Typical cabin allowances: common permitted dimensions for a carry-on are 55×40×20 cm with a weight limit between 7–10 kg on many carriers. Low-cost operators sometimes restrict to 10 kg or require a paid upgrade for a cabin bag; premium fares and priority boarding often allow larger or additional items. Check the fare rules and boarding group to avoid gate refusal or extra charges.
Liquid and battery rules: liquids, gels and aerosols must be in containers no larger than 100 ml and placed together in a single transparent resealable bag of about 1 litre. Duty‑free liquids purchased airside are acceptable when sealed with receipt. Spare lithium batteries and power banks belong in the cabin only; terminals should be covered or taped. Most airlines permit batteries up to 100 Wh without approval; items between 100–160 Wh require airline consent.
Checked-bag pointers: standard checked allowances on many international economy fares range from 20–23 kg per piece; maximum allowed before special handling is often 32 kg. Oversize or overweight items incur fees that escalate sharply–expect surcharge bands such as +5–15 kg and fixed oversize charges. Purchase excess allowance online in advance for lower rates than airport payments.
Security and prohibited items: sharp tools, flammable liquids, explosives, and most weapons are forbidden in the cabin and usually in checked cargo too; medical devices and prescribed medicines should be accompanied by documentation. Place valuables, travel documents and essential medication in the personal item rather than checked baggage.
Practical boarding tips: arrive early, tag carry items visibly, and use a compact personal bag for priority essentials. If overhead bins fill, gate agents may require a bag to be checked at the gate; attach identification and keep essential items with the passenger to avoid disruption.
Carry-on allowances: how airlines define size and weight
Adhere to the carrier’s published external dimensions (handle and wheels included) and stated weight cap; measure the packed cabin bag and keep a 2–3 cm and 1–2 kg buffer below limits to avoid gate surcharges.
Airlines set limits by external measurements (length × width × height) and by weight; many count the entire item including wheels, handles and any attached straps. Regional patterns and typical values are shown below – always verify the specific operator before travel.
Operator type | Typical external size | Typical weight allowance | Gate consequence / typical fee |
---|---|---|---|
International full‑service carriers | 56 × 35 × 23 cm (22 × 14 × 9 in) | Often no formal kg limit; operational requirement to lift into bin – practical target: ≤10–12 kg | If oversized/overweight: may be gate‑checked or charged checked‑bag rates / $0–$200 depending on route |
European low‑cost | Small personal: 40 × 20 × 25 cm; Cabin bag: 55 × 40 × 20 cm | Common cabin cap: 7–10 kg; personal item usually very small | Gate fees common: €25–€80+; refusal to board with larger item without paid upgrade |
US legacy | 56 × 35 × 23 cm (22 × 14 × 9 in) | Most carriers list no numeric weight limit; item must fit overhead and be manually liftable by passenger | No fee if compliant; oversized may be gate‑checked free or charged depending on policy ($75+) |
US ultra‑low‑cost | Typical max: ~56 × 45 × 25 cm (varies) | Often strict (7–10 kg recommended) | Prepaid fees lower; gate fees higher ($40–$175); enforcement strict |
Asian full‑service | 55 × 40 × 20 cm common | Economy often 7–8 kg; premium cabins up to 10–14 kg depending on carrier | Overweight typically charged or required to check; fees vary widely |
How to measure correctly: place the packed cabin item on a flat surface, measure height including wheels and any extended handles, then width and depth at the widest points. Use a handheld luggage scale on the bag’s top handle; aim at least 1–2 kg under the carrier’s stated cap for soft fabrics that can bulge under inspection.
Packing recommendations: prefer soft‑sided bags for slight compressibility, distribute heavy items low and close to wheels for easier lifting, use compression cubes to control shape, and carry dense items in the allowed personal item to lower cabin bag weight. If flying multiple low‑cost operators in one itinerary, plan to meet the strictest size and weight on the ticketed segments.
