$119 Find Cheap Flights from St. Louis to Rhode Island - Compare and Save

The cheapest time of day to fly to Rhode Island is generally at night, when round-trip flights cost $508 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to Rhode Island is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $944.

The cheapest month for flights from St. Louis to Rhode Island is February, when tickets cost $0 (return) on average. On the other hand, the most expensive months are January and June, when the average cost of round-trip tickets is $977 and $664 respectively.

When flying from St. Louis to Rhode Island, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

To get a below average price on the flight from St. Louis to Rhode Island, you should book around 4 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

The earliest flight from St. Louis to Rhode Island departs at 7:00 am, landing in Boston at 10:35 am.

If you prefer to fly at night, the latest flight from St. Louis to Rhode Island jets off at 8:05 pm and lands in Boston at 11:40 pm.