Cheap flights from New Hampshire to St. Louis from $170

In general, November is the cheapest month to fly from New Hampshire to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $356. The month of February is another great option to travel to St. Louis, with average flight prices from New Hampshire averaging around $366.

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $443. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $547. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

Flying to St. Louis from New Hampshire in the evening is the least expensive time of day to depart. momondo users have found prices as low as $432 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $492 per ticket.

You are more likely to see cheaper flights to St. Louis from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $504 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from New Hampshire for as low as $376 on momondo.