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Cheap flights from Detroit to San Antonio from C$ 204

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Detroit to San Antonio

Enter your travel dates to find the best prices.

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 23 July 2026.

Sat 15/81:19 p.m.
DTW
-
SAT
1 stop6h 35m
Frontier
Fri 21/88:26 p.m.
SAT
-
DTW
1 stop26h 33m
Frontier
Deal found 20/7C$ 421
Thu 22/108:51 a.m.
DTW
-
SAT
1 stop13h 55m
Frontier
Mon 26/1010:34 a.m.
SAT
-
DTW
1 stop6h 31m
Frontier
Deal found 20/7C$ 443
Tue 6/103:34 p.m.
DTW
-
SAT
2 stops44h 47m
Frontier
Fri 16/1010:34 a.m.
SAT
-
DTW
1 stop6h 31m
Frontier
Deal found 19/7C$ 447
Fri 23/109:59 p.m.
DTW
-
SAT
1 stop14h 22m
Frontier
Mon 26/1010:41 p.m.
SAT
-
DTW
2 stops24h 43m
Frontier
Deal found 22/7C$ 459
Sat 15/82:56 p.m.
DTW
-
SAT
2 stops19h 19m
Multiple Airlines
Fri 21/88:26 p.m.
SAT
-
DTW
1 stop13h 59m
Multiple Airlines
Deal found 20/7C$ 472
Wed 5/81:19 p.m.
DTW
-
SAT
1 stop6h 35m
Frontier
Sat 22/88:26 p.m.
SAT
-
DTW
1 stop26h 33m
Frontier
Deal found 22/7C$ 485

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 23 July 2026.

Round-trip from

C$ 421

One-way from

C$ 264

Popular in

May

Cheapest in

November

Average price

C$ 534
Frontier
  • Frontier
  • 15/8-21/8
  • 2 total stops
  • 33h 08m total
  • Detroit to San Antonio
Search Deals
Frontier
  • Frontier
  • 6/9
  • 2 total stops
  • 14h 31m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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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 629,999 searches. Data last updated 23 July 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

Tue 6/10

1:37 p.m.-3:50 p.m.

Nonstop3h 13m

San Antonio

Fri 16/10

5:15 a.m.-9:15 a.m.

Nonstop3h 00m

C$ 562

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 24/9

8:40 p.m.-10:44 p.m.

Nonstop3h 04m

San Antonio

Tue 29/9

4:00 p.m.-8:04 p.m.

Nonstop3h 04m

C$ 562

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 20/8

8:25 a.m.-10:34 a.m.

Nonstop3h 09m

San Antonio

Sun 23/8

5:15 a.m.-9:20 a.m.

Nonstop3h 05m

C$ 562

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 3/9

8:25 a.m.-10:34 a.m.

Nonstop3h 09m

San Antonio

Sun 6/9

5:15 a.m.-9:20 a.m.

Nonstop3h 05m

C$ 576
Quickest round-trip

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 11/9

1:47 p.m.-3:53 p.m.

Nonstop3h 06m

San Antonio

Sun 13/9

5:15 a.m.-9:14 a.m.

Nonstop2h 59m

C$ 576

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 20/10

8:51 p.m.-11:01 p.m.

Nonstop3h 10m

San Antonio

Sat 24/10

3:10 p.m.-7:15 p.m.

Nonstop3h 05m

C$ 576

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 28/8

1:45 p.m.-3:54 p.m.

Nonstop3h 09m

San Antonio

Sat 29/8

2:43 p.m.-9:33 p.m.

1 stop5h 50m

C$ 576

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 25/9

8:40 p.m.-10:44 p.m.

Nonstop3h 04m

San Antonio

Wed 30/9

11:36 a.m.-3:40 p.m.

Nonstop3h 04m

C$ 576

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 3/12

8:55 p.m.-11:20 p.m.

Nonstop3h 25m

San Antonio

Sun 6/12

4:00 p.m.-8:05 p.m.

Nonstop3h 05m

C$ 576

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 21/12

4:20 p.m.-9:32 p.m.

1 stop6h 12m

San Antonio

Sat 26/12

5:20 a.m.-9:20 a.m.

Nonstop3h 00m

C$ 576

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/7

Showing 1-10 of 24 resultsSorted by cheapest first
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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 C$ 431). Flying from Detroit to San Antonio in March is currently the most expensive (average of C$ 665). 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 23 July 2026.

It’s typically best to fly out from Detroit to San Antonio in the evening. Doing so could potentially save you 58% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 23 July 2026.

The most flights from DTT to SAT are scheduled on a Thursday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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

Airfare is typical for this route at the moment.
Detroit to San Antonio flights typically cost between C$ 368 and C$ 581 in August.
The cheapest round-trip price found within the last 5 days was C$ 421 on Frontier (15 Aug-21 Aug).

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

Share of one-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 75% of one-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.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of C$ 235.

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 Nashville (BNA) have the shortest average one-way travel time for 1-stop routes: 5h 02m.

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 0h 53m.

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

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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.

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

    Departing from Detroit to San Antonio will take you 3h 13m. Airlines will cover a distance of 1954 km. Generally, flights for this route are direct.

  • 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.

  • 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 C$ 431). Flying from Detroit to San Antonio in March is currently the most expensive (average of C$ 665). 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

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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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Fly with Cheapflights

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How does Cheapflights help users find flights from Detroit to San Antonio?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Detroit to San Antonio. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Detroit to San Antonio?

Cheapflights helps you find that perfect flight to San Antonio from Detroit by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Detroit to San Antonio with no change fees?

Certainly. Search results for flights to San Antonio from Detroit shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Detroit to San Antonio become cheaper?

Yes! Start tracking prices for Detroit to San Antonio flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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