#21. Airports near Union Township, SD Sioux Gateway Airport-Brig Gen Bud Day Field (SUX) 375 miles Weekly Flights: 23 Domestic Routes: 2 Delayed Flights: 24% Average Delay (hr): 1
#22. Airports near Union Township, SD Yampa Valley Airport (HDN) 375 miles Weekly Flights: 18 Domestic Routes: 14 Delayed Flights: 17% Average Delay (hr): 1¾
#23. Airports near Union Township, SD Southwest Wyoming Regional Airport (RKS) 383 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 9% Average Delay (hr): 2¼
#24. Airports near Union Township, SD Jackson Hole Airport (JAC) 393 miles Weekly Flights: 81 Domestic Routes: 13 Delayed Flights: 18% Average Delay (hr): 1½
#25. Airports near Union Township, SD Yellowstone Airport (WYS) 398 miles Weekly Flights: 5 Domestic Routes: 1 Delayed Flights: 5% Average Delay (hr): 1
#26. Airports near Union Township, SD Bozeman Yellowstone International Airport (BZN) 399 miles Weekly Flights: 112 Domestic Routes: 16 Delayed Flights: 15% Average Delay (hr): 1½
#27. Airports near Union Township, SD Eagle County Regional Airport (EGE) 417 miles Weekly Flights: 41 Domestic Routes: 14 Delayed Flights: 20% Average Delay (hr): 2¼
#28. Airports near Union Township, SD Lincoln Airport (LNK) 424 miles Weekly Flights: 34 Domestic Routes: 4 Delayed Flights: 12% Average Delay (hr): 2
#29. Airports near Union Township, SD Bemidji Regional Airport (BJI) 424 miles Weekly Flights: 14 Domestic Routes: 1 Delayed Flights: 10% Average Delay (hr): 1¾
#30. Airports near Union Township, SD City of Colorado Springs Municipal Airport (COS) 433 miles Weekly Flights: 199 Domestic Routes: 17 Delayed Flights: 18% Average Delay (hr): 1½
#31. Airports near Union Township, SD Great Falls International Airport (GTF) 436 miles Weekly Flights: 36 Domestic Routes: 8 Delayed Flights: 10% Average Delay (hr): 1¾
#32. Airports near Union Township, SD St. Cloud Regional Airport (STC) 437 miles Weekly Flights: 3 Domestic Routes: 2 Delayed Flights: 25% Average Delay (hr): 1¼
#33. Airports near Union Township, SD Eppley Airfield (OMA) 438 miles Weekly Flights: 481 Domestic Routes: 34 Delayed Flights: 15% Average Delay (hr): 1¼
#34. Airports near Union Township, SD Brainerd Lakes Regional Airport (BRD) 440 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 10% Average Delay (hr): 2
#35. Airports near Union Township, SD Aspen-Pitkin County Airport-Sardy Field (ASE) 442 miles Weekly Flights: 132 Domestic Routes: 10 Delayed Flights: 21% Average Delay (hr): 1¾
#36. Airports near Union Township, SD Helena Regional Airport (HLN) 447 miles Weekly Flights: 35 Domestic Routes: 3 Delayed Flights: 6% Average Delay (hr): 1½
#37. Airports near Union Township, SD Vernal Regional Airport (VEL) 453 miles Weekly Flights: 6 Domestic Routes: 1 Delayed Flights: 13% Average Delay (hr): 1½
#38. Airports near Union Township, SD Idaho Falls Regional Airport (IDA) 459 miles Weekly Flights: 42 Domestic Routes: 7 Delayed Flights: 11% Average Delay (hr): 1½
#39. Airports near Union Township, SD Hays Regional Airport (HYS) 463 miles Weekly Flights: 21 Domestic Routes: 2 Delayed Flights: 16% Average Delay (hr): 2
#40. Airports near Union Township, SD Bert Mooney Airport (BTM) 465 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 7% Average Delay (hr): 2