Cheap flights from Baltimore to Southern Illinois

View AU$137 flight on Wed, 27 Aug. 2025Opens in a new window

Popular airlines from Baltimore to Southern 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 Baltimore (WAS) to Southern 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.

American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
BWI
Baltimore
STL
St. Louis
AU$272 Return, found 1 day ago
AU$272
Return
found 1 day ago
Select American Airlines flight, departing Sat, 6 Sep. from Baltimore to St. Louis, returning Sat, 13 Sep., priced at AU$272 found 1 day ago
American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
DCA
Washington
STL
St. Louis
AU$275 Return, found 1 day ago
AU$275
Return
found 1 day ago
Select American Airlines flight, departing Sat, 6 Sep. from Washington to St. Louis, returning Sat, 13 Sep., priced at AU$275 found 1 day ago
Delta
Sat, 6 Sep. - Sat, 13 Sep.
DCA
Washington
STL
St. Louis
AU$305 Return, found 1 day ago
AU$305
Return
found 1 day ago
Select Delta flight, departing Sat, 6 Sep. from Washington to St. Louis, returning Sat, 13 Sep., priced at AU$305 found 1 day ago
American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
DCA
Washington
STL
St. Louis
AU$330 Return, found 1 day ago
AU$330
Return
found 1 day ago
Select American Airlines flight, departing Sat, 6 Sep. from Washington to St. Louis, returning Sat, 13 Sep., priced at AU$330 found 1 day ago
Delta
Sat, 6 Sep. - Sat, 13 Sep.
BWI
Baltimore
STL
St. Louis
AU$348 Return, found 1 day ago
AU$348
Return
found 1 day ago
Select Delta flight, departing Sat, 6 Sep. from Baltimore to St. Louis, returning Sat, 13 Sep., priced at AU$348 found 1 day ago
United
Sat, 6 Sep. - Sat, 13 Sep.
BWI
Baltimore
STL
St. Louis
AU$383 Return, found 1 day ago
AU$383
Return
found 1 day ago
Select United flight, departing Sat, 6 Sep. from Baltimore to St. Louis, returning Sat, 13 Sep., priced at AU$383 found 1 day ago
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