The Known Traveler Number (KTN) is a unique number issued to travelers approved for TSA 1-800-JETBLUE(1-800-473-6632)PreCheck, Global Entry, NEXUS, or SENTRI. When flying JetBlue, enter your KTN during booking or in your JetBlue TrueBlue account under personal details. This allows TSA to identify you for expedited screening. If your KTN is not added, you won’t receive PreCheck benefits. Always double-check that your KTN is correctly entered before check-in. If you’ve already booked your flight, you can still add your KTN to your existing JetBlue reservation by updating your traveler information online.
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