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Cheap flights from Detroit to San Antonio from C$ 134

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 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
11 Jan — 18 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 12 December 2025.

Sat 20/128:46 p.m.DTW - SAT
1 stop13h 37mFrontier
Sat 3/11:33 p.m.SAT - DTW
1 stop6h 33mFrontier
Deal found 10/12C$ 459
Sun 21/1210:01 p.m.DTW - SAT
1 stop14h 20mFrontier
Sat 3/16:45 a.m.SAT - DTW
1 stop13h 21mFrontier
Deal found 11/12C$ 466
Wed 31/1212:52 p.m.DTW - SAT
Nonstop3h 19mDelta
Tue 6/15:30 a.m.SAT - DTW
Nonstop3h 00mDelta
Deal found 11/12C$ 549
Tue 30/123:39 p.m.DTW - SAT
2 stops21h 11mMultiple Airlines
Fri 2/15:56 p.m.SAT - DTW
1 stop13h 11mMultiple Airlines
Deal found 9/12C$ 572
Mon 15/126:00 a.m.DTW - SAT
1 stop9h 15mSpirit Airlines
Thu 18/1212:45 p.m.SAT - DTW
1 stop7h 47mSpirit Airlines
Deal found 10/12C$ 574
Tue 30/128:20 p.m.DTW - SAT
Nonstop3h 29mDelta
Wed 7/14:00 p.m.SAT - DTW
Nonstop3h 03mDelta
Deal found 11/12C$ 590
Sun 21/126:00 a.m.DTW - SAT
1 stop6h 50mMultiple Airlines
Sat 3/11:33 p.m.SAT - DTW
1 stop6h 33mMultiple Airlines
Deal found 11/12C$ 608
Fri 19/126:00 a.m.DTW - SAT
1 stop6h 50mSpirit Airlines
Wed 24/1212:45 p.m.SAT - DTW
1 stop7h 47mSpirit Airlines
Deal found 11/12C$ 622

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 12 December 2025.

Round-trip from

C$ 229

One-way from

C$ 134

Popular in

March

Cheapest in

August

Average price

C$ 632
Frontier
  • Frontier
  • 8/1-15/1
  • 2 total stops
  • 34h 26m total
  • Detroit to San Antonio
Search Deals
Frontier
  • Frontier
  • 25/1
  • 1 total stop
  • 27h 19m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 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 12 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

Thu 19/3

8:52 a.m.-11:25 a.m.

Nonstop3h 33m

San Antonio

Wed 25/3

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

Nonstop2h 57m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 11/3

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

Nonstop3h 22m

San Antonio

Sun 22/3

4:25 p.m.-8:26 p.m.

Nonstop3h 01m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 10/3

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

Nonstop3h 22m

San Antonio

Sat 28/3

4:25 p.m.-8:26 p.m.

Nonstop3h 01m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 10/3

8:52 a.m.-11:25 a.m.

Nonstop3h 33m

San Antonio

Fri 27/3

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

Nonstop2h 57m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 13/2

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

Nonstop3h 30m

San Antonio

Wed 18/2

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

Nonstop2h 56m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 17/4

12:40 p.m.-2:57 p.m.

Nonstop3h 17m

San Antonio

Mon 20/4

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

Nonstop3h 08m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 28/2

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

Nonstop3h 30m

San Antonio

Sat 14/3

4:25 p.m.-8:26 p.m.

Nonstop3h 01m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 17/3

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

Nonstop3h 22m

San Antonio

Wed 25/3

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

Nonstop2h 57m

C$ 550

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 18/2

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

Nonstop3h 30m

San Antonio

Sat 21/2

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

Nonstop2h 56m

C$ 550

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$ 550

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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 5 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 December is currently the most expensive (average of C$ 284). 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 12 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$ 173.

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 12 December 2025.
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
8,180 reviews
Check prices

Entertainment

5.0

Overall

6.3

Comfort

5.9

Boarding

6.6

Crew

7.1

Food

5.1

Reviews

1 / 20
4.0
Okay

Anonymous,Nov 2025

MCO - BWI

Sitting in exit seats without an upgrade should be allowed if nobody sitting in them what’s the big deal?
Spirit Airlines
6.3
Okay
8,180 reviews
Spirit Airlines
6.3
Okay
8,180 reviews
Check prices

Entertainment

5.0

Overall

6.3

Comfort

5.9

Boarding

6.6

Crew

7.1

Food

5.1

Reviews

1 / 20
4.0
Okay

Anonymous,Nov 2025

MCO - BWI

Sitting in exit seats without an upgrade should be allowed if nobody sitting in them what’s the big deal?

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 33m. 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 December is currently the most expensive (average of C$ 284). 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?

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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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