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IAO to USU: distance & flight time
Siargao (Siargao Airport) → Busuanga (Francisco B. Reyes Airport)
430 mi
693 km · 374 nm
1h 24m
estimated nonstop flight time
Same time
time difference · heading west
See live IAO→USU fares Phone-only fares on this route — call free
Flight time details
430 miles nonstop takes roughly 1h 24m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IAO — Siargao Airport · Siargao, Philippines
- USU — Francisco B. Reyes Airport · Busuanga, Philippines
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 IAO
- SUG · Surigao Airport37 mi away
- TDG · Tandag Airport55 mi away
- BXU · Bancasi Airport73 mi away
- CGM · Camiguin Airport98 mi away
Near USU
- SJI · San Jose Airport66 mi away
- MBO · Mamburao Airport82 mi away
- RZP · Cesar Lim Rodriguez Airport99 mi away
- CYU · Cuyo Airport109 mi away
Frequently asked questions
How far is IAO from USU?
The flight distance from Siargao (IAO) to Busuanga (USU) is 430 miles (693 km, 374 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAO to USU?
A nonstop flight takes about 1h 24m 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 cheapest way to fly from IAO to USU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAO–USU that never appear on search engines, with no booking fees.