This table is an attempt to set a date to the various Biggles stories by an analysis of the textual evidence.
| Story | Date | Evidence |
|---|---|---|
| Biggles Learns to Fly! | September 1916 | Stated in the text. |
| Biggles' First Flight | September-October 1916 | After two weeks of training, Biggles travels to France over the course of a few days and flies his first patrol on the first day he reports to 169 Squadron. |
| Biggles the Scout | September-October 1916 | One week after joining 169 Squadron, which he did after about two weeks of training. |
| Spy in the Sky | December 1916-February 1917 | Snowing. |
| Crashed Flyers! | April 1917 | See discussion here. |
| The Laughing Spy | April 1917 | Mention of "early spring frosts". |
| Biggles' Bulls-Eye | April 1917 | |
| Biggles Buys the Sky | April 1917 | Bristol Fighter is just being introduced. |
| Biggles' Big Battle | April-May 1917 | Timing of the Battle of Arras 1917 |
| Biggles' Surprise Packet | June 1917 | See discussion here. |
| Biggles and the Runaway Tank | June 1917 | Stated in text. |
| Spads and Spandaus | June-July 1917 | Summer. Conflicting evidence. See discussion here. |
| Biggles Flies East | October 1917 | In the foreword it is stated that Biggles had been in France for 12 months. |
| Biggles Carves the Turkey | Christmas Eve 1917 | From context |
| Biggles' Sky High Hat Trick | Shortly after 28th March 1918 | Text states that it is "shortly after" Captain J. L. Trollope's feat of shooting down 6 enemy aircraft (later found to be 7) in one day. This took place on 28th March 1918. |
| Biggles Takes the Bait | April - June 1918 | Mention of a "big Hun salient" (the German 1918 Spring Offensive) and the Fokker D.VII. |
| The Black Peril | 1934 | Specifically mentioned in Chapter 14. This reference is removed in the Thames editions published in the 1950s. |
| Biggles in the Baltic | 3rd September 1939 and a few weeks after | Britain declared war on Germany in Chapter 1. |
| Biggles Sees It Through | A few weeks up to 13th March 1940 | The armistice of the Winter War (13th March 1940) was declared in chapter 16 . |
| Biggles Sweeps the Desert | late summer-autumn 1941 | Appearance of the Me 109F |
| Biggles in Borneo | After May 1942 | Japan completed conquest of the Philippines in May that year. |
| Biggles Fails to Return | Nov 1942 | German occupation of Souther France (Case Anton) takes place just as Biggles & Co. make their escape. |
| Biggles Gets His Men | Oct - Nov 1947 | Not plausible in Oct - Nov 1949, improbable in Oct - Nov 1948. |
| Biggles Sets a Trap | 1961 | Stated in text, esp. Ch. 3
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