Air Canada's Signature Class offers lie-flat seats and gourmet meals, perfect for long-haul flights.
Air Canada provides complimentary meals for all classes on international flights, enhancing travel experience.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | Gurufare 3 stars |
Round-trip from | $591 (Delta) |
One-way from | $224 (Cheapflightsfares) |
Popular in | June |
Cheapest in | October |
Average price | $727 |
Fly from
Fly to
Route
Depart
Return
Price
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Wed 11/12
5:27 pm-9:00 am
1 stop10h 33m
London Heathrow
Wed 11/19
8:55 am-4:05 pm
1 stop12h 10m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Tue 12/9
4:46 pm-8:45 am
1 stop10h 59m
London Heathrow
Thu 12/18
3:50 pm-12:26 am
1 stop13h 36m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Wed 11/12
6:09 pm-10:15 am
1 stop11h 06m
London Heathrow
Wed 11/19
3:50 pm-12:26 am
1 stop13h 36m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Thu 2/19
1:48 pm-4:00 pm
2 stops21h 12m
London Heathrow
Tue 2/24
9:05 pm-9:00 pm
3 stops28h 55m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Wed 12/3
11:33 am-6:25 am
1 stop13h 52m
London Heathrow
Sun 12/7
6:30 am-7:04 pm
2 stops17h 34m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Wed 12/3
11:33 am-7:05 am
2 stops14h 32m
London Heathrow
Mon 12/8
11:45 am-9:23 pm
2 stops14h 38m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Wed 12/10
2:19 pm-10:15 am
2 stops14h 56m
London Heathrow
Sun 12/14
6:30 am-7:04 pm
2 stops17h 34m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Thu 2/26
4:15 pm-5:40 pm
2 stops20h 25m
London Heathrow
Fri 3/6
6:40 am-9:06 pm
2 stops19h 26m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Tue 11/25
9:28 am-5:55 am
1 stop15h 27m
London Heathrow
Tue 12/2
11:05 am-5:44 pm
2 stops35h 39m
IndianapolisLondon
IND - LHR
INDLHR
Indianapolis
Sat 1/17
12:52 pm-9:20 am
2 stops15h 28m
London Heathrow
Wed 1/21
6:40 am-9:00 pm
3 stops19h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Indianapolis to London Heathrow Airport, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, October is the cheapest month in which you can book a flight from Indianapolis to London Heathrow Airport (average of $491). Flying from Indianapolis to London Heathrow Airport in June is currently the most expensive (average of $887). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from Indianapolis to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 13% versus a flight in the evening.
Travelers seeking maximum savings on their Indianapolis to London Heathrow Airport flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Washington, D.C. (IAD) – chosen by Cheapflights users on 54% of 1-stop itineraries from Indianapolis to London Heathrow Airport on Cheapflights.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 10h 17m.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 10h 17m.
Flights via Dublin (DUB) offer the fastest connection on this route, with an average layover time of 1h 33m.
Comfort
Boarding
Crew
Food
Overall
Entertainment
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Overall
Entertainment
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Overall
Entertainment
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Overall
Entertainment
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Overall
Entertainment
Reviews
Sebrena,Oct 2025
IAH - RSW
Comfort
Boarding
Crew
Food
Overall
Entertainment
Reviews
Sebrena,Oct 2025
IAH - RSW
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$531 | Average$842 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$531 | Average$884 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$540 | Average$787 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$550 | Average$883 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$555 | Average$869 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$622 | Average$936 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$680 | Average$966 | FlexibilityNo cancel fee | On-time69% |