The dissolution of the Soviet Union eventually opened the airspace over Russia, allowing new circumpolar routes to come into use for commercial airlines which enabled a lot of new non-stop services.
In the late 2000s/early 2010s, skyrocketing fuel prices coupled with economic crisis resulted in cancellation of many ultra-long haul non-stop flights. As fuel prices fell and aircraft became more economical the economic viability of ultra long haul flights improved.
- Domestic flight
- Flight length
- International flight
- World's busiest passenger air routes