| Manufactor Serial Number | Type | Serial / Registration Number | Owner | Fate |
| 1 | Letov Sm-1a | L-BSEE | Civil Owner | |
| 14 | Letov S-6 | L-BORA | Civil Owner | Reregistered |
| 1 | Letov S-10 | OK-LIX | Civil Owner | |
| 4 | Letov S-10 | OK-LIC | Civil Owner | |
| 7 | Letov S-10 | L-BAAO | Civil Owner | Reregistered |
| 7 | Letov S-10 | OK-AAO | Civil Owner | |
| 12 | Letov S-10 | L-BILL | Civil Owner | Reregistered |
| 12 | Letov S-10 | OK-ILL | Civil Owner | |
| 13 | Letov S-10 | OK-AZC | Civil Owner | |
| 14 | Letov S-10 | OK-LIB | Civil Owner | |
| 16 | Letov S-10 | OK-ARH | Civil Owner | |
| 17 | Letov S-10 | OK-ILS | Civil Owner | |
| 19 | Letov S-10 | L-BAAR | Civil Owner | Reregistered |
| 19 | Letov S-10 | OK-AAR | Civil Owner | |
| 20 | Letov S-10 | OK-VAA | Civil Owner | |
| 21 | Letov S-10 | L-BAAT | Civil Owner | Reregistered |
| 21 | Letov S-10 | OK-AAT | Civil Owner | |
| 24 | Letov S-10 | OK-IPD | Civil Owner | |
| 25 | Letov S-10 | L-BIZX | Civil Owner | Reregistered |
| 25 | Letov S-10 | OK-IZX | Civil Owner | |
| 28 | Letov S-10 | OK-AVP | Civil Owner | |
| 29 | Letov S-10 | L-BAAL | Civil Owner | Reregistered |
| 29 | Letov S-10 | OK-AAL | Civil Owner | |
| 30 | Letov S-10 | OK-ILU | Civil Owner | |
| 31 | Letov S-10 | OK-LIL | Civil Owner | |
| 32 | Letov S-10 | L-BAAS | Civil Owner | Reregistered |
| 32 | Letov S-10 | OK-AAS | Civil Owner | |
| 33 | Letov S-10 | OK-VAK | Civil Owner | |
| 35 | Letov S-10 | OK-VAC | Civil Owner | |
| 36 | Letov S-10 | OK-ASG | Civil Owner | |
| 39 | Letov S-10 | OK-ASU | Civil Owner | |
| 40 | Letov S-10 | OK-LIN | Civil Owner | |
| 42 | Letov S-10 | OK-MOA | Civil Owner | |
| 44 | Letov S-10 | OK-VAH | Civil Owner | |
| 45 | Letov S-10 | OK-AVR | Civil Owner | |
| 46 | Letov S-10 | OK-LIA | Civil Owner | |
| 47 | Letov S-10 | OK-VAB | Civil Owner | |
| 49 | Letov S-10 | OK-LIG | Civil Owner | |
| 50 | Letov S-10 | L-BASE | Civil Owner | |
| 51 | Letov S-10 | L-BATA | Civil Owner | Reregistered |
| 51 | Letov S-10 | OK-ATA | Civil Owner | |
| 3 | Letov S-16T | L-BAAP | Civil Owner | |
| 1 | Letov S-616 | OK-AAQ | Civil Owner | |
| 2 | Letov S-18 II | OK-LIH | Civil Owner | |
| 6 | Letov S-18 | OK-LIS | Civil Owner | |
| 10 | Letov S-18 | OK-LII | Civil Owner | |
| 11 | Letov S-18 | OK-MOC | Civil Owner | |
| 19 | Letov S-18 | OK-VAI | Civil Owner | |
| 21 | Letov S-18 | OK-HAB | Civil Owner | |
| 23 | Letov S-18 | OK-OAA | Civil Owner | |
| 1 | Letov S-118 | OK-IPU | Civil Owner | |
| 3 | Letov S-118 | OK-IPR | Civil Owner | |
| 4 | Letov S-118 | OK-AVG | Civil Owner | |
| 5 | Letov S-118 | OK-VAO | Civil Owner | |
| 7 | Letov S-118 | OK-MOK | Civil Owner | |
| 8 | Letov S-118 | OK-HAF | Civil Owner | |
| 9 | Letov S-118 | OK-LAO | Civil Owner | |
| 10 | Letov S-118 | OK-LAP | Civil Owner | |
| 12 | Letov S-118 | OK-AZP | Civil Owner | |
| 1 | Letov S-218 | L-BABK | Civil Owner | |
