Top 10 Busiest International Routes for March 2025

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

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

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

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

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

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

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

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

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

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

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

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