Carry-On Only for Réunion Island: Airline Rules and Packing Tips

Réunion Island sits in the Indian Ocean 800 km east of Madagascar. An active volcano (Piton de la Fournaise), dramatic mountain calderas (Cirque de Cilaos, Mafate, Salazie), and a tropical coastline share space with a distinctly French way of life — baguettes, pastis, and metropolitan French prices. As a French overseas department (DOM-TOM), Réunion is legally part of the EU, uses Euros, operates under French law, and is served by Air France as the primary connection from mainland Europe.

Airline Carry-On Quick Reference

Airline	Cabin Bag Max Size	Weight	Notes
Air France (Economy)	55×35×25 cm	12 kg	Plus personal item on long-haul
Corsair (Economy)	55×35×25 cm	10 kg	Charter-style pricing
Air Austral (Economy)	55×35×25 cm	10 kg	Regional + inter-island service
Air Austral (inter-island)	55×35×25 cm	7 kg	RUN-MRU Mauritius hop

There are no budget airlines serving Réunion from mainland Europe. Air France and Corsair are the primary carriers from Paris CDG. This means no Ryanair-style strict sizer enforcement — but Air France's 12 kg limit is generous and genuinely enforced for overweight bags on long-haul.

Air France's long-haul Economy carry-on allowance (12 kg, 55×35×25 cm) is among the most generous of any major carrier. Note the 35 cm middle dimension — narrower than many European carriers' 40 cm limit. Most standard carry-on bags at 40 cm width will still fit in the overhead bin as they are placed lengthways.

What to Pack for Réunion Island

Réunion's geography creates a dramatic climate split:

Coast (Saint-Denis, Saint-Gilles, Saint-Pierre): Hot and humid year-round. Temperatures of 28-32°C with high humidity from November to April (cyclone season). Cooler and drier May to October.

Mountain calderas and volcano: Cool and variable at altitude. Cilaos caldera regularly reaches only 18-22°C even in summer. Mafate — accessible only on foot or by helicopter — has cool nights year-round. The volcano rim at 2,632 m elevation is cold even in January.

Packing for both zones from one carry-on:

• Lightweight base layers that wick moisture (essential for coast humidity)
• 1-2 fleece or mid-layer pieces (caldera evenings and volcano approaches)
• Waterproof rain jacket (caldera weather changes fast)
• Hiking boots or trail shoes — worn on the plane to save space
• Sunscreen (very strong UV at tropical latitude and high altitude)
• Swimwear (1 piece, quick-dry)

The GR R2 Multi-Day Trek: Carry-On Packing Strategy

The GR R2 is Réunion's signature multi-day hiking trail, crossing the island from north to south through all three calderas. It takes 8-12 days end-to-end. The mountain refuges (gîtes) supply bedding and serve meals, which dramatically reduces the gear you need to carry.

Carry-on pack strategy for GR R2:

• Use your 55×35×25 cm cabin bag as your main trail pack (40-50 L backpacks fit this footprint)
• Pack merino wool layers that double as trekking and city clothing
• Wear hiking boots on the plane
• Trekking poles can be checked or shipped ahead via La Poste

The gîtes supply pillows and blankets — no sleeping bag needed, saving approximately 1-1.5 kg.

Airport and Transport Tips

Roland Garros Airport (RUN) is 8 km east of Saint-Denis, Réunion's capital.

• Taxi: Approximately €15-20 to Saint-Denis centre. Taxis are regulated and use meters. Reliable and safe.
• Car hire: Strongly recommended for exploring the island. Réunion has no rail network. The coastal road (RN1 and RN2) links the main towns, but the interior calderas require driving into steep mountain roads. Rental cars are available from all major providers at the airport.
• Inter-island transport: Air Austral operates short-hop flights from RUN to Mauritius (MRU, ~45 min) and Mayotte (MYT). A combined Réunion and Mauritius itinerary is straightforward. The 7 kg inter-island carry-on limit is the constraint — pack a very light personal bag for the hop if you have already checked nothing.

Tips for Flying Carry-On Only to Réunion

• Air France from Paris CDG: The main route is from Paris Charles de Gaulle with a flight time of approximately 10 hours. Air France also operates via Paris Orly depending on the season.
• Corsair: France's dedicated Indian Ocean charter carrier, offering lower fares than Air France on the Paris–Réunion route. Service is more basic but the allowances are comparable.
• Connecting from the UK or Germany: No direct service exists from London, Frankfurt, or Amsterdam. Connections go via Paris CDG or Nairobi. Air France connections from UK airports (LHR, LGW, MAN) via CDG are the most common routing.
• Cyclone season (November–April): Weather disruption is possible. Carry-on-only travel is an advantage — you avoid baggage carousels when connections are tight.
• French customs rules apply: As an EU DOM, Réunion follows EU customs regulations. No duty-free savings on alcohol or tobacco when returning to mainland France.

Bottom Line

Réunion Island is not a budget destination and not served by budget airlines — but it is one of the most geographically spectacular islands in the world. Air France's 12 kg long-haul carry-on allowance is generous enough for most Réunion itineraries, including the GR R2 multi-day trek if you use the gîte system strategically and wear your boots on the plane. Pack for both tropical coast heat and caldera altitude cool, hire a car at the airport, and treat the 10-hour flight from Paris as part of the experience.