Flight Tracker
Follow any flight live on a map.
Track a flight →Know what your ticket earns before you book
Free fare class charts and mileage calculators for 16 airlines, plus live flight tracking. No account needed.
- Free, no account neededEvery chart and calculator.
- Built by frequent flyersThe tools we wished existed.
- Over 3,500 flight searchesRun on cwsi.net.
Before you book
Air Canada
Air France
Alaska Airlines
Allegiant Air
American Airlines
Breeze Airways
British Airways
Delta Air Lines
Frontier Airlines
Hawaiian Airlines
JetBlue
Southwest Airlines
Sun Country Airlines
United Airlines
Virgin Atlantic
Compare fare classes Airline alliances All fare charts All calculators
Day of travel
Delta Upgrade Priority
See where you stand on Delta's upgrade list.
Check priority →Reference
Great Circle Distance
Measure the distance between any two airports.
Measure →Airport Information
Codes and current weather for any airport.
Look up an airport →Find an Airport Code
Search by city or airport name.
Find a code →Use it in AI assistants and Slack
Ask Claude or ChatGPT
Ask “What does fare class T earn on Delta?” and get the answer from cwsi.net’s charts.
Connect →Use in Slack
Type /cwsi in Slack to look up a fare class or estimate miles.
Add to Slack →About cwsi.net
We're frequent flyers who built the tools we wished existed. Read our story
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