Boeing 737-900ER · 91MER(W) MSN 40070

Registration N903SY · Sun Country Airlines

In service

Identity

TypeBoeing 737-900ER

Variant91MER(W)

FamilyB737NG

Series—

Line Number5395

Test Reg—

Operators

OperatorSun Country Airlines

Timeline

First Flight

23 Apr 2015

Delivery

20 May 2015

Age

11.5 yrs

Last Updated

29 Oct 2026

History

Boeing 737-91MER(W), serial number 40070, line number 5395, first flight 23 Apr 2015. Delivered to Oman Air on 20 May 2015, registered A4O-BK. Operated by Sun Country Airlines on 13 Dec 2025 as N903SY. Current status: in service.

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