Cheap flights from Detroit to Southwest Illinois

View AU$94 flight on Thu, 14 Aug. 2025Opens in a new window

Popular airlines from Detroit to Southwest Illinois

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Detroit (DTT) to Southwest Illinois (STL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 14 Aug. - Sun, 17 Aug.
DTW
Detroit
STL
St. Louis
AU$188 Return, found 6 days ago
AU$188
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Aug. from Detroit to St. Louis, returning Sun, 17 Aug., priced at AU$188 found 6 days ago
Delta
Fri, 15 Aug. - Fri, 22 Aug.
DTW
Detroit
STL
St. Louis
AU$228 Return, found 6 days ago
AU$228
Return
found 6 days ago
Select Delta flight, departing Fri, 15 Aug. from Detroit to St. Louis, returning Fri, 22 Aug., priced at AU$228 found 6 days ago
Delta
Thu, 14 Aug. - Sun, 17 Aug.
DTW
Detroit
STL
St. Louis
AU$231 Return, found 6 days ago
AU$231
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Aug. from Detroit to St. Louis, returning Sun, 17 Aug., priced at AU$231 found 6 days ago
Delta
Fri, 15 Aug. - Fri, 22 Aug.
DTW
Detroit
STL
St. Louis
AU$272 Return, found 6 days ago
AU$272
Return
found 6 days ago
Select Delta flight, departing Fri, 15 Aug. from Detroit to St. Louis, returning Fri, 22 Aug., priced at AU$272 found 6 days ago
American Airlines
Fri, 15 Aug. - Fri, 22 Aug.
DTW
Detroit
STL
St. Louis
AU$287 Return, found 6 days ago
AU$287
Return
found 6 days ago
Select American Airlines flight, departing Fri, 15 Aug. from Detroit to St. Louis, returning Fri, 22 Aug., priced at AU$287 found 6 days ago
United
Thu, 14 Aug. - Sun, 17 Aug.
DTW
Detroit
STL
St. Louis
AU$292 Return, found 6 days ago
AU$292
Return
found 6 days ago
Select United flight, departing Thu, 14 Aug. from Detroit to St. Louis, returning Sun, 17 Aug., priced at AU$292 found 6 days ago
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