Cheap flights from Illinois to Houston from $45
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Houston departing on 5/21. 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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How to get the cheapest flight ticket from Illinois to Houston
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 Houston?
The month of August is, on average, the cheapest month to fly to Houston from Illinois, with most prices found around $152. The month of October is another great option to travel to Houston, with average flight prices from Illinois averaging around $164.
What is the cheapest day to depart on your flight to Houston?
On average, the least expensive day to fly to Houston from Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $401. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Sunday is $675.
What is the cheapest time of day to depart on your flight to Houston?
Our data shows that the cheapest Illinois to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $280. Try not to purchase tickets in the morning because they tend to be around $343. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Illinois to Houston flight route?
Fly from Chicago O'Hare Intl to Houston George Bush Intcntl for the best Illinois - Houston flight prices
How far in advance should I book a flight to Houston?
You are more likely to see cheaper flights to Houston from Illinois when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $212 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Illinois for as low as $152 on momondo.
What cabin class options are available on Illinois to Houston flights?
There are 4 cabin classes available to choose from on Illinois to Houston 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 Illinois to Houston?
Frontier, Spirit Airlines, and United Airlines are the most popular carriers operating from Illinois to Houston
What airlines fly to Houston?
Spirit Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Houston from Illinois according to our data. Spirit Airlines is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Houston. Keep in mind that there are 6 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Houston on average per day?
As of April 2025, 66 flights take off from Illinois and land in Houston each day. The most common flight departure time for this route is 8:00PM, with 36% of daily flights taking off in the evening.
How many flights depart from Illinois to Houston on average per week?
As of April 2025, 466 flights take off from Illinois and land in Houston each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.
Cheap Illinois to Houston flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Houston
When did momondo last update prices for flights from Illinois to Houston?
Prices for flights from Illinois to Houston were last updated today.
How many operators does momondo search for flights from Illinois to Houston?
The number of operators available for flights from Illinois to Houston is 6 as of April 2025.
How old do you have to be to fly from Illinois to Houston?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Houston.
What documentation or ID do you need to fly to Houston?
The travel and health documents required for your trip to Houston can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Illinois to Houston
Compare and see reviews for airlines that fly from Illinois to Houston with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $58 | Free Cancellation | Rating 5.9 3,283 reviews | |||
| PriceFrom $68 | Free Cancellation | Rating 6.3 7,940 reviews | |||
| PriceFrom $143 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $159 | Free Cancellation | Rating 7.4 8,684 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 8.0 4,286 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Houston?
It is quick and easy to find Illinois to Houston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Houston that suits you.
Can I find flights from Illinois to Houston with flexible booking policies on momondo?
Flights from Illinois to Houston 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 Illinois to Houston?
Once you have performed a search for Illinois to Houston 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 Illinois to Houston right now. Can momondo alert me if prices change?
Price alerts on flights to Houston from Illinois 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.