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Cheap flights from Indianapolis to London from $225

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indianapolis to London departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Indianapolis to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:09 am - 9:00 amIND-LHR
17h 51m1 stop
Delta Logo
6:20 am - 5:23 pmLHR-IND
16h 03m2 stops
$590Delta
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Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
2:19 pm - 7:50 amIND-LHR
12h 31m1 stop
Multiple Airlines Logo
1:05 pm - 9:03 pmLHR-IND
12h 58m1 stop
$597Multiple Airlines
Find Deal
Tue, Dec 9 - Thu, Dec 18
Scandinavian Airlines Logo
6:45 am - 9:20 amIND-LHR
21h 35m2 stops
Scandinavian Airlines Logo
6:40 am - 9:10 pmLHR-IND
19h 30m2 stops
$599Scandinavian Airlines
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Thu, Feb 26 - Fri, Mar 6
Scandinavian Airlines Logo
11:33 am - 9:40 pmIND-LHR
29h 07m2 stops
Scandinavian Airlines Logo
7:50 pm - 9:00 pmLHR-IND
29h 10m3 stops
$601Scandinavian Airlines
Find Deal
Tue, Mar 3 - Tue, Mar 24
Aer Lingus Logo
8:00 pm - 1:25 pmIND-LHR
12h 25m1 stop
Aer Lingus Logo
8:50 am - 6:30 pmLHR-IND
14h 40m1 stop
$603Aer Lingus
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Fri, Dec 12 - Mon, Dec 15
Multiple Airlines Logo
3:29 pm - 7:50 amIND-LHR
11h 21m1 stop
Multiple Airlines Logo
1:05 pm - 9:09 pmLHR-IND
13h 04m1 stop
$605Multiple Airlines
Find Deal
Wed, Feb 25 - Wed, Mar 4
Scandinavian Airlines Logo
12:29 pm - 6:30 pmIND-LHR
25h 01m2 stops
Scandinavian Airlines Logo
9:05 pm - 9:10 pmLHR-IND
29h 05m3 stops
$606Scandinavian Airlines
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Wed, Feb 25 - Wed, Mar 4
SWISS Logo
4:30 pm - 12:55 pmIND-LCY
15h 25m2 stops
SWISS Logo
9:15 am - 9:59 pmLCY-IND
17h 44m2 stops
$701SWISS
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Mon, Dec 1 - Mon, Dec 8
Lufthansa Logo
6:12 pm - 6:35 pmIND-LCY
19h 23m2 stops
Lufthansa Logo
9:15 am - 8:22 pmLCY-IND
16h 07m2 stops
$752Lufthansa
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Wed, Apr 22 - Tue, May 5
Lufthansa Logo
6:12 pm - 6:35 pmIND-LCY
19h 23m2 stops
Lufthansa Logo
9:15 am - 8:22 pmLCY-IND
16h 07m2 stops
$773Lufthansa
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Sun, Apr 19 - Fri, May 29

SWISS flights from Indianapolis to London

Our best SWISS deals on Indianapolis to London flight tickets
SWISS
Dec 11
IND2:15 pmIndianapolis
16h 00m
1 stop
LHR11:15 amLondon Heathrow
Dec 16
LHR9:00 amLondon Heathrow
17h 59m
2 stops
IND9:59 pmIndianapolis
$636
Find similar
SWISS
Dec 1
IND4:30 pmIndianapolis
15h 25m
2 stops
LCY12:55 pmLondon City
Dec 8
LCY9:15 amLondon City
17h 44m
2 stops
IND9:59 pmIndianapolis
$701
Find similar
SWISS
Nov 26
IND4:30 pmIndianapolis
20h 20m
2 stops
LGW5:50 pmLondon Gatwick
Dec 2
LGW6:40 pmLondon Gatwick
32h 19m
2 stops
IND9:59 pmIndianapolis
$861
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United Airlines flights from Indianapolis to London

Our best United Airlines deals on Indianapolis to London flight tickets
United Airlines
Dec 2
IND12:10 pmIndianapolis
14h 00m
2 stops
LHR7:10 amLondon Heathrow
Dec 9
LHR6:35 amLondon Heathrow
16h 09m
2 stops
IND5:44 pmIndianapolis
$617
Find similar
United Airlines
Dec 3
IND2:15 pmIndianapolis
10h 40m
1 stop
LHR5:55 amLondon Heathrow
Dec 12
LHR9:00 amLondon Heathrow
16h 00m
2 stops
IND8:00 pmIndianapolis
$618
Find similar
United Airlines
Jan 9
IND12:25 pmIndianapolis
14h 30m
1 stop
LHR7:55 amLondon Heathrow
Jan 25
LHR11:10 amLondon Heathrow
16h 04m
2 stops
IND10:14 pmIndianapolis
$626
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momondo Fare Finder

