



Keep passports, medication, money and high-value electronics in your cabin bag and never in a checked piece. Label both inside and outside of each checked case with name, phone and email; photograph contents and the exterior tag before handing over; weigh and measure at home to match the carrier’s published limits.
Standard size limit for a single checked item is the linear sum 158 cm (62 in). Standard weight for economy checked pieces is 23 kg (50 lb); premium cabins often allow up to 32 kg (70 lb). Common US domestic fees: first checked item US$30–35, second US$40–45; overweight surcharges begin at roughly US$75 and climb for heavier items–confirm exact fees on the operator’s tariff before travel.
Liability under the Montreal Convention for international travel is capped at 1,288 SDR. That converts to roughly US$1,700–1,900 depending on exchange rates. File a Property Irregularity Report (PIR) at the arrival desk for missing or damaged baggage, keep the boarding pass and bag tags, and submit a written claim: damage claims within 7 days of receipt, delay claims within 21 days from delivery or from arrival if not delivered.
Pack fragile or irreplaceable items in carry-on; use hard-shell cases or internal padding, secure straps to stop shifting, and remove old routing tags. Use TSA-approved locks if travelling via US airports; attach a bright ribbon or ribbon-like identifier to speed recognition. If items exceed size/weight limits, pay for excess allowance or ship via freight–unchecked overweights are often refused or charged at steep rates.
Buy separate travel insurance or confirm credit-card baggage cover and declare high-value items if the carrier offers declared-value coverage. For claims, submit photos, receipts and the PIR number; expect an initial acknowledgment within 14–30 days and possible final settlement in weeks to months. If the carrier denies a valid claim under an international ticket, escalate using the national enforcement office or the Montreal Convention procedures for reimbursement.
Weighing and measuring checked bags at ticket counters and gates
Weigh and measure checked bags at home: aim for ≤23 kg (50 lb) and combined dimensions ≤158 cm (62 in) to match the most common piece allowances and prevent last‑minute fees.
Standard piece limits: many fares allow one checked piece at 23 kg (50 lb); premium cabins and some international fares permit up to 32 kg (70 lb). Items above 32 kg are typically refused for passenger handling and require special cargo handling or extra charges.
At ticket counters staff use floor scales that report gross weight (bag plus any covers/tags); measurement for size is the sum of length + width + height and includes wheels, handles and external pockets. Carriers usually round up to the nearest cm/inch when comparing to the published linear limit (e.g., 158 cm / 62 in).
Gate checks occur mainly for oversized carry-ons or when the cabin is full; agents use a sizer box for carry-ons and portable scales or the aircraft load plan for suspect items. A checked piece is rarely reweighed at the gate unless loading operations expose a discrepancy or a safety limit is exceeded.
Fee examples (varies by operator and route): typical first checked piece on many US itineraries = $25–35; overweight 23–32 kg = $75–200; overweight above 32 kg often banned or charged $200+. Oversize (over 158 cm) fees commonly fall between $100 and $400 or require special handling via cargo. Always confirm with your carrier before travel.
Practical steps: buy a handheld bag scale and a soft tape measure, weigh and measure after final packing, and keep a carryable spare bag for overflow. Position heavy items near the wheels, split weight across multiple pieces to stay under per‑piece caps, and remove nonessential items if the counter scale shows excess.
If an agent declares a bag overweight at check‑in, request redistribution (move items to another checked bag or personal item) or ask whether the agent can reweigh after repacking; agents will reissue tags when the piece meets the allowance. For gate‑checked carry‑ons, keep medications, travel documents, electronics and one clothing change in a personal item because gate‑checked pieces may be retrieved at the aircraft door or delivered to baggage claim depending on airport procedure.
Declare special items (lithium batteries, sports equipment, musical instruments, fragile or oversized pieces) at check‑in: such items often require advance notice, special labels, weight/size limits different from the standard piece allowance, or cargo booking.
Tagging, sorting and tracking baggage with barcodes, RFID and conveyor systems
Attach the external tag to the top handle, photograph the barcode or RFID serial, and register that identifier in the carrier app at check‑in so staff and systems can match scans to you immediately.
