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$101+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
1 adult, Economy
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Find cheap flights from Detroit to San Antonio with Cheapflights

1. Tell us where you want to go

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 September or November, booked 83 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 June 29, 2026.

This Frontier deal was found by Cheapflights users on 6/24. 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.
Tue 8/117:40 am
DTW
-
SAT
1 stop12h 14m
Frontier
Wed 8/129:32 pm
SAT
-
DTW
1 stop8h 28m
Frontier
Deal found 6/24$250
This Frontier deal was found by Cheapflights users on 6/29. 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 7/307:40 am
DTW
-
SAT
1 stop12h 04m
Frontier
Wed 8/57:49 pm
SAT
-
DTW
1 stop15h 45m
Frontier
Deal found 6/29$254
This Expedia deal was found by Cheapflights users on 6/25. 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.
Fri 7/317:40 am
DTW
-
SAT
1 stop12h 04m
Frontier
Tue 8/49:32 pm
SAT
-
DTW
1 stop8h 28m
Frontier
Deal found 6/25$255
This Frontier deal was found by Cheapflights users on 6/24. 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 7/307:40 am
DTW
-
SAT
1 stop12h 04m
Frontier
Mon 8/39:51 am
SAT
-
DTW
1 stop7h 00m
Frontier
Deal found 6/24$260
This Booking.com deal was found by Cheapflights users on 6/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:19 pm
DTW
-
SAT
1 stop6h 35m
Frontier
Tue 8/188:26 pm
SAT
-
DTW
1 stop26h 33m
Frontier
Deal found 6/28$263
This Expedia deal was found by Cheapflights users on 6/24. 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.
Wed 7/157:40 am
DTW
-
SAT
1 stop12h 04m
Frontier
Wed 7/227:39 pm
SAT
-
DTW
1 stop27h 20m
Frontier
Deal found 6/24$265
This Booking.com deal was found by Cheapflights users on 6/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:20 pm
DTW
-
SAT
1 stop8h 11m
Frontier
Sun 8/238:26 pm
SAT
-
DTW
1 stop13h 59m
Frontier
Deal found 6/28$268
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Thu 8/206:50 am
DTW
-
SAT
1 stop13h 04m
Frontier
Sun 8/237:49 pm
SAT
-
DTW
1 stop14h 36m
Frontier
Deal found 6/24$270
This Booking.com deal was found by Cheapflights users on 6/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:40 am
DTW
-
SAT
1 stop12h 14m
Frontier
Thu 8/208:26 pm
SAT
-
DTW
1 stop13h 59m
Frontier
Deal found 6/28$273
This CheapOair deal was found by Cheapflights users on 6/25. 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 9/257:20 am
DTW
-
SAT
1 stop27h 52m
Frontier
Mon 9/289:57 am
SAT
-
DTW
1 stop24h 57m
Frontier
Deal found 6/25$280
This Expedia deal was found by Cheapflights users on 6/24. 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 7/237:51 pm
DTW
-
SAT
1 stop14h 05m
Frontier
Mon 7/279:32 pm
SAT
-
DTW
1 stop8h 28m
Frontier
Deal found 6/24$284
This Expedia deal was found by Cheapflights users on 6/27. 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.
Tue 7/217:40 am
DTW
-
SAT
1 stop12h 04m
Frontier
Fri 7/247:39 pm
SAT
-
DTW
1 stop27h 20m
Frontier
Deal found 6/27$285

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 June 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Frontier)

One-way from

$101
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$459

Good round-trip deal

$429 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. 8% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 29, 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

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

$379

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 8/13

8:30 pm-10:34 pm

Nonstop3h 04m

San Antonio

Mon 8/17

11:29 am-3:35 pm

Nonstop3h 06m

$379

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 7/31

8:15 pm-10:22 pm

Nonstop3h 07m

San Antonio

Tue 8/4

5:15 am-9:20 am

Nonstop3h 05m

$379
Quickest round-trip

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 8/14

8:30 pm-10:34 pm

Nonstop3h 04m

San Antonio

Tue 8/18

5:15 am-9:20 am

Nonstop3h 05m

$379

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 8/7

8:30 pm-10:34 pm

Nonstop3h 04m

San Antonio

Mon 8/10

2:22 pm-10:41 pm

1 stop7h 19m

$389

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 7/30

8:25 am-10:34 am

Nonstop3h 09m

San Antonio

Mon 8/3

2:43 pm-11:46 pm

1 stop8h 03m

$389

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 8/21

7:45 pm-12:28 am

1 stop5h 43m

San Antonio

Sun 8/23

5:15 am-9:20 am

Nonstop3h 05m

$389

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 9/4

4:25 pm-9:04 pm

1 stop5h 39m

San Antonio

Fri 9/11

5:15 am-9:15 am

Nonstop3h 00m

$389

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 9/18

11:10 am-5:10 pm

2 stops7h 00m

San Antonio

Tue 9/22

3:30 pm-9:50 pm

1 stop5h 20m

$404
Cheapest one-way

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 9/22

5:25 am-1:29 pm

2 stops9h 04m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 19 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 June.
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, July is the cheapest month in which you can book a flight from Detroit to San Antonio (average of $71). Flying from Detroit to San Antonio in January is currently the most expensive (average of $217). 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 June 29, 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 12% 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 June 29, 2026.

The most flights from DTT to SAT are scheduled on a Sunday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 76 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 June 27, 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 June 29, 2026.
Read reviews from past customers who have flown Southwest and Delta 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
7.9
Good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

7.9

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
7.9
Good
4,246 reviews
Southwest
7.9
Good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

7.9

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
8,450 reviews
Southwest
7.9
Good
4,246 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

7.9

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 7 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 fly from Detroit to San Antonio in about 3h 09m. The time it takes to get you to your destination is usually consistent. Detroit and San Antonio are separated by a distance of 1214 mi. All flights are typically nonstop.

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

    According to our current data, Frontier ($195), Delta ($338), 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 $168 while deals on Delta start at $188 one-way.

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

    Consider Aeromexico (74%), Delta (73%) or Korean Air (71%) 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 $519 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 $374.

  • 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, July is the cheapest month in which you can book a flight from Detroit to San Antonio (average of $71). Flying from Detroit to San Antonio in January is currently the most expensive (average of $217). 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 June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$195Average$260FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$336Average$418FlexibilityNo cancel feeOn-time63%
DeltaCheapest$339Average$457FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$358Average$488FlexibilityNo cancel feeOn-time71%

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