Flight ticket prices are determined by sophisticated revenue management systems that adjust prices thousands of times per day based on demand, booking patterns, competitor pricing, seat availability and dozens of other factors. Understanding the basics of this system lets you work with it — rather than against it — to find the best fares.
Airlines divide seats on each flight into multiple fare buckets — each with a different price, different rules, and different restrictions. A typical economy cabin might have 8–12 different fare buckets, from the cheapest non-refundable basic economy to the most expensive flexible fully-refundable fare.
When you see that a ticket has "gone up in price" since yesterday, what actually happened is that the cheapest fare bucket sold out — and the next bucket is more expensive. The seat is the same. The price is different because the bucket changed.
Online travel agencies (OTAs) like Google Flights, Skyscanner, and Kayak aggregate prices from multiple sources — the airline directly, global distribution systems (GDS), and sometimes consolidator fares. The differences you see between sites are real:
The "best time to book" question has been studied extensively by flight data analysts. The key findings for international routes:
| Route Type | Sweet Spot Booking Window | Worst Time to Book |
|---|---|---|
| Domestic (within Bangladesh) | 2–5 weeks before | Same day or next day |
| Short-haul international (South Asia) | 4–8 weeks before | Last 2 weeks |
| Long-haul (Europe, USA, Australia) | 2–5 months before | Last month |
| Holiday peak periods | 3–6 months before | Any time after the window |
The Tuesday/Wednesday myth: Popular advice suggests booking on Tuesday or Wednesday when airlines release sale fares. This was truer 10 years ago — today's algorithmic pricing makes this less consistently reliable. However, mid-week is still slightly better than weekend booking on average.
Set fare alerts: Google Flights, Hopper and Skyscanner all allow you to set alerts for specific routes. When the price drops to your target, you get an email. This is more reliable than trying to time the market manually.
Most passengers do not realise that "economy" is not a single product — it is a collection of sub-products with meaningfully different rules:
Basic Economy / Lite Fare:
Standard Economy:
Flexible / Full-Y Economy:
Which to choose: For flexible plans or business travel — Flexible Economy. For leisure travel with fixed dates — Standard Economy. Basic Economy only if you are absolutely certain of your travel dates and carry minimal luggage.
| Feature | Business Class | First Class |
|---|---|---|
| Seat recline | Flat-bed on long-haul | Suite/private space |
| Meals | Multi-course restaurant quality | Chef-prepared, personalised |
| Lounge access | Business lounge | Premium/First lounge |
| Baggage | 2–3 checked bags | Generous allowance |
| Price premium | 3–6x Economy | 6–15x Economy |
| Worth it for | Long-haul overnight flights | Ultra-premium travellers |
For short or medium flights (under 4 hours), Business Class offers significantly less value than on long-haul routes where the flat-bed and premium meal make a meaningful difference to arrival condition.
The advertised base fare is rarely the final price. These are the fees most commonly added after you click "book":
How to avoid surprises: Use Google Flights' "total price" filter which includes all mandatory fees. Compare the final checkout price — not the search result price — before committing.
For Bangladesh-based travellers, Biman Bangladesh Airlines operates domestic routes (Dhaka–Chittagong, Dhaka–Cox's Bazar, Dhaka–Sylhet, Dhaka–Jessore) and international routes across South and Southeast Asia, the Middle East, Europe and North America.
Booking Biman tickets online:
Biman fare classes: Y (full economy), M, B, H, K, L, V (progressive discounts with increasing restrictions)
For domestic routes, the Biman website frequently offers promotional fares for advance bookings — particularly for Cox's Bazar routes during off-peak periods. Set a fare alert via your preferred OTA and check the Biman site directly when an alert triggers.