Cheap Flights from London to Kolkata from $370

Frequently Asked Questions

• What are the cheapest flights from London to Kolkata (LON-CCU)?

  Based on Trip.com data, Air India offers one-way fares as low as $370 on Cheapest nonstop routes (e.g. LHR to CCU on Fri, Sep 25), while IndiGo offers Cheapest nonstop round-trips from $639 departing on Sun, Sep 13 and returning on Wed, Sep 16.

• Which airlines offer direct flights from London to Kolkata?

  At the moment, you can catch a nonstop flight from London to Kolkata with the following airlines, including: IndiGo Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from London to Kolkata?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Kolkata is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from London to Kolkata?

  To find best deals on flights from London to Kolkata, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Sep 25, with one-way flights priced at just $370.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air India.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Kolkata travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from London (LON) to Kolkata (CCU) the cheapest?

  The cheapest months to fly from London to Kolkata is August, when demand for travel is lower.

• Which upcoming date is cheapest to fly from London to Kolkata on?

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from London to Kolkata on September 14, 2026 with Air India, with prices starting at $603.

• Which airports can I fly into Kolkata from London?

  You can arrive at any of the following airports in Kolkata: Netaji Subhash Chandra Bose International Airport (CCU). Flights from Heathrow Airport to Netaji Subhash Chandra Bose International Airport (LHR-CCU) are by far the most popular option for this route.

• Is there any time difference between London and Kolkata?

  The time difference between Kolkata and London is 5h.

• How do I change or cancel my ticket from London to Kolkata?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from London to Kolkata?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from London to Kolkata is $814. Fares vary by travel date, airline and availability.

• How do I book flights from London to Kolkata on Trip.com?

  Enter London and Kolkata, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the London to Kolkata route?

  IndiGo, Ryanair and Wizz Air UKare the most popular budget airlines flying from London to Kolkata. Check baggage, seat and payment fees before comparing the final price.