Why is BA so keen to buy up its low-cost Norwegian rival?

It’s no surprise that in the same week British Airways launched its no-frills fares on long-haul flights, the UK flag carrier considers a move for Norwegian.

After all, the Scandinavian airline is all-but the reason BA felt the need to introduce hand luggage-only fares on its longer routes to compete with more fervour at the budget end of the market.

IAG, BA’s owner, already entered the increasingly vicious low-cost, long-haul fray last year when it launched Level, a Barcelona-based carrier for the price-conscious millennial traveller.

At a glance | How BA's basic fare compares with Norwegian

But bringing Norwegian under its wing by way of takeover would negate the need for a gruelling battle with a carrier that has gone from strength to strength in the last few years, expanding its cheap, transatlantic flights operation across the US, to South America, and even Singapore.

In February, Norwegian celebrated its first flight to Buenos Aires (sold, like the others, from eye-catching base rates, such as ￡259 one-way), by announcing it was eyeing up new routes to Tokyo, Shanghai, Beijing, Detroit, more of South America and the Middle East. Broadly speaking, it was confident its new model of low fares offering basically just a seat - on new, comfortable aircraft - was here to stay.

“Norwegian will continue to pursue further route expansion from London to South America and Asia,” the carrier, which was founded in Norway but has a UK subsidiary, said in a statement.

“The airline is exploring potential new routes to more South American countries due to strong ticket sales on the Buenos Aires route.

“Further Asian expansion will build upon the successful launch of the world’s longest low-cost route to Singapore, with destinations such as Tokyo, Shanghai and Beijing planned.”

While BA carries some 12 million more people a year than Norwegian, the latter, at current trajectory, is catching up.

Norwegian, which entered the budget market in Britain in 2014 with transatlantic services selling from ￡99, also said it was planning an assault on the business class market, adding more premium seats to its new 787 Dreamliner aircraft and increasing the number of flights a week to destinations such as Los Angeles and Miami. It has ambitions for a thrice daily service to New York.

“The UK will be at the heart of our continued global expansion and we remain fully committed to the market,” said CEO Bjorn Kjos. “We are launching long-haul routes exclusively from London Gatwick, introducing our newest Dreamliners to Gatwick and increasing frequency on popular routes which reflects the growing importance of the UK to the future of our business.”

Kjos said Norwegian has “huge global ambitions” and that he is confident “the UK can offer Norwegian a springboard to further expansion as we aim to become the long-haul airline of choice for passengers seeking a high-quality service at great value”.

In December last year Telegraph Travel crunched some numbers, courtesy of the air travel analysts OAG, to see how Norwegian was competing in the transatlantic market.

Top 20 | The biggest airlines for transatlantic travel

The data showed that while BA had increased the number of seats available this winter by 1.1 per cent on the previous year, Norwegian enjoyed a 111 per cent increase, the largest growth for any carrier. It then occupied seventh place in the rankings of most transatlantic seats flown but that position is likely to improve.

The airline’s low base fares, on which it prides itself, come under scrutiny when the cost of checked luggage, meals and seat selection are added, but there’s no doubt about the impressive modern fleet that Norwegian boasts, allowing efficient, comfortable long-haul travel.

Telegraph Travel’s Natalie Paris, travelling on the airline's inaugural flight to Singapore last year, said the 787 Dreamliner made the 13-hour journey “actually a pleasurable experience”.

The carrier, which started life in 1993, is today the third largest low-cost carrier behind Ryanair and Easyjet.

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Norwegian - Norwegian Air Shuttle as it was previously known - began running a regional service between cities on the west coast of Norway, before expanding in 2002 to operate its first UK route - Stavanger to Newcastle.

By 2007, Norwegian was operating out of Warsaw as well as Bergen and had 42 new Boeing 737s on order. Norwegian grew and grew, announcing its long-haul intentions in 2009, before setting up a base in London Gatwick in 2013, from where it still operates.