Flights Bangkok to Tokyo (BKK-HND): Airlines, THB Fares

Bangkok to Tokyo Haneda runs to the closer of Tokyo’s two main airports, set near the bay and a short train ride from the city centre. The route carries Thai tourists, business travellers who value Haneda’s proximity to central Tokyo, the Thai community in Japan, and students. Around 21 flights a week make it a dependable daily-plus link.

Block time is about 6 hours. Travellers choosing between Tokyo’s airports often pick Haneda for the shorter, simpler transfer into the city, particularly for a business trip or a short visit.

Corridor profile

The BKK–HND corridor runs about 21 departures a week across 3 carriers, with an average block time of 6.0 hours, and the lowest fare the feed returned for this route is ฿6,741. The frequency figure counts every carrier on the route combined, not any single airline.

Our own demand score. This corridor scores 8/10. That is an editorial ranking we use to prioritise how deeply we cover a route — it is not a passenger count and not a price index. A high score means a corridor people search and where options exist, which usually means price competition. A low score does not mean a bad route; it means fewer options, and where options are few, flexibility gets expensive.

What frequency tells you when plans break. 21 weekly departures is ~3.0 departures a day — the next departure is usually same-day or next-day. That is why frequency matters more than price for anyone with a fixed commitment at the other end. A thin corridor deserves a buffer day before anything that cannot move, not because the airline is poor but because there is no spare inventory to shift you onto.

Airlines & baggage

Baseline baggage on BKK–HND runs 30–46 kg across the 3 of 3 carriers on the route for which we hold a row. These are carrier reference baselines, not entitlements attached to every ticket: cabin class, fare brand and frequent-flyer status all change the weight you actually get.

Some items are not measured in kilograms alone. Sports equipment, instruments, pushchairs and oversized boxes are handled under size and item-type rules rather than the kilogram figure in the table. Several categories need advance notice because hold space is finite, and lithium batteries carry separate safety requirements that bar them from checked baggage. Check all three before travel day — at the desk the only remaining options are abandon it or ship it separately.

An infant fare is not a free seat. We record Thai Airways’s infant fare at about 10% of the adult fare. That rate is for a lap infant with no seat of its own. Want a separate seat or a car seat and it becomes a child fare, priced as a share of the full fare, and the infant’s own baggage entitlement is usually far smaller than an adult’s. Strollers normally travel outside the weight allowance, but the policy differs by carrier — confirm before you fly.

Airlines on this route

3 carriers operate BKK–HND — all full-service. Alliances present on the route: Oneworld, Star Alliance. Multiple carriers only affect price when both sides are actually selling in the same window. We hold 10 monthly lows spanning a 31% range.

Three carriers serve BKK-HND: Thai Airways, Japan Airlines and ANA — all full-service, with checked baggage included. With Haneda’s slots tightly held, this route is flown by the major full-service carriers rather than low-cost operators, which gives it a more uniform, business-oriented character. The choice comes down to schedule, the cabin and the frequent-flyer programme you prefer; comparing the three on your dates is straightforward.

Carrier count is not year-round competition. Some operators fly this corridor seasonally or on selected weekdays. In a week where only one is genuinely selling, the fare behaves like a monopoly fare. The fastest check is how many carriers actually quote your dates, not how many have ever served the route.

Compare totals, not headline numbers. The low-cost carriers price the seat low and sell bag, seat and meal separately; Thai Airways, Japan Airlines and All Nippon Airways (ANA) fold them into the fare. Comparing the first number you see compares two different products. Add one bag and one seat assignment on both sides, then read the final figure. On medium-haul and longer, the remaining gap is frequently smaller than the search page suggests.

Monthly market-low pattern (THB)

Across the 10 months in our cache the lowest recorded fares run from ฿5,521 (Aug 2026) to ฿7,248 (Mar 2027), a 31% spread. Each value is a single snapshot, not that month’s average. This corridor scores 8/10 on our own catalogue demand ranking.

A missing month is not a missing flight. The table shows only months where a capture succeeded. A month that is absent has no recorded value from the latest pass — usually because the schedule is not yet on sale, or because that capture returned nothing. It is not a signal that the route has closed. Check live pricing for the month you care about.

That 31% spread is what flexibility is worth. If you can move the month, this is the real range you are playing with on this corridor. If you cannot, the remaining levers are day of week and how far ahead you book, and both move the number materially less than changing month. Knowing which lever has the most travel matters more than hunting discounts.

Fare trends

Between 2026-W20 and 2026-W31 we captured the BKK–HND low 8 times, ranging ฿5,356 to ฿6,741 — a 26% spread. The cheapest reading fell in week 2026-W25, and from first capture to last the low moved up 17%.

BKK-HND fares move with Japan’s travel seasons — cherry blossom, autumn foliage and the winter holidays are the busiest and dearest, and eight to twelve weeks of lead time is sensible for those peaks. Outside them, six to ten weeks usually finds a workable economy fare in THB. Because the route is all full-service, fares are steadier than on a low-cost-heavy corridor, but flexible dates still help.

Who holds the price matters. In our most recent capture the low sat with the agency Trip.com rather than the airline’s own site. Changes and refunds on an agency ticket have to go back through that agency first, and when a flight is cancelled the re-route is generally slower than holding the ticket directly with the carrier. A few hundred baht of saving is not automatically worth it if your itinerary has little slack.

Seasonality & best time to book

Our catalogue lists 3 carriers on this city pair. BKK–HND peaks when the Thai community abroad travels at the same time — Songkran, New Year and the long school break. The side effect most people miss is that the return leg often prices higher than the outbound in the same week, because demand stacks in both directions at once.

