Flights to Alton, Illinois from NT$6,766

View NT$2,742 flight on Fri, 2025/12/12Opens in a new window

Popular airlines to Alton

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How much is the cheapest flight to Alton?

Prices were available within the past 7 days and start at NT$2,742 for one-way flights and NT$6,766 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Dec 7 - Fri, Dec 12
SEA
Seattle
STL
St. Louis
NT$6,766 Roundtrip, found 8 hours ago
NT$6,766
Roundtrip
found 8 hours ago
Select Delta flight, departing Sun, Dec 7 from Seattle to St. Louis, returning Fri, Dec 12, priced at NT$6,766 found 8 hours ago
United
Sun, Dec 7 - Fri, Dec 12
SEA
Seattle
STL
St. Louis
NT$8,026 Roundtrip, found 8 hours ago
NT$8,026
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Dec 7 from Seattle to St. Louis, returning Fri, Dec 12, priced at NT$8,026 found 8 hours ago
American Airlines
Sun, Dec 7 - Fri, Dec 12
SEA
Seattle
STL
St. Louis
NT$8,279 Roundtrip, found 8 hours ago
NT$8,279
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Sun, Dec 7 from Seattle to St. Louis, returning Fri, Dec 12, priced at NT$8,279 found 8 hours ago
Alaska Airlines
Sun, Nov 23 - Fri, Nov 28
SEA
Seattle
STL
St. Louis
NT$19,185 Roundtrip, found 12 hours ago
NT$19,185
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sun, Nov 23 from Seattle to St. Louis, returning Fri, Nov 28, priced at NT$19,185 found 12 hours ago
Air Canada
Wed, Feb 18 - Mon, Mar 2
CMN
Casablanca
STL
St. Louis
NT$25,995 Roundtrip, found 1 day ago
NT$25,995
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Feb 18 from Casablanca to St. Louis, returning Mon, Mar 2, priced at NT$25,995 found 1 day ago

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
NT$6,766

Trending flights to Alton

Prices were available within the past 7 days and start at NT$2,742 for one-way flights and NT$6,766 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 26 - Tue, Dec 9
TPE
Taipei
STL
St. Louis
NT$26,942 Roundtrip, found 4 days ago
NT$26,942
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 26 from Taipei to St. Louis, returning Tue, Dec 9, priced at NT$26,942 found 4 days ago

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