- Airco DH.1:(1915) – Two-seat biplane fighter with single pusher propeller
- Airco DH.1A - Around 70 built with Beardmore engines.
- Airco DH.2 (1915) – Single-seat biplane fighter with single pusher propeller
- Airco DH.3 (1916) – Two-engine biplane bomber. Two prototypes only built; formed basis for later DH.10 design
- Airco DH.3A - Second prototype with a Beardmore engine.
- Airco DH.4 (1916) – Two-seat biplane day bomber with single tractor propeller
- Airco DH.4A Civil version. Built in the United Kingdom. Two passengers in glazed cabin behind pilot.
- Airco DH.4R Single seat racer - 450 hp (3406 kW) Napier Lion engine.
- Airco DH.5 (1916) – Single-seat biplane fighter with single tractor propeller
- Airco DH.6 (1916) – Two-seat biplane training aircraft with single tractor propeller
- Airco DH.9 (1917) – Two-seat biplane day bomber with single tractor propeller.
- Airco DH.9A (1918)- development of DH.9 with Liberty engine
- Airco DH.9C (1921) - conversion of DH.9 as passenger aircraft
- Airco DH.10 Amiens (1918) – Two-engine biplane bomber. First prototype used pusher propeller; second prototype and production aircraft used tractor propellers. Manufactured byDaimler.
- DH.11 Oxford (1919) Variant of DH.10 with radial engines. One prototype built; not produced
- Airco DH.15 Gazelle (1919) - One DH.9A aircraft converted into an engine test-bed.
- Airco DH.16 (1919) - redesign of DH.9A with cabin for four passengers. Used as airliner
- Airco DH.18 (1920) – Single-engine biplane airliner. Cabin for eight passengers