Cost from Guam Airport (GUM) to Tumon Bay and Other Destinations

Guam is a small island, and the airport is close to everywhere you are likely going. Transport costs are reasonable and predictable thanks to metered taxis.

Main routes and costs

Every taxi on Guam runs the same set meter, so the fare is a function of distance rather than a price list. Guam taxis are metered on the territory's set rates: a USD 2.40 flag, USD 4.00 for the first mile, then USD 0.80 for every quarter mile after that (Guam Visitors Bureau). The rates are the same for every taxi company, so there is nothing to negotiate. Rates are revised from time to time — check the posted card before you set off.

To Tumon Bay (hotel strip): where most tourists stay. The airport is about 5-7 km (3-4 miles) from Tumon, which on those rates works out at roughly USD 13-17 on the meter for the standard hotel run. The drive takes 10-15 minutes. Pre-booked transfers are quoted by the operator when you book.

To Hagatna (capital): slightly closer to the airport than Tumon, so slightly less on the meter. Not many tourists stay here, but some have business at government offices or cultural sites.

To Dededo (northern Guam): a 15-20 minute drive depending on traffic.

To southern villages (Inarajan, Merizo, Umatac): 30-45 minute drives. At USD 0.80 per quarter mile the meter climbs steeply over that distance, and few taxis will be eager to make the trip — a pre-booked transfer or rental car is more practical.

To Naval Base Guam / Apra Harbor area: about 15-20 minutes from the airport.

How taxi metering works

The rates are set and identical across companies: a USD 2.40 flag, USD 4.00 covering the first mile, then USD 0.80 for every quarter mile after that, plus waiting time (Guam Visitors Bureau). The meter keeps things transparent — no negotiation needed. The published rate card does not list an airport pickup surcharge or a luggage charge, so if either appears on your fare, ask what it is for before you pay.

Pre-booked transfers vs taxis

For the Tumon run, a pre-booked transfer costs more than the roughly USD 13-17 the meter will show — how much more is quoted when you book, so you can see the premium before committing. The transfer buys a meet-and-greet, a confirmed vehicle type, and no waiting in the taxi line. For solo travelers and couples, a taxi is perfectly fine. For families or groups, a transfer with a larger vehicle is worth it.

Rental car costs

Rental rates depend on the vehicle, the season and how far ahead you book — check the agency for a current quote. Fuel costs less than the US mainland. Parking at Tumon hotels is usually free or inexpensive. If you plan to explore the island — War in the Pacific sites, Ritidian Point, southern coastal drives — a rental car pays for itself quickly against the meter, which charges USD 0.80 for every quarter mile.

Hotel shuttle costs

Many Tumon resort hotels offer complimentary airport shuttles, particularly for guests booking through Japanese or Korean travel agencies. If your hotel offers this, the cost of airport transport is zero. Always ask at booking.

Tips

• US dollars are the currency. No exchange needed if you are coming from the mainland.
• Credit cards work in taxis and at rental counters.
• Traffic on Marine Corps Drive can be heavy during rush hours (7-9 AM, 4-6 PM). This affects the taxi meter and your patience.
• Tipping taxi drivers 10-15 percent is customary, same as the US mainland.

Bottom line

Budget roughly USD 13-17 for the airport to Tumon taxi, on the set meter rates. It is a short ride on a small island. If a free hotel shuttle is available, take it. If you want to explore, rent a car and skip taxis entirely.