Flights to San Diego from Mascoutah

View ฿5,235 flight on Sun, 31 Aug 2025Opens in a new window

Popular airlines from Mascoutah to San Diego

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

Prices were available within the past 7 days and start at ฿5,235 for one-way flights and ฿11,775 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 31 Aug - Sun, 7 Sep
STL
St. Louis
SAN
San Diego
฿11,775 Return, found 6 days ago
฿11,775
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug from St. Louis to San Diego, returning Sun, 7 Sep, priced at ฿11,775 found 6 days ago
Delta
Sun, 31 Aug - Sun, 7 Sep
STL
St. Louis
SAN
San Diego
฿11,945 Return, found 6 days ago
฿11,945
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug from St. Louis to San Diego, returning Sun, 7 Sep, priced at ฿11,945 found 6 days ago
Delta
Sun, 31 Aug - Sun, 7 Sep
STL
St. Louis
SAN
San Diego
฿12,765 Return, found 6 days ago
฿12,765
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug from St. Louis to San Diego, returning Sun, 7 Sep, priced at ฿12,765 found 6 days ago
Delta
Sun, 31 Aug - Sun, 7 Sep
STL
St. Louis
SAN
San Diego
฿13,090 Return, found 6 days ago
฿13,090
Return
found 6 days ago
Select Delta flight, departing Sun, 31 Aug from St. Louis to San Diego, returning Sun, 7 Sep, priced at ฿13,090 found 6 days ago
United
Sun, 31 Aug - Sun, 7 Sep
STL
St. Louis
SAN
San Diego
฿13,255 Return, found 6 days ago
฿13,255
Return
found 6 days ago
Select United flight, departing Sun, 31 Aug from St. Louis to San Diego, returning Sun, 7 Sep, priced at ฿13,255 found 6 days ago
American Airlines
Sun, 31 Aug - Sun, 7 Sep
STL
St. Louis
SAN
San Diego
฿13,415 Return, found 6 days ago
฿13,415
Return
found 6 days ago
Select American Airlines flight, departing Sun, 31 Aug from St. Louis to San Diego, returning Sun, 7 Sep, priced at ฿13,415 found 6 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 ฿3,843 - ฿9,922 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.