British Airways will expand its service between London Heathrow and St Louis to daily for part of summer 2027, less than a year after launching the route.
BA launched four-weekly flights between the two cities in April 2026. It will increase frequencies to five flights a week from 28 March 2027, and operate up to seven flights a week during two periods next summer, from 19 April to 28 June and from 6 September to 30 October 2027.
The expansion will add more than 35,400 seats on the route for summer 2027, representing an 80% increase compared with summer 2026. Flights will continue to be operated by Boeing 787 aircraft.
British Airways Head of Sales North America Hubert Frach said: “We’re delighted to be significantly growing our presence in St Louis for summer 2027 with daily flights to London Heathrow for more than four months of the season.
“The response to this route has been tremendous since launch only five months ago, and this expansion gives customers even greater choice and flexibility, while strengthening connections from St Louis to London, Europe and our global network of more than 200 destinations.”
Explore St Louis President and CEO Brad Dean added: “British Airways’ decision to increase service just months after the route launched is an important sign of the momentum behind this connection and the opportunity ahead for the St Louis region.
“The additional frequency creates greater flexibility for international leisure travellers, tour operators and meeting planners while increasing the St Louis region’s capacity to welcome travellers from the UK and other international markets.”
BA is the only UK airline operating non-stop flights between St Louis and London Heathrow.
