Overview of Antonio B. Won Pat International Airport (GUM)
Antonio B. Won Pat International Airport is a secondary airport in Agana, Guam, and a smaller but useful airport for low-cost and seasonal carriers. With approximately 35 documented airline-route pairings on file, it links Agana to roughly 19 direct destinations across the network. The airport operates on the Pacific/Guam timezone, which is worth noting if you are arranging a same-day onward connection.
Terminals & layout
Like most airports of its size, Antonio B. Won Pat International Airport consolidates check-in, security, and departures along a single landside-to-airside flow. Signage is colour-coded by airline alliance at most major hubs and by carrier at smaller fields. If you are flying with one of the low-cost carriers listed below, double-check the terminal, at multi-terminal airports, low-cost flights often depart from a remote pier with a longer walk and fewer dining options, so allow extra time.
Online check-in for most airlines opens 24 to 48 hours before departure and closes 60 to 90 minutes before takeoff. At Antonio B. Won Pat International Airport, plan to arrive at the terminal at least 45–60 minutes before a domestic departure and 2 to 3 hours before any international flight. Bag-drop counters often close earlier than the printed cutoff, especially for low-cost carriers. Being late to bag-drop is the single most common reason budget passengers miss otherwise on-time flights. Pre-print or download your boarding pass before leaving home; some carriers charge a fee for airport-printed boarding passes.
Lounges & airside amenities
Lounge options are limited (usually one shared lounge airside). Day-of-travel access for unaffiliated passengers may not be guaranteed during peak hours. Most travellers can also access free seating areas, water-bottle refill stations, and at least one quiet zone away from the boarding gates. If you arrive significantly early, scan the terminal map for a chapel or family room, these are often the quietest spots in any airport.
Baggage policy notes
Several low-cost carriers serve this airport, and their baggage rules are stricter than legacy airlines. Most LCCs include only a small under-seat personal item in the base fare; a full overhead-bin cabin bag and any checked luggage cost extra. Pre-pay your bags online. Gate-side excess bag fees are typically two to four times the online price. If you're connecting between two LCCs, treat them as separate journeys: bags will not check through, and you must clear security again.
Ground transport
Antonio B. Won Pat International Airport sits at coordinates 13.483°, 144.796° at an elevation of 298 feet, serving Agana and the surrounding Guam region. Travellers usually reach the terminal by a combination of public bus, regional rail, ride-share, and licensed taxi. Where rail service is available it is almost always the cheapest fixed-fare option; ride-share apps tend to be the next cheapest and most predictable; metered taxis are the most expensive but the most direct. Verify the published rates posted at the airport ground-transport desk before agreeing to any non-metered fare. Quoted prices to and from the airport are a common source of overcharging in any country.
Budget travel tips
- Fly mid-week. Tuesday and Wednesday departures from Agana are statistically cheaper than weekend departures across all carriers.
- Consider nearby alternative airports where they exist. A one-hour bus or train transfer can shave 30–50% off your fare.
- Book accommodation with free cancellation for the night of arrival in case your inbound flight is delayed and you miss the last public transport.
- Check the official airport website for live security wait times before you leave home. At peak departure banks the queue can swing from 5 minutes to 45 minutes within an hour.
Airlines serving GUM
United Airlines (UA)
United States · Active
All Nippon Airways (NH)
Japan · Active
Delta Air Lines (DL)
United States · Active
Korean Air (KE)
Republic of Korea · Active
Jeju Air (7C)
Republic of Korea · Budget · Active
EVA Air (BR)
Taiwan · Active
China Airlines (CI)
Taiwan · Active
Japan Airlines Domestic (JL)
Japan · Active
Jin Air (LJ)
South Korea · Budget · Active
Philippine Airlines (PR)
Philippines · Budget · Active
Top destinations from GUM
| Code | City | Country |
|---|---|---|
| KIX | Osaka | Japan |
| NRT | Tokyo | Japan |
| ICN | Seoul | South Korea |
| NGO | Nagoya | Japan |
| TPE | Taipei | Taiwan |
| CTS | Sapporo | Japan |
| FUK | Fukuoka | Japan |
| OKJ | Okayama | Japan |
| SDJ | Sendai | Japan |
| MNL | Manila | Philippines |
| PUS | Busan | South Korea |
| CNS | Cairns | Australia |
| HKG | Hong Kong | Hong Kong |
| HNL | Honolulu | United States |
| ROP | Rota | Northern Mariana Islands |
| ROR | Babelthuap | Palau |
| SPN | Saipan | Northern Mariana Islands |
| TKK | Chuuk | Micronesia |
| YAP | Yap | Micronesia |
Recommended reading for flying through Agana
- How to actually find the cheapest ground transport from any airport
- A 2026 comparison of every major budget airline's baggage fees
- Online check-in cutoffs, airport-printing fees, and the bag-drop trap
- Walk-in lounge prices around the world
- Why airport currency bureaux are the worst place to exchange money