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Islip (ISP) to London (LHR)

Good deals for this route are priced below $740.

The cheapest round trip flights from Islip (ISP) to London (LHR) for any dates in the next six months were priced around $740 (with stops)

See what people are shopping right now from Islip (ISP) to London (LHR)

Fly out on a Friday, return on a Wednesday, save up to $170.

The best day to depart a roundtrip ticket from Islip to London is Friday, saving up to $110. The best day to return is Wednesday, saving up to $60.

Demand is going down, Prices are flat. Hunt for deals.

The average demand fell -26.9% to 19 flight searches per day compared to 26 daily searches during the previous week. Last week's weighted average round-trip ticket price from Islip to London increased by 5.7% to $740 as compared to $700 the prior week.

Iberia Airlines, Finnair, and British Airways have the lowest fares

The most popular deals on airlines that fly with stops to London are:

Iberia Airlines $740 Find
Finnair $740 Find
British Airways $870 Find
American Airlines $870 Find

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Data and Methodology

This report is based on 2,570 round-trip flight prices from crowd-sourced airfare searches made between October 13, 2017 and October 20, 2017. We’ve included all trips that were shops less than 6 months before the departure that include a Saturday night stay.

Our data is drawn from Hopper’s combined feed of Global Distribution System (GDS) data sources which includes about 10 million flight price queries per day, containing about one billion individual trips per day. Demand is represented as the number of queries not actual ticket purchases, and is calibrated across all GDS sources for each market. Lowest fare, or deal fare, is represented by the 10th percentile prices. For example if the 10th percentile price is $800 dollars it means that only 10% of trips are priced at or below this price.

Prices and popularity by date are determined by aggregating all flights that depart before and return after the date in question. Prices by date are 10th percentile prices of such flights. Popularity by date factors out the overall advance purchase distribution, as search rates naturally increase close to departure, in order to highlight long term patterns.

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