£420 Air India London to Mumbai Return Flights
Looking for London to Mumbai return flights for September or October? TravelUp currently has Air India direct return flights from London to Mumbai for £420, with plenty of September and October 2026 travel dates available.
The deal is for an Economy Basic fare and includes a cabin bag plus a 23kg checked bag, making it worth checking if you’re planning a trip to Mumbai later this year.
Deal highlights:
- ✈️ London to Mumbai return flights
- 🇬🇧 Departing from London
- 🇮🇳 Arriving in Mumbai
- ✈️ Air India
- 💷 £420 return
- 📅 Plenty of September and October 2026 dates
- 🛫 Direct flights
- 💺 Economy Basic
- 🎒 1 small personal item included
- 🧳 1 cabin bag up to 55 × 40 × 23cm included
- 🧳 1 checked bag up to 23kg included
CHECK THE £420 AIR INDIA DEAL AT TRAVELUP
Flight prices and availability can change at any time. Check the final price, dates and fare conditions before booking.

£420 Air India London to Mumbai Flights
If you’re searching for an affordable Air India London to Mumbai return flight, this TravelUp deal could be worth checking.
The £420 fare is available on selected dates in September and October 2026, giving travellers some flexibility when planning their trip.
The flight is particularly interesting for travellers who prefer a direct London to Mumbai flight rather than taking a connecting service through the Middle East or Europe.
Recent flight comparison data shows that September can be one of the cheaper periods for London–Mumbai travel, although fares vary considerably according to dates, airline and availability. Similarly, London to Mumbai flights are available within the price range.
What’s included in the £420 fare?
The advertised Air India Economy Basic fare includes:
Personal item
1 small handbag, laptop bag or backpack that fits underneath the seat.
Cabin baggage
1 cabin bag measuring up to 55 × 40 × 23cm.
Checked baggage
1 checked suitcase with a maximum weight of 23kg.
For travellers visiting family or friends in India, the included 23kg checked baggage allowance is particularly useful because you don’t have to rely solely on hand luggage.
Always check the final fare conditions displayed by TravelUp before payment because airline baggage and fare conditions can change.
London to Mumbai flight dates
TravelUp is currently showing plenty of availability for September and October 2026, although the £420 price may only apply to selected dates.
If your travel dates are flexible, it is worth checking several departure and return combinations before booking.
For example, try searching:
- Early September to late September
- Mid-September to early October
- Late September to mid-October
- Early October to late October
Flexible dates can make a significant difference to long-haul flight prices.
How long is the London to Mumbai flight?
A direct flight from London to Mumbai typically takes around 9 to 10 hours, depending on the exact flight and operating conditions.
The route connects London with Chhatrapati Shivaji Maharaj International Airport (BOM) in Mumbai.
Air India operates direct London–Mumbai services, and current flight comparison information shows direct services on the route.
Why this £420 Mumbai flight deal is worth checking
There are plenty of ways to travel from the UK to Mumbai, including one-stop services through hubs such as Dubai, Doha, Abu Dhabi and Istanbul.
However, connecting flights can add several hours to the journey.
For travellers who prefer a simpler journey, a £420 return Air India direct flight from London to Mumbai could be attractive.
The deal becomes even more interesting because the advertised fare includes:
- A personal item
- A cabin bag
- A 23kg checked bag
That makes the fare worth comparing with cheaper-looking tickets that may have more restrictive baggage allowances.
London to Mumbai: direct or connecting flight?
When searching for flights to Mumbai, you’ll generally see both direct and connecting options.
Direct flights
Pros:
- No airport change
- No connection to worry about
- Around 9–10 hours of flying
- Easier for families and older travellers
- Less risk of missing a connecting flight
Connecting flights
Pros:
- Sometimes cheaper
- More departure options
- More airlines and routes to choose from
Connecting flights can sometimes be cheaper than direct services, but travellers should compare the total journey time and baggage allowance, rather than looking at the ticket price alone.

