#1. Airports near ZIP Code 59420, MT Great Falls International Airport (GTF) 32 miles Weekly Flights: 36 Domestic Routes: 8 Delayed Flights: 10% Average Delay (hr): 1¾
#2. Airports near ZIP Code 59420, MT Helena Regional Airport (HLN) 99 miles Weekly Flights: 35 Domestic Routes: 3 Delayed Flights: 6% Average Delay (hr): 1½
#3. Airports near ZIP Code 59420, MT Bozeman Yellowstone International Airport (BZN) 145 miles Weekly Flights: 112 Domestic Routes: 16 Delayed Flights: 15% Average Delay (hr): 1½
#4. Airports near ZIP Code 59420, MT Bert Mooney Airport (BTM) 150 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 7% Average Delay (hr): 2
#5. Airports near ZIP Code 59420, MT Missoula International Airport (MSO) 159 miles Weekly Flights: 66 Domestic Routes: 13 Delayed Flights: 13% Average Delay (hr): 1¼
#6. Airports near ZIP Code 59420, MT Billings Logan International Airport (BIL) 184 miles Weekly Flights: 80 Domestic Routes: 11 Delayed Flights: 11% Average Delay (hr): 1½
#7. Airports near ZIP Code 59420, MT Yellowstone Airport (WYS) 220 miles Weekly Flights: 5 Domestic Routes: 1 Delayed Flights: 5% Average Delay (hr): 1
#8. Airports near ZIP Code 59420, MT Yellowstone Regional Airport (COD) 251 miles Weekly Flights: 16 Domestic Routes: 2 Delayed Flights: 10% Average Delay (hr): 2¼
#9. Airports near ZIP Code 59420, MT Jackson Hole Airport (JAC) 295 miles Weekly Flights: 81 Domestic Routes: 13 Delayed Flights: 18% Average Delay (hr): 1½
#10. Airports near ZIP Code 59420, MT Lewiston-Nez Perce County Airport (LWS) 301 miles Weekly Flights: 14 Domestic Routes: 1 Delayed Flights: 6% Average Delay (hr): 1½
#11. Airports near ZIP Code 59420, MT Spokane International Airport (GEG) 304 miles Weekly Flights: 237 Domestic Routes: 17 Delayed Flights: 13% Average Delay (hr): 1
#12. Airports near ZIP Code 59420, MT Idaho Falls Regional Airport (IDA) 306 miles Weekly Flights: 42 Domestic Routes: 7 Delayed Flights: 11% Average Delay (hr): 1½
#13. Airports near ZIP Code 59420, MT Friedman Memorial Airport (SUN) 341 miles Weekly Flights: 24 Domestic Routes: 5 Delayed Flights: 13% Average Delay (hr): 1¾
#14. Airports near ZIP Code 59420, MT Pocatello Regional Airport (PIH) 352 miles Weekly Flights: 24 Domestic Routes: 1 Delayed Flights: 6% Average Delay (hr): 1¼
#15. Airports near ZIP Code 59420, MT Gillette-Campbell County Airport (GCC) 358 miles Weekly Flights: 16 Domestic Routes: 1 Delayed Flights: 10% Average Delay (hr): 1¾
#16. Airports near ZIP Code 59420, MT Boise Air Terminal-Gowen Field (BOI) 390 miles Weekly Flights: 369 Domestic Routes: 20 Delayed Flights: 13% Average Delay (hr): 1¼
#17. Airports near ZIP Code 59420, MT Tri-Cities Airport (PSC) 398 miles Weekly Flights: 56 Domestic Routes: 8 Delayed Flights: 14% Average Delay (hr): 1½
#18. Airports near ZIP Code 59420, MT Casper-Natrona County International Airport (CPR) 408 miles Weekly Flights: 19 Domestic Routes: 4 Delayed Flights: 6% Average Delay (hr): 2
#19. Airports near ZIP Code 59420, MT Joslin Field-Magic Valley Regional Airport (TWF) 409 miles Weekly Flights: 24 Domestic Routes: 6 Delayed Flights: 10% Average Delay (hr): 1
#20. Airports near ZIP Code 59420, MT Southwest Wyoming Regional Airport (RKS) 444 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 9% Average Delay (hr): 2¼