Gate enforcement typically follows this sequence: visual sizing at boarding, measurement with a template or board if flagged, followed by either gate‑check or fee assessment. Prepaid online upgrades to larger allowance usually cost less than paying at the gate – aim to prepay when feasible.
Practical numeric targets for hassle‑free travel: keep the main cabin bag ≤55 × 40 × 20 cm and ≤7 kg for strict carriers; for broad compatibility aim for ≤56 × 35 × 23 cm and ≤10 kg. For a short reference on cabin monitoring technology see are dome security cameras better.
When a bag must be checked: common triggers and exemptions
Check an item into checked hold if it exceeds the carrier’s cabin dimensions (typical cutoff 22×14×9 in / 56×36×23 cm) or published weight limits (low-cost carriers often set 7–10 kg; mainstream carriers commonly allow more–confirm with the specific airline).
Mandatory checked carriage triggers: weapons and parts (firearms require declaration and locked containers), large quantities of liquids beyond 100 ml, sharp tools, certain sporting gear (surfboards, full‑size skis, bicycles), and items flagged by security for inspection. Ammunition is normally permitted only in checked hold and must follow airline packaging and declaration rules.
Lithium battery rules: spare lithium batteries and power banks are forbidden in checked compartments and must be kept in the cabin; installed batteries between 100 Wh and 160 Wh require airline approval for cabin carriage; batteries over 160 Wh are prohibited from both cabin and checked storage.
Gate‑check orders occur when overhead storage is full or an item cannot be stowed safely; gate agents may redirect a compliant item to the checked hold. Damage risk rises with gate‑check handling, so fragile items should be boxed or purchased with added insurance or shipped separately.
Common exemptions from compulsory checked handling: mobility aids and manual wheelchairs (transported free, often gate‑to‑aircraft), essential medical devices and medications (documented and usually allowed in cabin), sealed duty‑free liquid purchases with receipts and tamper‑evident bags, and small musical instruments that fit under a seat or overhead. Large instruments may require an extra seat or supervised checked handling; confirm policies and reserve space in advance.
Practical recommendations: declare restricted items at check‑in, obtain written airline approval for oversized batteries or instruments, label fragile checked items, and review both departure and arrival country rules for controlled goods. Compact collapsible umbrellas typically stow under a seat; full‑length can be routed to checked hold–consider a compact model such as best handheld sun umbrella.
Liquids, batteries and restricted items allowed in the cabin
Place liquids in containers of 100 ml (3.4 fl oz) or less, fit all containers into a single transparent resealable plastic bag with a maximum volume of 1 litre; limit one such bag per passenger.
Medications, baby milk/food and medically necessary liquids may exceed 100 ml but must be declared at security and presented separately; carry supporting documentation or prescriptions when available.
Duty‑free liquids larger than 100 ml remain permissible in the cabin only if sealed in an airport-issued tamper‑evident bag (STEB) with the purchase receipt visible; retain the bag and receipt until final destination and check onward flight/transfer rules beforehand.
Aerosols and sprays for personal care are restricted to 100 ml per container and must be inside the same 1‑litre bag; flammable aerosols, fuel, solvents, lighter refills and paint products are forbidden in carry‑on and usually in checked baggage as well.
Spare lithium batteries and power banks must be carried in the cabin only; terminals must be insulated (tape over contacts or use original packaging) and each unit carried separately to prevent short circuits.
Rechargeable lithium‑ion batteries: up to 100 Wh per battery allowed in the cabin without airline approval; batteries between 100 Wh and 160 Wh require airline approval and are usually limited to two spares per passenger; batteries over 160 Wh are prohibited in both cabin and checked baggage.
Non‑rechargeable lithium (lithium metal) batteries typically allowed in small quantities when installed in equipment; spare lithium metal batteries with greater than 2 g lithium content are restricted or banned–check supplier markings and airline rules.
