Escadrille 103 was formed from Breguet Escadrille 17, which was founded on 2 August 1914 at Longvic.
On 16 November 1914, it re-equipped with Voisins, becoming Escadrille VB.3.
 On 23 November 1914, it was posted to Groupe de Bombardment No.
1, commanded by Commandant Louis de Goys de Mezeyrac.
On 4 March 1915, it was redesignated Escadrille VB.103.
As part of GB.1, the escadrille was cited for its valor on 27 May 1915.
General Ferdinand Foch issued the citation on 1 June.
Foch would issue a second citation on 19 September 1915, based on the bombing raids of the 13th on Ludwigshafen.

On 19 February 1916, the escadrille was converted to an escadrille de chasse (fighter squadron).
 It was issued Nieuports and renumbered as Escadrille N.103.
On 16 April 1916, the unit was amalgamated into Groupement de Combat de la Somme, along with Escadrilles N.26, N.73, and N.3.
Escadrilles N.37, N.62, and N.65 were also temporarily assigned to the groupement.
 All seven units were placed under command of Brocard.
On 1 November 1916, the original four squadrons, including Escadrille N.103, were consolidated as Groupe de Combat 12 (GC 12), under the continuing command of Brocard.
The SPADs in GC 12 bore insignia of storks in different phases of flight and were known as "Les Cignones."

On 28 January 1917, the unit was posted to the Xe Armée.
It transferred to the VIIe Armée in March.
On 12 July, it moved to support Ier Armée in Flanders.
GC 12, including Escadrille 103, was transferred to VIe Armée again on 11 December 1917.

Escadrille 103 continued its service within GC 12, as the group made transitions to support Xe Armée on 5 June 1918; Ve Armée on 17 July; to Ier Armée on 29 July; and to IIe Armée on 9 September 1918.
It received its third citation on the 9th, though the first as fighter unit Escadrille Spa.103.
It was credited with destroying 85 enemy aircraft and disabling 69 others.
Its final tally for the entire war was 108 enemy aircraft and three observation balloons destroyed.
The heritage of the escadrille continues in the present day French air force; it is represented by the top bird on the Escadrille de Chasse 1/2 squadron emblem.
Escadrille 103 was formed from Breguet Escadrille 17, which was founded on 2 August 1914 at Longvic. On 16 November 1914, it re-equipped with Voisins, becoming Escadrille VB.3.  On 23 November 1914, it was posted to Groupe de Bombardment No. 1, commanded by Commandant Louis de Goys de Mezeyrac. On 4 March 1915, it was redesignated Escadrille VB.103. As part of GB.1, the escadrille was cited for its valor on 27 May 1915. General Ferdinand Foch issued the citation on 1 June. Foch would issue a second citation on 19 September 1915, based on the bombing raids of the 13th on Ludwigshafen.
On 19 February 1916, the escadrille was converted to an escadrille de chasse (fighter squadron).  It was issued Nieuports and renumbered as Escadrille N.103. On 16 April 1916, the unit was amalgamated into Groupement de Combat de la Somme, along with Escadrilles N.26, N.73, and N.3. Escadrilles N.37, N.62, and N.65 were also temporarily assigned to the groupement.  All seven units were placed under command of Brocard. On 1 November 1916, the original four squadrons, including Escadrille N.103, were consolidated as Groupe de Combat 12 (GC 12), under the continuing command of Brocard. The SPADs in GC 12 bore insignia of storks in different phases of flight and were known as "Les Cignones."
On 28 January 1917, the unit was posted to the Xe Armée. It transferred to the VIIe Armée in March. On 12 July, it moved to support Ier Armée in Flanders. GC 12, including Escadrille 103, was transferred to VIe Armée again on 11 December 1917.
Escadrille 103 continued its service within GC 12, as the group made transitions to support Xe Armée on 5 June 1918; Ve Armée on 17 July; to Ier Armée on 29 July; and to IIe Armée on 9 September 1918. It received its third citation on the 9th, though the first as fighter unit Escadrille Spa.103. It was credited with destroying 85 enemy aircraft and disabling 69 others. Its final tally for the entire war was 108 enemy aircraft and three observation balloons destroyed. The heritage of the escadrille continues in the present day French air force; it is represented by the top bird on the Escadrille de Chasse 1/2 squadron emblem.
Escadrille 103