To save on the cost of your flight from New Hampshire to St Louis, book at least 31 days before your planned departure. Booking around this time can save you about 96% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $374 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $553.
The best pricing can be found in the month of August. Prices to St Louis from New Hampshire average $266. You can even find prices in August for less than $266, as users have found deals to St Louis from as low as $158. The month of December appears to be one of the more expensive times to travel to St Louis from New Hampshire. Flying in the targeted month can save you up to 23%.
The chart below displays the airlines Cheapflights users traveling from New Hampshire to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
||$117||$306||No cancel fee||69%|
||$92||$324||No cancel fee||N/A|
||$117||$341||No cancel fee||71%|