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USU to IAO: distance & flight time
Busuanga (Francisco B. Reyes Airport) → Siargao (Siargao Airport)
430 mi
693 km · 374 nm
1h 24m
estimated nonstop flight time
Same time
time difference · heading east
See live USU→IAO fares Phone-only fares on this route — call free
Flight time details
430 miles nonstop takes roughly 1h 24m gate to gate, flying east. 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
- USU — Francisco B. Reyes Airport · Busuanga, Philippines
- IAO — Siargao Airport · Siargao, 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 USU
- SJI · San Jose Airport66 mi away
- MBO · Mamburao Airport82 mi away
- RZP · Cesar Lim Rodriguez Airport99 mi away
- CYU · Cuyo Airport109 mi away
Near IAO
- SUG · Surigao Airport37 mi away
- TDG · Tandag Airport55 mi away
- BXU · Bancasi Airport73 mi away
- CGM · Camiguin Airport98 mi away
Frequently asked questions
How far is USU from IAO?
The flight distance from Busuanga (USU) to Siargao (IAO) is 430 miles (693 km, 374 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USU to IAO?
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.
Are there nonstop flights from USU to IAO?
Nonstop service on USU–IAO depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 24m nonstop estimate.
What is the cheapest way to fly from USU to IAO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USU–IAO that never appear on search engines, with no booking fees.
Why are some USU to IAO fares phone-only?
Consolidator contracts let us sell certain USU–IAO tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.