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Cheap flights from Brownsville to Illinois from $165

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Brownsville to Illinois departing on 11/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Brownsville to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:25 pm - 12:10 amBRO-ORD
6h 45m1 stop
United Airlines Logo
4:05 pm - 11:03 pmORD-BRO
6h 58m1 stop
$269United Airlines
Find Deal
Fri, Apr 24 - Mon, Apr 27
United Airlines Logo
5:15 pm - 12:15 amBRO-ORD
7h 00m1 stop
United Airlines Logo
6:00 am - 11:28 amORD-BRO
5h 28m1 stop
$319United Airlines
Find Deal
Tue, Nov 11 - Sat, Nov 15
United Airlines Logo
5:25 pm - 12:15 amBRO-ORD
6h 50m1 stop
United Airlines Logo
6:13 pm - 11:36 pmORD-BRO
5h 23m1 stop
$329United Airlines
Find Deal
Wed, Dec 3 - Fri, Dec 5
United Airlines Logo
5:25 pm - 12:15 amBRO-ORD
6h 50m1 stop
United Airlines Logo
6:00 am - 11:27 amORD-BRO
5h 27m1 stop
$349United Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 6
American Airlines Logo
5:42 pm - 11:37 pmBRO-ORD
5h 55m1 stop
American Airlines Logo
8:10 am - 2:18 pmORD-BRO
6h 08m1 stop
$374American Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 12
United Airlines Logo
5:15 pm - 12:15 amBRO-ORD
7h 00m1 stop
United Airlines Logo
10:35 am - 4:00 pmORD-BRO
5h 25m1 stop
$379United Airlines
Find Deal
Mon, Nov 10 - Fri, Nov 14
United Airlines Logo
5:25 pm - 10:56 pmBRO-ORD
5h 31m1 stop
United Airlines Logo
2:21 pm - 7:35 pmORD-BRO
5h 14m1 stop
$409United Airlines
Find Deal
Wed, Dec 3 - Thu, Dec 4
United Airlines Logo
5:25 pm - 10:56 pmBRO-ORD
5h 31m1 stop
United Airlines Logo
6:00 am - 11:27 amORD-BRO
5h 27m1 stop
$424United Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 6
United Airlines Logo
6:30 am - 6:55 pmBRO-ORD
12h 25m2 stops
United Airlines Logo
6:00 am - 11:27 amORD-BRO
5h 27m1 stop
$426United Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
American Airlines Logo
5:42 pm - 11:31 pmBRO-ORD
5h 49m1 stop
American Airlines Logo
8:50 am - 2:17 pmORD-BRO
5h 27m1 stop
$429American Airlines
Find Deal
Tue, Dec 2 - Sun, Dec 7

United Airlines flights from Brownsville to Illinois

Our best United Airlines deals on Brownsville to Illinois flight tickets
United Airlines
Apr 24
BRO5:25 pmBrownsville South Padre Is. Intl
6h 45m
1 stop
ORD12:10 amChicago O'Hare Intl
Apr 27
ORD4:05 pmChicago O'Hare Intl
6h 58m
1 stop
BRO11:03 pmBrownsville South Padre Is. Intl
$269
Find similar
United Airlines
Nov 11
BRO5:15 pmBrownsville South Padre Is. Intl
7h 00m
1 stop
ORD12:15 amChicago O'Hare Intl
Nov 15
ORD6:00 amChicago O'Hare Intl
5h 28m
1 stop
BRO11:28 amBrownsville South Padre Is. Intl
$319
Find similar
United Airlines
Dec 3
BRO5:25 pmBrownsville South Padre Is. Intl
6h 50m
1 stop
ORD12:15 amChicago O'Hare Intl
Dec 5
ORD6:13 pmChicago O'Hare Intl
5h 23m
1 stop
BRO11:36 pmBrownsville South Padre Is. Intl
$329
Find similar

