Cheap flights from Houston George Bush Intcntl Airport to Illinois from $49
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Illinois departing on 7/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Spirit Airlines flights from Houston George Bush Intcntl Airport to Illinois
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Delta flights from Houston George Bush Intcntl Airport to Illinois
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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport 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 month to fly to Illinois?
The cheapest month to fly to Illinois from Houston George Bush Intcntl Airport is in September. Flight prices, which tend to average around $125, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $141.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Houston George Bush Intcntl Airport to Illinois is on a Friday when prices can be found for as low as $273. Flights from Houston George Bush Intcntl Airport to Illinois on a Sunday will generally be more expensive and average around $544. 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 evening. Flights from Houston George Bush Intcntl Airport to Illinois during this time can be as low as $181. Flights at noon are often more expensive with an average ticket price of $769.
What is the cheapest Houston George Bush Intcntl to Illinois flight route?
Fly from Houston George Bush Intcntl to Chicago O'Hare Intl for the best Houston George Bush Intcntl - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $219 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Houston George Bush Intcntl Airport for as low as $152 on momondo.
What cabin class options are available on Houston George Bush Intcntl to Illinois flights?
There are 4 cabin classes available to choose from on Houston George Bush Intcntl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Houston George Bush Intcntl to Illinois?
Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Houston George Bush Intcntl to Illinois
What airlines fly to Illinois?
Spirit Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Illinois from Houston George Bush Intcntl Airport according to our data. Spirit Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Houston George Bush Intcntl Airport to Illinois on average per day?
As of June 2025, 49 flights take off from Houston George Bush Intcntl Airport and land in Illinois each day. The most common flight departure time for this route is 6:00PM, with 45% of daily flights taking off at noon.
How many flights depart from Houston George Bush Intcntl Airport to Illinois on average per week?
348 flights are operational weekly from Houston George Bush Intcntl Airport to Illinois as of June 2025. The most popular departure day for this route is Thu, with 24% of flights per week taking off on this day.
Cheap Houston George Bush Intcntl Airport to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Illinois
When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Illinois?
Prices for flights from Houston George Bush Intcntl Airport to Illinois refresh daily.
How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Illinois?
There are 5 operators available for flights from Houston George Bush Intcntl Airport to Illinois as of June 2025.
How old do you have to be to fly from Houston George Bush Intcntl Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Houston George Bush Intcntl Airport to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Houston George Bush Intcntl Airport to Illinois is Airbus A321neo, representing 16.42% of all bookings. The subsequent popular models are Airbus A320neo at 14.22%, Boeing 737-900 at 12.37%, and Airbus A319 at 10.90%.
Best airlines flying from Houston George Bush Intcntl Airport to Illinois
Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $62 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $67 | Free Cancellation | Rating 6.3 8,089 reviews | |||
| PriceFrom $155 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $173 | Free Cancellation | Rating 7.4 8,838 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 8.0 7,964 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Houston to Illinois?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Houston.
Can I find flights from Houston to Illinois with flexible booking policies on momondo?
Yes. All flights to Illinois from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Houston to Illinois?
Once you have performed a search for Houston to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Houston to Illinois right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Houston to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.