Free travel tools
Free calculators built on sourced, dated airline and airport data: bag fees and sizes, airline comparisons, connection times, airport guides and plug adapters.
Carry-On Size Checker
Check your bag against the carry-on and personal item limits of 81 airlines.
Open tool NewChecked Bag Fee Calculator
What checked bags cost on 44 airlines, in dollars, online or at the airport.
Open tool NewAirline Comparison
Compare two airlines on bags, fees, legroom, Wi-Fi and on-time performance.
Open tool NewLayover Time Calculator
See how long a connection you need at 56 airports, step by step.
Open tool NewAirport Guides
Getting into town, lounges, hotels, parking and airlines at 112 airports.
Open tool NewPlug Adapter Finder
Plug types, voltage and the adapter you need in 228 countries.
Open toolFree Travel Widgets
Put our carry-on checker, bag fee and layover calculators on your own site.
Open toolMore tools coming soon
Have an idea for a tool that would help you travel more? Email hello@goodflightdeals.com.
Why we built these
Plan smarter, travel more
A cheap fare is only cheap if the bag fees, basic-economy rules and a missed connection don't eat the savings. Our tools answer those questions with data we check against each airline and airport. Good Flight Deals handles the fare itself by alerting you when flights from your home airport drop.
- Free to use
- No account needed
- Built for US travelers
Ready to go?