A number of Myanmar airlines such as Golden Myanmar Airlines, Mann Yadanarpon Airlines, Asian Wings Airways, FMI Air and Myanmar National Airlines serve daily flights from Yangon to Bagan and vice versa. Flight time is about 1h20m for a direct flight and 1h50m for a non-direct one (via Heho airport and/or Mandalay airport). Yangon terminal is the Yangon International Airport, 15 km from the Yangon downtown (30 minutes driving in normal traffic and 2 hours driving in rush hours, and Bagan terminal is Nyaung U Airport, 7 km far from New Bagan (15-20 minutes driving).
The best way to booking a Yangon to Bagan flight for your Myanmar travel is via local travel agents, which are also PSAs (Passenger Sales Agent) of the airlines. There are a great number of the agents in Yangon such as Exotic Myanmar Travels & Tours, Unique Myanmar Travels & Tours, and Myanmar Golden Image Travels & Tours.
Besides, you can ask your hotel in Yangon for booking the flight ticket. Note that a small fee may be a surcharge for this service.
You can book online via the websites of the airlines. However, some of the websites do not update the information about flight schedule and price as well as there are a lot of errors occurring during the booking process. Some of the airlines which have quite good online booking service are Myanmar National Airlines, Mann Yadanarpon Airlines, Asian Wings Airways (they operates codeshare flights with Air Bagan) and Air KBZ.
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Here we list the ticket price (2017) of several airlines. Note that the price is quoted for economy class, non-promotion and one-way trip in low season (May-October). The price is just for reference; please contact the airlines or agents to have updated information.
Air KBZ
Saver: US $108
Flexible: US $118
Asian Wings Airways: US $118
FMI Air
Saver: US $100
Plus: US $110
Flexible: US $120
Golden Myanmar Airlines: US $95
Mann Yadanarpon Airlines: US $104
Yangon Airways: US $95
Myanmar National Airlines
Saver: $96
Flexible: $106
In high season (November to February), the Yangon to Bagan flight price is normally $10 higher than that in low season. The Air Bagan is probably the best airline for the route; however, you can choose from Air Mandalay, Mann Yatanarpon Airlines and Myanmar Airways for your Burma tours.