Flights to Central Illinois from Seattle - ￥13,880

View ￥13,880 flight on Wed, Sep 24, 2025Opens in a new window

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Cheap Flights from Seattle to Central Illinois (SEA-STL)

Prices were available within the past 7 days and start at ￥13,880 for one-way flights and ￥44,090 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jul 12 - Mon, Jul 21
SEA
Seattle
STL
St. Louis
￥44,090 Roundtrip, found 2 days ago
￥44,090
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jul 12 from Seattle to St. Louis, returning Mon, Jul 21, priced at ￥44,090 found 2 days ago
Delta
Thu, Jul 17 - Mon, Jul 21
SEA
Seattle
STL
St. Louis
￥44,410 Roundtrip, found 5 days ago
￥44,410
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jul 17 from Seattle to St. Louis, returning Mon, Jul 21, priced at ￥44,410 found 5 days ago
American Airlines
Thu, Jul 17 - Mon, Jul 21
SEA
Seattle
STL
St. Louis
￥44,520 Roundtrip, found 5 days ago
￥44,520
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jul 17 from Seattle to St. Louis, returning Mon, Jul 21, priced at ￥44,520 found 5 days ago
United
Thu, Jul 17 - Mon, Jul 21
SEA
Seattle
STL
St. Louis
￥45,920 Roundtrip, found 5 days ago
￥45,920
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jul 17 from Seattle to St. Louis, returning Mon, Jul 21, priced at ￥45,920 found 5 days ago
American Airlines
Thu, Jul 17 - Mon, Jul 21
SEA
Seattle
STL
St. Louis
￥47,420 Roundtrip, found 5 days ago
￥47,420
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jul 17 from Seattle to St. Louis, returning Mon, Jul 21, priced at ￥47,420 found 5 days ago
United
Sat, Jul 12 - Mon, Jul 21
SEA
Seattle
STL
St. Louis
￥49,150 Roundtrip, found 2 days ago
￥49,150
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jul 12 from Seattle to St. Louis, returning Mon, Jul 21, priced at ￥49,150 found 2 days ago
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