Cheap Flights from Baltimore to San Antonio from $222

Frequently Asked Questions

• What are the cheapest flights from Baltimore to San Antonio (BWI-SAT)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as $222 on Cheapest nonstop routes (e.g. BWI to SAT on Mon, Jul 6), while Frontier Airlines offers Cheapest nonstop round-trips from $321 departing on Sat, Jul 11 and returning on Fri, Jul 17.

• Which airlines offer flights from Baltimore to San Antonio?

  At the moment, several airlines serve connecting flights from Baltimore to San Antonio, including: United Airlines Delta Air Lines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• How long does it take to fly from Baltimore (BWI) to San Antonio (SAT) and what is the distance?

  It takes around 4 hours 5 minutes to fly from Baltimore (BWI) to San Antonio (SAT).

• When is the best time to book flights from Baltimore to San Antonio?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Baltimore to San Antonio 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 many flights are there per week from Baltimore to San Antonio?

  Based on Trip.com data in the past 4 weeks, there is 6 flight per week flying from Baltimore to San Antonio. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/-/S -- UA2844 (08:48)

• How can I find the best deals on flights from Baltimore to San Antonio?

  To find best deals on flights from Baltimore to San Antonio, 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 Mon, Jul 6, with one-way flights priced at just $222.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · 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 San Antonio travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Baltimore (BWI) to San Antonio (SAT) the cheapest?

  The cheapest months to fly from Baltimore to San Antonio is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Baltimore to San Antonio on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Baltimore to San Antonio on June 24, 2026 with American Airlines, with prices starting at $364.

• Which airports can I fly to for San Antonio from Baltimore?

  You can land at any one of the following hubs in San Antonio, with Baltimore/Washington International Airport to San Antonio International Airport (BWI-SAT) is by far the most common option on this route: San Antonio International Airport (SAT) Kelly Field Annex/Lackland Air Force Base (SKF).

• Is there any time difference between Baltimore and San Antonio?

  The time difference between San Antonio and Baltimore is 1h.

• How do I change or cancel my ticket from Baltimore to San Antonio?

  Tickets can only be changed or canceled 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.