Skip to main content
Beginning of main content

Cheap Flights from Billings to St. Louis $302.21

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Best Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheapest Flights from Billings to St. Louis (BIL to STL)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Billings to St. Louis (BIL to STL)

Question : In the next four weeks, what day should you book your trip?
Answer : December 13th offers bookings (as of December 5th) that are 19% below the average price for this route. Saving on booking fees means you'll have more money in hand for the trip.

Question : How long are most people's visits to Saint Louis when they fly in from Billings?
Answer : Over the next two months, passengers from BIL to STL are planning on staying for seven days on average.

Question : Would you be willing to change your travel days if it saved you money?
Answer : Sunday is your cheapest day to fly in December. Flexibility is paramount when booking travel plans in order to keep costs down.

Question : Which airline is offering the cheapest round-trip flight from BIL to STL?
Answer : Delta Air Lines has been booking passengers at the cheapest fare for flights scheduled throughout the next three months.