$172 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 4/14. 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
1 adult, Economy, 0 bags

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.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Brownsville to Illinois Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Brownsville to Illinois

Wed, May 20 - Sat, Jun 6
United Airlines Logo
5:17 pm - 12:45 am
BRO
-
ORD
7h 28m
1 stop
United Airlines Logo
5:30 am - 11:26 am
ORD
-
BRO
5h 56m
1 stop
$331United Airlines
Sat, May 2 - Mon, May 4
American Airlines Logo
5:40 am - 11:21 am
BRO
-
ORD
5h 41m
1 stop
American Airlines Logo
5:00 am - 10:12 am
ORD
-
BRO
5h 12m
1 stop
$334American Airlines
Wed, Apr 15 - Sun, Apr 19
United Airlines Logo
5:25 pm - 12:45 am
BRO
-
ORD
7h 20m
1 stop
United Airlines Logo
5:48 am - 11:19 am
ORD
-
BRO
5h 31m
1 stop
$337United Airlines
Thu, Sep 3 - Tue, Sep 8
United Airlines Logo
4:39 pm - 12:48 am
BRO
-
ORD
8h 09m
1 stop
United Airlines Logo
4:05 pm - 9:55 pm
ORD
-
BRO
5h 50m
1 stop
$377United Airlines
Thu, May 21 - Tue, May 26
American Airlines Logo
6:42 pm - 12:42 am
BRO
-
ORD
6h 00m
1 stop
American Airlines Logo
5:00 am - 10:14 am
ORD
-
BRO
5h 14m
1 stop
$386American Airlines
Wed, Apr 29 - Sat, May 2
United Airlines Logo
5:25 pm - 12:45 am
BRO
-
ORD
7h 20m
1 stop
United Airlines Logo
12:40 pm - 6:28 pm
ORD
-
BRO
5h 48m
1 stop
$421United Airlines
Wed, Apr 29 - Sat, May 2
United Airlines Logo
12:00 pm - 8:15 pm
BRO
-
ORD
8h 15m
1 stop
United Airlines Logo
10:30 am - 6:28 pm
ORD
-
BRO
7h 58m
1 stop
$424United Airlines
Thu, Jun 11 - Sun, Jun 14
United Airlines Logo
4:44 pm - 12:45 am
BRO
-
ORD
8h 01m
1 stop
United Airlines Logo
5:30 am - 11:26 am
ORD
-
BRO
5h 56m
1 stop
$427United Airlines
Mon, Jun 1 - Sun, Jun 7
United Airlines Logo
4:44 pm - 12:45 am
BRO
-
ORD
8h 01m
1 stop
United Airlines Logo
6:30 am - 11:26 am
ORD
-
BRO
4h 56m
1 stop
$429United Airlines
Thu, May 21 - Mon, May 25
American Airlines Logo
6:42 pm - 12:42 am
BRO
-
ORD
6h 00m
1 stop
American Airlines Logo
5:00 am - 10:14 am
ORD
-
BRO
5h 14m
1 stop
$441American Airlines
Booking Insights

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 month to fly from Brownsville to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Brownsville to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Brownsville to Illinois is July, when tickets cost $268 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $578 and $483 respectively.

Good to know

Low seasonDecember
Cheapest flight$172
Best time to beat the crowds but there is an average 39% increase in price.
Most popular time to fly and prices are also 36% lower on average.
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.

Reviews of the top airlines 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.
7.4
United AirlinesOverall score based on 9538 reviews
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

2.0 MediocreDr. Joseph, Apr 2026
ATL - ORD
Read more United Airlines reviews

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Delays with no explanation. It could have been handled better.

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

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

Information on your arrival and departure airports