Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – FlySky FS-ST8 2.4GHz 8CH ANT RC Transmitter with FS-SR8 Standard [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (84.63 USD): BGAUGUST8
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BGRADIORU, BGToys8, BGSaleFeb8, BGSaleAD, BGMatt2022, BGMARCHSALE, BGToySale, BG589b2e
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – FlySky FS-ST8 2.4GHz 8CH ANT RC Transmitter with FS-SR8 Standard [EU] (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for FlySky FS-ST8 2.4GHz 8CH ANT RC Transmitter with FS-SR8.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).