Checked baggage fees on long-haul routes can add £40–£120 to your trip cost. Then there's the wait at the carousel, the risk of lost luggage, and the drag of hauling a heavy suitcase through terminals. Travelling carry-on only solves all of it — and with the right approach, it's entirely doable even on a two-week trip.
Know Your Allowance First
Cabin baggage rules vary significantly by airline. Before you pack, check the exact size and weight limit for your specific carrier. Here's a quick reference for airlines commonly used on UK routes:
| Airline | Cabin Bag Size | Weight Limit | Personal Item? |
|---|---|---|---|
| Emirates | 55 × 38 × 20 cm | 7 kg | Yes (laptop bag) |
| Qatar Airways | 50 × 37 × 25 cm | 7 kg | Yes (small bag) |
| British Airways | 56 × 45 × 25 cm | 23 kg (!) | Yes (handbag) |
| Turkish Airlines | 55 × 40 × 23 cm | 8 kg | Yes (personal bag) |
| Oman Air | 55 × 40 × 20 cm | 7 kg | Yes (laptop bag) |
Size limits are routinely enforced at gates on African and South Asian routes. Your bag will be measured if it looks borderline. A bag that's 2cm over can result in a gate-check fee higher than the checked baggage cost would have been.
The Carry-On Packing System
The key isn't packing less — it's packing smarter. Most people overpack out of anxiety, not necessity. The "10-item wardrobe" principle works remarkably well for travel: choose neutral, versatile pieces that can be mixed and matched across your entire trip.
Clothing (7 nights example)
- 3 × T-shirts or light tops (roll, don't fold — saves 30% of space)
- 2 × Shirts or blouses (one smart, one casual)
- 2 × Bottoms (trousers or shorts — one smart, one casual)
- 1 × Layer (thin fleece, cardigan, or packable jacket)
- 5 × Socks and underwear (merino wool = less smell, dries fast)
- 1 × Sleepwear (doubles as loungewear)
- 1 × Shoes worn on plane (walking shoes or trainers)
- 1 × Compact sandals or flat shoes in bag
Toiletries (the hard part)
Everything liquid must go in a single clear 1-litre bag, in containers no larger than 100ml. This is where most carry-on attempts fail. The solution: solid alternatives and miniatures.
- Solid shampoo bar — lasts longer than liquid, no 100ml restriction
- Solid conditioner bar or 2-in-1 option
- Toothpaste tablets — airport-friendly, no mess
- Miniature SPF (essential for African and Middle East destinations)
- Deodorant stick or crystal (not spray — pressurised containers have extra rules)
- Single-use face wash sachets — lighter than bottles
- Compact razor (safety razors are fine in carry-on; cartridge blades, not disposable lighters)
Tech and Essentials
- Phone + charger + universal adapter
- Portable power bank (keep in cabin bag — never in checked luggage)
- Noise-cancelling earphones (transforms a long flight)
- E-reader instead of books (saves ~400g per novel)
- Passport + copies stored digitally on phone and in email
- Travel insurance documents (downloaded offline)
Wear your heaviest items on the plane: your thickest shoes, your jacket, your jeans. Nobody weighs what you're wearing. This alone can free up 1–2kg of bag weight.
The Laundry Solution
The reason most people believe carry-on-only is impossible for long trips is laundry. The reality: almost everywhere you travel, there's a solution. Pack a small bag of travel laundry powder and use it in the bathroom sink — clothes dry overnight in warm climates. Most hotels, even budget ones, offer a laundry service for a reasonable fee. Accommodation with self-catering options usually has a washing machine. Seven days of clothes is genuinely enough for a three-week trip if you do laundry once mid-trip.
What to Buy on Arrival
Some things are simply cheaper, lighter, or more practical to buy at your destination rather than carry from home:
- Sunscreen — available everywhere; skip the heavy bottle
- Shampoo and conditioner — local brands are fine and cost almost nothing
- Local SIM card — better value than roaming; buy at the airport on arrival
- Umbrellas and ponchos — cheap locally, heavy and awkward to pack