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Cheap flights from Detroit to San Antonio from C$ 138

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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
14 Jan — 21 Jan1
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 15 December 2025.

Tue 30/128:20 p.m.DTW - SAT
Nonstop3h 29mDelta
Wed 7/14:00 p.m.SAT - DTW
Nonstop3h 03mDelta
Deal found 14/12C$ 589
Mon 29/128:20 p.m.DTW - SAT
Nonstop3h 29mDelta
Sat 17/14:00 p.m.SAT - DTW
Nonstop3h 03mDelta
Deal found 14/12C$ 609
Mon 29/125:19 a.m.DTW - SAT
1 stop8h 09mDelta
Sun 11/14:00 p.m.SAT - DTW
Nonstop3h 03mDelta
Deal found 14/12C$ 660
Mon 29/128:20 p.m.DTW - SAT
Nonstop3h 29mDelta
Mon 5/15:20 a.m.SAT - DTW
1 stop6h 38mDelta
Deal found 13/12C$ 701
Mon 29/126:00 a.m.DTW - SAT
1 stop6h 50mMultiple Airlines
Sun 4/112:45 p.m.SAT - DTW
2 stops27h 26mMultiple Airlines
Deal found 12/12C$ 717
Mon 29/128:20 p.m.DTW - SAT
Nonstop3h 29mDelta
Thu 1/15:20 a.m.SAT - DTW
Nonstop3h 01mDelta
Deal found 15/12C$ 728
Wed 31/128:35 a.m.DTW - SAT
Nonstop3h 33mDelta
Sun 4/14:06 p.m.SAT - DTW
Nonstop3h 05mDelta
Deal found 13/12C$ 755

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 15 December 2025.

Round-trip from

C$ 277

One-way from

C$ 138

Popular in

March

Cheapest in

August

Average price

C$ 631
Spirit Airlines
  • Spirit Airlines
  • 27/1-31/1
  • 2 total stops
  • 20h 01m total
  • Detroit to San Antonio
Search Deals
Spirit Airlines
  • Spirit Airlines
  • 27/1
  • 1 total stop
  • 7h 37m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 15 December 2025.
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

Wed 28/1

8:45 a.m.-11:26 a.m.

Nonstop3h 41m

San Antonio

Tue 3/2

5:30 a.m.-9:30 a.m.

Nonstop3h 00m

C$ 448

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 12/1

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

Nonstop3h 30m

San Antonio

Sat 17/1

4:00 p.m.-8:03 p.m.

Nonstop3h 03m

C$ 498

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 23/1

8:45 a.m.-11:26 a.m.

Nonstop3h 41m

San Antonio

Tue 27/1

5:30 a.m.-9:30 a.m.

Nonstop3h 00m

C$ 498

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 5/2

8:45 a.m.-11:26 a.m.

Nonstop3h 41m

San Antonio

Tue 10/2

4:00 p.m.-8:03 p.m.

Nonstop3h 03m

C$ 498

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sun 4/1

8:34 a.m.-11:07 a.m.

Nonstop3h 33m

San Antonio

Sat 10/1

5:30 a.m.-9:30 a.m.

Nonstop3h 00m

C$ 548

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 26/5

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

Nonstop3h 17m

San Antonio

Sun 31/5

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

Nonstop3h 05m

C$ 549

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 25/2

8:42 a.m.-11:23 a.m.

Nonstop3h 41m

San Antonio

Sun 1/3

5:25 a.m.-9:21 a.m.

Nonstop2h 56m

C$ 549

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 27/2

8:42 a.m.-11:23 a.m.

Nonstop3h 41m

San Antonio

Mon 2/3

4:00 p.m.-8:01 p.m.

Nonstop3h 01m

C$ 549

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 27/2

8:42 a.m.-11:23 a.m.

Nonstop3h 41m

San Antonio

Sun 1/3

5:25 a.m.-9:21 a.m.

Nonstop2h 56m

C$ 549

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 24/2

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

Nonstop3h 30m

San Antonio

Sat 28/2

5:25 a.m.-9:21 a.m.

Nonstop2h 56m

C$ 549

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/12

Showing 1-10 of 20 results
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 12 December 2025.

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$ 135). Flying from Detroit to San Antonio in April is currently the most expensive (average of C$ 255). 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 15 December 2025.

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.

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 44% 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$ 172.

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: 4h 58m.

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 49m.

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 15 December 2025.
Read through reviews of airlines operating flights from Detroit to San Antonio, such as Delta and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews
Check prices

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews
Check prices

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,186 reviews
Delta
7.9
Good
8,008 reviews
Check prices

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 41m. 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 Korean Air (93%), KLM (89%) or Delta (85%) 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$ 135). Flying from Detroit to San Antonio in April is currently the most expensive (average of C$ 255). 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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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!

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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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