行李额度查询
主流航司免费托运 / 手提额度速查（经济舱常见口径），打包不超限、不交冤枉钱。
以下为经济舱常见免费额度，实际以航司官网出票为准；廉航（如春秋、亚航）托运通常需另购。
中文介绍
行李超重费常常比机票还贵。这个工具整理主流航司经济舱的免费托运与手提额度，出发前对照打包，避免机场现场补交高额超重费。
注意：额度随航线、舱位、会员等级而变，本表为常见口径，请以航司出票信息为准。
常见问题
廉航为什么没有免费托运？
廉航（春秋、亚航、瑞安等）把托运拆出来单独收费以降低票价，订票时可按需加购。
手提行李有尺寸限制吗？
有。常见上限 55×40×20cm（约 20 寸登机箱），超过需托运；液体单件 ≤100ml 并装透明袋。
超重了怎么办？
提前在航司官网购买超重额度比现场便宜得多；国际线超重按公斤收费，建议出行前预购。
English
Excess baggage fees often cost more than the ticket. This tool lists free checked and carry-on allowances for major airlines (economy), so you can pack within limits and avoid airport surcharges.
Note: allowances vary by route, cabin and status — this is a common reference; always follow your ticketed allowance.
FAQ
Why do low-cost carriers have no free checked bag?
Budget airlines (Spring, AirAsia, Ryanair, etc.) unbundle checked baggage to lower fares; you buy it as an add-on when booking.
Is there a size limit for carry-on?
Yes. A common limit is 55×40×20cm (~20-inch cabin case); oversized items are checked. Liquids are capped at 100ml each in a clear bag.
What if I'm overweight?
Buying extra allowance on the airline's site in advance is far cheaper than at the airport; international excess is charged per kg.