Houston to Chicago
IAHORD
Fly from Houston to Chicago starting at USD 49 with Frontier Airlines.
Best fare available on Jul 25, 2026.
Limited seats. Better plans. Book before it's gone.
Houston to Chicago cheapest flights this week
Houston to Chicago monthly flight fare trend
May
from USD 26
Jun
No flights
Jul
from USD 49
Aug
No flights
Sep
No flights
Oct
from USD 135
Airport Details
Origin
Houston
George Bush Intercontinental Houston Airport (IAH)
Houston, IAH
Zone
Chicago
Elev
97 ft
Destination
Chicago
Chicago O'Hare International Airport (ORD)
Chicago, ORD
Zone
Chicago
Elev
680 ft
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