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Cheap flights from Detroit to San Antonio from C$ 314

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Detroit All airports to San Antonio are usually found in August or June, booked 80 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 3 February 2026.

Tue 24/25:45 a.m.
DTW
-
SAT
1 stop28h 45m
Spirit Airlines
Sat 28/210:26 a.m.
SAT
-
DTW
1 stop9h 34m
Spirit Airlines
Deal found 2/2C$ 358
Wed 25/25:15 a.m.
DTW
-
SAT
1 stop19h 44m
Spirit Airlines
Sat 28/210:26 a.m.
SAT
-
DTW
1 stop9h 34m
Spirit Airlines
Deal found 1/2C$ 366
Fri 17/412:22 p.m.
DTW
-
SAT
1 stop11h 07m
Spirit Airlines
Mon 20/410:26 a.m.
SAT
-
DTW
1 stop21h 59m
Spirit Airlines
Deal found 2/2C$ 369
Fri 17/412:22 p.m.
DTW
-
SAT
1 stop11h 07m
Multiple Airlines
Mon 20/412:46 p.m.
SAT
-
DTW
2 stops32h 22m
Multiple Airlines
Deal found 2/2C$ 392
Wed 18/21:30 p.m.
DTW
-
SAT
1 stop11h 29m
Spirit Airlines
Sat 21/26:00 a.m.
SAT
-
DTW
1 stop10h 07m
Spirit Airlines
Deal found 2/2C$ 393
Mon 9/32:35 p.m.
DTW
-
SAT
2 stops10h 24m
Spirit Airlines
Mon 16/310:22 a.m.
SAT
-
DTW
2 stops11h 15m
Spirit Airlines
Deal found 1/2C$ 395
Fri 13/21:30 p.m.
DTW
-
SAT
1 stop11h 29m
Spirit Airlines
Sun 15/210:26 a.m.
SAT
-
DTW
1 stop8h 14m
Spirit Airlines
Deal found 2/2C$ 433
Fri 3/45:50 p.m.
DTW
-
SAT
2 stops16h 37m
Multiple Airlines
Mon 6/46:00 p.m.
SAT
-
DTW
1 stop13h 02m
Multiple Airlines
Deal found 2/2C$ 445

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 3 February 2026.

Round-trip from

C$ 356

One-way from

C$ 321

Popular in

February

Cheapest in

August

Average price

C$ 640
Spirit Airlines
  • Spirit Airlines
  • 13/2-15/2
  • 2 total stops
  • 20h 12m total
  • Detroit to San Antonio
Search Deals
Southwest
  • Southwest
  • 2/3
  • 2 total stops
  • 8h 50m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 143 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 629,999 searches. Data last updated 3 February 2026.
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

Thu 2/4

8:20 p.m.-10:42 p.m.

Nonstop3h 22m

San Antonio

Tue 7/4

5:10 a.m.-9:07 a.m.

Nonstop2h 57m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 29/5

8:12 p.m.-10:27 p.m.

Nonstop3h 15m

San Antonio

Sun 31/5

5:20 a.m.-9:25 a.m.

Nonstop3h 05m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 7/3

8:25 p.m.-10:55 p.m.

Nonstop3h 30m

San Antonio

Sat 14/3

5:10 a.m.-9:07 a.m.

Nonstop2h 57m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 17/4

8:48 p.m.-11:08 p.m.

Nonstop3h 20m

San Antonio

Mon 20/4

5:10 a.m.-9:10 a.m.

Nonstop3h 00m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 28/3

8:20 p.m.-10:42 p.m.

Nonstop3h 22m

San Antonio

Tue 7/4

5:10 a.m.-9:07 a.m.

Nonstop2h 57m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 14/7

8:50 a.m.-11:11 a.m.

Nonstop3h 21m

San Antonio

Mon 20/7

12:50 p.m.-4:58 p.m.

Nonstop3h 08m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 23/7

8:55 p.m.-11:12 p.m.

Nonstop3h 17m

San Antonio

Sun 26/7

12:50 p.m.-4:58 p.m.

Nonstop3h 08m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 3/7

8:55 p.m.-11:12 p.m.

Nonstop3h 17m

San Antonio

Tue 7/7

4:00 p.m.-8:10 p.m.

Nonstop3h 10m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 9/3

8:20 p.m.-10:42 p.m.

Nonstop3h 22m

San Antonio

Mon 16/3

5:10 a.m.-9:07 a.m.

Nonstop2h 57m

C$ 463

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 3/4

8:20 p.m.-10:42 p.m.

Nonstop3h 22m

San Antonio

Fri 10/4

5:10 a.m.-9:07 a.m.

Nonstop2h 57m

C$ 463

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/1

Showing 1-10 of 22 results
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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

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 30 January 2026.

Booking 79 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.

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

Currently, September is the cheapest month in which you can book a flight from Detroit to San Antonio (average of C$ 134). Flying from Detroit to San Antonio in January is currently the most expensive (average of C$ 307). 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 3 February 2026.

It’s typically best to fly out from Detroit to San Antonio in the evening. Doing so could potentially save you 49% 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 3 February 2026.

The most flights from DTT to SAT are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 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 3 February 2026.
Read through reviews of airlines operating flights from Detroit to San Antonio, such as Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Spirit Airlines
6.3
Okay
8,407 reviews
Check prices

Overall

6.3

Crew

7.0

Boarding

6.6

Entertainment

5.0

Food

5.1

Comfort

5.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

IAH - BWI

Everything was alright didn't get any snacks cause it was an short flight. The workers were very nice and respectful
Spirit Airlines
6.3
Okay
8,407 reviews
Spirit Airlines
6.3
Okay
8,407 reviews
Check prices

Overall

6.3

Crew

7.0

Boarding

6.6

Entertainment

5.0

Food

5.1

Comfort

5.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

IAH - BWI

Everything was alright didn't get any snacks cause it was an short flight. The workers were very nice and respectful

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 22m. 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%), Korean Air (73%) or Delta (68%) 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, September is the cheapest month in which you can book a flight from Detroit to San Antonio (average of C$ 134). Flying from Detroit to San Antonio in January is currently the most expensive (average of C$ 307). 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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