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CNX to SFO: distance & flight time
Chiang Mai (Chiang Mai International Airport) → San Francisco (San Francisco International Airport)
7,705 mi
12,400 km · 6,695 nm
15h 34m
estimated nonstop flight time
-14h
time difference · heading northeast
See live CNX→SFO fares Phone-only fares on this route — call free
Flight time details
7,705 miles nonstop takes roughly 15h 34m 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
- CNX — Chiang Mai International Airport · Chiang Mai, 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 CNX
- LPT · Lampang Airport49 mi away
- PYY · Mae Hong Son Airport54 mi away
- HGN · Mae Hong Son Airport74 mi away
- PRH · Phrae Airport90 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 CNX from SFO?
The flight distance from Chiang Mai (CNX) to San Francisco (SFO) is 7,705 miles (12,400 km, 6,695 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CNX to SFO?
A nonstop flight takes about 15h 34m 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 Chiang Mai and San Francisco?
San Francisco is 14 hours behind Chiang Mai.
What is the cheapest way to fly from CNX to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CNX–SFO that never appear on search engines, with no booking fees.