| 1 | Letov S-218 | OK-IPK | Civil Owner | |
| 1 | Letov S-218 | OK-LUB | Civil Owner | |
| 2 | Letov S-218 | L-BASL | Civil Owner | Reregistered |
| 2 | Letov S-218 | OK-ASL | Civil Owner | |
| 2 | Letov S-218 | OK-MOF | Civil Owner | |
| 3 | Letov S-218 | OK-AZK | Civil Owner | |
| 4 | Letov S-218 | OK-LOC | Civil Owner | |
| 6 | Letov S-218 | OK-LSB | Civil Owner | |
| 8 | Letov S-218 | OK-KOA | Civil Owner | |
| 10 | Letov S-218 | OK-MOM | Civil Owner | |
| 11 | Letov S-218 | OK-AVF | Civil Owner | |
| 11 | Letov S-218 | OK-LOD | Civil Owner | |
| 12 | Letov S-218 | OK-KOD | Civil Owner | |
| 13 | Letov S-218 | OK-ZEA | Civil Owner | |
| 15 | Letov S-218 | OK-SLD | Civil Owner | |
| 17 | Letov S-218 | OK-LEU | Civil Owner | |
| 18 | Letov S-218 | OK-ZOB | Civil Owner | |
| 19 | Letov S-218 | OK-LOE | Civil Owner | |
| 22 | Letov S-218 | OK-VAR | Civil Owner | |
| 23 | Letov S-218 | OK-KLB | Civil Owner | |
| 24 | Letov S-218 | OK-ULC | Civil Owner | |
| 25 | Letov S-218 | OK-IPL | Civil Owner | |
| 26 | Letov S-218 | OK-LAW | Civil Owner | |
| 27 | Letov S-218 | OK-HAD | Civil Owner | |
| 28 | Letov S-218 | OK-BUC | Civil Owner | |
| 29 | Letov S-218 | OK-LBB | Civil Owner | |
| 30 | Letov S-218 | OK-SLA | Civil Owner | |
| 31 | Letov S-218 | OK-LUD | Civil Owner | |
| 32 | Letov S-218 | OK-LOO | Civil Owner | |
| 1 | Letov S-19W | L-BALI | Civil Owner | Reregistered |
| 1 | Letov S-19W | OK-ALI | Civil Owner | |
| 2 | Letov S-19W | L-BALK | Civil Owner | Reregistered |
| 2 | Letov S-19W | OK-ALK | Civil Owner | |
| 3 | Letov S-19W | L-BALL | Civil Owner | Reregistered |
| 3 | Letov S-19W | OK-ALL | Civil Owner | |
| 4 | Letov S-19M | L-BALM | Civil Owner | |
| 5 | Letov S-19W | L-BALN | Civil Owner | |
| 6 | Letov S-19M | L-BALO | Civil Owner | |
| 7 | Letov S-19M | L-BALP | Civil Owner | |
| 1 | Letov S-28 | OK-LOH | Civil Owner | |
| 1 | Letov S-128 | OK-VOT | Civil Owner | |
| 5 | Letov S-228 | OK-VOU | Civil Owner | |
| 39 | Letov S-328 | OK-IEC | Civil Owner | |
| 284 | Letov S-328 | OK-PCA | Civil Owner | |
| 285 | Letov S-328 | OK-PCB | Civil Owner | |
| 286 | Letov S-328 | OK-PCC | Civil Owner | |
| 287 | Letov S-328 | OK-PCD | Civil Owner | |
| 336 | Letov S-328 | OK-PCO | Civil Owner | |
| 337 | Letov S-328 | OK-PCP | Civil Owner | |
| 338 | Letov S-328 | OK-PCQ | Civil Owner | |
| 339 | Letov S-328 | OK-PCR | Civil Owner | |
| 340 | Letov S-328 | OK-PCX | Civil Owner | |
| 341 | Letov S-328 | OK-PCS | Civil Owner | |
| 1 | Letov S-528 | OK-PAK | Civil Owner | to Czechoslovakia |
| 1 | Letov S-528 | OK-VOE | Czechoslovakia Government | |
| 2 | Letov S-528 | OK-PAL | Czechoslovakia Government | |
| 3 | Letov S-528 | OK-PAM | Czechoslovakia Government | |
| 4 | Letov S-528 | OK-PAO | Czechoslovakia Government | |
| 5 | Letov S-528 | OK-PAP | Czechoslovakia Government | |
| 6 | Letov S-528 | OK-PAQ | Czechoslovakia Government | |
| 1 | Letov S-31 | L-BABI | Civil Owner | |
