The UK's first virtual supermarket is laid out like a traditional store, but with interactive digital 'fridges' displaying everyday products available through Tesco.com.
Travellers passing through the North Terminal can browse the products, and then scan the barcodes of chosen items with their smartphones to add them to an online basket.
After completing their purchase, the customers can book a delivery slot for when they return home from holiday (up to three weeks in advance).
The new Tesco temporary store has an impressive footfall, as around 30,000 people depart from Gatwick's North Terminal every day, and each has an average of 70 minutes of downtime while waiting for their flight.
Tesco's initiative follows a similar digital store opened by the firm in South Korea last year, allowing busy commuters to shop while waiting at subways and bus stops by pointing their mobile phones at billboards displaying the products.
"Our business in Korea is teaching us a lot about how customers and technology are transforming shopping. It gives us a unique window into the future and the chance to try out exciting new concepts," said Tesco's internet retailing director Ken Towle.
"The virtual store blends clicks and bricks, bringing together our love of browsing with the convenience of online shopping.
"It's a chance to showcase what we can do to the 30,000 people a day who will depart from Gatwick's North Terminal, many of whom will need to fill their fridges when they get home, and we're looking forward to hearing what they think."
Tesco's virtual store will be open for business in Gatwick Airport's North Terminal departure lounge during the two busiest weeks of the year, from August 6 to August 19.
There are four interactive touchscreen "fridges" in the virtual store pilot and six digital sites positioned around the departure lounge for passengers to use.
They have around 80 products on offer, including everyday items such as milk, eggs, bread, cheese, pasta, sauce, chicken, cereal, fruit and vegetables.
To use the service, customers need to download the Tesco app from the iTunes App Store and the Google Play market. They also need to register at Tesco.com.
Tesco boss Philip Clarke has recently been driving forward various initiatives aimed at making it easier for people to shop for goods and services.
This includes drive-thru supermarkets (grocery Click & Collect), augmented reality F+F posters and the virtual fitting room.
"It's about following the customer and how they are changing," Clarke said in a speech in June.
"According to one estimate the number of mobile devices will overtake the number of people on earth within five years
"By 2020 everyone under the age of 21 will be a digital native. In their minds there is very little difference between a store and a website and smartphones are as central to their lives as electricity."