Originally Posted by
JerseyJoe
YMMV -- I recently did IND-IAD-LHR (morning flight that arrives late evening)
LHR-ORD-IND (next morning) and only one SWU was pulled from my account even though the overnight was greater than 4 hours. Probably just got lucky.^
With a SWU you are given 12 hours for it to count as a connection, CR1's are 4 hours.