The cheapest Istanbul Sabiha to Guam return flight on the radar right now is €811, flying with AirAsia X + Jin Air via one or more connections. It covers departures in November 2026, and every dated link below opens that exact SAW–GUM search on Skyscanner. The price we usually record on this route is €887. Across 15 recorded checks it has ranged between €792 and €1,245. Our sampling points to November 2026 as the cheapest month to fly Istanbul Sabiha to Guam.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Istanbul Sabiha? We track 21 other departure cities for Guam, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Istanbul Sabiha to Guam is often still worth booking within a day or two of the fare we found.