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PGSN → RJAWOpen in the mapper
ROUTE DISTANCE

I Fadang to OgasawaraPGSN → RJAW

Saipan International Airport (PGSN / SPN) in I Fadang, Saipan, Northern Mariana Islands to Ioto (Iwo Jima) Airbase (RJAW / IWO) in Ogasawara, Japan is 631 nautical miles — 1,169 kilometres, or 726 statute miles — on the great circle, on an initial bearing of 338°. A business jet at Mach 0.85 and FL410 takes about 1h 50m block time in still air.

Published by Overfly · Airport data: OurAirports, · Last updated

NAUTICAL MILES
631
KILOMETRES
1,169
STATUTE MILES
726
INITIAL BEARING
338°
BLOCK TIME
1h 50m
M0.85 · FL410 · still air

Can the aeroplane make it?

Range here is usable range — book range at long-range cruise, less a reserve allowance. It is the figure that decides whether the leg closes, and it is the question most mappers do not answer.

G650ER7,300 nm usable · 9%clears
G5506,550 nm usable · 10%clears
Global 75007,500 nm usable · 8%clears
Falcon 8X6,250 nm usable · 10%clears
Falcon 7X5,750 nm usable · 11%clears
Challenger 3503,000 nm usable · 21%clears
A350-9008,250 nm usable · 8%clears
B777-300ER7,120 nm usable · 9%clears
A320neo3,150 nm usable · 20%clears
A3203,150 nm usable · 20%clears
B737 MAX 83,250 nm usable · 19%clears
B737-8002,850 nm usable · 22%clears
An-1242,950 nm usable · 21%clears
Concorde3,650 nm usable · 17%clears
King Air 2001,400 nm usable · 45%clears
ATR 721,300 nm usable · 49%clears
Dash 8 Q4001,100 nm usable · 57%clears

How far from an airport?

The worst point on the great circle is 1h 35m from the nearest suitable airport, Hagåtña (PGUM), at the one-engine diversion speed Overfly uses (430 kt in still air). A twin flying this track needs ETOPS 120 approval or more: ETOPS 120 allows up to 120 minutes from an alternate.

EQUAL-TIME POINTBETWEENTO EACH
24.3°N 141.5°EHagåtña (PGUM) and Tokoname (RJGG)1h 35m

A suitable airport here is one OurAirports classes as large with a runway of 8,000 ft or more. An operator’s real alternates also depend on weather, fire cover and approval, and its diversion speed on the type. More in equal-time points and ETOPS, explained.

The two fields

PGSN / SPN
Saipan International Airport
I Fadang, Saipan, (unassigned), Northern Mariana Islands15.1194, 145.728866 m · 215 ft elevationlongest runway 07/25 · 2,652 m
RJAW / IWO
Ioto (Iwo Jima) Airbase
Ogasawara, Tōkyō Prefecture, Japan24.7842, 141.3226117 m · 384 ft elevationlongest runway 07/25 · 2,652 m

Questions people ask about this route

How far is it from I Fadang (PGSN) to Ogasawara (RJAW)?

631 nautical miles. That is 1,169 kilometres or 726 statute miles, measured as a great circle between Saipan International Airport and Ioto (Iwo Jima) Airbase.

How long is the flight from I Fadang to Ogasawara?

About 1h 50m block time for a business jet cruising at Mach 0.85 at FL410 in still air, including 30 minutes of taxi, climb and descent. Wind moves that figure in either direction — eastbound across the North Atlantic or the Pacific it can be an hour or more. This page is deliberately still-air so the figure is stable and citable; to apply the month's average upper winds from NOAA, open the route in the mapper and switch on seasonal winds.

What is the initial bearing from I Fadang (PGSN) to Ogasawara (RJAW)?

338° true at the departure point. A great circle changes heading continuously, so this is the initial bearing, not a constant one.

Which aircraft can fly I Fadang to Ogasawara non-stop?

Of the types Overfly carries, G650ER, G550, Global 7500, Falcon 8X, Falcon 7X, Challenger 350, A350-900, B777-300ER, A320neo, A320, B737 MAX 8, B737-800, An-124, Concorde, King Air 200, ATR 72, Dash 8 Q400 clear it on usable range — that is book range less a reserve allowance.

Check it against your own aircraft
Open the route in the mapper to set cruise, flight level and reserve, edit the schedule, and add legs.
Open PGSN → RJAW
NEARBY ROUTES

For reference and planning interest. Not for operational flight planning. Distances are great circle on a sphere from WGS-84 coordinates; block times assume still air. © 2026 Overfly.Flights