The route between Beijing Capital International Airport(PEK) and Hongqiao International Airport(SHA) is offering more than 600,000 seats for March, making it the busiest domestic route for China this month. According to OAG, a global air traffic data provider, the 500- mile route between Hong Kong and Taipei was the busiest global airline route for February 2025 while the same source revealed that the route between Johannesburg International Airport (JNB) and Cape Town International Airport (CPT) was the busiest flight route in Africa for 2024. But which are the busiest airline routes for March 2025, according to OAG? Let’s find out.
10. Fukuoka – Incheon
Route | Fukuoka Airport(FUK) -Incheon International Airport(ICN) |
Seats | 335,466 |
Distance | 566 km |

Photo:Simply Aviation | Wikimedia Commons
Let’s have a look at some of the airlines offering direct flights on the route between Fukuoka and Incheon, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
China Southern Airlines | 2h 50m | Boeing 787-9 |
Spring Airlines | 2h 50m | Airbus A320 |
Air China | 2h 50m | Airbus A321 |
Shanghai Airlines | 2h 50m | Airbus A321 |
China Eastern Airlines | 2h 50m | Airbus A350-900 |
Juneyao Airlines | 2h 50m | Boeing 787-9 |
Hainan Airlines | 2h 50m | Airbus A330-300 |

Photo: Maksym Kozlenko | Wikimedia Commons
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time Taken | Aircraft used |
JAL & ANA | Miyazaki Airport(KMI) | 7h 00m | Jal(Embraer 170)
ANA(A321neo) |
JAL & Hawaiian Airlines | Gimhae International Airport (PUS) | 6h 20m | JAL(Boeing 737-900 passenger)
Hawaiian Airlines(Boeing 737 passenger) |
9. Narita – Taoyuan
Route Name | Narita International Airport(NRT) -Taoyuan International Airport(TPE) |
Seats | 337,971 |
Distance | 2193 km |

Photo:Ermell | Wikimedia Commons
Let’s have a look at some of the airlines offering direct flights on the route between Narita and Taoyuan, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
EVA Air | 3h 40m | Boeing 787-10 |
Starlux Airlines | 3h 40m | A321neo |
China Airlines | 3h 55m | A321neo |
Jetstar Japan | 4h 5m | Airbus A320 |
Thai Lion Air | 4h 5m | Boeing 737-800 Passenger |
Peach Aviation | 4h 5m | Airbus A320 |
JAL | 4h 5m | Boeing 787-8 |

Photo:Heeheemalu | Wikimedia Commons
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time Taken | Aircraft used |
Air Busan | Kimhae(PUS) | 6h 15m | Airbus A321 |
Peach Aviation | Osaka(KIX) | 10h 10m | A321neo |
Asian Airlines | Seoul(ICN) | 7h 50m | Airbus A330-300 |
Korean Air | Seoul(ICN) | 9h 55m | A321neo |
Jin Air | Kimhae(PUS) | 8h 10m | Boeing 737-800 |
Peach Aviation | Okinawa(OKA) | 8h 25m | Airbus A320 |
China Eastern Airlines | Shanghai(PVG) | 9h 15m | Airbus 330-200 |
8. Bangkok – Sinagpore
Route Name | Suvarnabhumi Airport(BKK) – Singapore Changi Airport(SIN) |
Seats | 343,563 |
Distance | 1422 km |

Photo: Roger Price| Wikimedia Commons
Let’s have a look at some of the airlines offering direct flights on the route between Bangkok and Singapore, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft Used |
Thai Airways International | 2h 20m | Airbus A350-900 |
Jetstar Asia | 2h 30m | Airbus A320 |
Singapore Airlines | 2h 30 | Boeing 787 |
Cathay Pacific | 2h 35m | Airbus A330-300 |
Scoot | 2h 35m | A321neo |

