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SFO to IAG: distance & flight time
San Francisco (San Francisco International Airport) → Niagara Falls (Niagara Falls International Airport)
2,291 mi
3,688 km · 1,991 nm
4h 58m
estimated nonstop flight time
+3h
time difference · heading northeast
See live SFO→IAG fares Phone-only fares on this route — call free
Flight time details
2,291 miles nonstop takes roughly 4h 58m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- SFO — San Francisco International Airport · San Francisco, United States
- IAG — Niagara Falls International Airport · Niagara Falls, 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 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
Near IAG
- YYZ · Lester B. Pearson International Airport52 mi away
- YCM · Niagara District Airport13 mi away
- BUF · Buffalo Niagara International Airport16 mi away
- DU9 · Dunnville Airport37 mi away
Frequently asked questions
How far is SFO from IAG?
The flight distance from San Francisco (SFO) to Niagara Falls (IAG) is 2,291 miles (3,688 km, 1,991 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SFO to IAG?
A nonstop flight takes about 4h 58m 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 San Francisco and Niagara Falls?
Niagara Falls is 3 hours ahead of San Francisco.
What is the cheapest way to fly from SFO to IAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SFO–IAG that never appear on search engines, with no booking fees.