Anyone used TTP to do an international transfer? Have to transfer from NRT to HND on my way to Korea. Can I use TTP and if so do I need to fill out the pre-entry form that has the address on it?

Even if you are just transiting, an NRT→HND transfer requires you to clear immigration at Narita and then exit Japan again at Haneda.
If you’re enrolled in the TTP program, use it as you normally would when entering Japan.
On forms requiring an “address in Japan” (e.g., Visit Japan Web), you can enter your onward flight details — for example:
“Same-day transit: connecting to JL0002 from HND to SFO on Oct 20, 2025.”

Perfect this is exactly what I needed to know thanks. Just did not know what to put for address.

I am planning to transit NRT from a HA flight (from the US) to a QF flight on a separate ticket. Unfortunately, HA's policy doesn't allow interlining bags on separate tickets, so I'm expecting to have to claim luggage and enter Japan to re-check it. However, I will be travelling with somewhere between 3 and 12 bottles of wine, which is above the duty free limit. Worst case, I'm expecting to have to pay the 150JPY/bottle duty. What I'm trying to gauge is how long this whole process might take, and anything I can do to expedite it? My layover is 4 hours (assuming inbound is on time).

What time does your HA flight land? If the flight is late and you misconnect, do you have a backup plan?

Even if you arrive into NRT at the busiest hour and budget 90 minutes for immigration and customs, you’ll have plenty of time.

I would still ask the HA agent to try and check the bags through, you might find one willing to do so. If both tickets were on the same PNR it would make through-checking easier.

Thanks for the reply. HA flight is due in at 4pm (HA823 from SEA), QF flight leaves at 8pm. I'm definitely going to try to get it through-checked, I'm optimistic out of SEA I can find an agent who knows how and is willing to help. There are other flight options in a worst case scenario, though I may have to overnight - but hoping it will be smooth sailing!

I have a 4.5 hour layover at Haneda next week (arriving in T3 and departing from T2 International); arriving flight is scheduled to land at 04:50 but it seems like it's generally been arriving early.

Should I just wait for the first bus to T2 or transit landside? It's not like anything's open that early anyway, but landside still seems more exciting than a waiting room...

I couldn't find how to enter that in VJW; how would I get it to let me enter that instead of having to enter a postcode?

At that time in the morning, I don't think there is anything open. Landside seems like a waste of time to me but YMMV.
If VJW can't handle transit, you will need to fill in a paper form. Another reason to stay landside IMO. YMMV.

Check in opens at 5:40 (self service bag drop) and 6:00 for regular counters. Meaning security will probably not be open until around that time, so you might spend the time waiting landside in T2.

I figured at worst if I get through immigration closer to 05:00 then I could just pass time in that onsen, but thanks for the info! I guess I'll just play it by ear depending on when my flight actually lands, I just needed a sanity check on what to do since I assume the waiting area for the trasnfer bus is probably not especially comfortable anyway...

At least it doesn't ask for a specific accommodation name; I filled it out anyway but with the airport's postcode and phone number haha.......

As of a couple of months ago, the biggest issue I've had is waiting for bags to come up. Immigration with a Residency card and TTP (along with a VJW filled out just in case) hasn't been more than about 15 minutes when the lines get backed up. Sometimes it take 30-45 minutes for the bags to come up. It's even worse during Rush Hour when the Immigration lines really back up.
I've had a couple of times when my AA flight due in at 0505 is early and things still haven't really opened (woke) up and things tend to be slower as they open more lines as more staff shows up.

Limo bus
 

Today was the first time I can recall in which the Limo Bus to TYO actually arrived late. 50 minutes late getting into NRT.

I can no longer stand by what I’ve always said for years, that Tokyo’s Limo Bus never runs late.
There were no accidents, just multiple pockets of congestion. Nothing out of the ordinary for Tokyo but just more numerous than usual.
Obviously it’s not their fault, and there’s a disclaimer on their website that traffic delays happen. Nonetheless in Jpn usually you’d hear some sort of an acknowledgment from the driver regarding the massive delay. But there was none whatsoever.

If you never experienced delays coming from Narita, you have probably been quite lucky. The rush to get back after New Year's probably congests the road quite a bit. Last night of a long weekend, end of Obon or GW, things like that can lead to quite some delays going towards Tokyo.

I have never been delayed going to Narita though, but in reality that schedule is buggered quite a bit. I used to consider not being 20 minutes early as being late.

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The schedule has always been padded, as you say. That’s probably the main reason why I have never been on a bus that arrived late even though we hit congestion all the time. Actually I should amend that to say I have never gotten to HND or NRT late on Limo Bus… to be honest, I have not been as concerned with going in from the airport.

I’ve avoided visiting during obon and GW, but I fly out around this time almost every year. The interesting thing is that Google map had us avoiding Yokohama Bay Bridge en route to NRT, but the driver went that way anyways. (Yokohama Bay Bridge is the normal way from YCAT towards NRT). I thought the bus company knew something that we didn’t know, but that was not the case.

Flying ANA SGN-NRT/HND-SYD later this month. What's the best way to transfer from NRT to HND with two large cases (20kg x2), one rollerboard and a backpack? I will arrive NRT at 15:10 and leave HND at 22:45 so plenty of time. The limousine bus allows a maximum 2 checked bags onboard, my rollerboard is full size carry on and I will have a regular size backpack. Do I try my luck with the bus or should I opt for a direct train (unfamiliar with this). I have used the bus option before but never had excess luggage. I'd like to get to HND as quickly as possible, check both bags and leave the airport to go into Tokyo to enjoy a meal before returning back to the airport around 8pm.