Photo: Sam Wilson | Wikimedia Commons
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time | Aircraft used |
Bangkok Airways | Ko Samui (USM) | 7h 15m | Airbus A319 |
Malaysia Airlines | Kuala Lumpur | 4h 35m | Boeing 737-800 Passenger |
Vietnam Airlines | Ho Chi Minh City(SGN) | 7h 05m | Airbus A321 |
7. Jakarta – Singapore
Route Name | Soekarno Hatta International(CGK) – Singapore Changi Airport(SIN) |
Seats | 368,927 |
Distance | 887km |
Let’s have a look at some of the airlines offering direct flights on the route between Jakarta and Singapore, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
Garuda Indonesia | 1h 45m | Boeing 737-800 Passenger |
Bakti Air | 1h 45m | Airbus A320 |
Indonesia AirAsia | 1h 45m | Airbus A320 |
Scoot | 1h 45m | Airbus A320 |
Singapore Airlines | 1h 50m | Boeing 777-300ER |
Citilink | 1h 53m | Airbus A320 |
TransNusa | 1h 55m | Airbus A320 |
Jetstar | 2h 00m | Airbus A320 |
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time | Aircraft used |
AirAsia | Kuala Lumpur (KUL) | 5h 00m | Airbus A320 |
Malaysia Airlines | Kuala Lumpur (KUL) | 4h 30m | Boeing 737-800 Passenger |
Bakti Air Malaysia | Kuala Lumpur (KUL) | 5h 55m | Boeing 737-800 Passenger |
6. Bangkok – Hong Kong
Route Name | Suvarnabhumi Airport(BKK) – Hong Kong International Airport(HKG) |
Seats | 376,273 |
Distance | 1697 km |

Photo: Andy Mitchell |Wikimedia Commons
Let’s have a look at some of the airlines offering direct flights on the route between Bangkok and Hong Kong, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
Thai Airways International | 2h 45m | Airbus A350-900 |
Asian Atlantic Airlines | 2h 45m | Boeing 737-300 Passenger |
Ethiopian Airlines | 2h 50m | Boeing 787-9 |
Cathay Pacific | 2h 55m | A321neo |
Emirates | 2h 55m | Airbus A380-800 Passenger |
Hong Kong Airlines | 2h 55m | Airbus A330-300 |
HK Express | 3h 00m | A321neo |
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time Taken | Aircraft used |
VietJet Air | Ho Chi Minh City(SGN) | 6h 05m | Airbus A321 |
Bangkok Airways | Ko Samui(USM) | 6h 50m | A321neo |
Cambodia Angkor Air | Phnom Penh(PNH) | 7h 25m | Airbus A320 |
China Eastern Airlines | Kunming(KMG) | 9h 30m | Boeing 737-500 Passenger |
5. Incheon – Kansai
Route Name | Incheon International Airport(ICN) – Kansai International Airport(KIX) |
Seats | 428,027 |
Distance | 1697 km |

Photo: John Martinez Pavliga|Wikimedia Commons
Let’s have a look at some of the airlines offering direct flights on the route between Incheon and Kansai, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
Asiana Airlines | 1h 40m | Airbus A350-900 |
Korean Air | 1h 45m | Airbus A350-900 |
Air Seoul | 1h 50m | Airbus A321 |
Jeju Air | 1h 50m | Boeing 737-800 Passenger |
Jin Air | 1h 50m | Boeing 737-800 Passenger |
Eastar Jet | 1h 55m | Boeing 737-800 Passenger |
Peach Aviation | 1h 50m | Airbus A320 |
T´Way Air | 2h 00m | Airbus A330-300 |
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time Taken | Aircraft used |
Korean Air | Kimhae(PUS) | 6h 40m | Boeing 737-800 (winglets) Passenger/BBJ2 |
JAL | Tokyo(NRT) | 8h 40m | A321neo |
4. Incheon – Narita
Route Name | Incheon International Airport(ICN) – Narita International Airport(NRT) |
Seats | 469,837 |
Distance | 1265 km |

