Just check coupons out (with price alert and history). What is the best price?
Model Type: Fixed-Wing/Glider/Helicopter, VA 73x39mm, 2.4GHz System: AFHDS 2A / AFDHS, Display: STNTransflective Display, Channel: 6-10 (Default 6), Chargeable: No, RF Range: 2.408-2.475GHz, LCD 128×64 Lattice, Power: 6V DC 1.5AA*4, Low Voltage Warning: < 4.2V, LCD with white backlight, Bandwidth: 500KHz, Size: 174x89x190mm, On-line Update: Yes, Color: Black, Weight: 392g, FCC ID: N4ZFLYSKYI6X, Stick Resolution 4096, Certificate: CE0678, DSC port: PS/2 Port PPM, Antenna Length: 26mm (Dual Antenna), RF Channel: 135, RF Power: < 20dBm, Modulation Type: GFSK
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($71.99): BGRADIORU
2. ($73.59): BGRCParts8
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): FSI6X, TTxBG10, Parts8, BGAFHDS, BGPAYPALSS, BGFI6X, 7d18f7, BGdei6x, 2020CNY, BGVDay10%off, aff7off, bGhOnEy10, BGflysky11, BGSS10%SW, bgshOOp10, BGI6X20, BGI6X3RUS, BGI6X3NE, BGESFKI6X, BGRCRR9, BGCuponation10, BGI6X3ES, BGDAVIS, 13f142, BGI6XUSA, BGi6XJuly, BG945762, BGradio9, BG70e5fc, BGGAL8, Tabby20, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Flysky i6X RC Transmitter [EU/CZ] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for Flysky i6X RC Transmitter? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).