← FlightMVP

Flights between Hagåtña (GUM) and Okayama (OKJ)

Antonio B. Won Pat International Airport, Guam ↔ Okayama Momotaro Airport, Japan

A direct route between Hagåtña and Okayama appears in the OpenFlights route network.

Confirming who flies GUM–OKJ

We're verifying which airlines currently operate GUM–OKJ. Current operators will appear here as our data refreshes.

Distance
2,609 km
1,621 miles
Est. flight time
3h 46m
great-circle estimate
Time difference
~1h
varies with DST
View this route on the live map →Search fares on Skyscanner ↗

Climate

Typical monthly temperatures in Guam

Jan
27°
29/24
120mm
Feb
26°
29/24
90mm
Mar
27°
30/24
70mm
Apr
27°
30/25
80mm
May
28°
31/25
110mm
Jun
28°
31/25
140mm
Jul
28°
30/25
290mm
Aug
27°
30/25
400mm
Sep
27°
30/25
430mm
Oct
27°
30/25
350mm
Nov
27°
30/25
210mm
Dec
27°
29/24
140mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Typical monthly temperatures in Japan

Jan
10°
15/5
50mm
Feb
10°
15/5
60mm
Mar
13°
18/8
110mm
Apr
18°
23/13
130mm
May
23°
28/18
130mm
Jun
26°
31/21
170mm
Jul
30°
35/25
150mm
Aug
31°
36/26
170mm
Sep
27°
32/22
220mm
Oct
22°
27/17
200mm
Nov
17°
22/12
95mm
Dec
12°
17/7
50mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Travel advisories

Japan: Normal precautions (UK FCDO) ↗

Common questions

How far is Hagåtña from Okayama?

Hagåtña (GUM) and Okayama (OKJ) are around 2,609 km (1,621 miles) apart — an estimated 3h 46m by air. Distances and flight times are great-circle estimates.

What is the time difference between Hagåtña and Okayama?

Time difference ~ 1 hour (varies with daylight-saving).

When is it warmest in Japan?

Across Japan, the warmest month on average is August, with mean temperatures around 31°C. These are country-level monthly climate normals, not airport-specific.

Is there a travel advisory for Japan?

The UK FCDO currently rates Japan as Normal precautions. Check the official source before you travel.

Distances and flight times are great-circle estimates, not booked block times.