Route brief · BCN → KIX
Barcelona → Osaka
$725
−18% vs typical
seasonal median $880 · difference $155
Sep 6 – Sep 13 · 7 nights
KLM1 stop
- Usual monthly lows
- $835–$1,040
- Board rank
- Stronger than 49%
- Route sample
- 5 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefKIXOsakaJapan with the volume up — street food, blunt humour, and Kyoto and Nara both under an hour by train.Best windowMar–May · Oct–NovAirportsKansai (KIX) · Itami (ITM)All routes into OsakaWhen this route gets cheap.
Cached-fare history: across 5 months, Sep is the cheapest for BCN → KIX. Best time to be there: Mar–May · Oct–Nov.
Fares bottom out in September around $725 and peak in March near $1,173 — a $448 spread across the 5 months we track. The cheapest itinerary we are tracking makes one stop and takes about 15 hours outbound, on a 7-night trip — ticketed under KLM, which on a connecting fare need not operate every leg. At $725 for 10,318 km each way, that works out to about $35 per 1,000 km flown. That is below the $44 typical of long-haul fares here. Across the 32 departure cities we track at a similar distance from Osaka, this fare ranks 5th — 46% above the $498 from San Francisco. For context, the middle fare among the 36 routes of similar length we watch out of Barcelona is $717.
The 7 days we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 14% higher than when tracking began on Aug 8 — $1,056 then versus $1,199 now, across 5 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $702, on Nov 25.
- Sun, Oct 4$1,182
- Mon, Oct 5$1,206
- Tue, Oct 6$1,205
- Wed, Oct 7$1,199
- Thu, Oct 8$1,145
- Fri, Oct 9$1,138
- Sat, Oct 10$1,562
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cheapest in Sep · around $725
18% below the $880 typical fare
Cheapest round-trip fare found per month · Barcelona → Osaka · cached-price history
Route facts
- Airports
- El Prat (BCN) ↔ Kansai (KIX) · Itami (ITM)
- Flight time
- ~15 hours outbound
- Distance
- ~10,318 km each way
- Typical price
- $880 round-trip (seasonal median)
- Airlines on the board
- KLM
- Itineraries
- Connections on current fares
- Best months to visit
- Mar–May · Oct–Nov
BCN → KIX, answered.
Is $725 a good price for Barcelona to Osaka?
Only slightly. The seasonal median is around $880 round-trip and this fare is 18% under it, about $155. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from Barcelona to Osaka?
Across 5 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Osaka are Mar–May · Oct–Nov — when those overlap, that's your window.
How far in advance should I book BCN → Osaka?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 5 months of cached fares, Sep comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Barcelona to Osaka?
The current cheapest fares involve a connection, ticketed under KLM. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Osaka?
Lock the flight first — then compare stays for Sep 6 – Sep 13 · 7 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next BCN → KIX drop reaches you as soon as we find it.
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