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$290+ 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — ORD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$348
(United Airlines)

One-way from

$290
(United Airlines)
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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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 July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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 8/145:19 pmBRO - ORD
1 stop6h 56mUnited Airlines
Mon 8/186:25 pmORD - BRO
1 stop5h 08mUnited Airlines
Deal found 7/30$348

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 July 31, 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

Thu 8/14

5:19 pm-12:15 am

1 stop6h 56m

Chicago O'Hare Intl

Mon 8/18

6:25 pm-11:33 pm

1 stop5h 08m

$348

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Sat 11/29

9:30 pm-2:27 am

1 stop4h 57m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 31, 2025.
Read through reviews of airlines operating flights from Brownsville to Illinois, such as United 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
8,900 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

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
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

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.

  • 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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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$293Average$367FlexibilityNo cancel feeOn-time71%

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