Korea - Best way to fly from Wash DC to HK or Seoul?

Trying to make a trip from Washington DC to Seoul and Hong Kong and then back to DC. Does not matter if we go to Seoul or HK first. Airline does not matter either. Basically, I'm trying to figure out who has the best, most efficient routes to make this trip. We're likely doing business class so if that airline has a good business class, that'd be a nice bonus.

Is there anyone who flies direct to either one of these cities from Washington DC?

I see nonstops from EWR, JFK, and ORD to HKG, but none from IAD.

Looks like Korean does nonstops to Seoul from IAD, but no one else.

Thanks PP. Quick question - was there a website where you were able to look up this info?

CX flies non-stop JFK/HK, CO flies non-stop EWR/HK
KAL flies non-stop from DC to Seoul
Both KAL and CX flies btw Seoul and HK

One option:

DC >JFK
JFK >HK [CX flight]
HK > Seoul [CX]
Seoul >DC [KAL]

Trying to make a trip from Washington DC to Seoul and Hong Kong and then back to DC. Does not matter if we go to Seoul or HK first. Airline does not matter either. Basically, I'm trying to figure out who has the best, most efficient routes to make this trip. We're likely doing business class so if that airline has a good business class, that'd be a nice bonus.

Is there anyone who flies direct to either one of these cities from Washington DC?


Non-stop service does not exist between D.C. and Hong Kong. Korean Air is the only air carrier doing non-stop between D.C. and Seoul. If you want the most efficient route, it would be D.C.-Seoul-H.K.-Seoul-D.C. on Korean Air. This should be the most cost and time efficient. However, I cannot not say anything about the quality of Korean Air's Business Class.



CX flies non-stop JFK/HK, CO flies non-stop EWR/HK
KAL flies non-stop from DC to Seoul
Both KAL and CX flies btw Seoul and HK

One option:

DC >JFK
JFK >HK [CX flight]
HK > Seoul [CX]
Seoul >DC [KAL]


This would be very inefficient in terms of cost as you need to pack three airlines in the itinerary.