Flights to North Metro East from Seattle - ￥13,790

View ￥13,790 flight on Wed, Oct 1, 2025Opens in a new window

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Cheap Flights from Seattle to North Metro East (SEA-STL)

Prices were available within the past 7 days and start at ￥13,790 for one-way flights and ￥46,490 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Aug 24 - Sun, Aug 31
SEA
Seattle
STL
St. Louis
￥46,490 Roundtrip, found 5 days ago
￥46,490
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sun, Aug 24 from Seattle to St. Louis, returning Sun, Aug 31, priced at ￥46,490 found 5 days ago
American Airlines
Fri, Aug 8 - Sun, Aug 10
SEA
Seattle
STL
St. Louis
￥47,250 Roundtrip, found 2 days ago
￥47,250
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 8 from Seattle to St. Louis, returning Sun, Aug 10, priced at ￥47,250 found 2 days ago
Delta
Sun, Aug 24 - Sun, Aug 31
SEA
Seattle
STL
St. Louis
￥48,130 Roundtrip, found 5 days ago
￥48,130
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Aug 24 from Seattle to St. Louis, returning Sun, Aug 31, priced at ￥48,130 found 5 days ago
Delta
Sun, Aug 24 - Sun, Aug 31
SEA
Seattle
STL
St. Louis
￥49,080 Roundtrip, found 5 days ago
￥49,080
Roundtrip
found 5 days ago
Select Delta flight, departing Sun, Aug 24 from Seattle to St. Louis, returning Sun, Aug 31, priced at ￥49,080 found 5 days ago
American Airlines
Fri, Aug 8 - Sun, Aug 10
SEA
Seattle
STL
St. Louis
￥51,010 Roundtrip, found 2 days ago
￥51,010
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Aug 8 from Seattle to St. Louis, returning Sun, Aug 10, priced at ￥51,010 found 2 days ago
United
Sun, Aug 24 - Sun, Aug 31
SEA
Seattle
STL
St. Louis
￥56,180 Roundtrip, found 5 days ago
￥56,180
Roundtrip
found 5 days ago
Select United flight, departing Sun, Aug 24 from Seattle to St. Louis, returning Sun, Aug 31, priced at ￥56,180 found 5 days ago

Find the cheapest month to fly from Seattle (SEA) to St. Louis (STL)

August is typically the cheapest month to fly

From ￥19,498 - ￥35,193 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.