Convert mAh to Wh using Wh = (mAh × V) / 1000. Example: a 20,000 mAh power bank rated at 3.7 V ≈ 74 Wh, which is acceptable as a spare in the cabin under the ≤100 Wh limit.
Sharp objects, sporting goods and tools: knives, box cutters, ice axes, baseball bats and tools longer than about 6–7 cm at the blade/point are not permitted in the cabin and must be placed in checked baggage where allowed; small scissors and cutlery are often restricted by blade length–verify specific airport/airline rules.
Firearms, ammunition, explosives, corrosives, and self‑defence sprays are prohibited in the cabin. Firearms may be transported in checked baggage only after prior airline notification, unloaded and secured in a locked hard‑sided container; ammunition packaging rules and quantity limits depend on carrier and national law.
When in doubt, consult the operating carrier and the departure airport security guidance before departure and declare any items that could be classed as dangerous goods; failure to declare restricted items may lead to confiscation, fines or criminal penalties.
Gate‑check and last‑minute checking: procedures and passenger options
Request gate‑check immediately at the boarding gate when overhead bin space is exhausted; present boarding pass and identification, accept the tag and keep the stub photo for tracking.
Standard gate‑check flow: airline agent inspects the item, affixes a gate tag (often color‑coded), hands the tagged article to ground staff at the jet bridge, and the tag stub is returned to the passenger. Smaller items and infant equipment are frequently returned at the aircraft door; larger pieces are directed to the baggage system and collected at the carousel.
Curbside and counter last‑minute options: if arriving late to check at the counter, request curbside or ticket‑counter acceptance – fees and weight limits follow the carrier’s checked‑bag rules unless agent grants a waiver. Final acceptance cutoff aligns with door‑close times set by the carrier; once doors are closed, options are limited to gate‑check only.
Fees and priority handling vary by carrier and fare class. Many carriers waive gate‑check fees for space constraints or for families with small children; priority or expedited retrieval is often available for elite, premium cabin, or paid priority tags. Confirm specific fee tables and priority rules with the carrier’s contract of carriage before travel.
Risk mitigation: remove cash, travel documents, electronics, medication and irreplaceables before handing the item over; photograph contents and the gate tag barcode; write contact details visibly on the exterior and include a copy inside. File claims immediately at the airline’s baggage office for loss or damage, keeping tag stubs and receipts.
Timing and retrieval expectations: gate‑checked items intended for the cargo hold usually appear at the main baggage claim for that flight; items returned at the aircraft or curbside will be available at the jet bridge or curb. Ask gate staff at boarding about the expected retrieval point for a specific tagged article.
Special‑item handling: strollers, car seats and wearable infant carriers are commonly accepted at the gate at no charge; bulky sports equipment or oversize pieces may require counter check and additional fees. Request fragile handling notation when handing over delicate gear.
If denial of gate‑check occurs, options include consolidating contents into a permitted cabin item, purchasing a checked‑bag allowance at the counter or accepting boarding without the item (when allowed by the carrier). Keep interactions with gate agents concise and cite fare class or family status for priority consideration.
Overhead bin space and boarding order: claiming and securing your carry‑on
Board in the earliest eligible group and stow a roller bag wheels‑first with the handle facing the aisle to maximize chance of a top‑shelf spot.
Boarding order tactics
Purchase priority or select a fare class that includes early boarding when bin space is likely to be limited; common qualifiers: premium cabins, elite status, paid priority, families with small children and passengers needing assistance. Arrive at the gate at least 20–25 minutes before boarding starts to verify the boarding group and confirm gate agent policies on oversize carry‑ons.
If assigned a late boarding group, switch to a soft‑sided tote or briefcase that fits under the seat rather than competing for overhead space. When a connecting service from a different carrier is involved, request assistance from the gate agent to reserve bin space or arrange gate‑check before boarding lines form.
