Cheap flights from Perth to Southwest Illinois

View AU$1,218 flight on Sun, 3 Aug. 2025Opens in a new window

Popular airlines from Perth 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 Perth (PER) 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.

Air New Zealand
Sun, 17 Aug. - Sun, 24 Aug.
PER
Perth
STL
St. Louis
AU$1,996 Return, just found
AU$1,996
Return
just found
Select Air New Zealand flight, departing Sun, 17 Aug. from Perth to St. Louis, returning Sun, 24 Aug., priced at AU$1,996 just found
Air New Zealand
Sat, 1 Nov. - Sun, 23 Nov.
PER
Perth
STL
St. Louis
AU$2,031 Return, found 5 days ago
AU$2,031
Return
found 5 days ago
Select Air New Zealand flight, departing Sat, 1 Nov. from Perth to St. Louis, returning Sun, 23 Nov., priced at AU$2,031 found 5 days ago
United
Mon, 18 Aug. - Mon, 25 Aug.
PER
Perth
STL
St. Louis
AU$2,207 Return, just found
AU$2,207
Return
just found
Select United flight, departing Mon, 18 Aug. from Perth to St. Louis, returning Mon, 25 Aug., priced at AU$2,207 just found
Jetstar
Mon, 18 Aug. - Mon, 25 Aug.
PER
Perth
STL
St. Louis
AU$2,234 Return, just found
AU$2,234
Return
just found
Select Jetstar flight, departing Mon, 18 Aug. from Perth to St. Louis, returning Mon, 25 Aug., priced at AU$2,234 just found
Virgin Australia
Mon, 18 Aug. - Mon, 25 Aug.
PER
Perth
STL
St. Louis
AU$2,238 Return, just found
AU$2,238
Return
just found
Select Virgin Australia flight, departing Mon, 18 Aug. from Perth to St. Louis, returning Mon, 25 Aug., priced at AU$2,238 just found
Qantas Airways
Mon, 18 Aug. - Mon, 25 Aug.
PER
Perth
STL
St. Louis
AU$2,262 Return, just found
AU$2,262
Return
just found
Select Qantas Airways flight, departing Mon, 18 Aug. from Perth to St. Louis, returning Mon, 25 Aug., priced at AU$2,262 just found
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