EI vs TK · 2026 comparison

Aer Lingus vs Turkish

Aer Lingus wins on a bigger carry-on, a more generous carry-on weight limit and a bigger personal item; Turkish wins on a carry-on on its cheapest fare and cheaper checked bags. Here's how they compare on bags, fees, comfort, reliability and loyalty.

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

Aer Lingus

EI

Wins 3 categories

  • A bigger carry-on
  • A more generous carry-on weight limit
  • A bigger personal item

Turkish

TK

Wins 2 categories

  • A carry-on on its cheapest fare
  • Cheaper checked bags

Quick verdict

Aer Lingus wins on a bigger carry-on, a more generous carry-on weight limit and a bigger personal item; Turkish wins on a carry-on on its cheapest fare and cheaper checked bags. Check the cheapest fare's bag rules before you compare prices.

Carry-on size
Aer Lingus: 55 × 40 × 24 cm · Turkish: 55 × 40 × 23 cm
Carry-on on the cheapest fare
Aer Lingus: Not on some basic fares · Turkish: Included on every fare
First checked bag (regular economy)
Aer Lingus: 1 free bag · Turkish: 2 free bags

Side by side

Aer LingusTurkish
Bags
Carry-on size55 × 40 × 24 cm55 × 40 × 23 cm
Carry-on on the cheapest fareNot on some basic faresIncluded on every fare
Carry-on weight limit10 kg (22 lb)8 kg (17.6 lb)
Personal item40 × 30 × 20 cm40 × 30 × 15 cm
First checked bag (regular economy)1 free bag2 free bags
Network
AllianceNoneStar Alliance
Loyalty programAerClubMiles&Smiles
Main hubsDUBIST

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

Aer Lingus allows a carry-on up to 55 × 40 × 24 cm (21.7 × 15.7 × 9.4 in), and Turkish up to 55 × 40 × 23 cm (21.7 × 15.7 × 9.1 in), so Aer Lingus's is roomier.

Aer Lingus's Saver can be personal-item only, while Turkish includes it on every fare.

Carry-on weight limits: 10 kg (22 lb) on Aer Lingus, 8 kg (17.6 lb) on Turkish.

Personal items: 40 × 30 × 20 cm (15.7 × 11.8 × 7.9 in) on Aer Lingus, and 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on Turkish.

Aer Lingus includes one bag with Smart on flights between the U.S. and Ireland, and Turkish includes two bags with ExtraFly on flights between the U.S. and Türkiye.

Basic economy

Aer Lingus (Saver): Saver fares on European routes include only a small bag; transatlantic fares include a 10 kg carry-on.

Turkish (EcoFly): EcoFly fares include the 8 kg carry-on and a personal item.

Loyalty and where they fly

Aer Lingus is not in an alliance and Turkish is in Star Alliance.

Loyalty programs: AerClub (Aer Lingus) and Miles&Smiles (Turkish).

Aer Lingus's main hubs are Dublin (DUB). Turkish's are Istanbul (IST). The best choice often comes down to which airline flies nonstop from your airport.

Which should you book?

Choose Aer Lingus if you want…

  • a bigger carry-on
  • a more generous carry-on weight limit
  • a bigger personal item
  • nonstops from DUB

Choose Turkish if you want…

  • a carry-on on its cheapest fare
  • cheaper checked bags
  • to earn and use Star Alliance miles and status
  • nonstops from IST

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.

Aer Lingus vs Turkish FAQ

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

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