- Tag printing and placement
- Tags are printed on thermal printers at check‑in or self‑service kiosks; include a human‑readable route (three‑letter airport codes) plus a unique machine code encoded in the barcode or RFID chip.
- Secure the tag loop around the primary handle or trolley frame; do not staple through seams or place tags inside external pockets. Photograph front and back of the tag for recovery evidence.
- For fragile or high‑value items, add a second internal copy of the tag number and a tamper‑evident strap.
- Barcode vs RFID – operational differences
- Barcodes: require line‑of‑sight to read, typically scanned at single points (check‑in, transfer belt, loading point, reclaim). Low per‑tag cost and mature infrastructure.
- RFID: passive UHF tags read without line‑of‑sight and support bulk reads at choke points (carousels, sorter inlets, transfer tunnels). Higher per‑tag and reader cost but faster, automated inventory counts.
- Hybrid deployments are common: barcode as universal fallback, RFID for bulk automation and rapid reconciliation.
- Sortation hardware and read points
- Primary sorters: tilt‑tray and cross‑belt units route individual items into dedicated chutes or containers based on destination codes from scans.
- Secondary systems: pushers/diverters and simple belt merges handle final distribution into unit load devices (ULDs) and transfer lanes.
- Key read points where scans register the item’s status: check‑in/self‑drop, upstream conveyor OCR/RFID portals, sorter induction, ULD loading, aircraft loading, arrival offload, transfer handling and carousel release.
- Most modern sortation systems include multi‑camera OCR to retry poor barcode reads and RFID antennas positioned to capture bags passing at speed.
- Data flows and event tracking
- Each scan generates an event record linked to the tag identifier; handlers and ground systems exchange these via standardized messaging so transfer partners know where a bag is in real time.
- Passenger notifications derive from those events: check‑in confirmed, loaded, offloaded, arriving at carousel. Registering the tag number in the operator app speeds up automated alerts.
- Mismatch handling: when identifier and expected flight data differ, systems flag the item for manual inspection at a reconciliation desk to prevent misroute.
- Practical recommendations for passengers
- Photograph tag front/back and the bag itself immediately after check‑in; store images in the carrier app or cloud for quick claims.
- Write the tag number on an internal card and put it inside the bag in case the external tag is removed.
- Consider a passive Bluetooth tracker inside valuable items, but verify the operator’s policy for devices with batteries and for checked items.
- Use brightly colored straps or stickers to speed visual identification at reclaim and reduce chances of manual mis‑sorting.
- What to expect when things go wrong
- Operations teams use recent scan history to locate an item within minutes if it misses a transfer or is left at a previous point; providing the tag number + photo shortens search time.
- At busy hubs, automated sorters can process several thousand items per hour; delayed or unreadable tags typically cause diversion to manual handling queues where recovery takes longer.
Damaged, lost or delayed baggage: claims procedure and compensation
Report damage or missing items at the baggage service office before leaving the terminal and obtain a Property Irregularity Report (PIR) number – the PIR is mandatory for any later claim. Submit a written claim within 7 days for damaged checked items and within 21 days for delayed or missing items; legal action under the Montreal Convention must be started within 2 years of arrival.
Required documentation: PIR number, boarding pass and bag-tag stub, timestamped photos of the bag and damaged contents, original purchase invoices or clear proof of value, serial numbers, repair estimates or final invoices, police report if theft suspected, and all receipts for emergency purchases. Provide scanned copies with the claim and retain originals until the case is closed.
Step-by-step filing: obtain PIR at the airport; complete the carrier’s claim form (online portal or mailed form) attaching the documentation; note the claim reference and the date submitted; file parallel claims with travel insurer or credit-card issuer if applicable. Record every contact (name, badge ID, date, reference number). Typical carrier acknowledgement intervals range from 14 to 60 days – keep a timeline to support escalation.
