Cheap flights from Detroit to San Antonio from C$ 187

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
31 Mar — 7 Apr1
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 81 days in advance, depart on a Wednesday or Monday 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 1 March 2026.

Wed 22/47:00 a.m.
DTW
-
SAT
2 stops11h 20m
Southwest
Sun 26/45:15 a.m.
SAT
-
DTW
1 stop5h 45m
Southwest
Deal found 27/2C$ 365
Tue 3/36:10 p.m.
DTW
-
SAT
1 stop6h 49m
Spirit Airlines
Tue 10/36:00 a.m.
SAT
-
DTW
1 stop6h 20m
Spirit Airlines
Deal found 25/2C$ 401
Tue 3/36:10 p.m.
DTW
-
SAT
1 stop6h 49m
Multiple Airlines
Tue 10/310:26 a.m.
SAT
-
DTW
2 stops20h 41m
Multiple Airlines
Deal found 26/2C$ 413
Sat 21/35:05 a.m.
DTW
-
SAT
1 stop8h 22m
Multiple Airlines
Sun 22/36:45 a.m.
SAT
-
DTW
1 stop27h 14m
Multiple Airlines
Deal found 27/2C$ 425
Tue 7/46:10 a.m.
DTW
-
SAT
2 stops7h 00m
Southwest
Tue 14/41:40 p.m.
SAT
-
DTW
2 stops6h 55m
Southwest
Deal found 25/2C$ 454
Thu 16/48:48 p.m.
DTW
-
SAT
Nonstop3h 20m
Delta
Thu 23/45:10 a.m.
SAT
-
DTW
Nonstop3h 00m
Delta
Deal found 27/2C$ 462

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 1 March 2026.

Round-trip from

C$ 365

One-way from

C$ 187

Popular in

February

Cheapest in

August

Average price

C$ 596
Southwest
  • Southwest
  • 22/4-26/4
  • 3 total stops
  • 17h 05m total
  • Detroit to San Antonio
Spirit Airlines
  • Spirit Airlines
  • 2/5
  • 1 total stop
  • 10h 31m total
  • Detroit to San Antonio
Highest demand for flights based on searches. 20% potential increase in price (C$ 176 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 1 March 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

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$ 462

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 29/7

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

Nonstop3h 21m

San Antonio

Wed 5/8

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

Nonstop3h 05m

C$ 462

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 22/4

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

Nonstop3h 20m

San Antonio

Sun 26/4

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

Nonstop3h 00m

C$ 462

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 16/4

7:47 p.m.-12:46 a.m.

1 stop5h 59m

San Antonio

Wed 22/4

11:50 a.m.-3:50 p.m.

Nonstop3h 00m

C$ 544

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 21/4

6:29 a.m.-11:21 a.m.

1 stop5h 52m

San Antonio

Sat 25/4

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

Nonstop3h 00m

C$ 544

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 8/4

4:26 p.m.-9:47 p.m.

1 stop6h 21m

San Antonio

Wed 22/4

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

Nonstop3h 00m

C$ 544

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 19/5

8:20 a.m.-5:05 p.m.

1 stop9h 45m

San Antonio

Sun 24/5

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

Nonstop3h 05m

C$ 544

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 29/7

10:40 a.m.-5:30 p.m.

2 stops7h 50m

San Antonio

Wed 5/8

7:10 a.m.-3:00 p.m.

2 stops6h 50m

C$ 555

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 30/6

6:40 a.m.-12:45 p.m.

2 stops7h 05m

San Antonio

Sat 4/7

5:10 a.m.-3:30 p.m.

1 stop9h 20m

C$ 586

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 21/4

9:00 a.m.-1:08 p.m.

1 stop5h 08m

San Antonio

Sat 25/4

5:30 a.m.-1:20 p.m.

2 stops6h 50m

C$ 605

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/2

Showing 1-10 of 19 resultsSorted by cheapest first
1
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 27 February 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$ 322). 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 1 March 2026.

It’s typically best to fly out from Detroit to San Antonio in the morning. Doing so could potentially save you 57% 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 1 March 2026.

The most flights from DTT to SAT are scheduled on a Friday (8 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 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 60% 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.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of C$ 171.

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.

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 1 March 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.

Overall

6.3

Crew

7.0

Comfort

5.9

Entertainment

4.9

Boarding

6.6

Food

5.0

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

Overall

6.3

Crew

7.0

Comfort

5.9

Entertainment

4.9

Boarding

6.6

Food

5.0

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 21m. Airlines will cover a distance of 1954 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Consider Aeromexico (91%), Korean Air (74%) or Delta (73%) 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$ 322). 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.

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Alternative routes for Detroit to San Antonio

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

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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.

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