Footlongs before boarding at GUM’s Main Terminal
Subway sits in Antonio B. Won Pat International Airport’s Main Terminal, and it’s one of the few familiar US brands you’ll spot here. Expect the standard build-your-own sandwiches on white, wheat, or Italian Herbs & Cheese, plus the usual suspects like Meatball Marinara and Cold Cut Combo. The airport location runs higher than street prices, but 6-inch subs still tend to land in the roughly $7–$10 range depending on protein and extras.
This shop operates post-security in the Main Terminal, so you clear TSA first, then eat. Typical hours track with peak flight banks, opening for early-morning departures around 05:00 and staying open into the late-night Guam–Japan and Guam–US mainland waves near 22:00, though exact times slide with the schedule. If you land on an odd-hour arrival, don’t be shocked if gates are busy but the counter is closed.
Menu is the global Subway template: tuna, turkey, ham, steak, Italian B.M.T., veggie, and the rotating “Sub of the Day” or promotional item that sometimes saves you a dollar or two on a 6-inch. You can still do footlong upgrades, double meat, and add avocado or bacon, but each extra stacks quickly on the bill. Fountain drinks come in small, medium, and large, and the cookie trio is usually the cheapest way to grab something sweet under $5.
Quality lines up with the 2-star rating: bread can sit in the warmer too long during slow mid-day periods, and veggies sometimes look tired by late evening, especially lettuce and tomatoes. If you care about freshness, order around the busier departure waves for flights leaving between 08:00–10:00 or 18:00–20:00 when turnover is highest. Toasting the sandwich helps if ingredients look a bit dry.
Tip: ask what just came out of the oven and build your sub around that bread; “Italian Herbs & Cheese from this batch” is usually the right answer.