Japan’s FY2026 winter flight schedule begins on Sunday, October 25 and runs through Saturday, March 27, 2027. This article converts the frequency increases and new routes announced for this period by JAL, ANA, Peach, Jetstar Japan, Skymark and foreign carriers into daily arriving seats using “weekly round trips × aircraft seats,” and sets them against the room stock, estimated settled ADR and recent occupancy of the nine prefectures that host the airports concerned. More seats do not automatically mean more hotel demand. Using range estimates that allow load factors and the share of international visitors to vary, we test, prefecture by prefecture, how much headroom the accommodation side actually has.

What Increases This Winter — Airline Announcements Sorted by Airport

First, the demand backdrop. According to the Japan National Tourism Organization (JNTO), which published the figure on September 16, international visitor arrivals in August 2026 totaled 3,098,900, down 9.6% year on year, yet 14 markets including South Korea, Taiwan, Hong Kong and the United States set records for the month of August. A slowdown in the China market is happening alongside growth in other East Asian and Western markets, and the winter schedule increases mirror this polarization. Table 1 lists the airlines’ announcements, limited to international routes whose seats increase on a net basis compared with last winter’s schedule. For a map-based view of room stock within 10 km and 20 km of 20 regional airports, see Winter Schedule Oct 25: Do 20 Regional Airports Have Enough Rooms?

Source: Compiled by the HotelBank Editorial Team from announcements by JAL, ANA, Peach Aviation, Jetstar Japan, Skymark, Korean Air, STARLUX Airlines, Thai Airways International and VietJet Air, and from industry reports. Arriving seats/day = increase in weekly round trips × seats ÷ 7 (one way, arriving in Japan). Calculated for weeks on or after the start date of each increase.

Korean Air needs care when reading Table 1. The carrier announced that after its integration with Asiana Airlines (December 17, local time) it will expand its Japanese gateways from 15 to 19 airports, with Japan–Korea operations reaching 412 weekly round trips (about 58 a day on average). However, the Sendai and Miyazaki routes are flights Asiana already operates that switch to Korean Air flight numbers, and most of the increases on Haneda–Gimpo (from 21 to 42 weekly round trips), Narita–Incheon (35 to 56) and Kansai–Incheon (28 to 63) likewise come from existing Asiana flights being combined under new flight numbers. The only routes that add seats on a net basis compared with last winter are the new Hiroshima route and the resumed Oita route, so this article converts only these two.

The JAL Group will operate Haneda–Helsinki daily through the winter and expand use of the A350-1000 (239 seats) on its London and Paris routes, increasing seats offered on direct Europe flights by 16% year on year. Because the aircraft for the Helsinki route is not stated in the announcement, it is excluded from the seat conversion, but given that last winter’s schedule was 3–4 weekly round trips, Haneda’s European capacity will be thicker than the figures in Table 1 suggest. Haneda–Doha will be suspended throughout the second half of the fiscal year. ANA plans to raise international flight numbers to 104% of the same period last year and Peach to 109%, and Narita–Bangkok and Narita–Singapore will also gain frequencies for the full season, but these are excluded from the conversion because the breakdown of flight numbers has not been published.

The domestic network reshuffle also feeds directly into hotel demand. Peach will raise Kansai–New Chitose by two round trips from last winter to a base of six a day (up to nine during the year-end holidays and the Sapporo Snow Festival) and Kansai–Naha by one round trip to a base of four a day (up to six), planning 110% of last year’s domestic flights overall. Jetstar Japan will add 41 round trips on Narita–New Chitose, 24 on Narita–Fukuoka, 21 on Kansai–Naha and 2 on Narita–Kumamoto, while Skymark will add one daily round trip each on Ibaraki–New Chitose, Chubu–New Chitose, Kobe–Sendai and Ibaraki–Kobe, operating 82 daily round trips on 23 routes. ANA will reorganize flights at Itami, raising Itami–Sapporo from 5 to 6–7 daily round trips, Itami–Hakodate from 1 to 2 and Itami–Naha from 4 to 5–6, while cutting flights between Itami and Haneda, Fukuoka, Matsuyama and Oita. Table 2 converts these into seats by arrival prefecture.

