#1. Airports near Ontario, OR Boise Air Terminal-Gowen Field (BOI) 49 miles Weekly Flights: 369 Domestic Routes: 20 Delayed Flights: 13% Average Delay (hr): 1¼
#2. Airports near Ontario, OR Friedman Memorial Airport (SUN) 139 miles Weekly Flights: 24 Domestic Routes: 5 Delayed Flights: 13% Average Delay (hr): 1¾
#3. Airports near Ontario, OR Lewiston-Nez Perce County Airport (LWS) 162 miles Weekly Flights: 14 Domestic Routes: 1 Delayed Flights: 6% Average Delay (hr): 1½
#4. Airports near Ontario, OR Joslin Field-Magic Valley Regional Airport (TWF) 164 miles Weekly Flights: 24 Domestic Routes: 6 Delayed Flights: 10% Average Delay (hr): 1
#5. Airports near Ontario, OR Tri-Cities Airport (PSC) 187 miles Weekly Flights: 56 Domestic Routes: 8 Delayed Flights: 14% Average Delay (hr): 1½
#6. Airports near Ontario, OR Roberts Field (RDM) 208 miles Weekly Flights: 73 Domestic Routes: 7 Delayed Flights: 17% Average Delay (hr): 1½
#7. Airports near Ontario, OR Elko Regional Airport (EKO) 229 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 5% Average Delay (hr): 2
#8. Airports near Ontario, OR Pocatello Regional Airport (PIH) 233 miles Weekly Flights: 24 Domestic Routes: 1 Delayed Flights: 6% Average Delay (hr): 1¼
#9. Airports near Ontario, OR Missoula International Airport (MSO) 244 miles Weekly Flights: 66 Domestic Routes: 13 Delayed Flights: 13% Average Delay (hr): 1¼
#10. Airports near Ontario, OR Idaho Falls Regional Airport (IDA) 247 miles Weekly Flights: 42 Domestic Routes: 7 Delayed Flights: 11% Average Delay (hr): 1½
#11. Airports near Ontario, OR Spokane International Airport (GEG) 250 miles Weekly Flights: 237 Domestic Routes: 17 Delayed Flights: 13% Average Delay (hr): 1
#12. Airports near Ontario, OR Bert Mooney Airport (BTM) 256 miles Weekly Flights: 13 Domestic Routes: 1 Delayed Flights: 7% Average Delay (hr): 2
#13. Airports near Ontario, OR Yellowstone Airport (WYS) 293 miles Weekly Flights: 5 Domestic Routes: 1 Delayed Flights: 5% Average Delay (hr): 1
#14. Airports near Ontario, OR Portland International Airport (PDX) 296 miles Weekly Flights: 1,213 Domestic Routes: 56 Delayed Flights: 13% Average Delay (hr): 1
#15. Airports near Ontario, OR Helena Regional Airport (HLN) 301 miles Weekly Flights: 35 Domestic Routes: 3 Delayed Flights: 6% Average Delay (hr): 1½
#16. Airports near Ontario, OR Mahlon Sweet Field (EUG) 310 miles Weekly Flights: 79 Domestic Routes: 10 Delayed Flights: 18% Average Delay (hr): 1¼
#17. Airports near Ontario, OR Bozeman Yellowstone International Airport (BZN) 310 miles Weekly Flights: 112 Domestic Routes: 16 Delayed Flights: 15% Average Delay (hr): 1½
#18. Airports near Ontario, OR Jackson Hole Airport (JAC) 312 miles Weekly Flights: 81 Domestic Routes: 13 Delayed Flights: 18% Average Delay (hr): 1½
#19. Airports near Ontario, OR Rogue Valley International-Medford Airport (MFR) 318 miles Weekly Flights: 91 Domestic Routes: 9 Delayed Flights: 21% Average Delay (hr): 1½
#20. Airports near Ontario, OR Ogden-Hinckley Airport (OGD) 319 miles Weekly Flights: 2 Domestic Routes: 3 Delayed Flights: 33% Average Delay (hr): 1