Connect with Heathrow Airport on Tradeshift Trying to send an invoice to Heathrow Airport? With e-invoicing and early payments on Tradeshift, you can get paid faster, regardless of your existing payment terms. Click on the button below to get started. Send an invoice to Heathrow Airport Not yet doing business with Heathrow Airport? Learn how » Company Description Heathrow is the UK's premier international airport. From here, some 80 airlines fly direct to over 180 destinations worldwide.