$307 Find Cheap Flights from Indianapolis to London - Compare and Save

British Airways only allows recognized service dogs to fly in cabins on the flights. However, they do not allow emotional support dogs or other pets into the cabin. Instead, pets are required to travel in the hold. Economy Class flyers with KLM can bring one pet into the cabin in a pet travel bag. The bag should fit underneath the seat in front of you. If traveling on Premium Comfort Class and Business Class, you cannot bring pets into the cabins.

There is a 24-hour cancellation policy at British Airways. You will receive a full refund if you cancel your flight reservation within the first 24 hours. The risk-free cancellation policy applies to all ticket types. Within 24 hours of your purchase, you may cancel your reservation with Air Canada and receive a refund for the cost of your ticket.

Air Canada allows passengers to relax and experience the utmost comfort and convenience. From roomier seats with more space to your own seat that can fully recline. Enjoy the advantages of additional baggage allowance and whiz through security checks and boarding lanes. Eight seats instead of the normal 14 are available in the Luxury First Class cabin of British Airway's 787-9 Dreamliner. The seats also come with larger personal screens and Meridian noise-canceling headphones.

Each passenger on this route releases an average of about 6728 lbs in carbon. British Airways and American fly the most sustainably to London from Indianapolis. They leave the least amount of carbon print on this route. They offset about 32% of their carbon emissions.

Flights from Indianapolis to London usually depart from Indianapolis (IND) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

Four cabin classes are available on flights from Indianapolis to London:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

One-stop flights from Indianapolis to London most commonly connect through:

• Dublin (DUB) - 37% of one-stop connections
• Chicago O'Hare Intl (ORD) - 19% of one-stop connections
• New York John F Kennedy Intl (JFK) - 8% of one-stop connections
• Boston Logan Intl (BOS) - 8% of one-stop connections

Dublin (DUB) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 15% on the Indianapolis to London route. Wednesday is the cheapest departure day at $817 round-trip on average, while Saturday is the most expensive at $952, a difference of $135. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Some of the most popular sights in London are Hyde Park, Buckingham Palace and Trafalgar Square. These are among the most viewed places in London on KAYAK.

Last-minute fares on this route - booked within 2 weeks of departure - run 15% above the route average of $885. Book 8 weeks before departure for the lowest fares.

A nonstop flight from Indianapolis to London takes 0h 00m, covering 3,995 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

One-way fares from Indianapolis to London are currently lower than usual. Average one-way flight prices are about $401, which is 13% below the typical average for this route.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 10h 59m, compared with 11h 07m via Washington, D.C. Dulles Intl (IAD) and 11h 17m via Chicago O'Hare Intl (ORD).

London is 5 hours ahead of Indianapolis (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) — daily rates from around $7:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Near London Gatwick Airport (LGW) — daily rates from around $8:

• GREEN MOTION
• DRIVALIA
• U-Save
• Europcar
• Alamo

Near London City Airport (LCY) — daily rates from around $11:

• GREEN MOTION
• Budget
• Hertz
• Avis
• Sixt

Near London Luton Airport (LTN) — daily rates from around $11:

• GREEN MOTION
• DRIVALIA
• Alamo
• Europcar
• Budget

Near London Stansted Airport (STN) — daily rates from around $10:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• U-Save

Round-trip flights from Indianapolis to London range from $715 to $1,089, with an average of $885 over the past 12 months. Anything below $715 counts as a good deal.