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$190+ Cheap flights from Brownsville (BRO) 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — ORD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Brownsville to Illinois

Keep the following information in mind while searching for Brownsville to Illinois flight deals. Data was last updated September 15, 2025.

Round-trip from

$269
(United Airlines)

One-way from

$190
(American Airlines)

Popular in

October

Cheapest in

July

Average price

$293
From Brownsville South Padre Is. Intl to Illinois
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One-way flight from Brownsville South Padre Is. Intl to Illinois
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Brownsville to Illinois

Cheapest flights from Brownsville to Illinois
Explore the most affordable flight options available from Brownsville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/295:15 pmBRO - ORD
1 stop7h 00mUnited Airlines
Tue 11/45:10 pmORD - BRO
1 stop6h 26mUnited Airlines
Deal found 9/15$269
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/305:26 amBRO - ORD
1 stop5h 34mAmerican Airlines
Sat 10/45:16 pmORD - BRO
1 stop5h 31mAmerican Airlines
Deal found 9/15$319
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/55:15 pmBRO - ORD
1 stop7h 00mUnited Airlines
Sun 11/96:00 amORD - BRO
1 stop5h 28mUnited Airlines
Deal found 9/14$320
This American Airlines deal was found by Cheapflights users on 9/14. 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 11/52:48 pmBRO - ORD
1 stop7h 32mAmerican Airlines
Sun 11/97:25 amORD - BRO
1 stop6h 52mAmerican Airlines
Deal found 9/14$324
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/16:39 pmBRO - ORD
1 stop5h 20mAmerican Airlines
Sat 10/44:18 pmORD - BRO
1 stop6h 29mAmerican Airlines
Deal found 9/13$374
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 9/2912:10 pmBRO - ORD
1 stop7h 30mUnited Airlines
Fri 10/36:00 amORD - BRO
1 stop5h 20mUnited Airlines
Deal found 9/15$379
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/25:15 pmBRO - ORD
1 stop5h 22mUnited Airlines
Sun 10/56:00 amORD - BRO
1 stop5h 20mUnited Airlines
Deal found 9/15$399
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 9/277:00 amBRO - ORD
1 stop5h 20mUnited Airlines
Sat 10/42:20 pmORD - BRO
1 stop6h 59mUnited Airlines
Deal found 9/15$429
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/125:15 pmBRO - ORD
1 stop6h 59mUnited Airlines
Sun 10/196:00 amORD - BRO
1 stop5h 20mUnited Airlines
Deal found 9/14$439
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 9/195:15 pmBRO - ORD
1 stop7h 00mUnited Airlines
Sun 9/216:00 amORD - BRO
1 stop5h 21mUnited Airlines
Deal found 9/14$453
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/309:30 amBRO - ORD
1 stop5h 19mUnited Airlines
Sat 10/48:50 amORD - BRO
2 stops10h 46mUnited Airlines
Deal found 9/15$474

Cheapflights Fare Finder

 
Customize your flight search to find flights from Brownsville 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 September 15, 2025.
Use the filters below to find and compare flights from Brownsville to Illinois that are best for you.

Fly from

Brownsville

Fly to

Illinois

Route

Depart

Return

Price

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Wed 10/29

5:15 pm-11:10 pm

1 stop5h 55m

Chicago O'Hare Intl

Tue 11/4

5:10 pm-11:36 pm

1 stop6h 26m

$269

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Tue 10/28

5:38 am-11:37 am

1 stop5h 59m

Chicago O'Hare Intl

Wed 11/5

5:10 pm-11:04 pm

1 stop5h 54m

$269

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Thu 10/23

5:15 pm-12:14 am

1 stop6h 59m

Chicago O'Hare Intl

Sun 10/26

6:00 am-11:28 am

1 stop5h 28m

$319

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Wed 11/5

5:15 pm-12:15 am

1 stop7h 00m

Chicago O'Hare Intl

Sun 11/9

6:00 am-11:28 am

1 stop5h 28m

$320

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Wed 11/5

2:48 pm-10:20 pm

1 stop7h 32m

Chicago O'Hare Intl

Sun 11/9

7:25 am-2:17 pm

1 stop6h 52m

$324

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Mon 9/29

12:10 pm-7:40 pm

1 stop7h 30m

Chicago O'Hare Intl

Fri 10/3

6:00 am-11:20 am

1 stop5h 20m

$379

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Thu 10/2

7:15 am-12:20 pm

1 stop5h 05m

Chicago O'Hare Intl

Sun 10/5

6:00 am-11:20 am

1 stop5h 20m

$399

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Sat 9/27

7:00 am-12:20 pm

1 stop5h 20m

Chicago O'Hare Intl

Sat 10/4

2:20 pm-9:19 pm

1 stop6h 59m

$429

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Sun 10/12

5:15 pm-12:14 am

1 stop6h 59m

Chicago O'Hare Intl

Sun 10/19

6:00 am-11:20 am

1 stop5h 20m

$439

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Fri 10/10

7:15 am-9:53 am

2 stops26h 38m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 11 results
1
2

Best time to book a flight from Brownsville to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Brownsville to Illinois (average of $245). Flying from Brownsville 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.

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 September 15, 2025.
Read through reviews of airlines operating flights from Brownsville to Illinois, such as United Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

    For a flight from Brownsville to Illinois, you will be flying from South Padre Is. Intl. Brownsville South Padre Is. Intl (BRO) is just 4.5 mi from the center of the city.

  • How long is the flight from Brownsville to Illinois?

    Airlines like United Airlines and American Airlines fly from Brownsville to Illinois in about 5h 55m. The time it takes to get you to your destination can typically vary by up to 04m. There are 1235 mi between Brownsville and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Brownsville to Illinois (average of $245). Flying from Brownsville 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.

See more FAQs

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Alternative routes for Brownsville to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Brownsville to Illinois

Discover the top 2 airlines that operate flights from Brownsville 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$361FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$293Average$358FlexibilityNo cancel feeOn-time71%

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