Document

Exhibit 21.1

Subsidiaries of Aircastle Limited

As of February 28, 2021

Name of Subsidiary

Jurisdiction

ACS 2007-1 Limited

Bermuda

ACS 2008-1 Limited

Bermuda

ACS 2016 Funding (Bermuda) Limited

Bermuda

ACS 2016 Funding (Ireland) Limited

Ireland

ACS Aircraft Finance Ireland 2 Limited

Ireland

ACS Aircraft Finance Ireland 3 Limited

Ireland

AHCL Two Limited

Bermuda

AYR Bermuda Limited

Bermuda

AYR Delaware LLC

Delaware

10.

AYR Freighter LLC

Delaware

11.

AYR Ireland Holdco Limited

Ireland

12.

Aircastle Advisor Asia Pacific Limited

Bermuda

13.

Aircastle Advisor (International) Limited

Bermuda

14.

Aircastle Advisor (Ireland) Limited

Ireland

15.

Aircastle Aviation US LLC

Delaware

16.

Aircastle Aviation US Two LLC

Delaware

17.

Aircastle Advisor LLC

Delaware

18.

Aircastle Bermuda Securities Limited

Bermuda

19.

Aircastle Funding (Ireland) Designated Activity Company

Ireland

20.

Aircastle Holding Corporation Limited

Bermuda

21.

Aircastle Investment Holdings 2 Limited

Bermuda

22.

Aircastle Investment Holdings 3 Limited

Bermuda

23.

Aircastle Singapore Pte. Limited

Singapore

24.

Aircraft MSN EMB 1 LLC

Delaware

25.

Aircraft MSN EMB 2 LLC

Delaware

26.

Aircraft MSN EMB 3 LLC

Delaware

27.

Aircraft MSN EMB 4 LLC

Delaware

28.

Aircraft MSN EMB 5 LLC

Delaware

29.

Aircraft MSN EMB 6 LLC

Delaware

30.

Aircraft MSN EMB 7 LLC

Delaware

31.

Aircraft MSN EMB 8 LLC

Delaware

32.

Aircraft MSN EMB 9 LLC

Delaware

33.

Aircraft MSN EMB 10 LLC

Delaware

34.

Aircraft MSN EMB 11 LLC

Delaware

35.

Aircraft MSN EMB 12 LLC

Delaware

36.

Aircraft MSN EMB 13 LLC

Delaware

37.

Aircraft MSN EMB 14 LLC

Delaware

38.

Aircraft MSN EMB 15 LLC

Delaware

39.

Aircraft MSN 997 LLC

Delaware

40.

Aircraft MSN 1006 LLC

Delaware

41.

Aircraft MSN 1012 LLC

Delaware

42.

Aircraft MSN 1055 LLC

Delaware

43.

Aircraft MSN 1132 LLC

Delaware

44.

Aircraft MSN 1162 LLC

Delaware

45.

Aircraft MSN 1177 LLC

Delaware

46.

Aircraft MSN 1179 LLC

Delaware

47.

Aircraft MSN 1244 LLC

Delaware

48.

Aircraft MSN 1258 LLC

Delaware

49.

Aircraft MSN 1259 LLC

Delaware

50.

Aircraft MSN 1261 LLC

Delaware

51.

Aircraft MSN 1279 LLC

Delaware

52.

Aircraft MSN 1295 LLC

Delaware

53.

Aircraft MSN 1308 LLC

Delaware

Name of Subsidiary

Jurisdiction

54.

Aircraft MSN 1322 LLC

Delaware

55.

Aircraft MSN 1329 LLC

Delaware

56.

Aircraft MSN 1364 LLC

Delaware

57.

Aircraft MSN 1411 LLC

Delaware

58.

Aircraft MSN 1466 LLC

Delaware

59.

Aircraft MSN 1481 LLC

Delaware

60.

Aircraft MSN 1513 LLC

Delaware

61.

Aircraft MSN 1572 LLC

Delaware

62.

Aircraft MSN 1655 LLC

Delaware

63.

Aircraft MSN 1674 LLC

Delaware

64.

Aircraft MSN 1673 LLC

Delaware

65.

Aircraft MSN 1742 LLC

Delaware

66.

Aircraft MSN 1780 LLC

Delaware

67.

Aircraft MSN 1836 LLC

Delaware

68.

Aircraft MSN 1989 LLC

Delaware

69.

Aircraft MSN 1913 LLC

Delaware

70.

Aircraft MSN 2002 LLC

Delaware

71.

Aircraft MSN 2004 LLC

Delaware

72.

Aircraft MSN 2098 LLC

Delaware

73.

Aircraft MSN 2104 LLC

Delaware

74.

Aircraft MSN 2220 LLC

Delaware

75.

Aircraft MSN 2248 LLC

Delaware

76.

Aircraft MSN 2254 LLC

Delaware

77.

Aircraft MSN 2310 LLC

Delaware

78.

Aircraft MSN 2357 LLC

Delaware

79.

Aircraft MSN 2381 LLC

Delaware

80.

Aircraft MSN 2391 LLC

Delaware

81.

