Flights to San Diego from Mascoutah - ￥38,780

View ￥38,780 flight on Wed, Jul 2, 2025Opens in a new window

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Cheap Flights from Mascoutah to San Diego (STL-SAN)

Prices were available within the past 7 days and start at ￥38,780 for one-way flights and ￥54,420 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jul 16 - Mon, Jul 21
STL
St. Louis
SAN
San Diego
￥54,420 Roundtrip, found 5 days ago
￥54,420
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jul 16 from St. Louis to San Diego, returning Mon, Jul 21, priced at ￥54,420 found 5 days ago
Delta
Wed, Jul 16 - Mon, Jul 21
STL
St. Louis
SAN
San Diego
￥55,920 Roundtrip, found 5 days ago
￥55,920
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Jul 16 from St. Louis to San Diego, returning Mon, Jul 21, priced at ￥55,920 found 5 days ago
American Airlines
Wed, Jul 16 - Mon, Jul 21
STL
St. Louis
SAN
San Diego
￥56,240 Roundtrip, found 5 days ago
￥56,240
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jul 16 from St. Louis to San Diego, returning Mon, Jul 21, priced at ￥56,240 found 5 days ago
American Airlines
Wed, Jul 16 - Mon, Jul 21
STL
St. Louis
SAN
San Diego
￥59,790 Roundtrip, found 5 days ago
￥59,790
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jul 16 from St. Louis to San Diego, returning Mon, Jul 21, priced at ￥59,790 found 5 days ago
American Airlines
Wed, Jul 16 - Mon, Jul 21
STL
St. Louis
SAN
San Diego
￥62,910 Roundtrip, found 5 days ago
￥62,910
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jul 16 from St. Louis to San Diego, returning Mon, Jul 21, priced at ￥62,910 found 5 days ago
United
Wed, Jul 16 - Mon, Jul 21
STL
St. Louis
SAN
San Diego
￥67,420 Roundtrip, found 5 days ago
￥67,420
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jul 16 from St. Louis to San Diego, returning Mon, Jul 21, priced at ￥67,420 found 5 days ago

Find the cheapest month to fly from St. Louis (STL) to San Diego (SAN)

September is typically the cheapest month to fly

From ￥17,101 - ￥41,051 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.