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$220+ Cheap flights from Illinois to Brownsville (BRO)

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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BRO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Brownsville

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

Round-trip from

$259
(American Airlines)

One-way from

$220
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$397
From Illinois to Brownsville South Padre Is. Intl
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One-way flight from Illinois to Brownsville South Padre Is. Intl
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Highest demand for flights based on searches. 5% potential increase in price ($20 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 June 2025
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Find flight deals from Illinois to Brownsville

Cheapest flights from Illinois to Brownsville
Explore the most affordable flight options available from Illinois to Brownsville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 9/25:52 pmSTL - BRO
1 stop5h 07mAmerican Airlines
Tue 9/93:04 pmBRO - STL
1 stop5h 11mAmerican Airlines
Deal found 6/11$259
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 8/15:00 amORD - BRO
1 stop4h 57mAmerican Airlines
Mon 8/47:26 pmBRO - ORD
1 stop5h 33mAmerican Airlines
Deal found 6/11$269
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/256:00 amORD - BRO
1 stop5h 27mUnited Airlines
Sun 6/295:10 amBRO - ORD
1 stop6h 01mUnited Airlines
Deal found 6/10$319
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 7/186:15 amSTL - BRO
1 stop5h 10mUnited Airlines
Sun 7/205:19 pmBRO - STL
1 stop4h 56mUnited Airlines
Deal found 6/10$399
This United Airlines deal was found by Cheapflights users on 6/9. 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 6/235:35 pmMLI - BRO
2 stops17h 52mUnited Airlines
Mon 6/305:19 pmBRO - MLI
2 stops17h 03mUnited Airlines
Deal found 6/9$883

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Brownsville 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 June 12, 2025.
Use the filters below to find and compare flights from Illinois to Brownsville that are best for you.

Fly from

Illinois

Fly to

Brownsville

Route

Depart

Return

Price

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Tue 9/2

5:52 pm-10:59 pm

1 stop5h 07m

Brownsville South Padre Is. Intl

Tue 9/9

3:04 pm-8:15 pm

1 stop5h 11m

$259

ChicagoBrownsville

ORD - BRO

ORDBRO

Chicago O'Hare Intl

Fri 8/1

5:00 am-9:57 am

1 stop4h 57m

Brownsville South Padre Is. Intl

Mon 8/4

7:26 pm-12:59 am

1 stop5h 33m

$269

ChicagoBrownsville

ORD - BRO

ORDBRO

Chicago O'Hare Intl

Wed 6/25

6:00 am-11:27 am

1 stop5h 27m

Brownsville South Padre Is. Intl

Sun 6/29

5:10 am-11:11 am

1 stop6h 01m

$319

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Fri 7/18

6:15 am-11:25 am

1 stop5h 10m

Brownsville South Padre Is. Intl

Sun 7/20

5:19 pm-10:15 pm

1 stop4h 56m

$399

MolineBrownsville

MLI - BRO

MLIBRO

Moline Quad-City

Mon 6/23

5:35 pm-11:27 am

2 stops17h 52m

Brownsville South Padre Is. Intl

Mon 6/30

5:19 pm-10:22 am

2 stops17h 03m

$883

ChicagoBrownsville

ORD - BRO

ORDBRO

Chicago O'Hare Intl

Fri 7/25

5:00 am-9:57 am

1 stop4h 57m

$220

St. LouisBrownsville

STL - BRO

STLBRO

Lambert-St Louis

Wed 7/9

7:38 pm-12:15 am

1 stop4h 37m

$224

ChicagoBrownsville

ORD - BRO

ORDBRO

Chicago O'Hare Intl

Fri 7/25

9:30 pm-4:05 pm

2 stops18h 35m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Illinois to Brownsville

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

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Brownsville (average of $328). Flying from Illinois to Brownsville in March is currently the most expensive (average of $468). 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 BRO?

Find hourly flight availability from Illinois to Brownsville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Brownsville as you normally would.

Rainfall in Brownsville by month

Plan your trip to Brownsville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Brownsville ranges from 1.1 - 5.9 inches per month. September is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Brownsville when rainfall is around 1.1 in.

Temperature in Brownsville by month

Plan your trip to Brownsville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Brownsville, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

Reviews of airlines servicing Brownsville

Get insights into the airlines that provide service to Brownsville. 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 Brownsville. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Illinois to Brownsville, 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
8,790 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.0

Crew

8.1

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
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.0

Crew

8.1

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
8,790 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.0

Crew

8.1

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 Illinois to Brownsville. 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 into for flights to Brownsville from Illinois?

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

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

    When deciding which route to take from Illinois to Brownsville consider Chicago O'Hare Intl - Brownsville South Padre Is. Intl, Lambert-St Louis - Brownsville South Padre Is. Intl or Dubuque - Brownsville South Padre Is. Intl as they are the most popular.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Brownsville (average of $328). Flying from Illinois to Brownsville in March is currently the most expensive (average of $468). 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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Top 2 airlines flying from Illinois to Brownsville

Discover the top 2 airlines that operate flights from Illinois to Brownsville. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$386FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$480FlexibilityNo cancel feeOn-time71%

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