SN vs KL · 2026 comparison
Brussels vs KLM
Brussels wins on a bigger carry-on; KLM wins on a more generous carry-on weight limit. Here's how they compare on bags, fees, comfort, reliability and loyalty.
Verified Oct 17, 2026By Steven MoHow we check Report a correction
Brussels
SNWins 1 category
- A bigger carry-on
KLM
KLWins 1 category
- A more generous carry-on weight limit
Quick verdict
Brussels wins on a bigger carry-on; KLM wins on a more generous carry-on weight limit. Check the cheapest fare's bag rules before you compare prices.
- Carry-on size
- Brussels: 55 × 40 × 23 cm · KLM: 55 × 35 × 25 cm
- Carry-on on the cheapest fare
- Brussels: Not on some basic fares · KLM: Not on some basic fares
Side by side
| Brussels | KLM | |
|---|---|---|
| Bags | ||
| Carry-on size | 55 × 40 × 23 cm | 55 × 35 × 25 cm |
| Carry-on on the cheapest fare | Not on some basic fares | Not on some basic fares |
| Carry-on weight limit | 8 kg (17.6 lb) | 12 kg (26.5 lb) |
| Personal item | 40 × 30 × 15 cm | 40 × 30 × 15 cm |
| Network | ||
| Alliance | Star Alliance | SkyTeam |
| Loyalty program | Miles & More | Flying Blue |
| Main hubs | BRU | AMS |
Highlighted values are better for travelers. Fees are for U.S. domestic economy flights; on-time data is 2025 U.S. DOT figures for each airline's own flights.
Bags and fees
Brussels allows a carry-on up to 55 × 40 × 23 cm (21.7 × 15.7 × 9.1 in), and KLM up to 55 × 35 × 25 cm (21.7 × 13.8 × 9.8 in), so Brussels's is roomier.
Brussels's Economy Basic can be personal-item only, while KLM's Basic / Light can be personal-item only.
Carry-on weight limits: 8 kg (17.6 lb) on Brussels, 12 kg (26.5 lb) on KLM.
Personal items: 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on Brussels, and 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on KLM.
Basic economy
Brussels (Economy Basic): Economy Basic within Europe includes only a personal item; Economy Light keeps the 8 kg carry-on.
KLM (Basic / Light): The Basic fare on short-haul routes includes only a small under-seat bag. Light fares include a cabin bag but no checked bag.
Loyalty and where they fly
Brussels is in Star Alliance and KLM is in SkyTeam.
Loyalty programs: Miles & More (Brussels) and Flying Blue (KLM).
Brussels's main hubs are BRU. KLM's are Amsterdam (AMS). The best choice often comes down to which airline flies nonstop from your airport.
Which should you book?
Choose Brussels if you want…
- a bigger carry-on
- to earn and use Star Alliance miles and status
- nonstops from BRU
Choose KLM if you want…
- a more generous carry-on weight limit
- to earn and use SkyTeam miles and status
- nonstops from AMS
On a route both fly, the cheaper ticket isn't always the cheaper trip: add the bags you'll actually bring, and check the fare rules before you book.
Brussels vs KLM FAQ
It depends on what matters most to you. Brussels wins on a bigger carry-on; KLM wins on a more generous carry-on weight limit. If they fly the same route, compare the total price with bags included.
Keep comparing
Bag rules and fees
Other comparisons
Connecting at their hubs
Sources
Last verified Oct 17, 2026. Airlines change their rules without notice, so confirm with the airline before you fly.
- Brussels Airlines official baggage policy
- Travel Extra: Lufthansa Group rolls out Economy Basic on all European flights from Oct 27, 2026
- Upgraded Points: carry-on size chart for 63 airlines (updated May 16, 2026)
- KLM official baggage policy
- Travel-Dealz: Air France and KLM Basic fare without a cabin bag
Read how we collect and check this data, or tell us if something's out of date.
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