American Airlines flights from Brownsville to Illinois

Our best American Airlines deals on Brownsville to Illinois flight tickets
American Airlines
Nov 8
BRO5:42 pmBrownsville South Padre Is. Intl
5h 55m
1 stop
ORD11:37 pmChicago O'Hare Intl
Nov 12
ORD8:10 amChicago O'Hare Intl
6h 08m
1 stop
BRO2:18 pmBrownsville South Padre Is. Intl
$374
Find similar
American Airlines
Dec 2
BRO5:42 pmBrownsville South Padre Is. Intl
5h 49m
1 stop
ORD11:31 pmChicago O'Hare Intl
Dec 7
ORD8:50 amChicago O'Hare Intl
5h 27m
1 stop
BRO2:17 pmBrownsville South Padre Is. Intl
$429
Find similar
American Airlines
Dec 5
BRO5:42 pmBrownsville South Padre Is. Intl
5h 53m
1 stop
ORD11:35 pmChicago O'Hare Intl
Dec 6
ORD12:04 pmChicago O'Hare Intl
10h 55m
2 stops
BRO10:59 pmBrownsville South Padre Is. Intl
$444
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Brownsville to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Fri 4/24

5:25 pm-12:10 am

1 stop6h 45m

Chicago O'Hare Intl

Mon 4/27

4:05 pm-11:03 pm

1 stop6h 58m

$269

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Tue 11/11

5:15 pm-12:15 am

1 stop7h 00m

Chicago O'Hare Intl

Sat 11/15

6:00 am-11:28 am

1 stop5h 28m

$319

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Wed 12/3

5:25 pm-12:15 am

1 stop6h 50m

Chicago O'Hare Intl

Fri 12/5

6:13 pm-11:36 pm

1 stop5h 23m

$329

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Thu 12/4

5:25 pm-12:15 am

1 stop6h 50m

Chicago O'Hare Intl

Sat 12/6

6:00 am-11:27 am

1 stop5h 27m

$349

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Sat 11/8

5:42 pm-11:37 pm

1 stop5h 55m

Chicago O'Hare Intl

Wed 11/12

8:10 am-2:18 pm

1 stop6h 08m

$374

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Mon 11/10

5:15 pm-12:15 am

1 stop7h 00m

Chicago O'Hare Intl

Fri 11/14

10:35 am-4:00 pm

1 stop5h 25m

$379

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Wed 12/3

5:25 pm-10:56 pm

1 stop5h 31m

Chicago O'Hare Intl

Thu 12/4

2:21 pm-7:35 pm

1 stop5h 14m

$409

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Tue 12/2

5:25 pm-10:56 pm

1 stop5h 31m

Chicago O'Hare Intl

Sat 12/6

6:00 am-11:27 am

1 stop5h 27m

$424

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Wed 12/3

6:30 am-6:55 pm

2 stops12h 25m

Chicago O'Hare Intl

Sat 12/6

6:00 am-11:27 am

1 stop5h 27m

$426

BrownsvilleChicago

BRO - ORD

BROORD

Brownsville South Padre Is. Intl

Tue 12/2

5:42 pm-11:31 pm

1 stop5h 49m

Chicago O'Hare Intl

Sun 12/7

8:50 am-2:17 pm

1 stop5h 27m

$429

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Brownsville to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Brownsville to Illinois is on a Wednesday when prices can be found for as low as $363. Flights from Brownsville to Illinois on a Thursday will generally be more expensive and average around $380. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Brownsville to Illinois during this time can be as low as $375. Flights in the afternoon are often more expensive with an average ticket price of $394.

Cheap Brownsville to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Brownsville to Illinois

Direct flights

None
There are no direct flights from Brownsville to Illinois. There are no popular flight routes from Brownsville to Illinois.
Search flight deals

  • When did momondo last update prices for flights from Brownsville South Padre Is. Intl Airport to Illinois?

    Prices for flights from Brownsville South Padre Is. Intl Airport to Illinois refresh daily.

  • How many operators does momondo search for flights from Brownsville South Padre Is. Intl Airport to Illinois?

  • How old do you have to be to fly from Brownsville South Padre Is. Intl Airport to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Brownsville South Padre Is. Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Brownsville to Illinois

Compare and see reviews for airlines that fly from Brownsville to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Brownsville to Illinois?

Finding the right flight to Illinois from Brownsville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Brownsville to Illinois with flexible booking policies on momondo?

Flights from Brownsville to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Brownsville to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Brownsville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Brownsville to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Brownsville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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