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Cheap Flights To St Louis, MO

  • TipAugust is the cheapest month to fly to St Louis
  • Tip$72 is the average round-trip fare price from CGI to STL

Best Deals to St Louis Last modified: Apr 28, 2017 8:42 -04:00Prices shown were found by travelers like you over the past 30 days

We've scanned 14,376,829,216 round trip itineraries and found the cheapest flights to St Louis. Frontier & United frequently offer the best deals to St Louis flights, or select your preferred carrier below to see the cheapest days to fly.

Frontier
DENSTL
Tue 6/6
nonstop
STLDEN
Wed 6/7
nonstop
$147
Frontier
LASSTL
Sun 5/28
nonstop
STLLAS
Tue 5/30
nonstop
$177
United
WASSTL
Sat 5/27
nonstop
STLWAS
Sun 5/28
nonstop
$203
American
CHISTL
Sat 5/20
nonstop
STLCHI
Sun 5/21
nonstop
$242
American
PHLSTL
Wed 6/7
1 stop
STLPHL
Tue 6/13
1 stop
$326

Airports near St Louis

Cheap Flights from St Louis (STL)

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Cheap Flights to St Louis - Round trip airfares for St Louis flights (STL)