Free feature·Leave-by calculator

What time do you
actually leave home?

Combine security wait, gate walk, and buffer. One number. Know exactly when to leave home for any flight.

Start free — no card Browse airports

Leave-by calculator

Free · Predicted

Flight departs2:45 PM

AirportDFW

TerminalTerminal D

TSA PreCheck

✓ Active

Result

Security (T-D PreCheck)~11 min

Gate walk to D228 min

Buffer20 min

Latest safe departure from home

1:46 PM

Free: predicted ranges · Pro: live data

4data sources combined

Freefor all users

Prounlocks live data

1 mintime to calculate

One number

Four data sources. One answer.

Security + gate walk + buffer + gate closing rule = departure time. No guessing, no spreadsheet. Input your flight and your trusted traveler status, get your leave-by time.

Security wait time (predicted or live)
Gate walk distance from security to gate
TSA PreCheck or CLEAR lane adjustment
Standard pre-flight buffer + margin

Try the calculator

Example: JFK T4, 3:30 PM flight

Security Standard lane20–38 min

Pick: 38 min (max safe)

Gate walk T4 → T4-C gates12 min

Buffer (unexpected)15 min

Total time needed65 min

Flight time: 3:30 PM

2:25 PM leave home

Trusted traveler modes

PreCheck and CLEAR cut your wait in half.

If you have TSA PreCheck or CLEAR, the calculator knows. We adjust security time instantly and recalculate your leave-by time with the faster lane.

PreCheck lane: usually 5–15 minutes vs 20–40 standard
CLEAR: often under 5 minutes, skip the line entirely
Works for your profile: check one or both
Free shows predicted PreCheck times, Pro shows live

See PreCheck savings

PreCheck savings: LAX T1, 7 AM

Standard lane (no PreCheck)

General queue

42 min

Leave home: 5:48 AM

PreCheck lane (✓ enrolled)

Dedicated checkpoint

11 min

Leave home: 6:17 AM +29 min sleeping in!

What's included

Calculator capabilities

Security

Checkpoint wait times

Predicted ranges for Free, exact live data for Pro. Knows Standard, PreCheck, and CLEAR.

Logistics

Gate walk distances

Terminal-specific walking times from security to gates. Covers major airports worldwide.

Trusted

PreCheck & CLEAR aware

Calculator adjusts for your trusted traveler status. Faster lanes, faster answer.

Buffer

Configurable buffer

Set your comfort level. Conservative, normal, or aggressive departure window.

214

Airports covered across 6 continents

1h42m

Average time saved per flight on Pro

94%

Forecast accuracy within ±7 minutes

Tom W.
Consultant · permanently in transit

FAQ

Questions about the calculator

Can't find it? Email us — we reply within a few hours.

Talk to a human

Security wait times (per checkpoint lane), gate walk distance to your boarding gate, TSA PreCheck/CLEAR lane availability, and a configurable buffer for unexpected delays. Combine them and you get one answer: when to leave home.

Pricing · simple

Priced like a coffee, saves you an hour.

Free

Everything to get started

$0/ year

Forever — no card required

Start free