport Biloxi Regional flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Gulfport Biloxi Regional flights.
Search Deals
From Illinois to Biloxi
Search Deals
One-way flight from Illinois to Biloxi
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Biloxi 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 28, 2026.
Use the filters below to find and compare flights from Illinois to Biloxi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisGulfport

STL - GPT

STLGPT

Lambert-St Louis

Tue 3/10

5:21 pm-10:15 pm

1 stop4h 54m

Gulfport Biloxi Regional

Fri 3/13

5:57 pm-11:58 pm

1 stop6h 01m

$261

St. LouisGulfport

STL - GPT

STLGPT

Lambert-St Louis

Fri 8/14

5:30 pm-10:06 pm

1 stop4h 36m

Gulfport Biloxi Regional

Mon 8/17

6:00 am-12:53 pm

1 stop6h 53m

$268

ChicagoGulfport

ORD - GPT

ORDGPT

Chicago O'Hare Intl

Wed 4/8

11:10 am-5:11 pm

1 stop6h 01m

Gulfport Biloxi Regional

Mon 4/13

5:55 pm-11:59 pm

1 stop6h 04m

$269

St. LouisGulfport

STL - GPT

STLGPT

Lambert-St Louis

Sat 3/28

4:13 pm-10:59 pm

1 stop6h 46m

Gulfport Biloxi Regional

Sat 4/4

5:00 am-10:59 am

1 stop5h 59m

$297

ChicagoGulfport

MDW - GPT

MDWGPT

Chicago Midway

Wed 8/26

1:05 pm-5:17 pm

1 stop4h 12m

Gulfport Biloxi Regional

Sun 8/30

6:00 am-11:54 am

1 stop5h 54m

$304

ChicagoGulfport

MDW - GPT

MDWGPT

Chicago Midway

Wed 4/8

10:45 am-5:11 pm

1 stop6h 26m

Gulfport Biloxi Regional

Mon 4/13

5:55 pm-10:28 pm

1 stop4h 33m

$304

ChicagoGulfport

ORD - GPT

ORDGPT

Chicago O'Hare Intl

Wed 8/26

9:25 am-4:02 pm

1 stop6h 37m

Gulfport Biloxi Regional

Sat 8/29

5:15 pm-10:36 pm

1 stop5h 21m

$339

St. LouisGulfport

STL - GPT

STLGPT

Lambert-St Louis

Wed 8/26

6:15 am-1:26 pm

1 stop7h 11m

Gulfport Biloxi Regional

Sat 8/29

5:15 pm-10:06 pm

1 stop4h 51m

$348

St. LouisGulfport

STL - GPT

STLGPT

Lambert-St Louis

Fri 8/14

7:23 am-5:36 pm

2 stops10h 13m

Gulfport Biloxi Regional

Mon 8/17

6:30 pm-11:55 pm

1 stop5h 25m

$353

ChicagoGulfport

ORD - GPT

ORDGPT

Chicago O'Hare Intl

Fri 6/19

12:10 pm-5:17 pm

1 stop5h 07m

Gulfport Biloxi Regional

Mon 6/22

2:15 pm-9:16 pm

1 stop7h 01m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 52 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Biloxi

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Biloxi (average of $78). Flying from Illinois to Biloxi in July is currently the most expensive (average of $139). 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 IL to B1L?

Find hourly flight availability from Illinois to Biloxi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 28, 2026.

A simple way to save on the total cost of your ticket is to fly from Illinois to Biloxi at noon. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Biloxi. Price data was last updated on February 21, 2026.

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

Weekly flight availability from Illinois to Biloxi

Explore weekly flight availability from Illinois to Biloxi. 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 28, 2026.

The most flights from USIL to B1L are scheduled on a Friday (36 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Biloxi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Biloxi?

    For as low as $261, Delta can have you in Biloxi from Illinois in 4h 54m. There are 581 mi between Illinois and Biloxi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The most popular route from Illinois to Biloxi is Chicago O'Hare Intl - Gulfport Biloxi Regional. You may also consider Chicago Midway - Gulfport Biloxi Regional or Lambert-St Louis - Gulfport Biloxi Regional.

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

    No one likes to see their flight delayed. When booking a flight from Illinois to Biloxi consider choosing Frontier (100%), Volaris (100%) or United Airlines (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Biloxi?

    While on average a flight from Illinois to Biloxi is generally $672, our data shows the cheapest flight currently is $61. When looking at the most popular route, (Chicago O'Hare Intl - Gulfport Biloxi Regional), you can expect to pay $252 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Biloxi (average of $78). Flying from Illinois to Biloxi in July is currently the most expensive (average of $139). 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 Illinois to Biloxi

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Illinois to Biloxi

Discover the top 7 airlines that operate flights from Illinois to Biloxi. 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 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$175FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$82Average$190FlexibilityNo cancel feeOn-time88%
FrontierCheapest$98Average$232FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$358FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$154Average$345FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$159Average$421FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$168Average$390FlexibilityNo cancel feeOn-time71%

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