Security at ICN can have lines up to 20 minutes. Plan extra time to avoid stress, especially during busy periods.

| Most accurate provider | OneTravel 3 stars | 
|---|---|
| Most trusted provider | OneTravel 3 stars | 
| Round-trip from | $372 (Mytrip) | 
| One-way from | $129 (Kiwi.com) | 
| Popular in | August | 
| Cheapest in | June | 
| Average price | $550 | 
| Good one-way deal | $545 or less | 
Fly from
Fly to
Route
Depart
Return
Price
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Sat 3/28
6:15 am-12:15 am
3 stops21h 15m
Kathmandu Tribhuvan
Sat 4/18
5:30 pm-4:25 pm
2 stops19h 40m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Sat 1/17
12:10 am-9:15 pm
1 stop24h 20m
Kathmandu Tribhuvan
Fri 1/23
10:15 pm-8:55 pm
1 stop19h 25m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Tue 1/13
1:00 pm-5:45 pm
Nonstop8h 00m
Kathmandu Tribhuvan
Tue 3/3
7:20 pm-4:30 am
Nonstop5h 55m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Sat 3/28
1:00 pm-5:45 pm
Nonstop8h 00m
Kathmandu Tribhuvan
Sat 4/18
7:20 pm-5:05 am
Nonstop6h 30m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Sun 3/22
12:10 am-12:00 pm
1 stop15h 05m
Kathmandu Tribhuvan
Tue 3/24
10:15 pm-8:55 pm
1 stop19h 25m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Sun 3/22
12:10 am-12:00 pm
1 stop15h 05m
Kathmandu Tribhuvan
Wed 3/25
1:00 pm-8:55 pm
1 stop28h 40m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Sat 1/3
1:00 pm-5:45 pm
Nonstop8h 00m
Kathmandu Tribhuvan
Tue 3/3
7:20 pm-4:30 am
Nonstop5h 55m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Wed 1/7
12:10 am-9:15 pm
1 stop24h 20m
Kathmandu Tribhuvan
Thu 2/5
10:30 pm-8:55 pm
1 stop19h 10m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Thu 1/8
12:10 am-12:00 pm
1 stop15h 05m
Kathmandu Tribhuvan
Fri 1/30
10:15 pm-8:55 pm
1 stop19h 25m
IncheonKathmandu
ICN - KTM
ICNKTM
Incheon Intl
Fri 1/9
12:10 am-12:00 pm
1 stop15h 05m
Kathmandu Tribhuvan
Fri 1/23
10:15 pm-8:55 pm
1 stop19h 25m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | 
The price you pay for your flight from Incheon Intl Airport to Kathmandu may vary depending on when you book. For the best chance of a lower fare, look to book 38 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, March is the cheapest month in which you can book a flight from Incheon Intl Airport to Kathmandu (average of $283). Flying from Incheon Intl Airport to Kathmandu in October is currently the most expensive (average of $414). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Incheon Intl Airport to Kathmandu in the evening. Doing so could potentially save you 56% on the flight price compared to flying in the morning, which is usually more expensive.
Travelers seeking maximum savings on their Incheon Intl Airport to Kathmandu flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 49% of weekly flights between Incheon and Kathmandu have experienced delays in the past year, with the average delay time being 121 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Sunday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Korean Air have had the lowest number of delays on this route, with just 49% of flights being delayed.
Guangzhou (CAN) – chosen by Cheapflights users on 53% of 1-stop itineraries from Incheon Intl Airport to Kathmandu on Cheapflights.
Flights via Hong Kong (HKG) have the shortest average one-way travel time for 1-stop routes: 11h 25m.
Flights via Hong Kong (HKG) have the shortest average one-way travel time for 1-stop routes: 11h 25m.
Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average layover time of 2h 08m.
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
Comfort
Boarding
Food
Overall
Entertainment
Crew
Reviews
Jacqueline,Aug 2025
ICN - SEA
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$315 | Average$487 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$359 | Average$439 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$365 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$462 | Average$636 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$621 | Average$708 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$658 | Average$986 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$921 | Average$1,059 | FlexibilityNo cancel fee | On-time72% |