Cheap flights from St. Louis (STL) to Shannon (SNN) from $1,124

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 63% on the overall cost on flights from St. Louis to Shannon.

The best pricing can be found in the month of October. Prices to Shannon from St. Louis average $858. You can even find prices in October for less than $858, as users have found deals to Shannon from as low as $587. The month of July appears to be one of the more expensive times to travel to Shannon from St. Louis. Flying in the targeted month can save you up to 41%.

When flying from St. Louis to Shannon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 32% versus a flight in the evening.

Some of our airline partners flying from Lambert-St Louis to Shannon have new flexible policies in place due to COVID-19. United Airlines, American Airlines, and Lufthansa are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Yes, there are multiple flights from St. Louis to Shannon for under $1,200. The cheapest flight booked recently is on United Airlines for just $1,124, but on average you can expect to pay $2,219.

According to our current data, United Airlines ($1,124), Air Canada ($2,180), and Lufthansa ($3,074) offers the cheapest pricing from St. Louis to Shannon.

The most popular airlines flying from St. Louis to Shannon are American Airlines, British Airways and Lufthansa. Something to consider prior to booking your flight.

STL and SNN are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SNN refers to a flight route from Lambert-St Louis Airport to Shannon Airport.