Aircraft MSN 2401 LLC

Delaware

82.

Aircraft MSN 2472 LLC

Delaware

83.

Aircraft MSN 2488 LLC

Delaware

84.

Aircraft MSN 2495 LLC

Delaware

85.

Aircraft MSN 2563 LLC

Delaware

86.

Aircraft MSN 2565 LLC

Delaware

87.

Aircraft MSN 2578 LLC

Delaware

88.

Aircraft MSN 2605 LLC

Delaware

89.

Aircraft MSN 2636 LLC

Delaware

90.

Aircraft MSN 2646 LLC

Delaware

91.

Aircraft MSN 2677 LLC

Delaware

92.

Aircraft MSN 2691 LLC

Delaware

93.

Aircraft MSN 2715 LLC

Delaware

94.

Aircraft MSN 2742 LLC

Delaware

95.

Aircraft MSN 2744 LLC

Delaware

96.

Aircraft MSN 2754 LLC

Delaware

97.

Aircraft MSN 2756 LLC

Delaware

98.

Aircraft MSN 2765 LLC

Delaware

99.

Aircraft MSN 2769 LLC

Delaware

100.

Aircraft MSN 2777 LLC

Delaware

101.

Aircraft MSN 2779 LLC

Delaware

102.

Aircraft MSN 2782 LLC

Delaware

103.

Aircraft MSN 2792 LLC

Delaware

104.

Aircraft MSN 2795 LLC

Delaware

105.

Aircraft MSN 2803 LLC

Delaware

106.

Aircraft MSN 2818 LLC

Delaware

107.

Aircraft MSN 2822 LLC

Delaware

108.

Aircraft MSN 2928 LLC

Delaware

109.

Aircraft MSN 2956 LLC

Delaware

110.

Aircraft MSN 3045 LLC

Delaware

Name of Subsidiary

Jurisdiction

111.

Aircraft MSN 3117 LLC

Delaware

112.

Aircraft MSN 3157 LLC

Delaware

113.

Aircraft MSN 3182 LLC

Delaware

114.

Aircraft MSN 3209 LLC

Delaware

115.

Aircraft MSN 3277 LLC

Delaware

116.

Aircraft MSN 3223 LLC

Delaware

117.

Aircraft MSN 3291 LLC

Delaware

118.

Aircraft MSN 3338 LLC

Delaware

119.

Aircraft MSN 3421 LLC

Delaware

120.

Aircraft MSN 3443 LLC

Delaware

121.

Aircraft MSN 3450 LLC

Delaware

122.

Aircraft MSN 3486 LLC

Delaware

123.

Aircraft MSN 3524 LLC

Delaware

124.

Aircraft MSN 3543 LLC

Delaware

125.

Aircraft MSN 3582 LLC

Delaware

126.

Aircraft MSN 3628 LLC

Delaware

127.

Aircraft MSN 3637 LLC

Delaware

128.

Aircraft MSN 3667 LLC

Delaware

129.

Aircraft MSN 3673 LLC

Delaware

130.

Aircraft MSN 3690 LLC

Delaware

131.

Aircraft MSN 3762 LLC

Delaware

132.

Aircraft MSN 3911 LLC

Delaware

133.

Aircraft MSN 4070 LLC

Delaware

134.

Aircraft MSN 4077 LLC

Delaware

135.

Aircraft MSN 4088 LLC

Delaware

136.

Aircraft MSN 4968 LLC

Delaware

137.

Aircraft MSN 5010 LLC

Delaware

138.

Aircraft MSN 5127 LLC

Delaware

139.

Aircraft MSN 5598 LLC

Delaware

140.

Aircraft MSN 5796 LLC

Delaware

141.

Aircraft MSN 6077 LLC

Delaware

142.

Aircraft MSN 6201 LLC

Delaware

143.

Aircraft MSN 6253 LLC

Delaware

144.

Aircraft MSN 7160 LLC

Delaware

145.

Aircraft MSN 7316 LLC

Delaware

146.

Aircraft MSN 7791 LLC

Delaware

147.

Aircraft MSN 25702-2 LLC

Delaware

148.

Aircraft MSN 27137 LLC

Delaware

149.

Aircraft MSN 28623 LLC

Delaware

150.

Aircraft MSN 29345 LLC

Delaware

151.

Aircraft MSN 29346 LLC

Delaware

152.

Aircraft MSN 29356 LLC

Delaware

153.

Aircraft MSN 29918 LLC

Delaware

154.

Aircraft MSN 29920 LLC

Delaware

155.

Aircraft MSN 30295 LLC

Delaware

156.

Aircraft MSN 30687 LLC

Delaware

157.

Aircraft MSN 30702 LLC

Delaware

158.

Aircraft MSN 30710 LLC

Delaware

159.

Aircraft MSN 32457 LLC

Delaware

160.

Aircraft MSN 32704 LLC

Delaware

161.

Aircraft MSN 32705 LLC

Delaware

162.

Aircraft MSN 33030 LLC

Delaware

163.

