Quick summary
Europe-Japan flights now run 2-4 hours longer than before 2022 because Russia has closed its airspace to carriers from more than 35 countries since February 2022. Finnair’s Helsinki-Tokyo nonstop takes 13 hours 20 minutes as of June 2026, up from about 9 hours; London-Tokyo itineraries on European carriers run 14-16 hours.
The detours are structural, not seasonal, and the southern alternatives keep narrowing. Here is how the current corridors work and how to compare total journey time rather than the nonstop leg alone.
In October 2026, Azerbaijan temporarily closed the southern sector of its airspace, funneling international flights into a roughly 100-kilometre-wide strip across the north of the country. It is the latest squeeze on the corridors between Europe and Japan, where routes were already stretched.
The result is a permanent detour.
For travelers departing Europe, a nonstop is no longer automatically the fastest door-to-door option. The flight may be direct, but its route is not the old one.
The new flight-time arithmetic
Russia’s airspace has been closed to carriers from more than 35 countries since February 2022. The mutual bans between the EU and Russia remain in force through 2026. Northern city pairs feel it most. London-Tokyo and Frankfurt-Seoul now run about 2-4 hours longer than the old Siberian corridor allowed, and some Europe-Asia routes add up to five hours, according to Simple Flying.
Finnair’s answer is the polar route. Its Helsinki-Tokyo flights now fly roughly 13 hours over the Arctic rather than taking the old non-polar track. Finnair’s published timetable lists the nonstop at 13 hours 20 minutes. Finnair’s own update on its Asia routes sets out the detours behind the change.
The southern alternatives are narrowing too. The tightest crossing is the Ganja Pass, the Georgia-Azerbaijan border corridor near Ganja, one of the few paths that avoids both Russian and Iranian airspace. When many flights share one narrow corridor, controllers space aircraft out. That can add delay on top of distance.
Superdeals cover departures from North America, Europe and Australia.
Flight deals most people never see
Air Traveler Club monitors thousands of routes for pricing anomalies that traditional search engines miss. With ATC Superdeals members save up to 80% on each flight vs. regular fares.
Too good to be true? Check it out yourself. It's free.
Delivered weekly. Unsubscribe anytime.
Why Middle Eastern carriers now win on time
Not every carrier takes the long way. Airlines that still hold Russian overflight rights — Turkish, Gulf, Chinese, Indian and Central Asian carriers among them — keep shorter routings to Asia through hubs such as Istanbul, Doha and Dubai, and through Chinese gateways. For a Europe-Japan trip, the shorter flying time can offset the stop. A one-stop itinerary can total close to a European nonstop even though the journey is split.
No Qatar airspace closure is in force; the detours come from Russia’s ban, not from Qatar. Doha and Dubai sit on the southern side of the closed airspace, so Gulf carriers can route around the ban without the long northern arc European airlines must fly.
Warsaw is another option. LOT Polish Airlines builds Europe-Japan itineraries through Warsaw with minimum connections of 30-40 minutes, according to the Asian Sun Times. Chinese carriers flying via Shanghai or Beijing take a longer total journey. The visa-free stopover rules behind those routings are set out in our guide to Chinese carriers and stopovers on Europe-Japan routes.
The structural advantage that won’t disappear
Russia’s ban is reciprocal and tied to sanctions, with no off-ramp in sight. Japan is among the countries still subject to the closure. The detour is a planning assumption, not a disruption to wait out. Schedules and connection windows are now built around it.
The northern routes lost the most. Carriers that still overfly Russia retain an advantage on those city pairs.
A northern European departure that once beat a Gulf connection on time may no longer do so once the connection is counted.
Where the time penalty bites hardest — and where it doesn’t
The penalty is not uniform. Finnair’s Helsinki-Tokyo nonstop is the clearest benchmark: its current duration is a 48% increase over about 9 hours before 2022. The route you pick changes the size of the time penalty.
London-Tokyo itineraries on European carriers run 14-16 hours, and JAL’s Tokyo-London service is listed at roughly 16 hours. Lufthansa’s Frankfurt-Seoul route runs about 13 hours. Before the closure, it took roughly 10.5 hours.
Air France’s Paris-Seoul service rose from about 9 hours 55 minutes to 11 hours 52 minutes, a smaller increase than the northern city pairs. Season matters less than route: the detour, not the jet stream, drives the difference.
Compare total trip time, not just the nonstop leg
Total journey time decides the comparison, not the airborne leg alone. A 13-hour nonstop and a one-stop that flies a shorter path but adds a connection can land within an hour of each other once check-in, immigration and the layover are counted.
The connection itself can change the result. A Warsaw routing can undercut a longer layover elsewhere, even when both itineraries include a stop.
If you plan to see more than Tokyo, an open-jaw ticket into Tokyo and out of Osaka avoids backtracking across Japan.
What the longer flight times change
With the northern detour built into 2026 schedules, the comparison turns on where you start and how much time the connection adds.
Starting in northern Europe. The nonstop’s old time advantage is thinnest here. Compare a one-stop on a carrier that still overflies Russia before defaulting to the nonstop, sorting by total duration rather than first-leg time. Less suited: travelers who need one ticket with protected connections and no rebooking risk.
Connecting anyway. If your itinerary already includes a stop, the detour matters less than the layover length. Look at the connection itself: LOT’s short Warsaw minimum keeps total time down. Less suited: travelers who cannot absorb a long total journey.
Flying on a fixed arrival time. When you must land by a set hour, the published arrival time decides, not the carrier or aircraft type. Check the exact flight number and date, because Finnair’s Tokyo duration shifts by 10-15 minutes between summer and winter timetables. Less suited: travelers who book by headline duration alone.
Before committing to the longer journey, confirm the schedule.
Reporting by
Questions? Answers.
Why are Europe-Japan flights still so long in 2026?
European carriers still avoid Russian airspace, so many routes cannot use the shortest Siberian corridor and must detour north over the Arctic or south through Central Asia. That adds hours rather than minutes on Japan-bound flights. Russia’s airspace has been closed to carriers from more than 35 countries since February 2022.
Which Europe-Japan route is a good benchmark?
Helsinki-Tokyo is the clearest example: Finnair lists the nonstop at 13 hours 20 minutes as of June 2026, against about 9 hours before 2022. That makes it a useful reference point for current Europe-Japan scheduling.
Are all Europe-Japan flights affected equally?
No. The northern city pairs lost the most, with London-Tokyo and Frankfurt-Seoul now running 2-4 hours longer, while Air France’s Paris-Seoul service added less. The exact penalty depends on origin, carrier and whether the airline still holds Russian overflight rights.
Do Middle Eastern carriers really save time on Europe-Japan trips?
Often, yes, because they still overfly Russia and fly a shorter path to Asia through hubs such as Istanbul, Doha and Dubai. A one-stop can total close to a European nonstop once the connection is counted. The saving depends on the layover length, not on the hub’s design.
Is the Russian airspace closure permanent?
There is no indication it will end soon. The bans are reciprocal and tied to sanctions that remain in force through 2026, and Japan is among the countries still subject to the closure. Plan for the longer flight times through 2026.
