Increased capacity from the UK regions to the US this summer is being deployed by transatlantic joint venture partners Virgin Atlantic and Delta Air Lines.

Extra seats from UK regional airports are being offered in addition to seasonal services to Portland and Salt Lake City from Heathrow.

More than five million summer seats are being made available between the UK and US by the partner carriers with flights from London, Manchester, Glasgow, Edinburgh and Belfast.

Delta resumes the UK’s only direct services from London to Salt Lake City from April 2 and Portland, Oregon, from May 4 with fares starting at £545 and £499 respectively, including taxes.

The start of the summer schedule this weekend will see the two airlines run up to 17 flights a week from Scotland to New York JFK and Orlando.

Delta will operate daily services from both Glasgow and Edinburgh airports to JFK with fares leading in at £388.

Virgin Atlantic is trebling the number of seats available between Belfast International and Orlando.

The UK carrier is raising capacity between Manchester and JFK this summer by introducing Boeing 747 onto the service from May.

Virgin Atlantic is also re-introducing seasonal flights between Manchester and Las Vegas, San Francisco and Boston.

A sixth daily frequency between Heathrow and JFK is being added  by Virgin Atlantic while Delta is introducing larger Airbus A330-200s onto its twice daily Heathrow–JFK services.

Together, the airlines will increase capacity between the two hubs by 5%.