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$129+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Find cheap flights from Detroit to San Antonio with Cheapflights

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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Detroit All airports to San Antonio are usually found in November or July, booked 6 days in advance, depart on a Friday or Wednesday and return on a Saturday

Cheap 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 18, 2026.

This Frontier deal was found by Cheapflights users on 7/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:13 pm
DTW
-
SAT
1 stop13h 43m
Frontier
Wed 8/198:26 pm
SAT
-
DTW
1 stop26h 33m
Frontier
Deal found 7/13$256
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:55 am
DTW
-
SAT
1 stop12h 36m
Frontier
Thu 9/1011:08 am
SAT
-
DTW
1 stop12h 16m
Frontier
Deal found 7/15$260
This CheapOair deal was found by Cheapflights users on 7/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:55 am
DTW
-
SAT
1 stop12h 36m
Frontier
Sat 8/228:26 pm
SAT
-
DTW
1 stop26h 33m
Frontier
Deal found 7/13$265
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:20 pm
DTW
-
SAT
1 stop8h 11m
Frontier
Fri 8/219:51 am
SAT
-
DTW
1 stop22h 03m
Frontier
Deal found 7/14$270
This Frontier deal was found by Cheapflights users on 7/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:59 pm
DTW
-
SAT
1 stop13h 13m
Frontier
Thu 10/111:08 am
SAT
-
DTW
1 stop12h 16m
Frontier
Deal found 7/16$271
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:20 pm
DTW
-
SAT
1 stop8h 11m
Frontier
Thu 8/278:26 pm
SAT
-
DTW
1 stop13h 59m
Frontier
Deal found 7/17$275
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:20 pm
DTW
-
SAT
1 stop8h 11m
Frontier
Sun 8/308:26 pm
SAT
-
DTW
1 stop13h 59m
Frontier
Deal found 7/15$276
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:20 pm
DTW
-
SAT
1 stop8h 11m
Frontier
Fri 9/119:57 am
SAT
-
DTW
1 stop6h 42m
Frontier
Deal found 7/14$278
This Expedia deal was found by Cheapflights users on 7/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:13 pm
DTW
-
SAT
1 stop13h 43m
Frontier
Tue 8/117:49 pm
SAT
-
DTW
1 stop27h 10m
Frontier
Deal found 7/13$279
This CheapOair deal was found by Cheapflights users on 7/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:55 am
DTW
-
SAT
1 stop12h 36m
Frontier
Sat 8/299:51 am
SAT
-
DTW
1 stop22h 03m
Frontier
Deal found 7/15$280
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:13 pm
DTW
-
SAT
1 stop13h 43m
Frontier
Sun 8/238:26 pm
SAT
-
DTW
1 stop13h 59m
Frontier
Deal found 7/14$281
This CheapOair deal was found by Cheapflights users on 7/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:30 am
DTW
-
SAT
1 stop13h 07m
Frontier
Thu 8/208:26 pm
SAT
-
DTW
1 stop13h 59m
Frontier
Deal found 7/16$282

Find 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 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(Frontier)

One-way from

$129
(Super.com)

Popular in

May

Cheapest in

November

Average price

$379

Good round-trip deal

$379 or less

Good one-way deal

$268 or less
Provider with most accurate pricing for Detroit (DTT)-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-San Antonio flights.
Search Deals
From Detroit (DTT) to San Antonio
Search Deals
One-way flight from Detroit (DTT) to San Antonio
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Detroit (DTT) to San Antonio.
Search Deals
Price to beat on a one-way flight from Detroit (DTT) to San Antonio.
Search Deals

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 18, 2026.
Use the filters below to find and compare flights from Detroit to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 8/20

