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$84+ Cheap flights from Illinois to Belize

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BZE
Aug 30 — Sep 61
Sat 8/30
Sat 9/6
1 adult, Economy
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Cheap flight deals from Illinois to Belize

Keep the following information in mind while searching for Illinois to Belize flight deals. Data was last updated August 25, 2025.

Round-trip from

$254
(American Airlines)

One-way from

$84
(Southwest)

Popular in

December

Cheapest in

April

Average price

$743
From Illinois to Belize
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One-way flight from Illinois to Belize
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Highest demand for flights based on searches. 3% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Illinois to Belize

Cheapest flights from Illinois to Belize
Explore the most affordable flight options available from Illinois to Belize. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 25, 2025.

This American Airlines deal was found by Cheapflights users on 8/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:11 amSTL - BZE
1 stop10h 09mAmerican Airlines
Fri 10/2412:50 pmBZE - STL
1 stop9h 28mAmerican Airlines
Deal found 8/24$254
This American Airlines deal was found by Cheapflights users on 8/23. 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 10/75:23 amSTL - BZE
1 stop8h 27mAmerican Airlines
Tue 10/141:50 pmBZE - STL
2 stops21h 16mAmerican Airlines
Deal found 8/23$258
This American Airlines deal was found by Cheapflights users on 8/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:09 pmSTL - BZE
1 stop22h 11mAmerican Airlines
Fri 10/2412:50 pmBZE - STL
1 stop9h 28mAmerican Airlines
Deal found 8/24$260
This American Airlines deal was found by Cheapflights users on 8/22. 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 10/277:54 pmSTL - BZE
2 stops17h 56mAmerican Airlines
Tue 11/44:21 pmBZE - STL
2 stops18h 16mAmerican Airlines
Deal found 8/22$266
This American Airlines deal was found by Cheapflights users on 8/23. 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 10/26:00 pmSTL - BZE
2 stops19h 32mAmerican Airlines
Thu 10/93:30 pmBZE - STL
1 stop7h 26mAmerican Airlines
Deal found 8/23$275
This Delta deal was found by Cheapflights users on 8/24. 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.
Sun 10/196:00 amSTL - BZE
1 stop6h 25mDelta
Thu 10/2312:40 pmBZE - STL
1 stop10h 01mDelta
Deal found 8/24$284
This Delta deal was found by Cheapflights users on 8/24. 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.
Sat 10/187:05 amSTL - BZE
1 stop5h 20mDelta
Fri 10/2412:40 pmBZE - STL
1 stop10h 01mDelta
Deal found 8/24$286
This Delta deal was found by Cheapflights users on 8/24. 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.
Sat 10/187:05 amSTL - BZE
1 stop5h 20mDelta
Sun 10/2612:40 pmBZE - STL
1 stop10h 01mDelta
Deal found 8/24$288
This American Airlines deal was found by Cheapflights users on 8/22. 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.
Fri 10/104:25 pmSTL - BZE
2 stops20h 25mAmerican Airlines
Mon 10/133:30 pmBZE - STL
2 stops17h 07mAmerican Airlines
Deal found 8/22$292
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/257:09 pmORD - BZE
1 stop23h 06mMultiple Airlines
Tue 9/305:32 pmBZE - ORD
2 stops40h 38mMultiple Airlines
Deal found 8/22$487
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Fri 9/266:30 amORD - BZE
1 stop11h 45mMultiple Airlines
Tue 9/305:32 pmBZE - ORD
2 stops40h 38mMultiple Airlines
Deal found 8/23$502
This Southwest deal was found by Cheapflights users on 8/22. 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 11/177:00 amMDW - BZE
1 stop7h 00mSouthwest
Thu 3/52:10 pmBZE - MDW
2 stops13h 55mSouthwest
Deal found 8/22$508

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Belize 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 August 25, 2025.
Use the filters below to find and compare flights from Illinois to Belize that are best for you.

Fly from

Illinois

Fly to

Belize

Route

Depart

Return

Price

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 10/20

5:11 am-2:20 pm

1 stop10h 09m

Belize City Philip S.W.Goldson

Fri 10/24

12:50 pm-11:18 pm

1 stop9h 28m

$254

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Tue 10/7

4:34 pm-12:50 pm

2 stops21h 16m

Belize City Philip S.W.Goldson

Tue 10/14

1:50 pm-12:06 pm

2 stops21h 16m

$258

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Sat 10/18

4:34 pm-11:50 am

2 stops20h 16m

Belize City Philip S.W.Goldson

Fri 10/24

12:50 pm-8:16 am

2 stops18h 26m

$258

St. LouisBelize City

STL - BZE

STLBZE

Lambert-St Louis

Mon 10/27

5:23 am-11:50 am

1 stop7h 27m

Belize City Philip S.W.Goldson

Tue 11/4

4:21 pm-8:57 am

2 stops16h 36m

$266

ChicagoBelize City

ORD - BZE

ORDBZE

Chicago O'Hare Intl

Sat 1/24

5:05 am-11:40 am

1 stop6h 35m

Belize City Philip S.W.Goldson

Sat 1/31

12:35 pm-9:00 pm

1 stop8h 25m

$335

ChicagoBelize City

ORD - BZE

ORDBZE

Chicago O'Hare Intl

Sat 2/7

5:05 am-11:40 am

1 stop6h 35m

Belize City Philip S.W.Goldson

Sat 2/14

12:35 pm-9:00 pm

1 stop8h 25m

$421

ChicagoBelize City

ORD - BZE

ORDBZE

Chicago O'Hare Intl

Mon 1/26

5:05 am-11:40 am

1 stop6h 35m

Belize City Philip S.W.Goldson

Fri 1/30

12:35 pm-9:00 pm

1 stop8h 25m

$427

ChicagoBelize City

ORD - BZE

ORDBZE

Chicago O'Hare Intl

Fri 2/13

5:05 am-11:40 am

1 stop6h 35m

Belize City Philip S.W.Goldson

Sat 2/21

12:35 pm-11:42 pm

1 stop11h 07m

$441

ChicagoBelize City

ORD - BZE

ORDBZE

Chicago O'Hare Intl

Sat 2/14

5:05 am-11:40 am

1 stop6h 35m

Belize City Philip S.W.Goldson

Sat 2/21

12:35 pm-11:42 pm

1 stop11h 07m

$451

ChicagoBelize City

ORD - BZE

ORDBZE

Chicago O'Hare Intl

Fri 9/26

6:30 am-5:15 pm

1 stop11h 45m

Belize City Philip S.W.Goldson

Tue 9/30

5:32 pm-11:10 am

2 stops40h 38m

$502

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/24

Showing 1-10 of 42 results
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Best time to book a flight from Illinois to Belize

Have a flexible travel schedule? Discover the best time to fly to Belize 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 Belize

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Belize (average of $363). Flying from Illinois to Belize in March is currently the most expensive (average of $653). 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.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Belize. 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 Belize?

    There are many flights that can get you from Illinois to Belize in 6h 35m. Fly via American Airlines, Spirit Airlines, or Southwest to get the fastest option. Airlines will cover a distance of 1688 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $84. American Airlines flights start at $90 while deals on Spirit Airlines start at $176 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Belize (average of $363). Flying from Illinois to Belize in March is currently the most expensive (average of $653). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Belize

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Belize

Discover the top 4 airlines that operate flights from Illinois to Belize. 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 August 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$329Average$703FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$345Average$752FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$578Average$703FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$738Average$1,003FlexibilityNo cancel feeOn-time69%

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