Heathrow is urging ministers to reassess testing requirements for fully vaccinated passengers.
A review of the Passenger Locator Form should also be carried out at the next Global Travel Taskforce review to ensure the UK is aligned with its European competitors.
The call comes as air travel at other major European airports recover faster from the pandemic.
Heathrow’s passenger levels remain 56% down on pre-pandemic levels despite “clear signs” of recovery, with the airport saying the relaxation of international travel rules ahead of October half-term “unleashed pent-up demand”.
This led to almost 100,000 travellers a day, up 144% compared with the same time last year.
More than three million passengers travelled through the London hub in October, delivering a sixth consecutive month of growth. Last month’s numbers were up 144% year-on-year.
The government must also introduce a price stability mechanism to foster investment in production of sustainable aviation fuels (SAF), according to Heathrow.
Heathrow warned that the extent to which it can support the elements of the economic recovery which will be driven by increased international travel and trade, will depend on the Civil Aviation Authority’s next regulatory outcome.
“To deliver the safe, resilient and sustainable airport passengers and exporters need, the regulator must ensure the settlement reflects the size of the asset and costs required to run and invest in it,” Heathrow insisted.
Chief executive John Holland-Kaye said: “As the journey to recovery accelerates, aviation’s ambitions to decarbonise must keep pace.
“We need to keep our foot to the pedal, working to make air travel guilt-free and government must act with a mandate for 10% Sustainable Aviation Fuel by 2030 and a price stability mechanism to upscale SAF usage, if we are to tackle the industry’s biggest challenge – carbon.”