Source: Compiled by the HotelBank Editorial Team from announcements by Peach Aviation, Jetstar Japan, Skymark and ANA. Seat counts are the published specifications of Skymark (737-800, 177 seats), Peach (A320, 180 seats) and Jetstar Japan (A320, 180 seats).

Converting Increases into Daily Seats — Narita 592, Naha 242

The conversion is simple. For each route, daily one-way (arriving in Japan) seats are calculated as “increase in weekly round trips × aircraft seats ÷ 7” and totaled by the prefecture where the airport is located. The baseline is the week in which all increases operate at the same time, so routes that start later (Narita–Taipei on December 26, Kansai–Da Nang on December 20, Chubu–Bangkok on January 18, and so on) do not contribute in earlier weeks. For the two routes whose aircraft have not been announced (Narita–Mumbai and Oita–Incheon), we use the seat count of the airline’s aircraft in the same class as a placeholder, and the figures will move depending on the aircraft actually deployed.

Source: Compiled by the HotelBank Editorial Team from airline announcements. Net international increases only; daily one-way seats in the week when all increases operate simultaneously. Aichi and Hokkaido vary by period and aircraft.

Narita stands out at 592 seats a day because four routes overlap from December 26: the Shanghai resumption (186 seats), the new Incheon route (180), more Mumbai flights (123) and more Taipei flights (103). Haneda, by contrast, adds only the 123 seats of the Milan route, but as noted above this is because the Helsinki route and larger aircraft on Europe routes are not included in the conversion; the real increase is a notch thicker. Naha gains 242 seats from Japan Transocean Air’s double-daily Taipei service (165 seats) and Jetstar Japan’s Kaohsiung route (77), and Hiroshima gains 182 from Korean Air’s Incheon route. In Aichi, Chubu–Taichung rises to 7 weekly round trips in November before falling back to 3 from December, and Thai Airways’ late-night flight is added from January 18, so the figure swings between 81 and 271 seats depending on the period. Hokkaido gains 54 seats from two more weekly Hakodate–Taipei round trips, plus a further boost to 163 seats a day from December 1 to February 28 when the route is upgraded to the A330-900 (297 seats).

The map plots the net international increases from Table 1 at each airport. Circle size shows daily arriving seats, and the pop-up shows the prefecture’s room stock and seats per 1,000 rooms.

Source: Compiled by the HotelBank Editorial Team from airline announcements and MetroEngines Research. Circle area represents daily arriving seats in the week when all increases operate simultaneously (net international increase, one way).

Seats Versus Rooms — Stock in Nine Prefectures and Winter Estimated Settled ADR

Now for the accommodation side. Table 3 sets each prefecture’s number of properties and rooms listed on major booking sites against daily arriving seats and seats per 1,000 rooms. It also compares estimated settled ADR for November 2026 to January 2027 with the same months a year earlier. Figures from November onward are estimates based on listed price levels at the time of the survey and, as noted later, may narrow with last-minute price adjustments.

Source: Compiled by MetroEngines Research and the HotelBank Editorial Team. Room stock is based on listings on major booking sites (as of September 30, 2026). ADR is the prefectural median of estimated settled ADR (tax-excluded equivalent); N=234–1,111 properties per month. November 2026 – January 2027 are estimates based on listed price levels at the time of the survey.

Source: Compiled by MetroEngines Research and the HotelBank Editorial Team. Year-on-year change in estimated settled ADR (November 2026 – January 2027 are estimates based on listed price levels at the time of the survey). N=234–1,111 properties per month.

