Hi Gaurav!
To find the best deals on flight tickets, here are some sites you can check out:
1. Cheapflights
2. SkyScanner
3. Makemytrip
4. kayak.co.in
Hotels you can check out in
Phuket:
1. Lub D Phuket Patong
2. Aspery Hotel
3. Patong Mansion Hotel
Krabi:
1. Sea Seeker Krabi Resort
2. Aonang Miti Resort
3. Ao Nang Phu Pi Maan Resort & Spa
You can also check out these trips for superb deals on airfare and hotels.
Happy Travelling!
Hi Gaurav,
For my visit to Krabi, I had used Skyscanner for air tickets and Agoda for hotel booking. I got a very good deal. We had stayed at Golden beach resort right on Ao Nang beach in Krabi.