Aircraft MSN 33212 LLC

Delaware

164.

Aircraft MSN 33380 LLC

Delaware

165.

Aircraft MSN 33417 LLC

Delaware

166.

Aircraft MSN 34409 LLC

Delaware

167.

Aircraft MSN 35022 LLC

Delaware

Name of Subsidiary

Jurisdiction

168.

Aircraft MSN 35082 LLC

Delaware

169.

Aircraft MSN 35093 LLC

Delaware

170.

Aircraft MSN 35233 LLC

Delaware

171.

Aircraft MSN 35236 LLC

Delaware

172.

Aircraft MSN 35237 LLC

Delaware

173.

Aircraft MSN 35679 LLC

Delaware

174.

Aircraft MSN 35680 LLC

Delaware

175.

Aircraft MSN 36826 LLC

Delaware

176.

Aircraft MSN 36829 LLC

Delaware

177.

Aircraft MSN 36808 LLC

Delaware

178.

Aircraft MSN 36821 LLC

Delaware

179.

Aircraft MSN 37294 LLC

Delaware

180.

Aircraft MSN 37742 LLC

Delaware

181.

Aircraft MSN 37887 LLC

Delaware

182.

Aircraft MSN 38019 LLC

Delaware

183.

Aircraft MSN 38494 LLC

Delaware

184.

Aircraft MSN 38683 LLC

Delaware

185.

Aircraft MSN 38686 LLC

Delaware

186.

Aircraft MSN 40713 LLC

Delaware

187.

Aircraft MSN 41522 LLC

Delaware

188.

Aircraft MSN 19000484 LLC

Delaware

189.

Aircraft MSN 19000575 LLC

Delaware

190.

Aircraft MSN 19000588 LLC

Delaware

191.

Aircraft MSN 19000609

Delaware

192.

Aircraft MSN 19000628

Delaware

193.

ALC B378 33104, LLC

Delaware

194.

ALC B378 34242, LLC

Delaware

195.

Anfield Funding Limited

Bermuda

196.

Blue Coast Aircraft Leasing (France) Sarl

France

197.

Constellation Aircraft Leasing (France) SARL

France

198.

Constitution Aircraft Leasing (Ireland) 3 Limited

Ireland

199.

Constitution Aircraft Leasing (Ireland) 5 Limited

Ireland

200.

Constitution Aircraft Leasing (Ireland) 9 Limited

Ireland

201.

Constitution Aircraft Leasing (Ireland) 10 Limited

Ireland

202.

Constitution Aircraft Leasing (Ireland) 1086 Limited

Ireland

203.

Delphie Aircraft Leasing Limited

Bermuda

204.

Dolphin Leasing (Ireland) Limited

Ireland

205.

Dunvegan Aircraft Leasing (Ireland) Limited

Ireland

206.

Endeavor Aircraft Leasing (Sweden) AB

Sweden

207.

Enterprise Aircraft Leasing (France) SARL

France

208.

Gold Coast Aircraft Leasing (France) Sarl

France

209.

Grayston Aircraft Leasing Limited

Cayman Islands

210.

Haneda Aircraft Leasing (Norway) AS

Norway

211.

Intrepid Aircraft Leasing (France) SARL

France

212.

Jakarta Aircraft Leasing (Ireland) Limited

Ireland

213.

Kale Aircraft Leasing (Ireland) Limited

Ireland

214.

Klaatu Aircraft Leasing (Ireland) Limited

Ireland

215.

Koala Aircraft Leasing (Ireland) Limited

Ireland

216.

Macleod Aircraft Leasing (Labuan) Limited

Labuan

217.

Macstay Aircraft Leasing Limited

Bermuda

218.

Marrow Aircraft Leasing (Ireland) Limited

Ireland

219.

Medan Aircraft Leasing (Ireland) Limited

Ireland

220.

Melbourne Aircraft Leasing (UK) Limited

United Kingdom

221.

Merdeka Aircraft Leasing (Labuan) Limited

Labuan

222.

Momo Aircraft Leasing Limited

Bermuda

223.

Orchard Aviation (A330) Pte. Ltd.

Singapore

224.

Orchard Aviation 41522 (UK) Limited

United Kingdom

Name of Subsidiary

Jurisdiction

225.

Perdana Aircraft Leasing (Labuan) Limited

Labuan

226.

Platypus Aircraft Leasing (Ireland) Limited

Ireland

227.

Salmon Aircraft Leasing (Ireland) Limited

Ireland

228.

Sulaco Aircraft Leasing (Ireland) Limited

Ireland

229.

Tempelhof Aircraft Leasing (Ireland) Limited

Ireland

230.

Thunderbird 1 Leasing Limited

Mauritius

231.

Thunderbird 2 Leasing Limited

Mauritius

232.

Thunderbird 3 Leasing Limited

Mauritius

233.

Thunderbird 4 Leasing Limited

Mauritius

234.

Trojan Aircraft Leasing (France) SARL

France

235.

Zebra Aircraft Leasing Limited

Cayman Islands

236.

Zephyr Aircraft Leasing B.V.

The Netherlands