We are able to help you preassign your seats on a Delta codeshare
flight booked with Midwest Airlines. However, please note, there is no
preassigned seating on Delta Shuttle between Boston and LaGuardia and
Washington DC and LaGuardia.
You will check in with the carrier on which your flight originates.
Customers originating on Midwest Airlines operated flights connecting to Delta Codeshare flights must check in with Midwest Airlines.
Customers will be issued a boarding pass for the connecting Delta
Codeshare flight and bags will be tagged to the final destination.
Midwest Airlines codeshare customers originating on Delta operated flights connecting to Midwest Airlines flights must check in with Delta. Customers
will be issued a boarding pass for the connecting Midwest Airlines
flight and bags will be tagged to the final destination.