The weight of the seats is heavily diluted by the depth of room stock. Tokyo has 184,435 rooms and Osaka 113,150, so the Haneda and Kansai increases amount to only about one seat per 1,000 rooms. By contrast, Chiba gets 11.7 seats, Hiroshima 6.6, Oita 5.7 and Kumamoto and Aichi 4.9, an order of magnitude heavier around regional airports. That said, travelers arriving at Narita mostly stay in Tokyo’s central wards, so the seats do not map one-to-one onto rooms in Chiba. Combining Chiba and Tokyo gives 715 seats against 235,140 rooms, diluting the figure to 3.0 seats per 1,000 rooms. Room capacity around Narita itself, within 10 km of the airport, is a separate question that depends on accommodation close to the airport rather than on the prefecture as a whole.

Year-on-year estimated settled ADR shows double-digit gains in Chiba, Hiroshima, Aichi and Hokkaido in every month from November to January, and Kumamoto is also in double digits for November and December (+8.4% in January). Osaka, on the other hand, is at −4.8% in November and −3.4% in December, and Oita shows small declines in all three months, listing below last year’s levels. The point to stress is that values from November onward are estimated from listed prices at the time of the survey. While check-in is still far off, the release of low-price plans lags, so year-on-year figures for regional prefectures tend to run high, and actual settled levels may narrow as check-in approaches. Rather than the size of the year-on-year change itself, it is more sensible to read the difference in direction between prefectures listing below last year, such as Osaka and Oita, and the rest.

How Many International Visitors Is That? — Range Estimates with 75–85% Load Factors and a 30–60% Visitor Share

Seats are supply and do not translate directly into hotel demand. Here we assume load factors of 75–85% and a 30–60% share of international visitors among arriving passengers, and estimate daily international visitor arrivals as a range from a lower bound (75% × 30%) to an upper bound (85% × 60%). Both are assumptions, and actual results vary widely by route. For example, the Kumamoto–Taichung route has been reported to run at a load factor of around 80%, including business demand related to TSMC.

Converting arrivals into rooms requires assumptions about length of stay and guests per room. This article assumes a two-night stay in the prefecture and two guests per room. In that case, “rooms needed per day ≈ international visitor arrivals per day”; a three-night stay multiplies this by 1.5, and one guest per room doubles it. Table 4 compares these room needs with daily vacant rooms derived from September 2026 occupancy (estimated, based on OTA-listed inventory).

Source: Compiled by MetroEngines Research and the HotelBank Editorial Team. Visitors/day = arriving seats × load factor (75–85%) × visitor share (30–60%). Vacant rooms = (1 − occupancy) × rooms covered by the occupancy calculation (daily average for September 1–30, 2026; coverage: Chiba 314 properties / 23,165 rooms, Aichi 328 / 33,635, Hiroshima 215 / 14,797, Kumamoto 284 / 12,706, Okinawa 708 / 36,220, Oita 337 / 9,817, Hokkaido 679 / 53,149, Osaka 410 / 59,647, Tokyo 805 / 104,583). Occupancy is an estimate based on how inventory sold on OTAs is being absorbed and differs from a property’s actual overall occupancy.

Source: Compiled by MetroEngines Research and the HotelBank Editorial Team. The bottom of each bar is the lower bound (75% load factor × 30% visitor share) and the top is the upper bound (85% × 60%). Assumes a two-night stay and two guests per room.

In short, there is no prefecture whose rooms would be filled by the net international increases alone. Even Chiba, with the highest share, reaches only 3.5–7.9% of daily vacant rooms, and Hiroshima 2.4–5.5%. However, these shares assume that vacant rooms across the prefecture can be used evenly, whereas actual demand concentrates in city centers with good airport access. Viewed locally, such as central Hiroshima, central Kumamoto or weekends in Naha, an extra few dozen to a hundred guests is enough to move prices. The fact that seats per 1,000 rooms are large in regional prefectures but below one in Tokyo and Osaka shows where the room for pricing lies.

Table 4 is the middle case, assuming “two nights in the prefecture, two guests per room.” When length of stay and guests per room change, rooms needed change in proportion to “nights ÷ guests per room.” Table 4-2 shows, for the upper-bound case of an 85% load factor and a 60% visitor share, how the share of vacant rooms moves when these two assumptions vary, for the five prefectures where the seats weigh most.

