The Synapse 25 is a bag from Tom Bihn with a volume of 25 liters. The total dimensions, including handles, etc. comes down to 20x13.4x9" making it suitable as carry-on baggage for 86% of all airlines listed below.
Below is a list of all airlines, with each color stating whether the Synapse 25 is allowed as cabin baggage. Green means it is allowed with all tickets, yellow for some tickets, and red for none. In case you are more interested in seeing all available bags for an airline, click the button.
Air Algérie Air New Zealand Air France Air Macau Air Italy Air India Air Seychelles Air Serbia Air Nostrum Air Malta British Airways Boliviana de Aviacion Blue Air Biman Bangladesh Belavia Bangkok Airways Bahamasair Azerbaijan Airlines Avianca Delta Azul flybe Finnair Fiji Airways EVA Air Eurowings Etihad Airways Ethiopian Airlines Enter Air Easyjet Frontier Airlines Horizon Airlines Hong Kong Airlines Hawaiian Airlines Hainan Airlines Garuda Indonesia Iberia Iran Air Indigo Kenya Airways Juneyao Airlines Jetstar Asia Jetstar Airways jetBlue Airways Jet2 Japan Airlines KLM United Airlines Kuwait Air Norwegian Onur Air Pakistan International Scoot SAS Scandinavian Royal Jordanian Republic Airways Qatar Airways Ukraine International Turkmenistan Airlines Turkish Airlines TUI airways Transavia Airlines Tiger Airways Tianjin Airlines Thai Airways TAROM American Airlines Alaska Air Aeromexico LOT Polish Cathay Pacific Alitalia Air Canada (AC) Air Baltic Air Astana Air Asia Aerolineas Argentinas Aeroflot Aegean Airlines China Airlines Cebu Pacific Austrian Atlas Global Asiana Airlines ANA American Eagle Allegiant Air All Nippon Airways (NH) Aircalin AirAsiaX Air Transat Volotea Czech Airlines Croatia Air Conviasa China Southern Airlines Dragonair Kulula Oman Air Middle East Airlines Mango Malaysia Airlines Mahan Air Luxair Lufthansa Lion Air Group Qantas Airways Peach uTair Airlines Swiss International Air Lines Sun Express Sun Country SriLankan Airlines Spring Airlines Spirit Airlines Southwest Airlines South African Airways VivaColombia Virgin Australia Virgin Atlantic Uzbekistan Air Xiamen Wizz Air WestJet Vueling Volaris Gulf Air Trans States Aer Lingus China Eastern Porter Airlines Air Tahiti Air Niugini Emirates Icelandair Shenzhen Airlines Sky Airlines S7 Ryanair Royal Brunei Airlines Regional Express Ravn Alaska TAP Portugal Air China Cayman Airways Cambodia Angkor Air LATAM PenAir TAAG Angola