The world’s 20 busiest international airline routes compiled by Luton, England-based OAG, a provider of air travel information and applications, using statistics for the 12 months ending in February.
The busiest international routes originating in the U.S. are New York La Guardia and Chicago O’Hare to Toronto and New York Kennedy to London Heathrow. The busiest European routes are Dublin-Heathrow, Heathrow-Kennedy and Heathrow-Amsterdam.
The world’s busiest international route, Kuala Lumpur-Singapore, had 30,537 flights over the 12-month survey period. Seven airlines compete, led by Air Asia with 25% of capacity.
Second busiest Hong Kong-Taipei had 28,887 flights. Five airlines compete, led by Cathay Pacific with 45% of capacity.
Number three flight is Jakarta-Singapore with 27,304 flights. Seven airlines compete. Singapore Airlines led with 31% of capacity.
Number four is Hong Kong-Shanghai with 21,888 flights. Seven airlines compete. Cathay Dragon had 42% of capacity.
Number five is Jakarta-Kuala Lumpur with 19,849 flights. Nine airlines compete. Malaysia Airlines led with 23% of capacity.
Number six is Seoul Incheon-Osaka with 17,488 flights. Eight airlines compete. Asiana led with just 16% of capacity.
Number seven is Hong Kong-Seoul Incheon with 17,075 flights. Eleven airlines compete. Cathay Pacific led with 26% of capacity.
Number eight is LaGuardia-Toronto with 16,956 flights. Three airlines compete, led by Air Canada had 53% of capacity.
Number nine is Dubai-Kuwait with 15,332 flights. led Emirates had 49% of capacity.
Number ten is Hong Kong-Singapore with 15,029 flights. Four carriers compete; Cathay Pacific had 47% of capacity.
Number 11 is Bangkok-Singapore with 14,859 flights. Five airlines compete, led by Singapore Airlines with 33%.
Number 12 is Bangkok-Hong Kong with 14,832 flights. Seven airlines compete, led by Cathay Pacific with 38% of capacity.
Number 13 is Hong Kong-Beijing with 14,543 flights. Five airlines fly the route, led by Cathay Dragon with 36% of capacity. The 1,989-kilometer route takes three hours and 20 minutes to fly. The A330 had 63% of capacity and the A320 had 29%.
Number 14 is Dublin-London Heathrow with 14,390 flights. flown by just two airlines: Air Lingus had 60% of capacity
Number 15 is Osaka-Taipei with 14,186 flights. Ten airlines fly the route: China Airlines leads with 31% of capacity.
Number 16 is New York Kennedy-London Heathrow with 13,888 flights. The route has four airlines operate, British Airways had 42% of capacity
Number 17 is Osaka-Shanghai with 13,576 flights. The route has nine airlines. China Eastern led with 21% of capacity.
Number 18 is Seoul-Tokyo Narita with 13,517 flights. Nine airlines fly the route: Asiana led with 23% of capacity.
Number 19 is Amsterdam-London Heathrow with 13,179 flights. European hubs has two carriers, KLM and British Airways, who split the traffic, The A320 had 39%, the 737 had 38% and Embraer aircraft had 17%.
Number 20 is Chicago-Toronto with 13,100 flights. Three hub carriers split the traffic. Air Canada led with 35%; United has nearly as much, and American had the rest.
Reference: Ted Reed for Forbes