Minimum Connection Time kalkylator
A 90-minute connection at JFK from an international arrival to a domestic departure — across terminals — is a risky sprint: the realistic 2026 band is 90-120 min for immigration, customs and bag recheck (midpoint 105), the AirTrain terminal move adds about 25 min, so you want ~130 min and you are 40 min short. Even the same-terminal version needs ~105 min. On one ticket the airline rebooks you free; on separate tickets you are stranded — a same-day rebooking typically costs $200-$600.
- Your connection — JFK, international → domestic, terminal change
- 90 min
- Realistic band for this flow (immigration + customs + recheck)
- 90-120 min
- Terminal change via AirTrain (T1→T8 class)
- +25 min
- Same-terminal version
- ~105 min
- Recommended minimum for this scenario
- ~130 min
- Your margin
- -40 min
- Stranded on separate tickets — same-day rebooking
- $200-$600
- Verdict
- 90 min = Risky sprint
Indata
America's slowest mega-hub for connections: terminals are not walkable, so T1→T8 means the AirTrain (15-25 min) plus re-clearing security — 60 min domestic, 90-120 international.
International → domestic — The slow lane: immigration queues, customs with all your bags, then a bag recheck before you are airside again — bands run 75-120 min. Global Entry kiosks only help members; most visitors should budget the top of the band.
Same-terminal vs terminal change is the biggest hidden variable: moving terminals adds 20-40 min (modeled 25). JFK T1→T8 = AirTrain 15-25 min then re-clear security; LAX = the cross-terminal T-bus between nine un-walkable terminals; ORD T1↔T5 = the ATS train. Staying put is a 5-15 min walk.
JFK band for this flow: 90-120 min (door-to-door walking reality, not the ticketing MCT)
Checked bags: On domestic arrivals with checked bags, airline bag-transfer cutoffs close about 10 min before the aircraft door — add it as buffer even though on one ticket you never see the bags. International arrivals already have the recheck baked into their band, so this adds nothing there. Peak: Holiday and summer-peak queues add 10-20 min at security, immigration and the jet bridge; the days around Thanksgiving and December 20 - January 2 run at the top of that band.
- Your current connection length
- 90 min
- Recommended minimum — JFK International → domestic ★
- ~130 min
- JFK band for this flow
- 90-120 min
- Terminal-change adder
- +25 min
- Peak / holiday adder
- +0 min
- Checked-bag buffer (domestic arrival)
- +0 min
- Same-terminal version would need
- ~105 min
- Your margin vs recommended
- -40 min
You are 40 min short of the ~130 min this scenario realistically needs. Even a small inbound delay turns this into a sprint — and sprinting through immigration is not a thing. On one ticket the airline rebooks you; on two tickets, see the warning below.
Book one ticket and budget the band — 45 min works at Atlanta, never at JFK international.
Same-terminal vs terminal change is the biggest hidden variable: moving terminals adds 20-40 min (modeled 25). JFK T1→T8 = AirTrain 15-25 min then re-clear security; LAX = the cross-terminal T-bus between nine un-walkable terminals; ORD T1↔T5 = the ATS train. Staying put is a 5-15 min walk.
One ticket = the airline owns the risk: if you misconnect, it must rebook you on the next available flight at no charge, forward your bags, and on long overnight delays usually cover meals and a hotel.
Separate tickets = you own the risk: the second airline owes you nothing — no rebooking duty, no refund — and a same-day walk-up fare typically runs $200-600.
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Vanliga misstag
Att budgetera med högsäsongsmedel.
Att ignorera visumhandläggningstiderna innan bokning.
Vanliga frågor
Is a 45-minute connection at Atlanta (ATL) actually doable?
Why do international arrivals need so much more connection time?
What is the danger of booking two separate tickets?
What happens if I misconnect on a single ticket?
Does it matter whether the connection stays in the same terminal?
Should I add time for peak and holiday travel?
Does Global Entry speed up the connection after an international arrival?
When do I have to claim and recheck my bags during a connection?
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