Bangkok–Tokyo fares move with demand. The cheapest windows fall outside school holidays, Songkran and New Year; book 4–8 weeks ahead for normal dates.

Frequency is seasonal too, not just price. The 21 weekly departures in our catalogue is an estimate of the standard schedule; carriers add and cut rotations by season. That means the cheapest month can also be the month with the fewest options — and with fewer rotations, one cancellation hurts more. Read price and frequency together.

What our data actually shows. Of the 10 months we captured, the cheapest reading was Aug 2026 at ฿5,521 and the dearest Mar 2027 at ฿7,248. These are observations, not a forecast for next year: a month that read cheap in one pass may not in the next. Use it as a starting point for comparison, not a fixed calendar.

About Tokyo

Our catalogue lists 3 carriers on this city pair. Tokyo (HND) sits in Japan, uses JPY, and the visa position we record for a Thai passport is: visa-free 15 days. The flight from Bangkok runs about 6.0 hours. Tokyo Haneda — quick airport access to central Tokyo

Tokyo needs little introduction — a vast, meticulous city that rewards repeat visits across every season. Haneda Airport, which this route serves, sits close to the centre on Tokyo Bay, linked by quick train and monorail; for many travellers that proximity is the deciding factor over the more distant Narita. Haneda also offers good onward domestic connections across Japan. For Thai visitors, Tokyo is a destination returned to for its food, its seasons and its endless detail.

Japan — the rule we record. Visa-free for tourism of 15 days or less · Free (exempt) · 15 days per entry Extended to 30 days for small tour groups from 2024 — check the current terms. Verify the current text at the official source. This set was reviewed on the date stamped in our visa-rules file and requirements change without notice — confirm with the embassy or the immigration portal before buying a non-changeable ticket.

The cheapest fare here is not the nonstop

The lowest fare we have recorded, ฿6,741, is a 1-stop itinerary with a total journey time of 25h 10m, against an average nonstop block time of 6.0 hours on the same corridor — about 19.2 hours more. The cheapest number on this page is therefore priced for a different product than the nonstop.

One ticket and two tickets differ exactly where things break. With every sector on one ticket, the airline must re-accommodate you when a late first leg makes you miss the connection. Self-connect on separate tickets to get the total down and a missed connection means buying a new ticket at the walk-up price, with nobody on the hook. The saving is almost always smaller than that second ticket. None of this risk appears in any number on the screen.

Bags and immigration at the stop. A bag runs through to the final destination only on a single ticket or under an interline agreement. Otherwise you reclaim it, clear the transit country’s immigration, and check in again — and some countries require a transit visa even when you never intended to visit. Check the transit rules of every country the ticket puts you on the ground in, not just the destination.

Passenger rights on BKK–HND

Our catalogue lists 3 carriers on this city pair. Departures from Thailand fall under Thailand CAAT; the return from Tokyo falls under Japan Civil Aviation Bureau (JCAB). The two regimes are not the same, and what you are owed changes with the direction of travel and the nationality of the operating carrier — never with the fare you paid.

No European-style compensation schedule applies here. The destination sits with Japan Civil Aviation Bureau (JCAB), which typically imposes duty of care, re-routing and refund obligations but no fixed EU261-style cash bands. The enforceable floor is therefore the airline’s own conditions of carriage plus Thailand CAAT rules for departures from Thailand. Read the conditions of carriage before you buy — that is the document that actually binds you.

Baggage and delay are governed by different instruments. If a bag is lost or arrives late on an international journey, the basis of claim is the Montreal Convention 1999, which applies where both the origin and destination states are parties. Its ceilings are denominated in SDR and revised periodically, so only the current figure is citable. The practical consequence is that the two claims are independent: having no delay-compensation right does not remove a baggage claim, and the report should be filed at the baggage desk before you leave the airport.

FAQ

Which airlines fly Bangkok to Tokyo?

The BKK-HND route is operated by Thai Airways, Japan Airlines and All Nippon Airways (ANA). Compare baggage, alliances and fares in the table above.

How long and how often is the BKK-HND flight?

Block time is ~6.0h, with ~21 flights per week across all carriers.

When is BKK-HND cheapest to book?

The lowest fare our feed returned for this route is ~฿5,417. Book 4–8 weeks ahead; avoid Songkran, school holidays and peak season to save 15–30%.

What exactly is the lowest fare shown on this page?

It is the cheapest fare our cache has recorded on BKK–HND, captured one snapshot at a time. It is not an average, not a live quote and not a guarantee that a seat still exists at that price. Use it as a reference floor, then check live pricing.

What is the difference between a direct and a nonstop flight?

Direct means the flight number does not change, but the aircraft may still land en route. Nonstop means no intermediate landing at all. If the clock matters, filter on nonstop, not direct.

If my BKK–HND flight is cancelled, who is responsible?

The destination sits with Japan Civil Aviation Bureau (JCAB), which generally imposes duty of care, re-routing and refunds but no fixed EU261-style cash bands. The enforceable floor is the airline’s conditions of carriage plus Thailand CAAT rules for departures from Thailand.

Will my bag be through-checked if I book two separate tickets?

No. Through-checking happens only when every sector is on one ticket or an interline agreement exists. On separate tickets you reclaim the bag, clear the transit country’s immigration and check in again — and a missed connection is a new ticket at your cost.

Why does the cheapest ticket take longer than the 6.0-hour block time?

Because the lowest fare we recorded is a 1-stop itinerary with a total journey time of 25h 10m, not a nonstop. Filter to nonstop and compare the price again.

Search live fares

Search BKK → HND on Aviasales →

Related

• BKK airport
• HND airport