British Airways will increase service from Heathrow to Miami and Seattle this spring.
Both routes will go from twice daily to three times daily; Miami from April 1 to May 31, and Seattle from May 1 to May 31.
The carrier will also increase its Heathrow-Cape Town service from daily to 10 flights per week from March 30 until April 19.
The US and South Africa service increases suggest the airline will have additional aircraft capacity further into the spring.
Head of network and alliances Neil Chernoff said in a statement: “We know that these destinations in the US and Africa are highly sought after, particularly during Spring, so we are pleased to be able to offer more flights to these destinations for our customers who are looking to get away.”
Last week, BA announced plans for additional frequencies from Gatwick to St Lucia, Cape Town and Cancun.
Gatwick-Cape Town is set to rise from 17 flights per week to 19 flights per week from January 10, 2021.
Virgin Atlantic will relaunch Heathrow-Cape Town as a daily service for the winter season on October 25.