Cheap flights from New Hampshire to London from $285

The cheapest day to depart from New Hampshire to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $701. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $727. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from New Hampshire in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $613 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $723. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

You are more likely to see cheaper flights to London from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $667 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from New Hampshire for as low as $598 on momondo.

You could potentially save up to 39% on your flight if you consider stops on a New Hampshire to London flight.

As of June 2026, there are 231 flights per week flying from New Hampshire to London. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.

If you’re flying from a popular airport in New Hampshire, such as Manchester or Lebanon, and flying into London, then you can expect flight times to average 9h 59m and 13h 46m, respectively.