Cheap Flights from Houston to Northern Illinois

View €61 flight on Sat, 20 Sep 2025Opens in a new window

Popular airlines from Houston to Northern Illinois

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

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Cheap flights from Houston to Northern Illinois (HOU-CHI)

Prices were available within the past 7 days and start at €61 for one-way flights and €122 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 20 Sep - Tue, 23 Sep
IAH
Houston
ORD
Chicago
€122 Return, found 2 days ago
€122
Return
found 2 days ago
Select American Airlines flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €122 found 2 days ago
American Airlines
Sat, 13 Sep - Mon, 15 Sep
IAH
Houston
ORD
Chicago
€123 Return, found 1 day ago
€123
Return
found 1 day ago
Select American Airlines flight, departing Sat, 13 Sep from Houston to Chicago, returning Mon, 15 Sep, priced at €123 found 1 day ago
American Airlines
Sat, 20 Sep - Tue, 23 Sep
IAH
Houston
ORD
Chicago
€146 Return, found 2 days ago
€146
Return
found 2 days ago
Select American Airlines flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €146 found 2 days ago
American Airlines
Sat, 13 Sep - Mon, 15 Sep
IAH
Houston
ORD
Chicago
€148 Return, found 1 day ago
€148
Return
found 1 day ago
Select American Airlines flight, departing Sat, 13 Sep from Houston to Chicago, returning Mon, 15 Sep, priced at €148 found 1 day ago
United
Sat, 20 Sep - Tue, 23 Sep
IAH
Houston
ORD
Chicago
€152 Return, found 2 days ago
€152
Return
found 2 days ago
Select United flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €152 found 2 days ago
Delta
Sat, 20 Sep - Tue, 23 Sep
IAH
Houston
ORD
Chicago
€188 Return, found 2 days ago
€188
Return
found 2 days ago
Select Delta flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €188 found 2 days ago

Find the cheapest month to fly from Houston (HOU) to Moline (MLI)

February is typically the cheapest month to fly

From €171 - €404 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.