Photo: Ermell | Wikimedia Commons
Let’s have a look at some of the airlines offering direct flights on the route between Incheon and Narita, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
Asiana Airlines | 2h 20m | Airbus A330-300 |
Air Seoul | 2h 20m | Airbus A321 |
Air Japan | 2h 20m | Boeing 787-8 |
Jeju Air | 2h 25m | Boeing 737MAX 8 Passenger |
Korean Air | 2h 25m | Boeing 787-10 |
Eastar Jet | 2h 25m | Boeing 737-800 Passenger |
Ethiopian Airlines | 2h 30m | Boeing 787-8 |
Jin Air | 2h 30m | Boeing 737-800 Passenger |
Air Busan | 2h 45m | Airbus A321 |
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time | Aircraft used |
JAL | Nagoya(NGO) | 5h 00m | A321neo |
Korean Air | Kimhae (PUS) | 7h 25m | Boeing 737-800 Passenger |
JAL | Fukuoka(FUK) | 5h 15m | Airbus A320 |
JAL | Osaka (KIX) | 7h 00m | Airbus A320 |
Korean Air and ANA | Dalian | 7h 20m | Boeing 767 Freighter |
3. Kuala Lumpur – Singapore
Route Name | Kuala Lumpur International Airport l(KUL)-Singapore Changi Airport(SIN) |
Seats | 472,926 |
Distance | 298 km |
Let’s have a look at some of the airlines offering direct flights on the route between Kuala Lumpur and Singapore, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
Batik Air Malaysia | 1h 00m | Boeing 737-800 Passenger |
Jetstar Asia | 1h 05m | Airbus A320 |
AirAsia | 1h 10m | A321neo |
Malaysia Airlines | 1h 10m | Boeing 737-800 (winglets) Passenger/BBJ2 |
Scoot | 1h 10m | Airbus A320 |
Singapore Airlines | 1h 15m | Boeing 737MAX 8 Passenger |
Ethiopian Airlines | 1h 20m | Boeing 787-8 |
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time Taken | Aircraft used |
Malaysia Airlines and Singapore Airlines | Kuantan(KUA) | 3h 20m | Boeing 737MAX 8 Passenger(Malaysia Airlines)
Embraer 190 E2(Singapore Airlines) |
Malaysia Airlines and Singapore Airlines | Pekanbaru(PKU) | 5h 40m | Boeing 737-800 (winglets) Passenger/BBJ2(Malaysia Airlines)
Airbus A320(Singapore Airlines) |
2. Cairo – Jeddah
Route Name | Cairo International Airport (CAI) – King Abdulaziz International Airport (JED) |
Seats | 549,807 |
Distance | 298 km |

Image: Konstantin von Wedelstaedt | Wikimedia Commons
Let’s take a look at a few airlines offering direct flights on the route between Cairo and Jeddah, and the aircraft operated by the carriers:
Airline | Approximate Time Taken | Aircraft used |
Nile Air | 2 hours 5 minutes | Airbus A320 |
Air Cairo | 2 hours 10 minutes | Airbus A320 |
Flynas | 2 hours 10 minutes | A320neo |
Here are a few airlines offering one-stop flight connection on this route, the aircraft operated, and where the stopovers lie:
Airline | Stopper At | Approximate Time Taken | Aircraft used |
Tarco Air | Port Sudan (PZU) | 6hours | Boeing 737 Passenger |
Royal Jordanian | Queen Alia International (AMM) | 5 hours 30 minutes | Airbus A320 |
1. Hong Kong – Taipei
Route Name | Hong Kong International Airport (HKG) – Taipei-Taiwan Taoyuan International Airport (TPE) |
Seats | 621,341 |
Distance | 809 km |

Photo: 毛貓大少爺 | Wikimedia Commons
Let’s take a look at a few airlines offering direct flights on the route between Hing Kong and Taipei, and the aircraft operated by the carriers:
Airline | Approximate time taken | Aircraft used |
China Airlines | 1 hour 45 minutes | Airbus A330-300 |
HK Express | 1 hour 45 minutes | Airbus A320neo |
Asia Atlantic Airlines | 1 hour 45 minutes | Boeing 737-300 Passenger |
Currently, a single one-stop flight connection is operated on this route
Airline | Stopover at | Aircraft used |
Cathay Pacific and EVA Air | Baiyun (CAN) | Cathay Pacific Airbus A330-300
EVA Air Boeing 87-9 |