Which UK airports have flights to Mumbai?
London is the main UK departure point for direct Mumbai flights.
Travellers from other UK cities can also search for Mumbai flights from airports including:
- Manchester
- Birmingham
- Glasgow
- London Heathrow
- London Gatwick
Regional routes will often involve one or more connections.
If you’re travelling from Manchester, Birmingham, Glasgow or elsewhere in the UK, it can also be worth comparing the cost of travelling to London against the price of a regional connecting flight.
When is the best time to fly from London to Mumbai?
September can be a good month to search for lower London–Mumbai fares. Current flight comparison data shows September among the cheaper months on the route.
However, prices can change quickly depending on:
- Departure date
- Return date
- Airline
- Seat availability
- School holidays
- Festivals
- Booking date
If you’re flexible, search several different dates rather than booking the first flight you see.
Is £420 a good price for London to Mumbai?
For travellers specifically looking for a direct Air India return flight, £420 is a price worth checking.
Recent comparison data has shown direct Air India London–Mumbai return fares at higher prices on several September and October dates, although cheaper indirect flights can also be found.
The key advantage of this particular offer is the combination of:
£420 return + Air India + direct flight + 23kg checked baggage.
That combination can make the deal more attractive than comparing the headline price alone.
Where does the flight arrive in Mumbai?
International flights arrive at Chhatrapati Shivaji Maharaj International Airport (BOM).
Mumbai Airport is the main international gateway for travellers visiting the city.
From the airport, passengers can continue their journey by taxi, ride-hailing services, public transport or a pre-arranged hotel transfer.
What documents do UK travellers need for India?
UK passport holders generally need an approved Indian e-Visa before travelling to India.
Before booking and travelling, check the latest Indian visa and entry requirements and make sure your passport meets the required validity conditions.
Travellers should also consider travel insurance covering medical expenses, delays and baggage.
When should you book London to Mumbai flights?
There isn’t one guaranteed booking window that will always produce the cheapest fare.
For a deal such as this, however, waiting too long can be risky because airline seats at the advertised price can sell out.
If your preferred September or October date is showing at £420 return, check the full fare and baggage conditions before booking.
How to book the £420 Air India Mumbai flight
To check the available dates:
- Click the TravelUp booking button below.
- Search for London → Mumbai.
- Select return flights.
- Check September and October 2026 dates.
- Look for Air India direct flights.
- Check the final fare and baggage allowance.
- Complete your booking if the price and dates suit you.
✈️ Check the £420 London to Mumbai deal
CHECK AVAILABILITY AT TRAVELUP
The £420 price is subject to availability and may disappear as seats sell.
Frequently Asked Questions
How much are the Air India London to Mumbai return flights?
The advertised TravelUp deal is £420 return for selected September and October 2026 dates.
Are these London to Mumbai flights direct?
Yes. The deal is for direct Air India flights from London to Mumbai.
Does the £420 fare include checked baggage?
Yes. The advertised fare includes one checked bag up to 23kg.
Is cabin baggage included?
Yes. The deal includes one cabin bag measuring up to 55 × 40 × 23cm.
Is a small handbag or laptop bag included?
Yes. The advertised allowance includes one small handbag, laptop bag or backpack for under-seat storage.
Which airport do Air India flights use in London?
The direct London–Mumbai service is associated with London Heathrow (LHR).
Which airport do flights arrive at in Mumbai?
International flights arrive at Chhatrapati Shivaji Maharaj International Airport (BOM).
Are there cheaper London to Mumbai flights?
Yes. Connecting flights can sometimes be cheaper, and prices change frequently. The £420 deal is particularly relevant for travellers looking for a direct Air India return flight with checked baggage.
When can I travel for £420?
The advertised £420 fare has availability across selected September and October 2026 dates. Availability can change, so check your preferred dates before booking.
Should I book the £420 flight now?
If your dates are flexible and you find the £420 fare with the baggage allowance you need, it’s worth checking the complete booking conditions before the fare changes or sells out.
