Antonio B. Won Pat International Airport on Guam is United Airlines' Western Pacific hub and one of the most unique stations in the airline's network. United is by far the dominant carrier at GUM, operating the vast majority of flights.
Guam serves as a critical connecting point between the US mainland, Japan, the Philippines, and the Micronesian islands. United's presence here dates back decades and includes the legendary Island Hopper route.
The United Island Hopper (UA154 westbound / UA155 eastbound) is one of aviation's most legendary routes. A single 737 flies from Honolulu to Guam (or reverse) with up to 6 stops across the remote Pacific:
For many of these islands, United is the only commercial air service connecting them to the outside world. The route is a lifeline for Micronesian communities and a bucket-list flight for aviation enthusiasts.
GUM operates in Chamorro Standard Time (ChST, UTC+10) with no daylight saving time. Typhoon season runs roughly June through November, with the peak in August–October. Tropical weather can cause significant disruptions.
The airport has a single main terminal. United's operations are concentrated in the international arrivals/departures area.
Check the Delays & Weather tab on The Blue Board for real-time GUM status.
UA154/UA155 — a multi-stop 737 route connecting Honolulu to Guam via Majuro, Kwajalein, Kosrae, Pohnpei, and Chuuk. One of aviation's most unique flights.
Approximately 8-12 daily flights, including NRT, HNL, MNL, and Island Hopper service through Micronesia.
Check the Fleet tab for Starlink-equipped aircraft on GUM routes.