Scroll through the results for cheap flights to Chiang Rai in Thailand. To get the best deal, we'd advise booking in advance, particularly if you want to fly with a specific airline. The most popular airlines are Austrian Airlines, Thai Airways International & Turkish Airlines, but that doesn't necessarily mean they're the cheapest. Check your dates and see.
If these flights are too expensive, try searching for a different time of year. It's likely that prices for both flights and accommodation in Chiang Rai will be higher during April. Meanwhile, July is nearly always the cheapest time to fly. So if your dates are flexible, consider looking at different times of year.
Chiang Rai receives 42 direct and indirect flights every week, but the cheapest airline is normally Turkish Airlines. So, if the flights to Chiang Rai don't work for you, you could always try searching for flights to other airports in Thailand.
You can also broaden your search by looking at more than one departure airport. Have a look around – you might be able to save by flying from a different airport or city.