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$373+ Cheap flights from Brownsville (BRO) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — ORD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Brownsville to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Brownsville (BRO) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$373
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$306
Provider with most accurate pricing for Brownsville South Padre Is. Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Brownsville South Padre Is. Intl-Chicago (CHI) flights.
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From Brownsville South Padre Is. Intl to Illinois
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Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 30, 2025.

This American Airlines deal was found by Cheapflights users on 1/29. 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 3/146:13 pmBRO - ORD
1 stop6h 05mAmerican Airlines
Mon 3/175:00 amORD - BRO
1 stop5h 10mAmerican Airlines
Deal found 1/29$373
This United Airlines deal was found by Cheapflights users on 1/29. 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 5/209:35 amBRO - ORD
1 stop11h 55mUnited Airlines
Wed 5/289:21 amORD - BRO
1 stop6h 17mUnited Airlines
Deal found 1/29$512

Find flights from Brownsville to Illinois within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Fri 3/14

6:13 pm-12:18 am

1 stop6h 05m

Chicago O'Hare Intl

Mon 3/17

5:00 am-10:10 am

1 stop5h 10m

$373

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Tue 5/20

9:35 am-9:30 pm

1 stop11h 55m

Chicago O'Hare Intl

Wed 5/28

9:21 am-3:38 pm

1 stop6h 17m

$512

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

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.

Travel insights for flights from Brownsville to Illinois

Get recent, data-driven insights about flights from Brownsville to Illinois including ideal travel times, pricing trends, and more.

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 $325). 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 January 30, 2025.
United Airlines
7.4
Good
8,906 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20

8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
8,906 reviews
United Airlines
7.4
Good
8,906 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20

8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,906 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20

8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

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 $325). 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.

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Alternative routes for Brownsville to Illinois

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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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$433FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$293Average$373FlexibilityNo cancel feeOn-time71%
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