Source: Compiled by MetroEngines Research and the HotelBank Editorial Team. Upper-bound visitors/day (85% load factor × 60% visitor share) × nights ÷ guests per room, divided by the daily vacant rooms in Table 4 (based on September 2026 occupancy). Bold indicates the same two-night, two-per-room case as Table 4.

Under the strictest assumption of “three nights, one guest per room,” Chiba’s upper bound exceeds 20% and Hiroshima’s tops 15%. With one night and two guests per room, on the other hand, even Chiba stays just under 4%. The width of the range estimate opens up more with length of stay and guest mix (business travelers who often stay alone versus leisure travelers in groups of two or more) than with load factors or visitor share, so in practice it makes sense to check the guest mix route by route and then judge which column of Table 4-2 is closest.

Domestic frequency increases are not included in Table 4 because the visitor-share assumption does not apply to them. As Table 2 shows, Hokkaido gains more than 700 seats a day from increases out of Kansai, Ibaraki, Chubu and Narita, and Okinawa more than 280 seats a day from Kansai. Hokkaido has the highest September occupancy of the nine prefectures at 90.3%, and Kansai–New Chitose is set to rise to as many as nine round trips a day during the Snow Festival, so in the Sapporo area this winter domestic and international travelers will continue to compete for the same inventory.

How Much Will Accommodation Capacity Grow? — 16 Properties and 1,879 Rooms Opening in Nine Prefectures During the Winter Schedule

Next, we add up the properties opening during the winter schedule. Table 5 totals, by prefecture, the properties with opening dates registered between October 25, 2026 and March 27, 2027, as far as MetroEngines Research can track. Opening dates are based on confirmed listings on major booking sites, and since listings appear a few months before opening, the number of properties opening late in the period may grow as more listings appear.

Source: MetroEngines Research & Consulting (based on confirmed OTA listings, N=21 properties). Listings appear a few months before opening, so figures for later months may increase as more listings appear. The opening date of Solaria Nishitetsu Hotel Osaka Hommachi is from Nishi-Nippon Railroad’s announcement (December 18), and that of The Grand Castle Naha Shurijo is from Hewitt Resort’s announcement (rebrand opening on January 1, 2027).

The nine prefectures total 16 properties and 1,879 rooms (excluding Miyazaki’s single unit), but Naha’s 333 rooms are a rebrand of the current DoubleTree by Hilton Naha Shuri Castle, simply a change of sign on existing rooms. Excluding it, the net increase is 1,546 rooms, just 0.2% of the roughly 620,000 rooms of existing stock in the nine prefectures. In other words, the extra winter seats will be absorbed almost entirely by existing rooms. Hiroshima’s 305 rooms are relatively large at 1.1% of existing stock, but 157 of them are in a hostel format, and whether they match the guest profile expected on Korean Air’s Incheon route needs separate consideration.

We also add the pipeline based on construction plans. As far as can be identified from building confirmation applications in the Ministry of Land, Infrastructure, Transport and Tourism’s “Statistics on Building Construction Starts,” projects registered for completion during the winter schedule include 130 rooms in Dogenzaka, Shibuya-ku, Tokyo (Mitsubishi Estate and others; completion scheduled for March 2027), 220 rooms in Dojimahama, Kita-ku, Osaka (Mitsubishi Estate Residence; February 2027) and 126 rooms at Minami 7-jo Nishi 4-chome, Chuo-ku, Sapporo (Tokyu Land; February 2027). However, scheduled completion is not the opening date; opening usually follows several months later after fit-out and permits. *Based on building confirmation applications at the time of the survey. The number of projects and rooms is expected to increase as further applications are filed, so please treat these as the lower bound of the confirmed pipeline at present.

