Cheap flights from Phoenix to Central Illinois from CA $161

View CA $161 flight on Fri, Oct. 10, 2025Opens in a new window

Popular airlines from Phoenix to Central Illinois

  • Air Canada

    Air Canada

  • WestJet

    WestJet

  • Flair Airlines

    Flair Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Porter Airlines

    Porter Airlines

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Cheap flights from Phoenix (PHX) to Central Illinois (STL)

Prices were available within the past 7 days and start at CA $161 for one-way flights and CA $514 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jul. 24 - Mon, Jul. 28
PHX
Phoenix
MDW
Chicago
CA $514 Roundtrip, found 1 day ago
CA $514
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul. 24 from Phoenix to Chicago, returning Mon, Jul. 28, priced at CA $514 found 1 day ago
Delta
Sat, Jul. 19 - Fri, Jul. 25
PHX
Phoenix
MDW
Chicago
CA $552 Roundtrip, found 3 days ago
CA $552
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Jul. 19 from Phoenix to Chicago, returning Fri, Jul. 25, priced at CA $552 found 3 days ago
Delta
Thu, Jul. 24 - Mon, Jul. 28
PHX
Phoenix
MDW
Chicago
CA $568 Roundtrip, found 1 day ago
CA $568
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul. 24 from Phoenix to Chicago, returning Mon, Jul. 28, priced at CA $568 found 1 day ago
Delta
Sat, Jul. 19 - Fri, Jul. 25
PHX
Phoenix
MDW
Chicago
CA $608 Roundtrip, found 3 days ago
CA $608
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Jul. 19 from Phoenix to Chicago, returning Fri, Jul. 25, priced at CA $608 found 3 days ago
Delta
Thu, Jul. 24 - Mon, Jul. 28
PHX
Phoenix
MDW
Chicago
CA $624 Roundtrip, found 1 day ago
CA $624
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul. 24 from Phoenix to Chicago, returning Mon, Jul. 28, priced at CA $624 found 1 day ago
Delta
Thu, Jul. 24 - Mon, Jul. 28
PHX
Phoenix
MDW
Chicago
CA $651 Roundtrip, found 1 day ago
CA $651
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul. 24 from Phoenix to Chicago, returning Mon, Jul. 28, priced at CA $651 found 1 day ago

Find the cheapest month to fly from Phoenix (PHX) to Springfield (SPI)

September is typically the cheapest month to fly

From CA $514 - CA $903 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.