8:25 am-10:34 am

Nonstop3h 09m

San Antonio

Sun 8/23

5:15 am-9:20 am

Nonstop3h 05m

$399

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 12/3

12:40 pm-3:04 pm

Nonstop3h 24m

San Antonio

Sun 12/6

12:50 pm-4:53 pm

Nonstop3h 03m

$399

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 8/20

8:55 am-2:45 pm

2 stops6h 50m

San Antonio

Mon 8/24

2:15 pm-8:50 pm

1 stop5h 35m

$404

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 8/17

6:20 am-12:50 pm

2 stops7h 30m

San Antonio

Thu 8/20

1:00 pm-9:20 pm

2 stops7h 20m

$409

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 11/2

1:30 pm-6:50 pm

2 stops6h 20m

San Antonio

Wed 11/4

1:00 pm-8:50 pm

2 stops6h 50m

$409

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 11/13

8:50 am-11:20 am

Nonstop3h 30m

San Antonio

Sat 11/14

6:45 am-3:11 pm

1 stop7h 26m

$409

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 10/5

4:55 pm-11:35 pm

2 stops7h 40m

San Antonio

Wed 10/14

1:00 pm-9:00 pm

2 stops7h 00m

$409

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 9/16

8:25 am-12:49 pm

1 stop5h 24m

San Antonio

Wed 9/30

6:10 pm-12:54 am

1 stop5h 44m

$419

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 9/15

12:55 pm-5:55 pm

2 stops6h 00m

San Antonio

Fri 9/18

2:05 pm-10:15 pm

2 stops7h 10m

$419

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 8/25

3:35 pm-11:05 pm

2 stops8h 30m

San Antonio

Wed 8/26

3:30 pm-9:50 pm

1 stop5h 20m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Detroit to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to San Antonio in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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 $306). Flying from Detroit to San Antonio in March is currently the most expensive (average of $472). 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 18, 2026.

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 afternoon tend to be the most expensive. A flight at noon could potentially save you up to 9% on airfare.

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 18, 2026.

The most flights from DTT to SAT are scheduled on a Sunday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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

What’s the top layover airport for flights from Detroit to San Antonio?

Share of 1-stop round-trip flights from Detroit to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.

Nashville (BNA) – chosen by Cheapflights users on 67% of 1-stop itineraries from Detroit to San Antonio on Cheapflights.

What’s the cheapest layover airport for flights from Detroit to San Antonio?

Average round-trip fare for 1-stop flights from Detroit to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Chicago (MDW) is the most affordable 1-stop option, with an average round-trip price of $326.

What’s the fastest layover option from Detroit to San Antonio?

Shortest average travel time for 1-stop one-way flights from Detroit to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 4h 50m.

Which airport typically offers the quickest layover for flights from Detroit to San Antonio?

Average layover duration for 1-stop one-way flights from Detroit to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Nashville (BNA) offer the fastest connection on this route, with an average layover time of 1h 13m.

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

To ensure you get the cheapest price possible for a flight from Detroit to San Antonio, you should look to book at least 80 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 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 July 11, 2026.

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. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 18, 2026.
Read reviews from past customers who have flown Southwest,Delta, andFrontier 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
4,243 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.8
Good
8,476 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.6
Fair
2,793 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 3h 04m on average. When it comes time to book airfare, you have a few options: there are 12 outbound flights from All airports to San Antonio offered by 4 different airlines.

  • How long is the flight from Detroit to San Antonio?

    Airlines like Delta and Southwest fly from Detroit to San Antonio in about 3h 30m. The time it takes to get you to your destination can typically vary by up to 3h 20m. Detroit and San Antonio are separated by a distance of 1214 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Detroit to San Antonio round-trip?

    According to our current data, Frontier ($195), Delta ($337), and Southwest ($342) offers the cheapest pricing from Detroit to San Antonio. Frontier 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 Frontier, which is currently one of the cheapest options available, starting at $72. Southwest flights start at $160 while deals on Delta start at $188 one-way.

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

    Consider Aeromexico (76%), Delta (74%) or WestJet (74%) 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 $374 for a flight from Detroit to San Antonio. The cheapest flight overall is $182 while the most popular route, (Detroit Metropolitan Wayne County - San Antonio) is currently priced at $299.

  • 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 $306). Flying from Detroit to San Antonio in March is currently the most expensive (average of $472). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Detroit to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Detroit to San Antonio

Discover the top 4 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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$195Average$285FlexibilityNo cancel feeOn-time62%
DeltaCheapest$337Average$462FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$342Average$419FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$358Average$488FlexibilityNo cancel feeOn-time71%

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