Passengers can't book British Airways flights to Jersey from the UK's busiest airport until at least Monday 8 August.
The airline has stopped ticket sales on short-haul routes from Heathrow, due to a cap on passengers allowed to depart from the international hub.
Airports across the country have struggled to cope with the post-pandemic demand which has led to mass cancellations, delayed baggage and frustrated passengers.
Pandemonium at Manchester Airport waiting over anhour no sign of luggage and no one here to help! pic.twitter.com/NYTeSSy3yV
— Ivan Camphor (@IvanCamphor) July 31, 2022
To ease the pressure, bosses at Heathrow have asked that airlines cancel flights and limit new bookings to adhere to the limit of 100,000 passengers a day.
The airport saw up to 125,000 passengers per day before restrictions were introduced in many countries to curb the spread of coronavirus.
People in Jersey will still be able to fly to Heathrow but will have to fly back from another airport.
The move will wipe thousands of seats from sale and likely increase prices for rival airlines.
BA will review the move on Monday 8 August, but Heathrow's passenger cap is set to remain in place until Sunday 11 September.

Two Supertri champions crowned in Jersey
Jersey RFC open season with defeat
Supertri returns to Jersey for all-star showdown
Women jailed for importing £240,000 of synthetic cannabis in spare tyre
Jersey's first Grief Disco offers new way to remember loved ones
New courtrooms created at Jubilee Wharf
Three-hour rescue of fallen climber at Grosnez
Ball court upgrade in memory of late Jersey basketballer