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Cheap flights from Detroit to San Antonio from C$ 118

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
17 May — 24 May1
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 Thursday or Wednesday 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 17 April 2026.

Mon 20/410:27 p.m.
DTW
-
SAT
1 stop17h 42m
Frontier
Sat 25/44:04 p.m.
SAT
-
DTW
1 stop17h 54m
Frontier
Deal found 15/4C$ 510
Fri 15/51:38 p.m.
DTW
-
SAT
Nonstop3h 14m
Delta
Wed 20/54:15 p.m.
SAT
-
DTW
Nonstop3h 06m
Delta
Deal found 15/4C$ 520
Thu 30/41:58 p.m.
DTW
-
SAT
2 stops10h 53m
Spirit Airlines
Fri 1/56:00 a.m.
SAT
-
DTW
1 stop16h 59m
Spirit Airlines
Deal found 13/4C$ 532
Tue 19/57:01 a.m.
DTW
-
SAT
1 stop5h 44m
Delta
Sun 24/55:20 a.m.
SAT
-
DTW
Nonstop3h 05m
Delta
Deal found 16/4C$ 534
Wed 30/127:45 p.m.
DTW
-
SAT
1 stop5h 43m
Delta
Tue 12/16:15 p.m.
SAT
-
DTW
1 stop5h 29m
Delta
Deal found 16/4C$ 547
Fri 29/56:00 a.m.
DTW
-
SAT
2 stops6h 25m
Southwest
Sun 28/64:20 p.m.
SAT
-
DTW
1 stop5h 50m
Southwest
Deal found 12/4C$ 554
Fri 15/56:00 a.m.
DTW
-
SAT
2 stops6h 25m
Southwest
Wed 20/51:40 p.m.
SAT
-
DTW
2 stops6h 55m
Southwest
Deal found 15/4C$ 561
Fri 25/92:40 p.m.
DTW
-
SAT
2 stops9h 25m
Southwest
Mon 28/95:10 a.m.
SAT
-
DTW
2 stops14h 40m
Southwest
Deal found 14/4C$ 569
Mon 25/56:30 a.m.
DTW
-
SAT
2 stops10h 46m
Spirit Airlines
Thu 28/55:26 p.m.
SAT
-
DTW
3 stops26h 29m
Spirit Airlines
Deal found 15/4C$ 572
Fri 15/57:01 a.m.
DTW
-
SAT
1 stop5h 44m
Delta
Sun 17/54:15 p.m.
SAT
-
DTW
Nonstop3h 06m
Delta
Deal found 13/4C$ 575
Sat 9/58:35 a.m.
DTW
-
SAT
2 stops7h 15m
Southwest
Sat 16/59:15 a.m.
SAT
-
DTW
2 stops7h 20m
Southwest
Deal found 14/4C$ 587

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 17 April 2026.

Round-trip from

C$ 510

One-way from

C$ 118

Popular in

February

Cheapest in

August

Average price

C$ 547
Spirit Airlines
  • Spirit Airlines
  • 25/5-28/5
  • 4 total stops
  • 32h 57m total
  • Detroit to San Antonio
Search Deals
Frontier
  • Frontier
  • 5/5
  • 1 total stop
  • 12h 04m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 17 April 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

Thu 17/9

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

Nonstop3h 17m

San Antonio

Tue 22/9

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

Nonstop3h 08m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 16/9

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

Nonstop3h 21m

San Antonio

Tue 22/9

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

Nonstop3h 05m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 13/8

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

Nonstop3h 17m

San Antonio

Mon 17/8

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

Nonstop3h 05m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 18/9

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

Nonstop3h 17m

San Antonio

Wed 23/9

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

Nonstop3h 05m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 10/9

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

Nonstop3h 21m

San Antonio

Mon 14/9

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

Nonstop3h 08m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sun 7/6

8:25 a.m.-10:35 a.m.

Nonstop3h 10m

San Antonio

Sat 13/6

3:00 p.m.-7:12 p.m.

Nonstop3h 12m

C$ 520
Quickest round-trip

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 13/5

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

Nonstop3h 15m

San Antonio

Wed 20/5

4:15 p.m.-8:21 p.m.

Nonstop3h 06m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 15/9

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

Nonstop3h 17m

San Antonio

Fri 25/9

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

Nonstop3h 08m

C$ 520

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 2/6

7:01 a.m.-11:45 a.m.

1 stop5h 44m

San Antonio

Tue 16/6

11:30 a.m.-3:41 p.m.

Nonstop3h 11m

C$ 534

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 15/9

6:30 a.m.-11:10 a.m.

1 stop5h 40m

San Antonio

Mon 21/9

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

Nonstop3h 08m

C$ 534

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

Showing 1-10 of 23 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

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 10 April 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, July is the cheapest month in which you can book a flight from Detroit to San Antonio (average of C$ 97). Flying from Detroit to San Antonio in January is currently the most expensive (average of C$ 298). 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 17 April 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 17 April 2026.

The most flights from DTT to SAT are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 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 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$ 229.

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 17 April 2026.
Read through reviews of airlines operating flights from Detroit to San Antonio, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,409 reviews
Check prices

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

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
8,409 reviews
Delta
7.9
Good
8,409 reviews
Check prices

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Entertainment

7.8

Crew

8.5

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 17m. 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 (100%), Delta (91%) or WestJet (91%) 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, July is the cheapest month in which you can book a flight from Detroit to San Antonio (average of C$ 97). Flying from Detroit to San Antonio in January is currently the most expensive (average of C$ 298). 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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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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