Carry-On Only for Reykjavik: Packing Guide & Airline Rules

Reykjavik, Iceland's capital, offers two completely different travel experiences depending on when you visit: summer brings midnight sun, puffins, and green lava fields; winter offers northern lights, dramatic snowscapes, and geothermal pools steaming in the dark. Both seasons are excellent. Both reward carry-on packing, because the activities — outdoor adventure, geothermal bathing, glacier walks — require technical layers rather than bulky formal wear, and technical layers compress well.

Airline Quick Reference

Airline	Cabin Bag	Weight	Notes
Icelandair	55×40×23 cm	10 kg	Dominant carrier; relaxed enforcement
PLAY Airlines	45×36×20 cm	7 kg	Budget alternative; stricter limits
easyJet	45×36×20 cm	None stated	UK and select European routes

Icelandair is by far the most practical option for carry-on travellers. The 10 kg allowance is generous, the size limit (55×40×23 cm) accommodates most standard 40 L backpacks, and enforcement at Keflavík Airport is among the most relaxed of any European hub.

Icelandair's Carry-On Policy in Practice

Following WOW Air's bankruptcy in 2019, Icelandair consolidated its position as Iceland's primary long-haul carrier for North American routes (it flies direct from many US and Canadian cities) and the main European hub operator. Key details:

• The 10 kg limit is the same for all economy fare classes — Saga (business) class passengers receive additional allowances
• Icelandair's personal item policy allows a bag that fits under the seat in front — no published size restriction
• Weight enforcement at KEF is genuinely relaxed; bags in the 11–12 kg range are rarely challenged
• The airline's North America–Iceland–Europe routing means some passengers connect onward; always verify the onward carrier's rules separately

Packing for Iceland: The Layering System

Iceland's weather is famously unpredictable — locals say you can experience all four seasons in one day. This is not exaggeration. The system that works:

Base layer (worn, not packed):

• Merino wool or synthetic moisture-wicking top and leggings/long underwear
• Wear this on the plane; it adds zero bag weight

Mid layer:

• Fleece or down insulating jacket that compresses into a stuff sack
• This is your warmest layer for glaciers and winter activities

Outer layer:

• Hardshell waterproof/windproof jacket — non-negotiable regardless of season
• Pack a second packable rain layer or use your outer shell as the sole waterproof

Everything else for 7 nights:

• 2–3 base layer tops (merino wool dries quickly and can be worn multiple times)
• 1–2 pairs of convertible or quick-dry trousers
• 1 swimsuit (mandatory — see below)
• Thermal underlayers for legs if visiting in winter
• Merino wool socks (3 pairs minimum)
• Waterproof hiking boots or trail runners (wear on the plane)

Merino wool is the ideal fabric for Iceland — it regulates temperature, resists odour, dries quickly, and compresses far smaller than cotton. A week of merino layers packs noticeably lighter.

The Swimsuit Is Non-Negotiable

Iceland's geothermal pools are central to the local culture and a must-do for any visitor. You need a swimsuit for:

• Blue Lagoon (Grindavík, near KEF): The world's most famous geothermal spa; towels and robes are rented, swimsuit is required
• Sky Lagoon (Reykjavik): A newer luxury alternative with ocean views
• Sundlaugar (public swimming pools): Reykjavik has several public pools — locals use them daily, entry costs around €10, towels rented on site

All venues rent towels. A swimsuit is not rentable — pack one.

Golden Circle and Activity Planning

Most visitors do at least one major day tour. Common activities:

• Golden Circle: Thingvellir National Park, Geysir hot spring, Gullfoss waterfall — expect waterfall spray; waterproof layer essential
• Northern Lights (winter): Requires darkness and clear skies; guided tours depart from the city
• Glacier walks: Crampons and helmets provided; bring warm layered clothing underneath
• Whale watching: Cold and windy on the water — wear all your warm layers

All are day trips. A 15–20 L daypack inside your main bag covers activity needs.

Airport to City: The Important 50 km Gap

Keflavík International Airport (KEF) is not in Reykjavik — it is 50 km southwest of the city on the Reykjanes Peninsula. This surprises many first-time visitors.

• FlyBus / Airport Express: Shuttle buses run to the BSI bus terminal in Reykjavik and can be pre-booked to drop at major hotels. Journey time: 45–55 minutes. Cost: roughly €25–30 each way.
• Taxi: Approximately €100–120 one way — rarely justified
• Rental car: Most practical if you plan to drive the Ring Road; pick up at KEF

Allow extra time for this transfer when planning arrival and departure logistics.

Bottom Line

Icelandair is one of the most carry-on-friendly carriers in Europe: 10 kg, generous dimensions, and relaxed enforcement at Keflavík. The packing list for Iceland is driven by layers, not quantity — merino wool base layers, one compressible mid layer, one hardshell outer layer, and a swimsuit. Get those right and a week of Icelandic adventure fits comfortably under the 10 kg limit with room to spare. Go in summer for midnight sun; go in winter for northern lights. Either way, the bag strategy is the same.

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Airline rules change — always verify with your carrier before travel.