Stowage and security techniques
Common cabin bin dimensions vary by aircraft; narrow‑body bins typically accept bags up to about 22 x 14 x 9 in (56 x 36 x 23 cm). For best fit: place spinner wheels‑first standing upright, or lay a hard case flat with wheels toward the fuselage; soft duffels may be compressed into gaps. Put heavier items closest to the bin floor and toward the fuselage center to reduce shifting during turbulence.
Use a visible ID tag and a colored luggage strap to speed retrieval and deter accidental removal. Lock exterior compartments with a TSA‑approved lock only; valuables, medications and fragile gear belong under the seat. If the bin appears overloaded, hand the gate agent a request to gate‑check–this avoids forced checking at the jet bridge or inflight bin removal.
Before takeoff, slide the bag fully in so the bin door closes without forcing; an improperly closed door risks shifting and in‑flight injury. During flight, avoid repeated retrievals; retrieve larger items only during calm cabin service or after seatbelt sign is off to prevent items falling out. Upon arrival, remove personal essentials first and position the bag toward the aisle for faster deplaning if front exit is desired.
Removing luggage from the aircraft: post‑landing claims and emergency rules
Immediate instruction: remain seated and obey cabin crew; personal bags may be retrieved only after crew and ground staff explicitly authorise disembarkation.
- If an item is missing after arrival:
- Report to the airline baggage/service desk or transfer desk at the gate before leaving the secure area; obtain a Property Irregularity Report (PIR) number and written confirmation.
- Collect and keep: boarding pass, baggage tag(s), PIR reference, photos of the bag and its contents, original purchase receipts and serial numbers for high‑value items.
- Submit a written claim to the carrier. Typical deadlines: damaged items – within 7 days of receipt; delayed items – within 21 days from the date the bag should have arrived. Check the carrier’s contract of carriage for exact timeframes.
- Expect liability caps under the Montreal Convention (standard limit: 1,288 SDR per passenger; approximate value fluctuates – roughly US$1,600–1,900 as of mid‑2024). Declare higher value at check‑in if required and retain the declaration receipt.
- If an item was left on board seat or overhead bin:
- Inform the gate agent immediately; many airlines hold found cabin items at the gate or transfer them to airport lost‑and‑found.
- Holding periods vary by carrier and airport: expect anything from 48–72 hours to 7–30 days. Confirm collection window and retrieval location on the PIR.
- Use the PIR reference for phone and online tracking; escalate to the airline’s baggage resolution centre if no action within the carrier’s stated timeframe.
- Evacuation and emergency rules (strict):
- Do not attempt to retrieve personal effects during an evacuation. Prioritise personal safety and rapid exit; retrieving items delays evacuation and increases risk of injury or death.
- Only crew, rescue personnel or authorised investigators may re‑enter the aircraft. Re‑entry before clearance can lead to denial of insurance claims, fines or criminal charges in some jurisdictions.
- After emergency operations conclude, follow official instructions to recover items; documentation is typically controlled by airline incident teams or law enforcement – request written receipts for any items returned.
- Evidence and documentation checklist for stronger claims:
- Boarding pass, baggage tags, PIR number
- Photos of damage/missing item and surrounding area
- Original purchase receipts, serial numbers, credit card statements (if purchased with card)
- Correspondence copies with the carrier, timestamps of phone calls
- Third‑party insurance policy number and contact details; contact insurer immediately after filing PIR
- Practical tips and escalation:
- File formal written claims by registered mail or the carrier’s designated online form; keep proof of submission.
- If the carrier fails to respond or rejects a valid claim, escalate to the national aviation consumer protection authority or pursue civil claim under Montreal/Warsaw rules. Retain all originals; scan copies for legal use.
- For fragile items such as umbrellas or electronics, photograph packaging/condition at arrival; an example product for documentation practice: best cnatilevered umbrella.
Follow the airline’s on‑site instructions after landing and meet all written claim deadlines; well‑organised documentation and immediate PIR filing materially increase chances of full reimbursement or expedited return.