KL vs SK · 2026 comparison

KLM vs SAS

KLM wins on a more generous carry-on weight limit; SAS wins on a bigger carry-on. Here's how they compare on bags, fees, comfort, reliability and loyalty.

Verified Oct 17, 2026By Steven MoHow we check Report a correction

KLM

KL

Wins 1 category

  • A more generous carry-on weight limit

SAS

SK

Wins 1 category

  • A bigger carry-on

Quick verdict

KLM wins on a more generous carry-on weight limit; SAS wins on a bigger carry-on. Check the cheapest fare's bag rules before you compare prices.

Carry-on size
KLM: 55 × 35 × 25 cm · SAS: 55 × 40 × 23 cm
Carry-on on the cheapest fare
KLM: Not on some basic fares · SAS: Not on some basic fares

Side by side

KLMSAS
Bags
Carry-on size55 × 35 × 25 cm55 × 40 × 23 cm
Carry-on on the cheapest fareNot on some basic faresNot on some basic fares
Carry-on weight limit12 kg (26.5 lb)8 kg (17.6 lb)
Personal item40 × 30 × 15 cm40 × 30 × 15 cm
Network
AllianceSkyTeamSkyTeam
Loyalty programFlying BlueEuroBonus
Main hubsAMSCPH, OSL, ARN

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

KLM allows a carry-on up to 55 × 35 × 25 cm (21.7 × 13.8 × 9.8 in), and SAS up to 55 × 40 × 23 cm (21.7 × 15.7 × 9.1 in), so SAS's is roomier.

KLM's Basic / Light can be personal-item only, while SAS's Light can be personal-item only.

Carry-on weight limits: 12 kg (26.5 lb) on KLM, 8 kg (17.6 lb) on SAS.

Personal items: 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on KLM, and 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on SAS.

Basic economy

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.

SAS (Light): Light fares on domestic and European flights include only a personal item; Standard and higher fares, and long-haul fares, include the 8 kg carry-on.

Loyalty and where they fly

Both are SkyTeam members, so status and miles can work across the two.

Loyalty programs: Flying Blue (KLM) and EuroBonus (SAS).

KLM's main hubs are Amsterdam (AMS). SAS's are CPH, OSL, ARN. The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose KLM if you want…

  • a more generous carry-on weight limit
  • to earn and use SkyTeam miles and status
  • nonstops from AMS

Choose SAS if you want…

  • a bigger carry-on
  • to earn and use SkyTeam miles and status
  • nonstops from CPH, OSL, ARN

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.

KLM vs SAS FAQ

It depends on what matters most to you. KLM wins on a more generous carry-on weight limit; SAS wins on a bigger carry-on. If they fly the same route, compare the total price with bags included.

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