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nextcard vs Underbook

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

nextcard compared with Underbook
Detailnextcard logo nextcard Underbook
What it doesCheck live TSA security wait times by airport code, name, or city across the U.S. Your hotel, double-checked.
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFree Free
PricingThe TSA wait times tool is free to use. nextcard also offers paid subscription plans: Dining Pro ($9.99/month), Hotels Pro ($9.99/month), Tracking Pro ($12.99/month), and Max ($24.99/month). Not given
Key features
  • Search by airport code, name, or city
  • Compare standard screening, TSA PreCheck, CLEAR, and priority lanes
  • Updated every 5 minutes
  • Covers 51 U.S. airports
  • Compares prices across multiple booking sites for the same hotel and dates
  • Shows all-in prices including taxes and fees
  • Identifies whether a cheaper listing names the same room
  • Displays the going rate most booking sites agree on
  • Price-drop alerts for booked stays
  • Web price checker for phones and computers without install
  • Works on Booking.com, Expedia, Hotels.com, Agoda and hotel websites
  • No account required
  • Never sees payment information
What makes it different
  • Real-time updates every 5 minutes for current security line information
  • Compare multiple security lane types at each airport
  • Completely free with no account or hidden costs
  • Shows whether cheaper sites are legitimate alternatives or unfamiliar booking channels
  • Transparent about limitations and never pretends different rooms are the same
  • Email alerts only for significant price drops of 5% or more on refundable bookings
Community votes00
DR (Domain Rating by Ahrefs)46 −1 (down) since last check1 +1 (up) since last check
Trust Flow (Majestic)210
Citation Flow (Majestic)3319
Referring domains (Majestic)2573

4 details filled in for both companies.

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