FI vs LX · 2026 comparison

Icelandair vs SWISS

Icelandair wins on a carry-on on its cheapest fare and a more generous carry-on weight limit; SWISS 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

Icelandair

FI

Wins 2 categories

  • A carry-on on its cheapest fare
  • A more generous carry-on weight limit

SWISS

LX

Wins 1 category

  • A bigger carry-on

Quick verdict

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

Carry-on size
Icelandair: 55 × 40 × 20 cm · SWISS: 55 × 40 × 23 cm
Carry-on on the cheapest fare
Icelandair: Included on every fare · SWISS: Not on some basic fares
First checked bag (regular economy)
Icelandair: 1 free bag · SWISS: 1 free bag

Side by side

IcelandairSWISS
Bags
Carry-on size55 × 40 × 20 cm55 × 40 × 23 cm
Carry-on on the cheapest fareIncluded on every fareNot on some basic fares
Carry-on weight limit10 kg (22 lb)8 kg (17.6 lb)
Personal item40 × 30 × 15 cm40 × 30 × 15 cm
First checked bag (regular economy)1 free bag1 free bag
Network
AllianceNoneStar Alliance
Loyalty programSaga ClubMiles & More
Main hubsKEFZRH

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

Icelandair allows a carry-on up to 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in), and SWISS up to 55 × 40 × 23 cm (21.7 × 15.7 × 9.1 in), so SWISS's is roomier.

Icelandair includes it on every fare, while SWISS's Economy Basic can be personal-item only.

Carry-on weight limits: 10 kg (22 lb) on Icelandair, 8 kg (17.6 lb) on SWISS.

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

Icelandair includes one bag with Economy Standard on flights between the U.S. and Iceland, and SWISS includes one bag with Economy Classic on flights between the U.S. and Switzerland.

Basic economy

Icelandair (Economy Light): Economy Light includes a carry-on and a personal item, but no checked bag.

SWISS (Economy Basic): Economy Basic on European routes includes only a personal item (40 × 30 × 15 cm), no carry-on, checked bag or seat choice. Economy Light keeps the 8 kg carry-on, and Miles & More Senators and Star Alliance Gold members may still bring one.

Loyalty and where they fly

Icelandair is not in an alliance and SWISS is in Star Alliance.

Loyalty programs: Saga Club (Icelandair) and Miles & More (SWISS).

Icelandair's main hubs are Reykjavík (KEF). SWISS's are Zurich (ZRH). The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose Icelandair if you want…

  • a carry-on on its cheapest fare
  • a more generous carry-on weight limit
  • nonstops from KEF

Choose SWISS if you want…

  • a bigger carry-on
  • to earn and use Star Alliance miles and status
  • nonstops from ZRH

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.

Icelandair vs SWISS FAQ

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

Deals on Icelandair, SWISS and more

Whichever airline you prefer, we'll email you when fares from your home airports drop well below normal.

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