Don Muang airport, as it's known locally, began life in the 1920s as a military airfield. Civil flights now share the military zone, which comes complete with a golf course between landing strips. The airport has been almost continually upgraded in the decades since and now hosts two large, modern international passenger terminals and a domestic terminal within the large compound running alongside on of Bangkok's busiest thoroughfares, Vibhavadi Rangsit Road, a main artery to the north and north-east of Thailand. Be sure to keep your eye on bags and valuables at all times. Upper floors of the international terminals serve departing passengers with arrivals channeled onto the ground floor.
Business travellers are well catered to within the facility.
Restaurants, shops and services, including sleeping berths, internet and email access, phone cards and city maps, are available with signage in English and Thai to incoming passengers on both sides of immigration. But if you're travelling with small children, you'll find little in the way of support facilities. There are no nappy change areas, nursing lounges or play areas. Baggage trolleys are free at the airport but can not be taken across the immigration barrier. Porter services and electric cars are available for those whose physical condition makes them necessary.