Cheap Flights from Houston to Northern Illinois

View €68 flight on Wed, 17 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 €68 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 6 days ago
€122
Return
found 6 days ago
Select American Airlines flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €122 found 6 days ago
American Airlines
Sat, 20 Sep - Tue, 23 Sep
IAH
Houston
ORD
Chicago
€146 Return, found 6 days ago
€146
Return
found 6 days ago
Select American Airlines flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €146 found 6 days ago
American Airlines
Sun, 21 Sep - Sun, 28 Sep
IAH
Houston
ORD
Chicago
€151 Return, found 5 days ago
€151
Return
found 5 days ago
Select American Airlines flight, departing Sun, 21 Sep from Houston to Chicago, returning Sun, 28 Sep, priced at €151 found 5 days ago
United
Sat, 20 Sep - Tue, 23 Sep
IAH
Houston
ORD
Chicago
€152 Return, found 6 days ago
€152
Return
found 6 days ago
Select United flight, departing Sat, 20 Sep from Houston to Chicago, returning Tue, 23 Sep, priced at €152 found 6 days ago
American Airlines
Thu, 9 Oct - Sat, 18 Oct
IAH
Houston
ORD
Chicago
€153 Return, found 2 days ago
€153
Return
found 2 days ago
Select American Airlines flight, departing Thu, 9 Oct from Houston to Chicago, returning Sat, 18 Oct, priced at €153 found 2 days ago
Delta
Sat, 13 Sep - Mon, 15 Sep
IAH
Houston
ORD
Chicago
€186 Return, found 3 days ago
€186
Return
found 3 days ago
Select Delta flight, departing Sat, 13 Sep from Houston to Chicago, returning Mon, 15 Sep, priced at €186 found 3 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.