Cheap flights from Brownsville to Illinois from $247
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 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Brownsville to Illinois
Cheap round-trip flights
Cheap one-way flights
American Airlines flights from Brownsville to Illinois
Our best American Airlines deals on Brownsville to Illinois flight tickets
United Airlines flights from Brownsville to Illinois
Our best United Airlines deals on Brownsville to Illinois flight tickets
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.
What is the cheapest airline that flies from Brownsville South Padre Is. Intl to Illinois?
American Airlines and United Airlines are the most popular carriers operating from Brownsville South Padre Is. Intl to Illinois
What airlines fly to Illinois?
American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Brownsville according to our data. American Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
Cheap Brownsville to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Brownsville to Illinois
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?
As of June 2025, there are 2 operators available to choose from 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 | ||
|---|---|---|---|---|---|
| PriceFrom $268 | Free Cancellation | Rating 7.4 8,838 reviews | |||
| PriceFrom $293 | Free Cancellation | Rating 7.2 10,000 reviews |
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.