Baggage policies determine what you can bring on a flight, how much it costs, and what happens if your luggage gets lost or damaged. These rules vary significantly across airlines and ticket types, making it worth understanding before you book—especially if you're traveling with medical equipment, mobility aids, or valuable items.
Airlines set their own baggage rules, which typically include:
Each airline publishes these policies on their website and in booking confirmations. The fine print matters because a policy that works for one traveler may not suit another's needs.
| Factor | Impact |
|---|---|
| Airline | Each carrier sets different limits and fees |
| Ticket type | Basic economy often includes fewer bags than premium economy or business class |
| Route | International flights sometimes differ from domestic in what's allowed |
| Frequent flyer status | Elite members may get additional baggage allowances |
| Seat purchased | Some airlines tie baggage to specific seat selections or paid upgrades |
Your actual baggage allowance depends on which combination of these factors applies to your specific booking. Two people flying the same route on the same day might have completely different baggage rights based on when and how they purchased their tickets.
Carry-on bags stay with you in the cabin. Most airlines allow one personal item (purse, small backpack) plus one standard carry-on (typically 22 × 14 × 9 inches or similar). Carry-on bags are never charged extra and there's no loss risk—but space is limited, and the dimensions are enforced at the gate.
Checked bags go in the cargo hold. The first checked bag is often included with standard tickets, though some budget carriers charge for any checked luggage. Additional bags incur per-bag fees. Size and weight limits vary but typically range from 50–70 pounds and 62 inches (length + width + height combined). Checked bags carry the risk of delay, loss, or damage, though airlines carry insurance obligations with limits.
Your decision to carry on or check depends on your mobility, what you're traveling with, and your comfort level with luggage handling.
Medical equipment, mobility devices, and assistive aids usually have separate allowances. Wheelchairs, walkers, canes, and oxygen concentrators typically don't count against your baggage limit and aren't charged extra. Most airlines allow these items in addition to your standard baggage.
Medications, medical supplies, and CPAP machines also have distinct rules—they're generally permitted in carry-on luggage and don't reduce your baggage allowance.
However, specific policies vary by airline. If you're traveling with any medical or mobility equipment, verify the airline's policy directly before your trip rather than assuming it's covered.
Airlines charge for excess baggage (beyond your included allowance), oversized or overweight bags, and sometimes for checked bags on budget carriers. Fees typically range from $35 to $200+ per bag depending on the airline and violation type, though exact amounts change frequently.
Baggage fees are non-refundable even if you don't use them, so purchasing an extra baggage allowance in advance can lock in a known cost.
If your checked bag is lost or damaged, the airline's liability is limited by law. In the United States, domestic flights carry a liability cap of roughly $3,500 per passenger (the exact figure is regulated and adjusted annually). International flights have different, typically lower limits under international aviation treaties.
These are maximum limits, and actual compensation depends on proving the loss or damage and its value. Airlines don't automatically pay the full amount—they investigate and may dispute claims.
Valuable items (jewelry, electronics, important documents) should travel in your carry-on. Many airlines exclude liability for valuables in checked bags entirely.
Before you book or pack:
Your baggage needs, budget, and comfort with luggage handling vary. Understanding how baggage policies work lets you make the choice that fits your situation—whether that's paying for extra bags, traveling lighter, or purchasing baggage protection.
