Cheap Flights from St. Louis to Billings from AU$ 252

Flight FAQs

• Which airlines offer the cheapest flights from St. Louis (STL) to Billings (BIL)?

  Based on Trip.com data, Delta Air Lines offers one-way fares as low as AU$ 252 on Cheapest nonstop routes (e.g. STL to BIL on Thu, Nov 27), while Delta Air Lines offers Cheapest nonstop round-trips from AU$ 665 departing on Tue, Dec 2 and returning on Sun, Dec 7.

• Which airlines offer flights from St. Louis to Billings?

  At the moment, several airlines serve connecting flights from St. Louis to Billings, including: United Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from St. Louis to Billings?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from St. Louis to Billings is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from St. Louis to Billings?

  To find best deals on flights from St. Louis to Billings, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Nov 27, with one-way flights priced at just AU$ 252.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Billings travel is around August.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from St. Louis to Billings to get the best price?

  The cheapest months to fly from St. Louis to Billings is November, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from St. Louis to Billings?

  After crunching the numbers on our November flight calendar, it's currently cheapest to fly from St. Louis to Billings on November 27, 2025 with Delta Air Lines, with prices starting at AU$ 251.

• Which airports can I fly through when travelling to Billings from St. Louis?

  You can land at any one of the following hubs in Billings, with St. Louis Lambert International Airport to Billings Logan International Airport (STL-BIL) is by far the most common option on this route: Billings Logan International Airport (BIL).

• What is the time difference between St. Louis and Billings?

  The time difference between Billings and St. Louis is 1h.

• How can I change or cancel my flight ticket from St. Louis to Billings?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.