Since you’re in Qatar (Doha), the best budget options to get to Dubai are the low-cost carriers that operate direct or very short flights from Hamad International (DOH) to Dubai-area airports. The top choices and what to expect:

1. flydubai — direct to Dubai International (DXB)

• flydubai is the main low-cost carrier operating nonstop DOH–DXB with many daily flights and competitive fares. Flights arrive at DXB (Terminal 2 for flydubai). (flydubai.com)

2. Air Arabia — direct to Sharjah (SHJ), convenient for Dubai

• Air Arabia flies nonstop from Doha to Sharjah (SHJ). Sharjah is a short ground transfer from many parts of Dubai (taxi or bus), and Air Arabia often offers very low fares. If you’re flexible about arriving airport, this is frequently the cheapest option. (wego.qa)

3. Other options and aggregator results

• Flight search sites show additional low-fare options (including occasional sales) and sometimes list other carriers or one-stop itineraries; use comparison sites to spot flash sales and the cheapest dates. wego/Trip/FlightsFrom aggregators are useful for price checks. (dz.wego.com)

Practical tips to get the cheapest overall Trip

• Compare total price (fare + checked baggage + seat selection + airport taxes). Low-cost base fares often exclude baggage and seat assignments.
• If price is the priority, check Air Arabia to SHJ as well as flydubai to DXB — sometimes Air Arabia is considerably cheaper even after a short taxi to Dubai.
• Book mid-week and avoid peak travel dates; sign up for airline newsletters and fare alerts to catch sales.
• Check arrival airport: flydubai → DXB (shorter onward transfers inside Dubai). Air Arabia → SHJ (extra ground transfer time/cost).
• Verify baggage allowance and transfer options before booking — baggage fees can erase the low-fare advantage.

If you want, I can:

• Check current fares for a specific travel date range and compare total costs (including baggage) between flydubai and Air Arabia, or
• Show how long the ground transfer from Sharjah to central Dubai typically takes and approximate taxi cost.

Which do you prefer—just cheapest fare, lowest door-to-door time, or best balance of price and convenience?