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SYO to ASM: distance & flight time
Shonai (Shonai Airport) → Asmara (Asmara International Airport)
6,125 mi
9,858 km · 5,323 nm
12h 29m
estimated nonstop flight time
-6h
time difference · heading west
See live SYO→ASM fares Phone-only fares on this route — call free
Flight time details
6,125 miles nonstop takes roughly 12h 29m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- SYO — Shonai Airport · Shonai, Japan
- ASM — Asmara International Airport · Asmara, Eritrea
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 SYO
- GAJ · Yamagata Airport42 mi away
- AXT · Akita Airport60 mi away
- KIJ · Niigata Airport69 mi away
- SDJ · Sendai Airport77 mi away
Near ASM
- MSW · Massawa International Airport40 mi away
- AXU · Axum Airport80 mi away
- MQX · Mekele Airport133 mi away
Frequently asked questions
How far is SYO from ASM?
The flight distance from Shonai (SYO) to Asmara (ASM) is 6,125 miles (9,858 km, 5,323 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SYO to ASM?
A nonstop flight takes about 12h 29m 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 Shonai and Asmara?
Asmara is 6 hours behind Shonai.
What is the cheapest way to fly from SYO to ASM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SYO–ASM that never appear on search engines, with no booking fees.