Connection times at JFK for International flight

My wife and son are flying to Paris this summer on Delta.

Their flight leaves from JFK -> ORY at 1730.

I can book them a flight from Spokane (GEG) to JFK on the outbound leg, also on Delta, that will land at JFK at 1605, leaving them about 1.5 hours.

Is this enough time? Obviously more time would be better-- but I can't find any better arrival time, unless they arrived the night before, since we're on the west coast and at a smaller airport.

On the way home the same problem exists-- they land at JFK at 1549, and the best option to get them home is 1815, leaving roughly 2.5 hours to clear customs.

Is this do-able? I haven't flown through JFK in 20 years, so I don't know. I think since all flights (both international and domestic) are Delta, the checked bags should be transferred through?

EDIT: the JFK-ORY leg is already purchased since it's a group travel.

Thanks for any advice.

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How much time do I need between connecting flights at JFK?

If you must connect via JFK, make sure you have sufficient time: For connections from domestic (US or Canada) flights to other destinations in the US or Canada, allow 2\u20133 hours; for transfers from domestic to international destinations, allow 3\u20134 hours; for international to domestic, 3\u20135 hours; and for international to ...

How long does it take to get through international customs at JFK?

Customs does not take a long time at JFK, and if you comply with regulations, you should be done in 10-15 minutes.

Is 2 hours enough between connecting flights at JFK?

You should aim for 3 hours minimum. Immigration is hit-or-miss. I have gone through JFK immigration within 20 minutes, while the next day, my friend spent about one hour coming in at the exact same time on the same flight. I travel with only carryon luggage so I never have to wait for it to get through customs.

How much time do you need between connecting flights internationally?

Consider allowing at least 60 to 90 minutes for a U.S. domestic connection, and at least two hours for an international connection. Airlines usually allow you four hours or more maximum connecting time.

JFK Airport - Terminals Guide

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