Cheapest Flights to Tokyo: Why We Flew Into Osaka Instead (and What We Paid)

Short answer: the cheapest flights to Tokyo are rarely nonstop flights into Tokyo. You usually save by being flexible on three things: the dates (avoid cherry blossom season, Golden Week and New Year), the airport (Osaka Kansai is often worth comparing with Narita and Haneda), and the route (one stop, sometimes with a long connection). Then track the price instead of checking it by hand every day.

Searches for “cheapest flights to Tokyo” have been climbing this month, so here is what we actually did for our own Japan trip in spring 2026, what it cost, and the official tools and rules worth knowing before you book. We are a family of four from Lisbon; you can read about the trip itself in our Japan with teenagers overview.

What we paid: four adults, London to Osaka via Shenzhen

These numbers come straight from our booking confirmation, not from memory:

• Booked: 27 October 2025 on Gotogate, an online travel agency, about five months before departure.
• Route: London Heathrow to Osaka Kansai (KIX), one stop in Shenzhen, China, with an overnight connection each way. We flew into Osaka, not Tokyo.
• Dates: out on Saturday 28 March 2026, back on Saturday 11 April 2026.
• Journey time: 31 h 55 min on the way out, including the connection (21:10 from London, landing in Osaka at 14:05 two days later) and 34 h 50 min on the way back.
• Price: €5,331.85 return for four adult tickets, so about €1,333 per person. Our teenagers count as adults on flights.
• Extras: separate flights between Lisbon and London, and a hotel room at Shenzhen airport on both nights of the connection.

Was it a bargain? Not really, and we would not pretend otherwise. We were travelling in late March and early April, which is cherry blossom season and one of the busiest times of the year in Japan. What the route did give us was a fare we were happy with for those dates, at the cost of two long travel days. With two teenagers that trade-off was fine; with small children we would think harder about it.

One more thing from our inbox: four days before departure, Gotogate emailed us a schedule change from the airline (the Shenzhen arrival moved by a few minutes). Long one-stop itineraries change more than you expect, so read every email from your booking site in the weeks before you fly.

Tokyo or Osaka? Why the airport matters

Tokyo has two international airports, Narita and Haneda. Osaka has Kansai International (KIX). Google Flights itself points out that fares can be cheaper at different airports, and its “Cheapest” tab includes itineraries that use different airports or self-transfers (Google Flights help).

For most first-time visitors this matters because the classic route through Japan is Tokyo, Kyoto and Osaka anyway. The fastest Nozomi bullet trains link Tokyo and Shin-Osaka in about 2 hours 21 minutes, according to JR Central. That means flying into Osaka and taking the train to Tokyo (or the other way round) is a realistic option, not a detour.

That is what we did: we started in Osaka, went on to Kyoto, Hakone and Tokyo, and took the Shinkansen from Shinagawa back to Shin-Osaka for our flight home.

When are flights to Tokyo cheapest?

There is no magic day, but the official sources agree on when Japan is busiest, and busy usually means expensive:

• Cherry blossom season (late March to early April) and autumn foliage (September to November) are the most popular times to visit, according to the Japan National Tourism Organization (JNTO).
• Golden Week (late April to early May), Obon (mid-August) and the New Year holidays (late December to early January) are Japan’s big domestic travel periods, when transport and hotels are crowded and prices are often higher (JNTO).
• JNTO names June (rainy season) and weekdays in January and February as the off-season. Tokyo and Osaka get little snow and many clear days in winter (JNTO).

If you are reading this in late 2026 and want a cheap first trip, a weekday departure in January or February is the window to search first. If you have your heart set on cherry blossoms, as we did, book early and accept that you are paying peak-season prices.

