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Find the Cheapest Air Tickets for Flights Between September 15 and 20

Siddhi Jain | September 15, 2026 11:15 AM CST

If you are planning to travel by air this week—specifically between September 15 and 20—you can find information here about the cheapest flight tickets available. We have compared rates for various flights.

It is always advisable to book tickets in advance when planning air travel. Booking late often results in higher costs, which can disrupt your budget. However, if you need to travel on short notice (within the next 7 days) and are looking for affordable tickets, this information will help. Below is a comprehensive list comparing flight ticket prices for the week. The details focus on tickets for some of the country's busiest air routes.

Compare affordable flights, timings, and ticket prices here:

Route	Flight	Ticket Price	Time	Alternative Flight	Ticket Price	Time	Day
Delhi–Mumbai	IndiGo	₹6,090	6:30 PM–10:25 PM	Air India Express	₹6,529	11:25 PM–1:50 AM (Next Day)	Friday
Delhi–Hyderabad	Air India Express	₹7,352	12:20 PM–8:45 PM	IndiGo	₹8,199	6:10 PM–11:00 PM	Thursday
Delhi–Pune	IndiGo	₹6,660	6:10 AM–1:20 PM	SpiceJet	₹6,899	4:55 PM–7:25 PM	Wednesday
Delhi–Kolkata	SpiceJet	₹6,616	8:10 PM–10:30 PM	IndiGo	₹7,368	4:20 PM–9:05 PM	Saturday
Bengaluru–Kolkata	IndiGo	₹6,050	10:20 PM–1:00 AM (Next Day)	Akasa Air	₹6,167	6:15 AM–8:50 AM	Sunday
Bengaluru–Delhi	SpiceJet	₹8,170	8:20 AM–12:55 PM	Air India Express	₹8,563	2:40 PM–5:30 PM	Friday

Who is offering deals?

IndiGo is running a "Low Fare Calendar" offer across several routes. Additionally, Air India and Air India Express are offering discounts on select flights via promo codes, while SpiceJet’s flash sale features lower fares on specific routes.

How to book air tickets?

To book a flight ticket, visit the airline's official website and select either "one-way" or "round-trip." Enter your travel date and destination, followed by your ID details. Finally, complete the payment to confirm your booking.