Whitehall Securities Corporation was a wealthy investment company run by Clive Pearson, the son of the founder.
He was interested in aviation, and invested in Metal Propellers Ltd in 1925, and in Airwork Ltd in 1929.
He also invested in Simonds Aircraft in 1928, renaming it Spartan Aircraft Ltd in 1930.
Pearson then took a 50% share in Saunders-Roe (SARO) and combined the two companies to produce the Spartan Cruiser airliner.
To promote the Cruiser Pearson founded Spartan Air Lines on 2 February 1933, which on 12 April started services from Heston Aerodrome to the Isle of Wight.

Meanwhile, Walter Thurgood was making good profits with Jersey Airways, and was starting another airline, Guernsey Airways.
On 1 December 1934, Pearson, along with Great Western Railway and Southern Railway formed a holding company called Channel Islands Airways Ltd to control both airlines, with Whitehall Securities and Thurgood holding two thirds of the shares.

Wanting to expand northwards.
Pearson then founded United Airways on 4 April 1935 through Channel Islands Airways, with Thurgood in charge.
The fleet was to consist of several Spartan Cruisers from Spartan Air Lines, and newly-ordered de Havilland Dragon Rapides, all of which held six to eight passengers.
There were also some pleasure-flying aircraft which would be particularly popular at Blackpool in the coming holiday season.

On 30 April United started services from Spartan’s base at Heston to Blackpool and onwards to the Isle of Man and Carlisle (Kingstown Municipal Airport), with a link by Northern & Scottish Airways (N&SA) from the Isle of Man to  Glasgow.
In May, Whitehall took a controlling interest in N&SA, and although United included its Western Isles routes as an associate airline, it was never formally part of United.
In June 1935 United did take Highland Airways under its wing, but it retained its own identity and a degree of independence.

On 18 June United Airways operated daily services between Blackpool and Leeds, the Isle of Man and Liverpool, and Blackpool and Morecambe.
United had taken over the lease of Blackpool's Stanley Park Aerodrome and were running it for the town's Corporation.
They were also in talks with the independent Hillman's Airways to run services from London to Amsterdam and Berlin and possibly to Norway.

United Airways lasted less than five months, until 30 September 1935, when under Pearson’s command, Spartan and United along with Hillman's Airways, all combined into one new company, Allied British Airways.
That itself only lasted one month, as it was renamed British Airways Ltd on 29 October, and it became a public company on 11 December.
Whitehall Securities Corporation was a wealthy investment company run by Clive Pearson, the son of the founder. He was interested in aviation, and invested in Metal Propellers Ltd in 1925, and in Airwork Ltd in 1929. He also invested in Simonds Aircraft in 1928, renaming it Spartan Aircraft Ltd in 1930. Pearson then took a 50% share in Saunders-Roe (SARO) and combined the two companies to produce the Spartan Cruiser airliner. To promote the Cruiser Pearson founded Spartan Air Lines on 2 February 1933, which on 12 April started services from Heston Aerodrome to the Isle of Wight.
Meanwhile, Walter Thurgood was making good profits with Jersey Airways, and was starting another airline, Guernsey Airways. On 1 December 1934, Pearson, along with Great Western Railway and Southern Railway formed a holding company called Channel Islands Airways Ltd to control both airlines, with Whitehall Securities and Thurgood holding two thirds of the shares.
Wanting to expand northwards. Pearson then founded United Airways on 4 April 1935 through Channel Islands Airways, with Thurgood in charge. The fleet was to consist of several Spartan Cruisers from Spartan Air Lines, and newly-ordered de Havilland Dragon Rapides, all of which held six to eight passengers. There were also some pleasure-flying aircraft which would be particularly popular at Blackpool in the coming holiday season.
On 30 April United started services from Spartan’s base at Heston to Blackpool and onwards to the Isle of Man and Carlisle (Kingstown Municipal Airport), with a link by Northern & Scottish Airways (N&SA) from the Isle of Man to  Glasgow. In May, Whitehall took a controlling interest in N&SA, and although United included its Western Isles routes as an associate airline, it was never formally part of United. In June 1935 United did take Highland Airways under its wing, but it retained its own identity and a degree of independence.
On 18 June United Airways operated daily services between Blackpool and Leeds, the Isle of Man and Liverpool, and Blackpool and Morecambe. United had taken over the lease of Blackpool's Stanley Park Aerodrome and were running it for the town's Corporation. They were also in talks with the independent Hillman's Airways to run services from London to Amsterdam and Berlin and possibly to Norway.
United Airways lasted less than five months, until 30 September 1935, when under Pearson’s command, Spartan and United along with Hillman's Airways, all combined into one new company, Allied British Airways. That itself only lasted one month, as it was renamed British Airways Ltd on 29 October, and it became a public company on 11 December.
United Airways Limited