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$73+ Cheap flights from Detroit to San Antonio (DTT - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit All airports to San Antonio are usually found in June or October, booked 65 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Detroit to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$175
(Cheapflightsfares)

One-way from

$73
(FlightHub)

Popular in

March

Cheapest in

June

Average price

$409

Good round-trip deal

$274 or less

Good one-way deal

$128 or less
From Detroit (DTT) to San Antonio
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One-way flight from Detroit (DTT) to San Antonio
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Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Detroit (DTT) to San Antonio.
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Price to beat on a one-way flight from Detroit (DTT) to San Antonio.
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Find flight deals from Detroit to San Antonio

Cheapest flights from Detroit to San Antonio
Explore the most affordable flight options available from Detroit to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/286:00 amDTW - SAT
Nonstop3h 04mSpirit Airlines
Fri 8/19:00 amSAT - DTW
Nonstop3h 12mSpirit Airlines
Deal found 7/2$175
This Priceline deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:49 amDTW - SAT
1 stop8h 26mMultiple Airlines
Sun 10/512:45 pmSAT - DTW
Nonstop3h 04mMultiple Airlines
Deal found 7/1$177
This Priceline deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:00 amDTW - SAT
1 stop9h 33mFrontier
Mon 10/203:28 pmSAT - DTW
1 stop8h 17mFrontier
Deal found 7/3$194

Cheapflights Fare Finder

Customize your flight search to find flights from Detroit to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Detroit to San Antonio that are best for you.

Fly from

Detroit

Fly to

San Antonio

Route

Depart

Return

Price

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 7/28

6:00 am-8:04 am

Nonstop3h 04m

San Antonio

Fri 8/1

9:00 am-1:12 pm

Nonstop3h 12m

$175

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 7/28

6:00 am-8:04 am

Nonstop3h 04m

San Antonio

Fri 8/1

5:38 pm-11:25 am

1 stop16h 47m

$184

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 8/28

9:45 am-11:44 am

Nonstop2h 59m

$73

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 9/6

8:00 am-2:27 pm

1 stop7h 27m

$77

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 8/28

7:30 am-1:50 pm

2 stops7h 20m

$164

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 9/6

9:30 pm-11:34 pm

Nonstop3h 04m

$199

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 8/28

6:00 am-10:48 pm

3 stops17h 48m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Detroit to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Detroit with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Detroit to San Antonio

How far ahead should I book a flight from Detroit to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Detroit to San Antonio. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Detroit to San Antonio, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Detroit to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Detroit to San Antonio (average of $295). Flying from Detroit to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DTT to SAT?

Find hourly flight availability from Detroit to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

One of the essential ways to save on airfare from Detroit to San Antonio is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 11% on airfare.

What is the cheapest day to fly from Detroit to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Detroit to San Antonio. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Detroit to San Antonio flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Detroit to San Antonio

Explore weekly flight availability from Detroit to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from DTT to SAT are scheduled on a Thursday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Detroit to San Antonio?

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Detroit to San Antonio. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,270 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,970 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,845 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,094 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,284 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Detroit to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Detroit to San Antonio?

    To fly from Detroit to San Antonio, you need to book a flight from All airports (DTT) to San Antonio (SAT). Nonstop flights to San Antonio from Detroit All airports take 2h 59m on average. When it comes time to book airfare, you have a few options: there are 5 outbound flights from All airports to San Antonio offered by 6 different airlines.

  • What is the cheapest airline to fly from Detroit to San Antonio round-trip?

    According to our current data, Spirit Airlines ($175), offers the cheapest pricing from Detroit to San Antonio. Spirit Airlines is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Detroit to San Antonio one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $73. Frontier flights start at $77 while deals on Southwest start at $164 one-way.

  • What are the most reliable airlines from Detroit to San Antonio?

    Consider Korean Air (83%), Spirit Airlines (81%) or WestJet (77%) when booking your flight. These represent the most reliable airlines when flying from Detroit to San Antonio.

  • What are the cheapest flights from Detroit to San Antonio?

    On average you can expect to pay $249 for a flight from Detroit to San Antonio. The cheapest flight overall is $96 while the most popular route, (Detroit Metropolitan Wayne County - San Antonio) is currently priced at $148.

  • Can I find deals for flights from Detroit to San Antonio that include hotel bookings?

    Yes. In addition to deals on Detroit to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to San Antonio.

  • Can I find deals for business class flights from Detroit to San Antonio?

    Yes. Cheapflights offers flight deals from Detroit to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Detroit to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Detroit to San Antonio (average of $295). Flying from Detroit to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
New Braunfels

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Top 6 airlines flying from Detroit to San Antonio

Discover the top 6 airlines that operate flights from Detroit to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$238FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$168FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$282Average$459FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$284Average$358FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$468FlexibilityNo cancel feeOn-time69%
DeltaCheapest$293Average$437FlexibilityNo cancel feeOn-timeN/A

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