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
To Tumon Bay (hotel strip): This is where most tourists stay. Taxi fare: 15-25 USD (metered plus airport surcharge). Pre-booked transfer: 25-40 USD. The drive takes 10-15 minutes.
To Hagatna (capital): Taxi fare: 12-20 USD. Hagatna is slightly closer to the airport than Tumon. Not many tourists stay here, but some have business at government offices or cultural sites.
To Dededo (northern Guam): Taxi fare: 20-30 USD. A 15-20 minute drive depending on traffic.
To southern villages (Inarajan, Merizo, Umatac): Taxi fare: 40-65 USD. These are 30-45 minute drives. Few taxis will be eager to make this trip — a pre-booked transfer or rental car is more practical.
To Naval Base Guam / Apra Harbor area: Taxi fare: 20-30 USD. About 15-20 minutes from the airport.
How taxi metering works
Guam taxis start with a base fare (approximately 2.40 USD) and charge per quarter mile plus waiting time. There is an airport pickup surcharge, typically 4-5 USD. Luggage surcharges may apply for oversized items. The meter keeps things transparent — no negotiation needed.
Pre-booked transfers vs taxis
For the Tumon run, the difference between a metered taxi and a pre-booked transfer is roughly 5-15 USD. The transfer costs more but includes 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 the premium.
Rental car costs
If you are renting a car, expect 40-70 USD per day from airport agencies. 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 compared to multiple taxi fares.
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 15-25 USD for the airport to Tumon taxi. 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.