$3 gets you from HNL to Waikiki, Ala Moana, or Downtown
TheBus Route 20 runs from Daniel K. Inouye International Airport (HNL) to Downtown, Ala Moana Center, and Waikiki for $3, with buses roughly every 20–30 minutes from about 5am to midnight. Think 50–70 minutes end to end depending on traffic and time of day, and expect slower runs in the late afternoon.
Stops sit on the median outside Terminals 1, 2, and 3 on the upper departures level; look for TheBus signs showing “20 Airport–Waikiki–Ala Moana.” Locals on r/Hawaii call it the “default airport bus” because it’s predictable, even if it winds through town instead of taking a straight shot. If your hotel is near Ala Moana Center or along Kuhio Avenue, 20 drops you close without a transfer.
Service runs most of the day but thins out late: riders report that after around midnight, waits can stretch to 30–60 minutes and some trips don’t cover the full route. Official frequency is every 20–30 minutes, yet real-world gaps near shift changes or overnight can feel longer than the schedule suggests. Don’t plan on Route 20 as your only option for a 1am arrival.
Figure 50–70 minutes from HNL to central Waikiki in normal traffic, and closer to an hour in the afternoon according to r/solotravel and r/travel posts. Apps often show rosier times, but comments from visitors say their actual ride ran about 60 minutes. It’s still a big savings versus a $40–$50 Uber or taxi into town.
This is regular city bus service, not a dedicated airport coach, and riders on r/Hawaii warn it can get packed during airport staff shift changes around 6–8am and 2–4pm. You pay at the front with exact $3 cash or HOLO card, then carry your own bags; drivers expect luggage out of the aisle and small enough to keep near you. Large checked bags at those peaks are a pain and sometimes get you passed up if the bus is full.
Regulars suggest checking the official HEA/TheBus tracker and only walking to the stop once your Route 20 is 10–15 minutes away. That trick matters at HNL, where the median can be hot and noisy by midday and the walk from Terminal 1 to the main stop can take 5–10 minutes with bags. Some locals ride 20 only as far as Ala Moana, then switch to more frequent Waikiki routes like 8 or 13 for the last 10–15 minutes.
- Step 1: Exit Terminals 1, 2, or 3 to the upper departures roadway and walk to the center median bus stops signed for TheBus.
- Step 2: Check the HEA/TheBus live tracker and confirm “Route 20 Airport–Waikiki–Ala Moana” is 10–15 minutes away before committing to the stop.
- Step 3: Have $3 in exact cash or a loaded HOLO card ready as you board at the front door.
- Step 4: Choose a seat where your luggage stays off the aisle; avoid boarding with more than one big suitcase during peak worker shifts.
- Step 5: For Waikiki, watch the onboard display and get off near Kuhio Avenue stops; for Ala Moana, exit at Ala Moana Center, or transfer there to Routes 8 or 13 if you want a quicker hop into deeper Waikiki.
One last tip: if your flight lands after 11pm, price out Uber or a cab as a backup in case the 20’s final runs are delayed or already done for the night.