- Keikyu Corporation has become a Platinum Partner of the awareness-building project under the project sponsorship programme. The Association announced it on 8 September 2026.
- Platinum is the tier for large sponsorships of 500 million yen or more.
- From September 2026 Keikyu will run continuous, concentrated advertising through in-train media and station poster spaces.
- The Association says it expects wide-ranging promotional support from Keikyu as the operator linking Haneda Airport with Yokohama and the Miura Peninsula.
- The in-train poster shown in the release carries the key visual and a notice about one-day tickets.
- The release does not say which stations or lines, for how long, or whether any special tickets or campaigns are planned.
Our take
Haneda Airport to Yokohama Station: that is Keikyu’s line, and it is why this sponsorship touches visitors from abroad more than any other so far. The first train out of the airport will now carry Expo posters. People along the line on the Miura Peninsula see them too. Our airport access guide already recommends Keikyu, and signposting inside those trains is a clear improvement.
After the Osada advertising group on 31 August, this is the second Platinum Partner of the awareness-building project that we know of. Street screens first, then trains.
What has not changed: Keikyu serves none of the four shuttle-bus stations (Seya, Mitsukyo, Tokaichiba and Minami-Machida Grandberry Park). Anyone coming from Haneda still changes to the Sotetsu Line at Yokohama Station. Sponsorship does not shorten that transfer.
Special tickets, guidance at the Haneda stations, where in the stations the posters go: none of it is in the release. Since the poster shown includes a one-day ticket notice, ticket promotion will probably dominate until the early-bird deadline on 18 March 2027.
Tips for visitors
- From Haneda Airport, take Keikyu to Yokohama Station, then the Sotetsu Line to Mitsukyo or Seya. The steps and the alternatives are in the access guide.
- If a poster on the train catches your eye, early-bird one-day tickets are sold until 18 March 2027. See ticket types and how to buy.
- Where to stay if you arrive late at Haneda is covered in where to stay for the Expo.
Our take
Keikyu, the railway between Haneda Airport and Yokohama, has joined the 500-million-yen-plus sponsorship tier. Visitors from abroad will now see Expo posters on the first train they board. Keikyu does not serve the four shuttle-bus stations, so the change at Yokohama Station stays the same.