
If you’re searching for a cheap air ticket: Sylhet to Cox’s Bazar, Dhaka, or beyond, you’re not alone. Hundreds of travellers from the Sylhet region book domestic flights every week, and the difference between a smart booking and an expensive one often comes down to timing, airline choice, and how you book.
This guide breaks down everything you need to know before you buy.
Popular Domestic Routes from Sylhet Osmani Airport
Sylhet’s Osmani International Airport (ZYL) is the main departure point for domestic flights across Bangladesh. Here are the three most popular routes.
Cheap Air Ticket Sylhet to Cox’s Bazar: Route, Price & Airlines
The Sylhet–Cox’s Bazar (ZYL–CXB) route is one of the most in-demand domestic flights in Bangladesh, especially during the October–February tourist season. US-Bangla Airlines operates this route with one-way fares starting around BDT 3,500–5,500 in off-peak months. Biman Bangladesh also covers this route, though less frequently.
Flight time is approximately 55–65 minutes, making it far quicker than the road journey.
Sylhet to Dhaka
The Sylhet–Dhaka (ZYL–DAC) route runs multiple times daily. Sylhet to Dhaka air ticket prices typically range from BDT 2,800 to BDT 6,500, depending on the season and how early you book. US-Bangla, Biman Bangladesh, and Novoair all operate on this corridor, giving travellers solid options.
Sylhet to Chittagong
Less frequent than the Dhaka route, Sylhet–Chittagong flights offer a useful alternative to long road travel. Fares generally sit between BDT 3,200–5,800. Always check seat availability early, as this route fills quickly around Eid and national holidays.
Cheapest Months and Days to Fly

Timing is everything with domestic flight booking in Bangladesh.
Cheapest months: May, June, and September see the lowest fares on most Sylhet routes. Tourist demand drops in these months, which pushes prices down noticeably, sometimes by 30–40% compared to peak season.
Most expensive months: October through January (Cox’s Bazar season), and the weeks around Eid-ul-Fitr and Eid-ul-Adha. Book at least 4–6 weeks ahead during these periods.
Cheapest days to fly: Mid-week departures — Tuesday, Wednesday, and Thursday — consistently offer lower fares than Friday–Sunday flights. If you have flexibility, shifting your departure by even one or two days can save BDT 800–1,500 per ticket.
Best booking window: For the cheapest air ticket from Sylhet, aim to book 3–5 weeks in advance during normal periods. Last-minute bookings on popular routes almost always cost more.
Biman Bangladesh vs US-Bangla: Which Is Better?

Both carriers serve Sylhet’s domestic routes, but they suit different types of travellers.
US-Bangla Airlines operates more frequent flights, has a wider domestic network, and generally offers more competitive fares for routes like Sylhet–Cox’s Bazar. Their on-time performance has improved significantly in recent years.
Biman Bangladesh Airlines is the national carrier and often preferred by travellers who want government-backed reliability. Fares can be slightly higher, but Biman flights are widely available through travel agents and the Biman official website.
For budget-focused travellers on the Sylhet–Cox’s Bazar or Sylhet–Dhaka route, US-Bangla often wins on price and frequency. For corporate or group bookings, Biman’s structured ticketing through GDS systems can offer advantages.
How to Book Through a Travel Agency vs. Online
Both options work, but they’re not equal for every situation.
Booking online through airline websites or third-party platforms like ShareTrip is fast and straightforward for simple one-way or round-trip tickets. You can compare prices quickly and pay by card or mobile banking.
Booking through a travel agency makes more sense when:
- You need group tickets for 5 or more passengers
- You’re combining a flight with a hotel booking or a tour package
- You want fare-hold options or flexible rebooking terms
- You’re an NGO, company, or organisation requiring invoiced travel documentation
Travel agents with GDS (Global Distribution System) access, like Ruji Overseas, can sometimes access consolidated fares and corporate rates not visible on public booking platforms. For complex or high-volume travel, the savings and added support often outweigh the convenience of booking alone.
Book Your Ticket with Ruji Overseas
At Ruji Overseas, we handle domestic air ticketing across all major routes from Sylhet, including Cox’s Bazar, Dhaka, and Chittagong, through all four GDS reservation systems.
Whether you need a single ticket or group travel for your organisation, our team at Uposhor Road, Sylhet is available Saturday to Thursday, 10 am–4:30 pm.
Explore our air ticketing and travel services or go straight to our flight booking page to get started. You can also call us directly at 01712-328632 or email rujioverseas@gmail.com.
FAQ
Q. What is the cheapest month to fly from Sylhet to Cox’s Bazar?
May, June, and September are typically the cheapest months. Fares on this route can drop 30–40% during these off-peak periods compared to the October–February tourist season.
Q. Which airlines fly from Sylhet to Cox’s Bazar directly?
US-Bangla Airlines and Biman Bangladesh Airlines both operate on the Sylhet (ZYL) to Cox’s Bazar (CXB) route. US-Bangla tends to offer more frequent departures.
Q. How do I book a domestic air ticket in Bangladesh?
You can book directly through airline websites, third-party platforms like ShareTrip or GoZayaan, or through a licensed travel agency. Travel agencies with GDS access can offer group rates and invoice-based booking for organisations.
Q. Is it cheaper to book through a travel agency or online?
For individual bookings, online platforms are often convenient and competitive. For group travel, corporate tickets, or bundled packages (flight + hotel), a travel agency often provides better rates and additional support.