Cheap flights from New York LaGuardia Airport to St. Louis from C$ 201

The month of August is, on average, the cheapest month to fly to St. Louis from New York LaGuardia Airport, with most prices found around C$ 412. If you don’t want to visit St. Louis in August, then you should wait until October to fly from New York LaGuardia Airport, when ticket prices are also cheap, with an average price of C$ 417.

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 406. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 619 on average. Flights to St. Louis from New York LaGuardia Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from New York LaGuardia to Lambert-St Louis for the best New York LaGuardia - Lambert-St Louis flight prices

You are more likely to see cheaper flights to St. Louis from New York LaGuardia Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 480 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 York LaGuardia Airport for as low as C$ 361 on momondo.

There is only 1 cabin class available to choose from on New York LaGuardia to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, prices for New York LaGuardia Airport to St. Louis flights are approximately 18% cheaper when compared to flights at the same time last year.

As of March 2026, there are 11 flights per day flying from New York LaGuardia Airport to St. Louis. The most common time of day flights depart is 10:00a.m., with 50% of flights taking off at noon.

The number of flights available between New York LaGuardia Airport and St. Louis is 81 per week as of March 2026. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.