To transfer Contacts List directly from iPhone to a flash drive is not possible. However, you can first save the contacts list in your PC or Mac and then transfer to a flash drive. To transfer contacts from iPhone to PC Wirelessly: Step 1: Go to iPhone Settings > [your name] > iCloud, and turn on Contacts. Step 2: Open the Safari browser on your computer and type iCloud.com. Sign in with the Apple ID and password. Step 3: Find Contacts from available options and choose the items you want to copy from iPhone to PC. Note:* Use Shift/Ctrl for bulk selection or click the gear icon > Select All to check all items at once. Step 4: Click the Gear Icon and tap Export vCard. The Safari browser will start downloading contacts from iCloud to your PC. Once the process ends, your iPhone contacts will be copied to your PC.