#1. Airports near Portola, CA Reno-Tahoe International Airport (RNO) 44 miles Weekly Flights: 348 Domestic Routes: 22 Delayed Flights: 18% Average Delay (hr): 1
#2. Airports near Portola, CA Sacramento International Airport (SMF) 98 miles Weekly Flights: 906 Domestic Routes: 36 Delayed Flights: 15% Average Delay (hr): 1
#3. Airports near Portola, CA Redding Municipal Airport (RDD) 107 miles Weekly Flights: 22 Domestic Routes: 1 Delayed Flights: 22% Average Delay (hr): 1½
#4. Airports near Portola, CA Stockton Metropolitan Airport (SCK) 139 miles Weekly Flights: 14 Domestic Routes: 3 Delayed Flights: 40% Average Delay (hr): 1
#5. Airports near Portola, CA Charles M Schulz-Sonoma County Airport (STS) 155 miles Weekly Flights: 29 Domestic Routes: 4 Delayed Flights: 17% Average Delay (hr): 1¾
#6. Airports near Portola, CA Metropolitan Oakland International Airport (OAK) 173 miles Weekly Flights: 1,013 Domestic Routes: 51 Delayed Flights: 19% Average Delay (hr): ¾
#7. Airports near Portola, CA Mammoth Yosemite Airport (MMH) 176 miles Weekly Flights: 3 Domestic Routes: 3 Delayed Flights: 33% Average Delay (hr): 2
#8. Airports near Portola, CA San Francisco International Airport (SFO) 183 miles Weekly Flights: 3,382 Domestic Routes: 86 Delayed Flights: 21% Average Delay (hr): 1
#9. Airports near Portola, CA Norman Y Mineta San Jose International Airport (SJC) 187 miles Weekly Flights: 1,050 Domestic Routes: 43 Delayed Flights: 17% Average Delay (hr): 1
#10. Airports near Portola, CA California Redwood Coast-Humboldt County Airport (ACV) 207 miles Weekly Flights: 28 Domestic Routes: 2 Delayed Flights: 21% Average Delay (hr): 1½
#11. Airports near Portola, CA Fresno Yosemite International Airport (FAT) 214 miles Weekly Flights: 214 Domestic Routes: 11 Delayed Flights: 17% Average Delay (hr): 1½
#12. Airports near Portola, CA Rogue Valley International-Medford Airport (MFR) 216 miles Weekly Flights: 91 Domestic Routes: 9 Delayed Flights: 21% Average Delay (hr): 1½
#13. Airports near Portola, CA Monterey Regional Airport (MRY) 235 miles Weekly Flights: 75 Domestic Routes: 6 Delayed Flights: 16% Average Delay (hr): 1½
#14. Airports near Portola, CA Elko Regional Airport (EKO) 256 miles Weekly Flights: 12 Domestic Routes: 1 Delayed Flights: 5% Average Delay (hr): 2
#15. Airports near Portola, CA Roberts Field (RDM) 308 miles Weekly Flights: 73 Domestic Routes: 7 Delayed Flights: 17% Average Delay (hr): 1½
#16. Airports near Portola, CA Meadows Field (BFL) 313 miles Weekly Flights: 45 Domestic Routes: 3 Delayed Flights: 12% Average Delay (hr): 1½
#17. Airports near Portola, CA Southwest Oregon Regional Airport (OTH) 316 miles Weekly Flights: 7 Domestic Routes: 2 Delayed Flights: 35% Average Delay (hr): 1½
#18. Airports near Portola, CA San Luis County Regional Airport (SBP) 317 miles Weekly Flights: 93 Domestic Routes: 5 Delayed Flights: 18% Average Delay (hr): 1½
#19. Airports near Portola, CA Mahlon Sweet Field (EUG) 329 miles Weekly Flights: 79 Domestic Routes: 10 Delayed Flights: 18% Average Delay (hr): 1¼
#20. Airports near Portola, CA Boise Air Terminal-Gowen Field (BOI) 339 miles Weekly Flights: 369 Domestic Routes: 20 Delayed Flights: 13% Average Delay (hr): 1¼