Flights from Houston to Illinois

Flight deals from Houston to Illinois

Looking for a cheap last-minute deal or the best return flight from Houston to Illinois? If you want to travel next month, return fares start from 627 SEK. Find the lowest prices on one-way and return tickets right here.

Flying from Houston to Illinois

Arm yourself with these facts on the fly.
Cheapest flight found627 SEK
Cheapest month to flyMay
Average flight time2 hrs, 39 mins
Cheapest airport to fly fromHouston George Bush Intercntl.
Most popular airlineAmerican Airlines

Frequently asked questions

We looked at all of the upcoming return flights from Houston to Illinois we could find over the next 12 months. It looks like 627 SEK is the best price. This is good, compared to the average Illinois ticket price of 2.639 SEK.
The cheapest month to fly from Houston to Greater Peoria Airport is usually August. The cheapest month to fly from Houston to Moline Airport is usually May. The cheapest month to fly from Houston to Marion Airport is usually May. And the cheapest month to fly from Houston to Champaign Airport is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Illinois on Saturday, 16 May 2026.
Houston George Bush Intercntl. Airport offers direct flights to Illinois.
If you're flying from Houston, the cheapest city in Illinois to fly into is Chicago. The cheapest airport serving Chicago at the moment is Chicago O'Hare International.
The average flight time between Houston and Illinois is 2 hours and 38 minutes.