 
Customize your flight search to find flights from Indianapolis to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Indianapolis to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Tue 12/2

10:09 am-9:00 am

1 stop17h 51m

London Heathrow

Tue 12/9

6:20 am-5:23 pm

2 stops16h 03m

$590

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Tue 12/9

2:19 pm-7:50 am

1 stop12h 31m

London Heathrow

Thu 12/18

1:05 pm-9:03 pm

1 stop12h 58m

$597

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Thu 2/26

6:45 am-9:20 am

2 stops21h 35m

London Heathrow

Fri 3/6

6:40 am-9:10 pm

2 stops19h 30m

$599

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Tue 3/3

11:33 am-9:40 pm

2 stops29h 07m

London Heathrow

Tue 3/24

7:50 pm-9:00 pm

3 stops29h 10m

$601

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Fri 12/12

8:00 pm-1:25 pm

1 stop12h 25m

London Heathrow

Mon 12/15

8:50 am-6:30 pm

1 stop14h 40m

$603

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Wed 2/25

3:29 pm-7:50 am

1 stop11h 21m

London Heathrow

Wed 3/4

1:05 pm-9:09 pm

1 stop13h 04m

$605

IndianapolisLondon

IND - LHR

INDLHR

Indianapolis

Wed 2/25

12:29 pm-6:30 pm

2 stops25h 01m

London Heathrow

Wed 3/4

9:05 pm-9:10 pm

3 stops29h 05m

$606

IndianapolisLondon

IND - LCY

INDLCY

Indianapolis

Mon 12/1

4:30 pm-12:55 pm

2 stops15h 25m

London City

Mon 12/8

9:15 am-9:59 pm

2 stops17h 44m

$701

IndianapolisLondon

IND - LCY

INDLCY

Indianapolis

Wed 4/22

6:12 pm-6:35 pm

2 stops19h 23m

London City

Tue 5/5

9:15 am-8:22 pm

2 stops16h 07m

$752

IndianapolisLondon

IND - LCY

INDLCY

Indianapolis

Sun 4/19

6:12 pm-6:35 pm

2 stops19h 23m

London City

Fri 5/29

9:15 am-8:22 pm

2 stops16h 07m

$773

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Indianapolis to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Indianapolis is in October. Flight prices, which tend to average around $692, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Indianapolis averaging around $740.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Indianapolis to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $938. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,010. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Indianapolis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $882 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $1,018. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Indianapolis when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $862 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Indianapolis for as low as $743 on momondo.

Can stopping save me money on Indianapolis to London flights?

You could potentially save up to 43% on your flight if you consider stops on a Indianapolis to London flight.

How have Indianapolis to London flight prices changed over time?

As of November 2025, prices for Indianapolis to London flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Indianapolis to London

Are you open to changing your travel dates? Check out the ideal times to fly from Indianapolis to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Indianapolis to London (IND to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Indianapolis to London

Direct flights

None
There are no direct flights from Indianapolis to London. There are no popular flight routes from Indianapolis to London.
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  • How far is Indianapolis to London by plane?

    The straight-line distance from Indianapolis to London is 3986.9 mi. A reasonable flight in good conditions will take 10h 00m.

  • When did momondo last update prices for flights from Indianapolis Airport to London?

    Prices for flights from Indianapolis Airport to London refresh daily.

  • How many operators does momondo search for flights from Indianapolis Airport to London?

  • How old do you have to be to fly from Indianapolis Airport to London?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Indianapolis Airport to London.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Indianapolis to London?

Best airlines flying from Indianapolis to London

Compare and see reviews for airlines that fly from Indianapolis to London with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom $531Free CancellationRating
7.5
673 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $531Free CancellationRating
7.9
8,007 reviews
Search Delta flights
IberiaPriceFrom $540Free CancellationRating
7.0
3,012 reviews
Search Iberia flights
Aer LingusPriceFrom $550Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $555Free CancellationRating
6.7
7,521 reviews
Search British Airways flights
American AirlinesPriceFrom $622Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $680Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Wembley
Folkestone
Romford
Ilford
Cobham
Stansted
Harrow
Watford

Why use momondo?

Why should I use momondo to find a flight deal from Indianapolis to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Indianapolis to London for you.

Can I find flights from Indianapolis to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Indianapolis with this policy.

How can momondo help me find flights from Indianapolis to London?

momondo provides multiple filters to help you find the best flight to London from Indianapolis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Indianapolis to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Indianapolis to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport