#21. Airports near ZIP Code 57420, SD Lincoln Airport (LNK) 351 miles Weekly Flights: 34 Domestic Routes: 4 Delayed Flights: 12% Average Delay (hr): 2
#22. Airports near ZIP Code 57420, SD Casper-Natrona County International Airport (CPR) 354 miles Weekly Flights: 19 Domestic Routes: 4 Delayed Flights: 6% Average Delay (hr): 2
#23. Airports near ZIP Code 57420, SD Cheyenne Regional Airport-Jerry Olson Field (CYS) 370 miles Weekly Flights: 1 Domestic Routes: 1 Delayed Flights: 18% Average Delay (hr): 1
#24. Airports near ZIP Code 57420, SD Range Regional Airport (HIB) 377 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 7% Average Delay (hr): 2
#25. Airports near ZIP Code 57420, SD Rochester International Airport (RST) 388 miles Weekly Flights: 63 Domestic Routes: 3 Delayed Flights: 17% Average Delay (hr): 1½
#26. Airports near ZIP Code 57420, SD Falls International Airport-Einarson Field (INL) 390 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 11% Average Delay (hr): 1¾
#27. Airports near ZIP Code 57420, SD Laramie Regional Airport (LAR) 391 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 11% Average Delay (hr): 2¼
#28. Airports near ZIP Code 57420, SD Duluth International Airport (DLH) 396 miles Weekly Flights: 54 Domestic Routes: 2 Delayed Flights: 15% Average Delay (hr): 1¾
#29. Airports near ZIP Code 57420, SD Billings Logan International Airport (BIL) 408 miles Weekly Flights: 80 Domestic Routes: 11 Delayed Flights: 11% Average Delay (hr): 1½
#30. Airports near ZIP Code 57420, SD Des Moines International Airport (DSM) 416 miles Weekly Flights: 300 Domestic Routes: 26 Delayed Flights: 15% Average Delay (hr): 1¼
#31. Airports near ZIP Code 57420, SD Chippewa Valley Regional Airport (EAU) 424 miles Weekly Flights: 14 Domestic Routes: 1 Delayed Flights: 13% Average Delay (hr): 2¼
#32. Airports near ZIP Code 57420, SD Waterloo Regional Airport (ALO) 429 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 17% Average Delay (hr): 1¼
#33. Airports near ZIP Code 57420, SD Yellowstone Regional Airport (COD) 437 miles Weekly Flights: 16 Domestic Routes: 2 Delayed Flights: 10% Average Delay (hr): 2¼
#34. Airports near ZIP Code 57420, SD Denver International Airport (DEN) 440 miles Weekly Flights: 4,538 Domestic Routes: 162 Delayed Flights: 19% Average Delay (hr): 1
#35. Airports near ZIP Code 57420, SD Hays Regional Airport (HYS) 448 miles Weekly Flights: 21 Domestic Routes: 2 Delayed Flights: 16% Average Delay (hr): 2
#36. Airports near ZIP Code 57420, SD La Crosse Regional Airport (LSE) 448 miles Weekly Flights: 41 Domestic Routes: 2 Delayed Flights: 14% Average Delay (hr): 1½
#37. Airports near ZIP Code 57420, SD Manhattan Regional Airport (MHK) 461 miles Weekly Flights: 35 Domestic Routes: 2 Delayed Flights: 16% Average Delay (hr): 1½
#38. Airports near ZIP Code 57420, SD Salina Regional Airport (SLN) 467 miles Weekly Flights: 13 Domestic Routes: 2 Delayed Flights: 20% Average Delay (hr): 2¼
#39. Airports near ZIP Code 57420, SD The Eastern Iowa Airport (CID) 483 miles Weekly Flights: 178 Domestic Routes: 15 Delayed Flights: 16% Average Delay (hr): 1¼
#40. Airports near ZIP Code 57420, SD Yampa Valley Airport (HDN) 488 miles Weekly Flights: 18 Domestic Routes: 14 Delayed Flights: 17% Average Delay (hr): 1¾