Flights to Northeast Missouri from Baltimore - ￥13,220

View ￥13,220 flight on Sat, Aug 30, 2025Opens in a new window

Popular airlines from Baltimore to Northeast Missouri

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Baltimore to Northeast Missouri (WAS-STL)

Prices were available within the past 7 days and start at ￥13,220 for one-way flights and ￥29,810 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Aug 15 - Wed, Aug 20
DCA
Washington
STL
St. Louis
￥29,810 Roundtrip, found 3 hours ago
￥29,810
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Aug 15 from Washington to St. Louis, returning Wed, Aug 20, priced at ￥29,810 found 3 hours ago
American Airlines
Fri, Aug 15 - Wed, Aug 20
DCA
Washington
STL
St. Louis
￥30,130 Roundtrip, found 3 hours ago
￥30,130
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Aug 15 from Washington to St. Louis, returning Wed, Aug 20, priced at ￥30,130 found 3 hours ago
Delta
Fri, Aug 15 - Wed, Aug 20
DCA
Washington
STL
St. Louis
￥32,690 Roundtrip, found 3 hours ago
￥32,690
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Aug 15 from Washington to St. Louis, returning Wed, Aug 20, priced at ￥32,690 found 3 hours ago
American Airlines
Fri, Aug 15 - Wed, Aug 20
DCA
Washington
STL
St. Louis
￥35,220 Roundtrip, found 3 hours ago
￥35,220
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Aug 15 from Washington to St. Louis, returning Wed, Aug 20, priced at ￥35,220 found 3 hours ago
Delta
Fri, Aug 15 - Wed, Aug 20
DCA
Washington
STL
St. Louis
￥40,100 Roundtrip, found 3 hours ago
￥40,100
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Aug 15 from Washington to St. Louis, returning Wed, Aug 20, priced at ￥40,100 found 3 hours ago
United
Fri, Aug 15 - Wed, Aug 20
DCA
Washington
STL
St. Louis
￥53,330 Roundtrip, found 3 hours ago
￥53,330
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Aug 15 from Washington to St. Louis, returning Wed, Aug 20, priced at ￥53,330 found 3 hours ago

Find the cheapest month to fly from Baltimore (BWI) to St. Louis (STL)

September is typically the cheapest month to fly

From ￥18,758 - ￥67,138 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.