Cheap flights from St. Louis to North America from $35

The month of August is, on average, the cheapest month to fly to North America from St. Louis, with most prices found around $286. If you are unable to visit North America during the month of August, then departing from St. Louis during the month July is also very affordable. Most momondo users find prices during this month for around $295.

The cheapest day to depart from St. Louis to North America is on a Wednesday. Travelers who choose to depart for North America on a Wednesday will often find tickets for as low as $369. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to North America on Sunday is $469.

The cheapest time of day to fly to North America is at noon when flights can be purchased for as low as $341. Try not to purchase tickets in the afternoon because they tend to be around $455. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Lambert-St Louis to Orlando for the best Lambert-St Louis - North America flight prices

You are more likely to see cheaper flights to North America from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to North America for around $343 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to North America from St. Louis for as low as $273 on momondo.

There are 4 cabin classes available to choose from on Lambert-St Louis to North America flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, Delta, and Southwest are the most popular carriers operating from Lambert-St Louis to North America

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to North America from St. Louis according to our data. Frontier is the first choice among our users, with 36% of people opting to fly with this airline when traveling to North America. Keep in mind that there are 11 different airlines that fly to North America on a routine basis, so you have a few additional options to choose from.

As of April 2026, 72 flights take off from St. Louis and land in North America each day. The most common flight departure time for this route is 11:00AM, with 50% of daily flights taking off at noon.

As of April 2026, 504 flights take off from St. Louis and land in North America each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.