Need help booking?
Unpublished phone-only deals available
ROI to SFO: distance & flight time
Roi Et (Roi Et Airport) → San Francisco (San Francisco International Airport)
7,667 mi
12,338 km · 6,662 nm
15h 30m
estimated nonstop flight time
-14h
time difference · heading northeast
See live ROI→SFO fares Phone-only fares on this route — call free
Flight time details
7,667 miles nonstop takes roughly 15h 30m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- ROI — Roi Et Airport · Roi Et, Thailand
- 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 ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 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 ROI from SFO?
The flight distance from Roi Et (ROI) to San Francisco (SFO) is 7,667 miles (12,338 km, 6,662 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ROI to SFO?
A nonstop flight takes about 15h 30m 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 Roi Et and San Francisco?
San Francisco is 14 hours behind Roi Et.
What is the cheapest way to fly from ROI to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ROI–SFO that never appear on search engines, with no booking fees.