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SFO to DUC: distance & flight time
San Francisco (San Francisco International Airport) → Duncan (Halliburton Field)
1,377 mi
2,216 km · 1,197 nm
3h 28m
estimated nonstop flight time
+2h
time difference · heading east
See live SFO→DUC fares Phone-only fares on this route — call free
Flight time details
1,377 miles nonstop takes roughly 3h 28m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SFO — San Francisco International Airport · San Francisco, United States
- DUC — Halliburton Field · Duncan, 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 DUC
Frequently asked questions
How far is SFO from DUC?
The flight distance from San Francisco (SFO) to Duncan (DUC) is 1,377 miles (2,216 km, 1,197 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SFO to DUC?
A nonstop flight takes about 3h 28m 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 Duncan?
Duncan is 2 hours ahead of San Francisco.
What is the cheapest way to fly from SFO to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SFO–DUC that never appear on search engines, with no booking fees.