Cheap flights from St. Louis to New Hampshire from $119

The month of August is another great option to travel to New Hampshire, with average flight prices from St. Louis averaging around $378.

The cheapest day to depart on your flight to New Hampshire is on a Wednesday when prices can be found for as low as $500. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Saturday, with ticket prices averaging around $684.

According to our data, the cheapest time of day to fly to New Hampshire is in the afternoon. momondo users have found flights departing from St. Louis to New Hampshire in the afternoon for as low as $511. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $915. Of course, these prices can vary depending on the time of year and what airport you fly to.

You are more likely to see cheaper flights to New Hampshire from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to New Hampshire for around $496 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Hampshire from St. Louis for as low as $427 on momondo.