Cheap Flights from St. Louis to Houston from S$ 60

Frequently Asked Questions

• Which airlines offer the cheapest flights from St. Louis to Houston?

  Based on Trip.com data, Frontier Airlines offers Cheapest nonstop one-way flights from S$ 60 (for example, STL–IAH on Fri, Nov 13). For a Cheapest nonstop return flight, Frontier Airlines offers fares from S$ 191, departing on Sun, Oct 25 and returning on Tue, Oct 27.

• How long is a flight from St. Louis (STL) to Houston (HOU)?

  It takes about 2 hours 22 minutes to fly from St. Louis (STL) to Houston (HOU).

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

  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 Houston 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 Houston?

  Here are some tips for finding the best flight deals from St. Louis to Houston on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Fri, Nov 13, with one-way fares from just S$ 60.
  · Compare airlines. Frontier Airlines currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. January is generally the busiest month for travel to Houston.
  · Get exclusive promo codes on the Trip.com app.

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

  The cheapest month to book a flight from St. Louis to Houston is usually November, when demand is lower.

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

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from St. Louis to Houston on October 21, 2026 with Frontier Airlines, with prices starting at S$ 191.

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

  The time difference between Houston and St. Louis is 0m.

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

  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.

• What is the average cost of a one-way flight from St. Louis to Houston?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from St. Louis to Houston is S$ 263. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from St. Louis to Houston?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from St. Louis to Houston is S$ 470. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from St. Louis to Houston on Trip.com?

  Enter St. Louis and Houston, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.