| 2 | Letov S-31 | L-BABL | Civil Owner | Reregistered |
| 2 | Letov S-31 | OK-ABL | Civil Owner | |
| 1 | Letov S-231 | OK-ALZ | Civil Owner | |
| 1 | Letov S-331 | OK-VOD | Civil Owner | |
| 1 | Letov S-32 | OK-ADA | Civil Owner | |
| 2 | Letov S-32 | OK-ADB | Civil Owner | Written Off 1934 |
| 3 | Letov S-32 | OK-ADC | Civil Owner | |
| 4 | Letov S-32 | OK-ADD | Civil Owner | |
| 5 | Letov S-32 | OK-ADE | Civil Owner | |
| 2 | Letov S-39 | OK-ELA | Civil Owner | Converted to S-139 new MSN |
| 2 / 6 | Letov S-139 | OK-ELA | Civil Owner | |
| 6 | Letov S-39 | OK-LEM | Civil Owner | |
| 7 | Letov S-39 | OK-IPH | Civil Owner | |
| 8 | Letov S-39 | OK-ELC | Civil Owner | |
| 9 | Letov S-39 | OK-ELD | Civil Owner | |
| 10 | Letov S-39 | OK-ELE | Civil Owner | |
| 11 | Letov S-39 | OK-ELF | Civil Owner | |
| 12 | Letov S-39 | OK-ELG | Civil Owner | |
| 13 | Letov S-39 | OK-ELH | Civil Owner | |
| 14 | Letov S-39 | OK-ELI | Civil Owner | |
| 15 | Letov S-39 | OK-ELK | Civil Owner | |
| 16 | Letov S-39 | OK-ELN | Civil Owner | |
| 17 | Letov S-39 | OK-ELO | Civil Owner | |
| 18 | Letov S-39 | OK-ELP | Civil Owner | |
| 19 | Letov S-39 | OK-ELQ | Civil Owner | |
| 20 | Letov S-39 | OK-ELR | Civil Owner | |
| 21 | Letov S-39 | OK-ELS | Civil Owner | |
| 2 | Letov S-139 | OK-VOA | Civil Owner | |
| 1 | Letov S-139 | OK-WAN | Civil Owner | |
| 2 | Letov S-139 | OK-VOV | Civil Owner | |
| 3 | Letov S-139 | OK-VOB | Civil Owner | |
| 15 | Letov S-139 | OK-VOC | Civil Owner | |
| 1 | Letov S-239 | OK-LEA | Civil Owner | |
| 2 | Letov S-239 | OK-LEB | Civil Owner | |
| 3 | Letov S-239 | OK-LEC | Civil Owner | |
| 4 | Letov S-239 | OK-ELM | Civil Owner | Reregistered |
| 4 | Letov S-239 | OK-LED | Civil Owner | |
| 5 | Letov S-239 | OK-LEE | Civil Owner | |
| 6 | Letov S-239 | OK-LEF | Civil Owner | |
| 7 | Letov S-239 | OK-LEG | Civil Owner | |
| 8 | Letov S-239 | OK-LEH | Civil Owner | |
| 9 | Letov S-239 | OK-LEI | Civil Owner | |
| 10 | Letov S-239 | OK-LEK | Civil Owner | |
| 11 | Letov S-239 | OK-LEL | Civil Owner | |
| 12 | Letov S-239 | OK-IPI | Civil Owner | |
| 13 | Letov S-239 | OK-ELB | Civil Owner | Reregistered |
| 13 | Letov S-239 | OK-ELL | Civil Owner | |
| Letov S-218A-4 | SM-162 | Suomen Ilmavoimat | Vantaa Finland | |
| Letov S.2 | S2.16 | Czechoslovakia Air Force | Kbely Czech Republic | |
| Letov S.20 | S20.50 | Czechoslovakia Air Force | Reserialed | |
| Letov S.218 | S218.18 | Czechoslovakia Air Force | Reserialed | |
| Letov S.218 | C-49 | Czechoslovakia Air Force | Kbely Czech Republic | |
| Letov S.20 | E-10 | Czechoslovakia Air Force | Kbely Czech Republic | |
| Letov S-50 | D-OPCO | Civil Owner | ||
| Letov S.328 | D-RVDP | Civil Owner | ||
| Letov S-19 | L-BADA | Civil Owner | ||
| Letov S-218 | OK-ABK | Civil Owner | ||
| Letov S-218 | OK-BUB | Civil Owner | ||
| Letov S-4 | OK-IZU | Civil Owner | ||
| Letov S-20 | OK-LEO | Civil Owner | ||