Compensation parameters: international treaty liability for checked items is commonly capped at 1,288 SDR (approximately $1,700–$1,900 depending on SDR/USD rates) for loss or damage. Settlements may be repair cost, replacement value less depreciation, or cash up to the treaty cap. Reimbursement for essentials purchased during a delay is assessed against receipts and carrier policy; reasonable emergency expenditures are frequently limited (a practical planning figure is $50–$150 per day until bags are returned, subject to carrier rules and receipts).
If a claim is denied or the offer is inadequate, escalate with the national civil aviation authority or consumer-protection agency, submit a formal complaint packet with the PIR and full documentation, and consider filing in small-claims court under the Montreal Convention within the two-year limit. Use credit-card chargeback protections for qualifying purchases and submit a concurrent claim to travel-insurance providers when coverage exists.
Operational recommendations to strengthen any future claim: photograph bag tag and interior contents pre-check-in, place a printed contact sheet inside checked pieces, keep high-value or fragile items in carry-on, retain all purchase receipts, and use card or trip insurance that explicitly covers delay, loss and damage. Preserve every email and receipt; a neat packet of dated evidence materially increases recovery chances. Example of a clear itemized receipt format: best 20 gallon fish tank setup.
Carry-on limits, gate checks and overhead-bin enforcement: carrier and fare differences
Buy priority boarding or a fare that explicitly includes a full-size carry-on if you must keep a bag in the overhead; otherwise plan for a single personal item under-seat and expect possible gate-checking.
Size and weight benchmarks
Typical full-size cabin bag dimensions used by major US trunk carriers: 22 x 14 x 9 in (56 x 35 x 23 cm). Common European maximum: 55 x 40 x 20 cm (21.7 x 15.7 x 7.9 in). Personal item benchmarks: about 18 x 14 x 8–9 in (45 x 35 x 20–23 cm) or smaller (Ryanair-style personal bag often limited to ~40 x 20 x 25 cm). Weight rules: domestic US operators usually do not list a carry-on weight limit; many international and full-service foreign operators cap cabin bag weight at 7–10 kg. Always check the specific carrier/fare before packing.
How fares and carrier type change enforcement
Legacy network carriers generally allow one carry-on plus a personal item on standard and premium fares; basic-economy/lowest-tier fares frequently restrict carry-on to a personal item only and enforce that at the gate. Low-cost carriers commonly require an overhead-bin fee or a paid priority/seat to bring a bag into the cabin; if you skip that fee, expect staff to measure and gate-check noncompliant bags.
Boarding order and seat assignment matter more than bag size in practice: early boarding, exit-row or business-class seats get first dibs on bin space. If bins fill, gate agents will tag and gate-check items from later boarding groups regardless of claimed size.
Gate-check mechanics: agents will tag a bag with a bright gate-check tag and place it in the hold; retrieval is usually at the jet bridge or at baggage claim depending on airport procedures. Never pack medications, travel documents, electronics or irreplaceables in a bag you are willing to gate-check.
Enforcement tactics to avoid fees and surprises:
Measure and weigh your main carry bag including wheels and handles; if dimensions exceed the published allowance, repack immediately into a permitted personal item.
Use soft-sided or compressible bags that can be squashed into bins or under-seat space; a 40L backpack frequently meets personal-item limits and is flexible–see a recommended model here: best backpack for mtg.
Buy priority boarding or a fare bundle if overhead-bin access is mission-critical; the incremental fee often costs less than a checked-bag charge plus the hassle of retrieval.
Prepare a gate contingency kit (zippered pouch with essentials) so you can move valuables into your personal item if gate staff insist on checking a bag.
Regional specifics to watch for: European short-haul operators and many Middle Eastern carriers have strict weight caps for cabin bags; US domestic carriers favor dimensional limits without weight checks but will still measure at the gate. On ultra-low-cost carriers expect precise measuring boxes at the gate and clear paid options to keep a bag onboard.
Small useful hacks: remove a toiletry bag or pair of shoes into your jacket to reduce carry-bag size for gate inspection; carry a lightweight collapsible duffel to consolidate items if faced with mandatory gate-checking; consider a packable sun umbrella that doubles as shade and stows easily: best sun umbrella hear cooling.