#21. Airports near ZIP Code 57640, SD Central Nebraska Regional Airport (GRI) 400 miles Weekly Flights: 19 Domestic Routes: 3 Delayed Flights: 20% Average Delay (hr): 1½
#22. Airports near ZIP Code 57640, SD Bozeman Yellowstone International Airport (BZN) 406 miles Weekly Flights: 112 Domestic Routes: 16 Delayed Flights: 15% Average Delay (hr): 1½
#23. Airports near ZIP Code 57640, SD Brainerd Lakes Regional Airport (BRD) 413 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 10% Average Delay (hr): 2
#24. Airports near ZIP Code 57640, SD Yellowstone Airport (WYS) 415 miles Weekly Flights: 5 Domestic Routes: 1 Delayed Flights: 5% Average Delay (hr): 1
#25. Airports near ZIP Code 57640, SD St. Cloud Regional Airport (STC) 418 miles Weekly Flights: 3 Domestic Routes: 2 Delayed Flights: 25% Average Delay (hr): 1¼
#26. Airports near ZIP Code 57640, SD Denver International Airport (DEN) 421 miles Weekly Flights: 4,538 Domestic Routes: 162 Delayed Flights: 19% Average Delay (hr): 1
#27. Airports near ZIP Code 57640, SD Jackson Hole Airport (JAC) 422 miles Weekly Flights: 81 Domestic Routes: 13 Delayed Flights: 18% Average Delay (hr): 1½
#28. Airports near ZIP Code 57640, SD Great Falls International Airport (GTF) 427 miles Weekly Flights: 36 Domestic Routes: 8 Delayed Flights: 10% Average Delay (hr): 1¾
#29. Airports near ZIP Code 57640, SD Southwest Wyoming Regional Airport (RKS) 429 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 9% Average Delay (hr): 2¼
#30. Airports near ZIP Code 57640, SD Yampa Valley Airport (HDN) 431 miles Weekly Flights: 18 Domestic Routes: 14 Delayed Flights: 17% Average Delay (hr): 1¾
#31. Airports near ZIP Code 57640, SD Helena Regional Airport (HLN) 446 miles Weekly Flights: 35 Domestic Routes: 3 Delayed Flights: 6% Average Delay (hr): 1½
#32. Airports near ZIP Code 57640, SD Lincoln Airport (LNK) 454 miles Weekly Flights: 34 Domestic Routes: 4 Delayed Flights: 12% Average Delay (hr): 2
#33. Airports near ZIP Code 57640, SD Eppley Airfield (OMA) 461 miles Weekly Flights: 481 Domestic Routes: 34 Delayed Flights: 15% Average Delay (hr): 1¼
#34. Airports near ZIP Code 57640, SD Minneapolis-St Paul International-Wold-Chamberlain Airport (MSP) 465 miles Weekly Flights: 3,065 Domestic Routes: 132 Delayed Flights: 14% Average Delay (hr): 1¼
#35. Airports near ZIP Code 57640, SD Bert Mooney Airport (BTM) 470 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 7% Average Delay (hr): 2
#36. Airports near ZIP Code 57640, SD Eagle County Regional Airport (EGE) 475 miles Weekly Flights: 41 Domestic Routes: 14 Delayed Flights: 20% Average Delay (hr): 2¼
#37. Airports near ZIP Code 57640, SD Falls International Airport-Einarson Field (INL) 477 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 11% Average Delay (hr): 1¾
#38. Airports near ZIP Code 57640, SD Range Regional Airport (HIB) 482 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 7% Average Delay (hr): 2
#39. Airports near ZIP Code 57640, SD Idaho Falls Regional Airport (IDA) 486 miles Weekly Flights: 42 Domestic Routes: 7 Delayed Flights: 11% Average Delay (hr): 1½
#40. Airports near ZIP Code 57640, SD City of Colorado Springs Municipal Airport (COS) 493 miles Weekly Flights: 199 Domestic Routes: 17 Delayed Flights: 18% Average Delay (hr): 1½