Constant Climate

Constant Climate is our state-of-the-art cold chain product, specially designed for precision management of temperature-sensitive pharmaceutical products. From vital vaccines, biotech products, diagnostic samples and all other temperature-sensitive pharmaceutical materials we ensure it stays in perfect condition every step of the way.  

Dedicated facilities at our three global hubs
Envirotainer, CSafe, Vac-Q-tec and DoKaSch container leasing available
Dedicated trainers to train our teams around the world
Over 100 global Constant Climate network stations

A Global network

Our approved network of over 100 stations are trained to deliver compliance to Good Distribution Practice (GDP), IATA TCR and product SOPs. Our expert teams across the world deliver the highest level of care to maintain the purity, potency and stability of the life-saving medicines we carry. Our extensive network touches every corner of the world and with the strength of our airlines you can trust us to find a solution so that your product arrives in perfect condition.

Our hub at London Heathrow remains the only air carrier airside facility to be GDP certified and WDA licensed by a national competent authority - the UK’s Medicines & Healthcare Products Regulatory Agency (MHRA). 

Our hub in Dublin is certified under the Irish Exporters Association (IEA) GDP Passport programme and provides direct access to over 10 destinations in the USA and Canada for the burgeoning pharmaceutical industry in Ireland.

In Madrid, our GDP certified Constant Climate centre boasts over 900m2 and plays a key role in the routing of pharmaceuticals between Latin America and Europe.

Packaging Solutions

Trusted by the world’s largest pharmaceutical manufacturers, Constant Climate provides both Active and Passive solutions for your cold chain needs.

Our Active solution uses sophisticated heating and cooling containers which maintain stable internal temperatures from -20°C to +25°C regardless of ambient air conditions.

Our Passive solution is designed for the transportation of pre-packaged temperature-sensitive materials further protecting the integrity and quality of pharmaceutical products from life-saving medication to active ingredients. 

Emergency shipping

When you have an urgent shipment that simply must fly, we can combine the speed and guarantee of our Critical product with the care and handling that our Constant Climate product is renowned for.

Put your trust in us

The stringent temperature conditions required for vaccines are vitally important in saving millions of lives every year. IAG Cargo are the trusted partner of Biological E. and have safely delivered billions of vaccines. Take a look at this video to find out more.


Booking Window

Up to 14 days before STD

Freight and Document Cut Off

150 min before STD

Freight and Document Availability

90 min after ATA

Connection Times

180 unitised / 240 loose**
240 unitised / 300 loose**

Weight and Volume Limits

Subject to aircraft type and unit loading device

Booking Restrictions

No Dangerous Goods or product of animal origin via LHR.
We permit Dangerous Goods in ‘excepted quantities’ as intact only through LHR.

Recovery Promise

In the unlikely event that your cargo does not fly as booked we will notify you within 2 hours of ATD. We then ensure your cargo arrives at its destination within 24 hours of the original STA subject to flight schedule

Track and Trace Availability

Track the status of your cargo here.

Allocations Accepted


Special Handling Code

Active - ACT
Passive - PCT

News & insights

The future of immunisation

IAG Cargo transports diptheria vaccines to Venezuela as outbreak persists

India’s pharma exports take flight with IAG Cargo