Aliexpress
Click here… to search for iFlight iH2 HD 120mm 4S Drone on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (310.98 USD): BGMATT7
Coupon (325.39 USD): 7bcdf9
(CouponsFromChina.com tip: coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGIH2IF, bGhOnEy10, bgshOOp10, BGWKIH2HD, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGiH2HL, BGAFF10OFF, BG10RACING, BGCuponation10, BGDAVIS
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for iFlight iH2 HD 120mm 4S Drone.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).