Cheap flights from the United States to San Antonio from $45
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to San Antonio departing on 9/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from the United States to San Antonio
Recent round-trip flight deals from the United States to San Antonio
Recent one-way flight deals from the United States to San Antonio
Recent last minute flight deals from the United States to San Antonio
Recent direct flight deals from the United States to San Antonio
United Airlines flights from United States to San Antonio
Our best United Airlines deals on United States to San Antonio flight tickets
Delta flights from United States to San Antonio
Our best Delta deals on United States to San Antonio flight tickets
See travel insights to San Antonio from
How to get the cheapest flight ticket from United States to San Antonio
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Antonio?
If you aren’t able to travel during the month of September, then book flights to San Antonio from United States during August instead. Flights to San Antonio in August, while not as cheap as those in September, still average around $231.
What is the cheapest day to depart on your flight to San Antonio?
The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $357. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $471.
What is the cheapest time of day to depart on your flight to San Antonio?
According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from United States to San Antonio in the afternoon for as low as $166. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $426. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest United States to San Antonio flight route?
Fly from Los Angeles to San Antonio for the best United States - San Antonio flight prices
How far in advance should I book a flight to San Antonio?
You are more likely to see cheaper flights to San Antonio from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $373 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from United States for as low as $281 on momondo.
What cabin class options are available on United States to San Antonio flights?
There are 4 cabin classes available to choose from on United States to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from United States to San Antonio?
Frontier, Spirit Airlines, and Southwest are the most popular carriers operating from United States to San Antonio
What airlines fly to San Antonio?
Delta, United Airlines and American Airlines are the top three most popular airlines that fly to San Antonio from United States according to our data. Delta is the first choice among our users, with 36% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 10 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.
How many flights depart from United States to San Antonio on average per day?
90 flights are operational daily from United States to San Antonio as of June 2025. The most popular departure time for this route is 9:00AM, with 37% of flights per day taking off in the evening.
How many flights depart from United States to San Antonio on average per week?
The number of flights available between United States and San Antonio is 636 per week as of June 2025. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.
Cheap United States to San Antonio flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United States to San Antonio
When did momondo last update prices for flights from United States to San Antonio Airport?
Prices for flights from United States to San Antonio Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United States to San Antonio Airport?
As of June 2025, there are 9 operators available to choose from for flights from United States to San Antonio Airport.
How old do you have to be to fly from United States to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from United States to San Antonio?
momondo data reveals that the most frequently booked plane model on the route from United States to San Antonio is Airbus A319, representing 14.04% of all bookings. The subsequent popular models are Boeing 737-700 Passenger/BBJ1 (winglets) at 10.65%, Boeing 737 MAX 8 at 10.17%, and Airbus A320neo at 9.57%.
Best airlines flying from United States to San Antonio
Compare and see reviews for airlines that fly from United States to San Antonio with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $48 | Free Cancellation | Rating 5.9 3,290 reviews | |||
| PriceFrom $71 | Free Cancellation | Rating 6.3 8,094 reviews | |||
| PriceFrom $103 | Free Cancellation | Rating 7.3 2,920 reviews | |||
| PriceFrom $110 | Free Cancellation | Rating 8.0 7,973 reviews | |||
| PriceFrom $137 | Free Cancellation | Rating 7.4 8,852 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $197 | Free Cancellation | Rating 8.0 4,278 reviews | |||
| PriceFrom $211 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $222 | Free Cancellation | Rating 7.8 2,529 reviews |
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from United States to San Antonio?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to San Antonio. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from United States to San Antonio with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for United States to San Antonio flights to just show those with flexible booking policies.
How can momondo help me find flights from United States to San Antonio?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Antonio from United States.
I’m not ready to book a flight from United States to San Antonio right now. Can momondo alert me if prices change?
Yes. momondo can track prices for United States to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.