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HLN to SFO: distance & flight time
Helena (Helena Regional Airport) → San Francisco (San Francisco International Airport)
817 mi
1,314 km · 710 nm
2h 15m
estimated nonstop flight time
-1h
time difference · heading southwest
See live HLN→SFO fares Phone-only fares on this route — call free
Flight time details
817 miles nonstop takes roughly 2h 15m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- SFO — San Francisco International Airport · San Francisco, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Near SFO
- SQL · San Carlos Airport10 mi away
- HAF · Half Moon Bay Airport10 mi away
- OAK · Metropolitan Oakland International Airport11 mi away
- NGZ · Alameda Naval Air Station12 mi away
Frequently asked questions
How far is HLN from SFO?
The flight distance from Helena (HLN) to San Francisco (SFO) is 817 miles (1,314 km, 710 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to SFO?
A nonstop flight takes about 2h 15m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Helena and San Francisco?
San Francisco is 1 hour behind Helena.
What is the cheapest way to fly from HLN to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–SFO that never appear on search engines, with no booking fees.