Recent Occupancy — Prefectures Near Capacity and Prefectures with Headroom

Finally, we group the prefectures by occupancy over the last two months (estimated, based on OTA-listed inventory). The chart shows daily averages for August 2026 (August 1–31) and September 2026 (September 1–30) in the 14 prefectures with airports.

Source: Compiled by MetroEngines Research and the HotelBank Editorial Team. Daily average occupancy (estimated, based on OTA-listed inventory). Coverage ranges from 112 to 805 properties and 6,173 to 104,583 rooms depending on the prefecture (September 2026). An estimate based on how inventory sold on OTAs is being absorbed; it differs from a property’s actual overall occupancy.

Six prefectures had September occupancy of 88% or higher: Hokkaido (90.3%), Aichi (90.4%), Tokyo (89.8%), Hiroshima (88.5%), Fukuoka (88.3%) and Kumamoto (88.0%), followed by Miyagi (87.9%). Aichi rose 7.9 points from 82.5% in August, lifted by autumn trade show and event demand. At or below about 80% were Osaka (80.4%), Oita (78.8%), Miyazaki (78.4%) and Ibaraki (78.3%), with Chiba (83.5%), Okinawa (86.7%) and Hyogo (86.3%) in between.

Combining this occupancy with the seat weights in Table 3 divides the nine prefectures into three groups. The first is Hiroshima, Kumamoto and Aichi, where “the seats weigh heavily and occupancy is also high.” An extra 4.9–6.6 seats per 1,000 rooms lands on 88–90% occupancy, so on weekends and event days in city centers with good airport access, inventory is likely to fill up first. The double-digit year-on-year gains in winter estimated settled ADR can be read as listings that already price in this localized tightness. The second is Chiba and Oita, where “the seats weigh heavily but occupancy has headroom.” Chiba has the heaviest addition at 11.7 seats per 1,000 rooms, but September occupancy was 83.5%, and given that Tokyo’s central wards rather than the Narita area act as the main receiver, inventory within the prefecture has room to absorb it. Oita gains 5.7 seats from the resumed Incheon route, but its September 2026 occupancy was 78.8% (estimated, based on OTA-listed inventory) and its winter estimated settled ADR is down year on year, making it the prefecture with the most room to reflect the added flights in its rates. The third is Tokyo, Osaka, Hokkaido and Okinawa, where “the seats weigh little and existing demand dominates.” The net international increase is only 0.6–4.5 seats per 1,000 rooms, and winter market conditions will be determined more by existing inbound and domestic demand and the event calendar than by the added flights.

Summary — Seats Won’t Fill Prefectures, but They Will Move Weekends Near Airports

Converted into seats, the net international increases in the winter 2026 schedule come to 592 at Narita, 242 at Naha, 182 at Hiroshima, 120–130 at Haneda and Kansai, and just over 100 at Kumamoto and Oita. Per 1,000 rooms, that is 11.7 seats in Chiba, 6.6 in Hiroshima, 5.7 in Oita and 4.9 in Kumamoto and Aichi, versus 0.7 in Tokyo and 1.2 in Osaka, an order of magnitude heavier around regional airports. Even when converted into international visitors at a 75–85% load factor and a 30–60% visitor share, the share of daily vacant rooms across a prefecture peaks at 3.5–7.9% in Chiba, not enough to fill a prefecture. Meanwhile, net new accommodation in the nine prefectures is only 1,546 rooms, or 0.2% of existing stock, so the increase will be absorbed by existing rooms. In Hiroshima, Kumamoto and Aichi, where occupancy has reached 88–90%, city-center weekends are likely to fill first, while Oita and Osaka, which have occupancy headroom and winter estimated settled ADR listing below last year, still have room to reflect the added flights in their rates.

All of these figures are estimates based on the airlines’ announced flight numbers and on provisional seat counts, load factors and visitor shares. Results will move with aircraft changes, further additions or withdrawals of flights, and adjustments to listed prices from November onward. Once the winter schedule starts, the practical next step is to track inventory absorption by day of the week at the level of municipalities within airport access zones rather than whole prefectures.

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