How to find the cheapest fare to Tokyo (free tools)

We are not going to promise a secret trick. These are the official features of Google Flights, as described in its help pages and Google’s own guide:

1. Search Tokyo and Osaka. Put both Tokyo airports and Osaka Kansai in the destination, or use multi-city to fly into one and out of the other.
2. Use the date grid. It shows how the price changes if you leave or return a day or two earlier or later.
3. Open the price graph. If your dates are flexible, it shows fare trends by week or month for your trip length.
4. Turn on price tracking. You can track your exact dates or “Any dates”. Google emails you when the price changes significantly, and on some routes it also warns you when prices are likely to go up (Google Flights help).
5. Check the “Cheapest” tab, carefully. It includes online travel agents and itineraries with trade-offs such as self-transfer of luggage or changing airports. Read exactly what you are buying.

Google’s guide also mentions the broad patterns most travellers already suspect: book international trips on the early side, consider a layover, and compare midweek departures with weekend ones. In our case, booking five months ahead and accepting a long layover is exactly how we ended up with our fare.

Before you book a cheap connection: three checks

• Overnight connections need a plan. Ours meant a night in an airport hotel each way. Check whether you need to pass through immigration at the connecting airport, and the entry rules for your passport there, before you book.
• Total journey time. Over 30 hours each way is a lot of your holiday. Count the extra hotel night and meals when you compare fares.
• Who you call if something changes. If you book through an online travel agent, changes go through them, not the airline. Keep their app or emails handy.

New from 1 November 2026: Japan’s tax-free shopping now works as a refund

If your cheap flight lands in Japan on or after 1 November 2026, one thing has changed since our trip. Japan has switched its tax-free shopping for visitors to a refund method. According to Japan Customs and the Japan Tourism Agency:

• You now pay the full price including consumption tax at tax-free shops (10% on most goods, 8% on food and non-alcoholic drinks).
• Purchases of ¥5,000 or more (before tax) per store per day qualify. The old split between general goods and consumables, and the ¥500,000 cap on consumables, are gone.
• Before you check in your bags on departure day, you scan your passport at a tax-free kiosk in the departure lobby. A green result means you are done; a red result means customs wants to see the goods.
• At Narita, Haneda, Kansai, Chubu, Fukuoka, New Chitose and Naha you can also do this on your phone with Visit Japan Web, over a dedicated Wi-Fi network in the departure lobby.
• You must do it within 90 days of the purchase, and you need every item on a receipt with you. If one item from a receipt is missing or has been eaten, none of that receipt is refunded.
• The refund itself comes from the shop or its refund service, to a card, another cashless method or in cash, depending on the shop. Kansai Airport, for example, has cash refund counters after passport control.

The practical takeaway for a family: keep tax-free shopping in your cabin bag until you have done the customs check, do not open the snacks you bought as gifts, and get to the airport early. Japan’s Tourism Agency is clear that neither the airline nor customs will compensate you if you miss your flight doing the procedure. Nippon.com has a good summary of why the system changed.

FAQ

What is the cheapest month to fly to Tokyo?
It depends on your departure city, so check the Google Flights price graph for your route. As a rule, avoid Japan’s peak periods (cherry blossom season, Golden Week, Obon, New Year and autumn foliage) and look at June and weekdays in January and February, which JNTO lists as the off-season.

Is it cheaper to fly into Osaka than Tokyo?
Sometimes. It was the option we took, but it depends on the route and dates. Search both and remember that the train between Tokyo and Osaka takes around two and a half hours.

How far ahead should I book flights to Japan?
Google’s own advice is to book international trips on the early side, and to use price tracking to see whether prices are likely to rise. We booked five months ahead for a peak-season trip.

Do I still get tax-free prices in Japan?
Not at the till. For purchases from 1 November 2026, you pay tax and claim it back at the airport when you leave Japan, as explained above.

Keep reading: Japan gluten-free with teenagers · Tokyo in four days · Osaka: arrive tired, leave obsessed · Is the Hakone Freepass worth it? · Universal Studios Japan tickets for a family

Prices, timetables and rules checked against the official sources linked above on 30 October 2026. Always confirm with the airline, the shop and Japan Customs before you travel.