Flights to Northern Idaho from St. Louis -

Popular airlines from St. Louis to Northern Idaho

  • Peach

    Peach

  • Skymark Airlines

    Skymark Airlines

  • All Nippon Airways

    All Nippon Airways

  • Japan Airlines

    Japan Airlines

  • Jetstar Japan

    Jetstar Japan

  • Solaseed Air

    Solaseed Air

  • STARFLYER

    STARFLYER

  • 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 St. Louis to Northern Idaho (STL-GEG)

Prices were available within the past 7 days and start at for one-way flights and ￥45,410 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥45,410 Roundtrip, found 19 hours ago
￥45,410
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥45,410 found 19 hours ago
American Airlines
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥49,390 Roundtrip, found 19 hours ago
￥49,390
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥49,390 found 19 hours ago
Delta
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥50,680 Roundtrip, found 19 hours ago
￥50,680
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥50,680 found 19 hours ago
Delta
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥55,950 Roundtrip, found 19 hours ago
￥55,950
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥55,950 found 19 hours ago
Delta
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥56,810 Roundtrip, found 19 hours ago
￥56,810
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥56,810 found 19 hours ago
United
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥57,340 Roundtrip, found 19 hours ago
￥57,340
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥57,340 found 19 hours ago
United
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥61,210 Roundtrip, found 19 hours ago
￥61,210
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥61,210 found 19 hours ago
Delta
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥61,970 Roundtrip, found 19 hours ago
￥61,970
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥61,970 found 19 hours ago
United
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥64,760 Roundtrip, found 19 hours ago
￥64,760
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥64,760 found 19 hours ago
Delta
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥66,910 Roundtrip, found 19 hours ago
￥66,910
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥66,910 found 19 hours ago
Delta
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥68,090 Roundtrip, found 19 hours ago
￥68,090
Roundtrip
found 19 hours ago
Select Delta flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥68,090 found 19 hours ago
United
Sat, Aug 16 - Thu, Aug 21
STL
St. Louis
GEG
Spokane
￥68,740 Roundtrip, found 19 hours ago
￥68,740
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Aug 16 from St. Louis to Spokane, returning Thu, Aug 21, priced at ￥68,740 found 19 hours ago
*Available to Expedia members.