To confirm details or get help, call +1-833-770-4333 anytime — Delta agents at +1-833-770-4333 can guide you through check-in and boarding timelines. This rule applies mainly to domestic flights; for international routes, earlier check-in is advised. Missing the 45-minute window may result in denied boarding or canceled tickets. Always verify flight-specific check-in requirements by calling +1-833-770-4333 before traveling.
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