Korean Air and Delta Air Lines have expanded the Seamless Baggage Transfer service to flights from Seoul Incheon to Los Angeles and Seattle. For passengers flying from Asia through the US with a further connection, this means fewer manual baggage operations and a potentially shorter path between international arrival and the next flight. At the same time, the new procedure does not cancel passport control, customs regulations, or the possibility of additional checks.
The main change concerns not the flight itself, but the most stressful part of traveling through American airports: the moment when a passenger, after an international flight, must go through border formalities, collect registered baggage, re-check it for a domestic or subsequent connecting flight, and go through aviation security again. This is the link that Korean Air and Delta are gradually reducing thanks to International Remote Baggage Screening, or IRBS.
According to Delta, as of June 23, 2026, Seamless Baggage Transfer operates on the ICN-SEA and ICN-LAX routes for Delta and Korean Air flights. Specialized publications clarify that Korean Air flights to Los Angeles and Korean Air/Delta flights to Seattle have been added to the program, and overall, the service now covers five major American gateways from Incheon: Atlanta, Minneapolis-St. Paul, Detroit, Seattle, and Los Angeles.
What Exactly Changed for Passengers
IRBS allows the images of registered baggage to be checked before the plane arrives in the US. Baggage undergoes X-ray control at the departure airport, and the corresponding data is transmitted for remote review by American services. If there is no need for additional inspection, the suitcase can be automatically transferred to the next flight, and the passenger does not need to collect it at the first American airport just to re-check it.
For tourists, this sounds like a small operational detail, but in practice, it can significantly affect the quality of the connection. During transit through the US, even 20 minutes often decide whether a passenger will make a short connection or will have to rebook the route. Delta previously estimated time savings of approximately up to 25 minutes, and materials from Korean Air and industry media for the current expansion speak of savings of up to 20 minutes on the transfer.
The change will be especially noticeable for travelers flying from other Asian cities via Seoul Incheon Airport (ICN), and then continuing their journey through the US. For example, a route like Bangkok - Seoul - Seattle - Portland or Manila - Seoul - Los Angeles - Las Vegas can become simpler specifically at the American transfer section, if the specific flight and ticket fall under the service conditions.
On Which Routes Seamless Baggage Transfer Operates
The recent expansion concerns directions from Incheon to Los Angeles (LAX) and Seattle-Tacoma (SEA). According to published data, Korean Air flights KE011 and KE017 are mentioned for Los Angeles, and KE041 and DL196 for Seattle. A separate additional flight KE8015 to Los Angeles is listed as temporary for specific dates at the end of June.
This is not the first stage of the program. Korean Air and Delta launched IRBS on the Seoul - Atlanta route in August 2025, and in the spring of 2026, the service expanded to directions to Detroit and Minneapolis. Now the geography covers key hubs of the joint trans-Pacific network of the two airlines: Atlanta (ATL), Detroit (DTW), Minneapolis-St. Paul (MSP), Seattle, and Los Angeles.
This is important not only for passengers starting their journey in South Korea. In the joint network of Korean Air and Delta, Incheon operates as a large hub for travel from Japan, Southeast Asia, China, Vietnam, the Philippines, and other markets. That is, the new procedure can be useful for tourists who do not plan to stop in Seoul at all, but use ICN as a transfer airport.
What IRBS Does Not Cancel
The most important clarification: IRBS is not American preclearance and does not mean that a passenger arrives in the US as a domestic traveler without document control. Passengers still go through border and customs control at the first American airport of arrival, and before the next flight, they may undergo security procedures according to airport and route rules.
The program also does not guarantee that every suitcase will automatically move forward without intervention. Korean Air, in its IRBS rules, notes that in case of a request from American authorities, a passenger may be notified of the need for a separate check. Additionally, if the route is booked with separate tickets, automatic baggage connection may be limited, so the passenger should confirm this at the check-in counter at the first airport.
There is also a practical customs aspect. For the US, food products, plant materials, meat products, fresh vegetables, seeds, and certain medical or biological goods are traditionally sensitive. If the baggage contains items that may require additional control, the new technology should not be perceived as a way to bypass declaration rules.
Why This Is Important for the Tourism Market
For airlines, this news is part of a broader struggle for connection quality. On trans-Pacific routes, passengers often choose not only by ticket price, but also by the predictability of the transfer: how far they need to walk between terminals, how easy it is to find the next gate, what happens to the baggage, and how clear the procedures are after a long overnight flight.
If the connection via Incheon and an American hub becomes less stressful, it strengthens the competitiveness of the route for tourists from Asia to the US, Canada, Mexico, the Caribbean, and domestic American destinations. For Korean Air and Delta, this is also a way to show the advantage of the joint venture: not just selling flights under a single network, but actually removing pain points on the passenger's path.
For the cities of Los Angeles and Seattle, the change may have a tourism effect in two directions. Some passengers will use these airports as a final destination, so less pressure on baggage procedures can make arrival more comfortable. Others will fly further - for example, to Las Vegas, San Diego, San Francisco, Portland, Denver, or domestic resort destinations. For them, automated baggage transfer during connection may be most noticeable.
What to Check Before Booking
Despite the positive effect, passengers should not build their route solely on the general phrase about Seamless Baggage Transfer. It is necessary to check the specific flight, carrier, ticket number, baggage conditions, and minimum connection time. If you plan a short connection in the US, you should allow extra time for passport control, security, terminal change, first flight delay, and possible additional checks.
- Check if your flight from ICN to the US is included in the IRBS list of directions specifically on the date of travel.
- Clarify at check-in whether the baggage is checked through to the final destination, especially if tickets were purchased separately.
- Keep baggage tags and monitor the status of the suitcase in the airline's app, if such a function is available.
- Do not put food or items that may cause customs questions in the US in the baggage without prior checking of the rules.
- Before leaving for the airport, check the flight status via the online board: for Incheon, the ICN board is available, for Los Angeles - the LAX board, for Seattle - the SEA board.
If your transfer is long or the route involves an overnight stay, it is worth thinking about ground logistics in advance. For travel via Seoul, you can check hotels near Incheon Airport and transfers from ICN. For arrival in the US, pages about hotels near LAX, transfers from LAX, hotels near SEA, and transfers from SEA may be practical.
How This Will Affect Future Transfers
The expansion of IRBS to Los Angeles and Seattle shows that the aviation industry is increasingly actively optimizing not only ticket sales or onboard service, but also the hidden stages of the journey. For the passenger, these stages often determine the impression of the route: whether they need to run with a suitcase through the arrival hall, whether it is clear where the next control is, and whether there is a chance to make the flight after a small delay.
If the program shows stable results on five American directions from Incheon, it can logically be considered for other routes and partner networks. However, for tourists, the main thing right now is to perceive the news correctly. This is not a universal guarantee of a fast transfer and not a permission to ignore customs rules. This is a useful technological simplification that can remove one of the most inconvenient steps in traveling through the US.
Conclusion is simple: Korean Air and Delta passengers flying from Asia via Seoul to Los Angeles, Seattle, Atlanta, Detroit, or Minneapolis with a further connection should check the availability of Seamless Baggage Transfer for their flight. If the service applies to the route, the journey can become noticeably calmer, but time buffer, attention to documents, and control of baggage rules remain mandatory.
Information Sources
- Delta News Hub: updates regarding Seamless Baggage Transfer and the launch of ICN-SEA and ICN-LAX from June 23, 2026.
- Korean Air: transfer rules, IRBS description, and warnings regarding additional checks and separate tickets.
- Travel Agent Central, Business Travel News, and Aviation Week: confirmation of routes, launch dates, and the context of the program expansion.