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Cheap flights from Detroit to San Antonio from C$ 276

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 29/6. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
24 Jun — 1 Jul1
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 September, booked 83 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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 25 May 2026.

Fri 10/78:25 a.m.
DTW
-
SAT
Nonstop3h 09m
Delta
Thu 16/74:00 p.m.
SAT
-
DTW
Nonstop3h 09m
Delta
Deal found 20/5C$ 524
Wed 30/126:00 p.m.
DTW
-
SAT
1 stop6h 08m
United Airlines
Tue 12/16:40 a.m.
SAT
-
DTW
1 stop5h 20m
United Airlines
Deal found 20/5C$ 551
Tue 7/77:05 a.m.
DTW
-
SAT
2 stops6h 40m
Southwest
Fri 10/75:25 p.m.
SAT
-
DTW
1 stop5h 40m
Southwest
Deal found 21/5C$ 558
Wed 1/71:25 p.m.
DTW
-
SAT
2 stops6h 55m
Southwest
Tue 7/72:40 p.m.
SAT
-
DTW
2 stops6h 30m
Southwest
Deal found 21/5C$ 565
Thu 22/108:30 a.m.
DTW
-
SAT
2 stops8h 20m
Southwest
Mon 26/107:25 a.m.
SAT
-
DTW
1 stop4h 20m
Southwest
Deal found 21/5C$ 584
Mon 5/103:15 p.m.
DTW
-
SAT
2 stops9h 35m
Southwest
Mon 12/107:25 a.m.
SAT
-
DTW
1 stop4h 20m
Southwest
Deal found 22/5C$ 589
Mon 24/82:40 p.m.
DTW
-
SAT
2 stops9h 25m
Southwest
Sat 29/89:45 a.m.
SAT
-
DTW
2 stops7h 45m
Southwest
Deal found 21/5C$ 591
Fri 19/61:38 p.m.
DTW
-
SAT
Nonstop3h 11m
Delta
Sun 21/65:15 a.m.
SAT
-
DTW
Nonstop3h 07m
Delta
Deal found 21/5C$ 593
Tue 29/93:35 p.m.
DTW
-
SAT
2 stops5h 55m
Southwest
Sat 3/1010:05 a.m.
SAT
-
DTW
2 stops8h 45m
Southwest
Deal found 22/5C$ 595
Wed 15/78:50 a.m.
DTW
-
SAT
2 stops7h 49m
United Airlines
Sun 19/75:57 p.m.
SAT
-
DTW
1 stop4h 47m
United Airlines
Deal found 20/5C$ 598
Thu 18/67:25 a.m.
DTW
-
SAT
1 stop7h 10m
Delta
Sun 21/65:15 a.m.
SAT
-
DTW
Nonstop3h 07m
Delta
Deal found 20/5C$ 607

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 25 May 2026.

Round-trip from

C$ 524

One-way from

C$ 276

Popular in

May

Cheapest in

August

Average price

C$ 688
Delta
  • Delta
  • 24/8-29/8
  • Nonstop
  • 6h 14m total
  • Detroit to San Antonio
Search Deals
Southwest
  • Southwest
  • 29/6
  • 1 total stop
  • 8h 00m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 40 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 May 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 25 May 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

Fri 17/7

8:25 a.m.-10:34 a.m.

Nonstop3h 09m

San Antonio

Mon 20/7

11:29 a.m.-3:35 p.m.

Nonstop3h 06m

C$ 524
Quickest round-trip

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 25/9

1:44 p.m.-3:52 p.m.

Nonstop3h 08m

San Antonio

Sun 4/10

5:15 a.m.-9:15 a.m.

Nonstop3h 00m

C$ 524

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 18/9

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

Nonstop3h 21m

San Antonio

Mon 21/9

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

Nonstop3h 05m

C$ 524

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 10/7

8:25 a.m.-10:34 a.m.

Nonstop3h 09m

San Antonio

Wed 15/7

5:15 a.m.-9:20 a.m.

Nonstop3h 05m

C$ 524

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 25/9

8:40 p.m.-10:46 p.m.

Nonstop3h 06m

San Antonio

Mon 28/9

11:29 a.m.-3:34 p.m.

Nonstop3h 05m

C$ 524

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 10/7

5:20 a.m.-9:43 a.m.

1 stop5h 23m

San Antonio

Sun 12/7

11:29 a.m.-3:35 p.m.

Nonstop3h 06m

C$ 537

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 13/8

8:25 a.m.-10:34 a.m.

Nonstop3h 09m

San Antonio

Mon 17/8

2:22 p.m.-10:41 p.m.

1 stop7h 19m

C$ 537

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 19/6

8:10 p.m.-10:21 p.m.

Nonstop3h 11m

San Antonio

Fri 26/6

6:19 p.m.-12:59 a.m.

1 stop5h 40m

C$ 537

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 22/10

5:20 a.m.-9:54 a.m.

1 stop5h 34m

San Antonio

Mon 26/10

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

Nonstop3h 00m

C$ 537

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 30/9

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

Nonstop3h 17m

San Antonio

Sat 3/10

8:00 a.m.-5:12 p.m.

1 stop8h 12m

C$ 537

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/5

Showing 1-10 of 24 resultsSorted by cheapest first
1
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3

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

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$ 98). Flying from Detroit to San Antonio in January is currently the most expensive (average of C$ 300). 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 25 May 2026.

It’s typically best to fly out from Detroit to San Antonio in the morning. Doing so could potentially save you 58% 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 25 May 2026.

The most flights from DTT to SAT are scheduled on a Friday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 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$ 230.

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.

How far ahead should I book a flight from Detroit to San Antonio?

Booking 76 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.

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 25 May 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
8,434 reviews
Check prices

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,434 reviews
Delta
7.9
Good
8,434 reviews
Check prices

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 09m. 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 (83%), WestJet (83%) or Delta (83%) 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$ 98). Flying from Detroit to San Antonio in January is currently the most expensive (average of C$ 300). 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.

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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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