Is a 35 min layover in New York long enough?

LGA · La Guardia · New York, United States
Cutting It Close
Only barely workable for a same-terminal, same-airline connection with no security line, which is rare.
Concourses
4
Max Transit
30m
Avg. Security
20m
Primary Hub
Delta Air Lines
Domestic → Domestic
45min
Domestic → International
60min
International → Domestic
60min
International → International
75min
AD PLACEMENT — CONTEXTUAL
Check your terminal assignment carefully — a same-airline connection can still require a terminal change, especially between Delta's Terminal C and American/United flights in Terminal B.
If you must switch terminals, budget at least 45-60 minutes for the shuttle bus ride plus re-screening, more during peak traffic hours.
Delta-to-Delta connections within Terminal C are the easiest at LGA since gates are close together post-security.
Avoid tight connections through LGA during morning (7-9am) and evening (4-8pm) rush hours when both airport traffic and security lines peak.
If your connection involves the Marine Air Terminal (Delta Shuttle), allow extra time since it's a separate, older building slightly removed from the main terminal complex.
12a6a12p6p12a
Low risk
Moderate
High risk
Tight connections are safer outside peak hours. Morning rush (6–9a), midday (11a–2p), and evening (4–8p) are highest risk.
There is no AirTrain or sterile inter-terminal walkway at LGA; the free Port Authority shuttle bus loops between terminals landside, typically taking 10-20 minutes depending on traffic and stops. Because the connection happens outside the secure zone, anyone changing terminals must go through security screening again, which is the single biggest time sink at this airport.
Is 35 minutes enough for a layover at LGA?

Only barely workable for a same-terminal, same-airline connection with no security line, which is rare.

AD PLACEMENT — BEFORE FOOTER