$105 Find Cheap Flights from Brownsville to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brownsville to Illinois departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brownsville to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brownsville to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals from Brownsville to Illinois (BRO-USIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Brownsville to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Brownsville to Illinois

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Brownsville to Illinois.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
United Airlines Logo
12:13 pm - 7:55 pmBRO-ORD
7h 42m1 stop
United Airlines Logo
7:45 am - 1:41 pmORD-BRO
5h 56m1 stop
$244United Airlines
Find Deal
Tue, Apr 15 - Sat, Apr 19
American Airlines Logo
6:17 pm - 11:49 pmBRO-ORD
5h 32m1 stop
American Airlines Logo
4:45 pm - 10:49 pmORD-BRO
6h 04m1 stop
$269American Airlines
Find Deal
Tue, Apr 29 - Tue, May 6
American Airlines Logo
6:07 pm - 11:46 pmBRO-ORD
5h 39m1 stop
American Airlines Logo
1:23 pm - 6:06 pmORD-BRO
4h 43m1 stop
$279American Airlines
Find Deal
Mon, Sep 15 - Wed, Sep 17
United Airlines Logo
7:15 pm - 12:13 amBRO-ORD
4h 58m1 stop
United Airlines Logo
6:00 am - 11:27 amORD-BRO
5h 27m1 stop
$284United Airlines
Find Deal
Thu, May 22 - Mon, May 26
United Airlines Logo
5:17 pm - 12:13 amBRO-ORD
6h 56m1 stop
United Airlines Logo
2:26 pm - 7:40 pmORD-BRO
5h 14m1 stop
$289United Airlines
Find Deal
Sat, May 24 - Fri, May 30
American Airlines Logo
10:29 am - 6:35 pmBRO-ORD
8h 06m1 stop
American Airlines Logo
6:30 pm - 12:11 amORD-BRO
5h 41m1 stop
$299American Airlines
Find Deal
Tue, Jun 17 - Sun, Jun 29
American Airlines Logo
5:30 am - 10:45 amBRO-ORD
5h 15m1 stop
American Airlines Logo
5:00 am - 9:56 amORD-BRO
4h 56m1 stop
$318American Airlines
Find Deal
Tue, Jul 15 - Mon, Jul 21
United Airlines Logo
5:17 pm - 12:13 amBRO-ORD
6h 56m1 stop
United Airlines Logo
6:00 am - 11:27 amORD-BRO
5h 27m1 stop
$319United Airlines
Find Deal
Sat, May 24 - Sun, Jun 1
United Airlines Logo
12:12 pm - 7:15 pmBRO-ORD
7h 03m1 stop
United Airlines Logo
2:26 pm - 7:40 pmORD-BRO
5h 14m1 stop
$324United Airlines
Find Deal
Tue, May 20 - Fri, May 30
United Airlines Logo
2:11 pm - 7:15 pmBRO-ORD
5h 04m1 stop
United Airlines Logo
10:35 am - 5:44 pmORD-BRO
7h 09m1 stop
$349United Airlines
Find Deal
Tue, May 20 - Thu, Jun 5

KAYAK's insights & trends for Brownsville to Illinois flights

Get data-powered insights and trends into flights from Brownsville to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Brownsville to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $375 on average. Morning departures are around 5% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $394.

What’s the cheapest day of the week to fly from Brownsville to Illinois?

The average price of all round-trip flights from Brownsville to Illinois clicked on KAYAK for each day over the last 12 months.
For Brownsville to Illinois, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Illinois back to Brownsville, the best deals are generally found on Friday, with Sunday being the most expensive.

Good to know

Cheapest flight

$105
Flight from Brownsville to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Brownsville to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Brownsville to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Brownsville to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Brownsville to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Brownsville to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Brownsville to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Brownsville to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Brownsville to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Brownsville to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Brownsville to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Brownsville to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
8.0Crew
6.9Entertainment
7.5Boarding
6.5Food
7.2Comfort
Airline reviews

The plane was late and then sat on the runway for almost 45 minutes before taking off.

6.0 GoodMark, Mar 2025SAN - ORD
Read more American Airlines reviews

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

Everything was on time, we arrived early, everything worked well.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Seating was horrible. Small seats. Access to flight information and extras very iser unfriendly. Kept losing internet after paying for it. Staff in madison was as unprofessional and unhelpful.

Delayed due to no crew. On a major holiday travel day.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

Everything you need to know for your flight from Brownsville to Illinois

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.