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Cheap flights from Detroit to San Antonio from C$ 191

DTT — SAT
22 Oct — 29 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Detroit to San Antonio

Enter your travel dates to find the best prices.

Cheapest flights from Detroit to San Antonio

Sat 24/107:08 a.m. -
1 stop13h 18m
Mon 26/108:21 p.m. -
1 stop26h 30m
Deal found 21/9C$ 320
Wed 4/117:00 a.m. -
1 stop13h 25m
Sun 8/118:20 p.m. -
1 stop26h 31m
Deal found 20/9C$ 356
Tue 27/107:05 p.m. -
1 stop5h 15m
Tue 3/119:50 a.m. -
1 stop4h 40m
Deal found 17/9C$ 398
Wed 11/117:00 a.m. -
1 stop13h 25m
Sat 14/118:20 p.m. -
1 stop18h 14m
Deal found 19/9C$ 411
Thu 29/101:55 p.m. -
2 stops12h 30m
Tue 3/117:25 a.m. -
2 stops7h 05m
Deal found 17/9C$ 447
Sat 10/107:08 a.m. -
1 stop13h 18m
Mon 12/1010:03 a.m. -
1 stop24h 36m
Deal found 18/9C$ 457
Wed 4/117:00 a.m. -
1 stop13h 25m
Sun 8/119:25 a.m. -
2 stops22h 27m
Deal found 20/9C$ 465
Fri 23/108:35 p.m. -
1 stop23h 51m
Sun 25/1010:34 p.m. -
1 stop29h 26m
Deal found 20/9C$ 485
Fri 16/107:08 a.m. -
1 stop13h 18m
Sun 18/108:21 p.m. -
1 stop26h 34m
Deal found 20/9C$ 489

Find flight deals from Detroit to San Antonio

Round-trip from

C$ 320

One-way from

C$ 191

Popular in

May

Cheapest in

August

Average price

C$ 583
Frontier
  • Frontier
  • 24/10-26/10
  • 2 total stops
  • 39h 48m total
  • Detroit to San Antonio
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Frontier
  • Frontier
  • 2/11-31/12
  • 2 total stops
  • 21h 57m total
  • Detroit to San Antonio
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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 Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Mon 19/10

8:25 p.m.-11:55 p.m.

1 stop4h 30m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 265

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Thu 19/11

6:00 a.m.-12:15 p.m.

2 stops7h 15m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 272

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Sat 17/10

6:20 a.m.-12:05 p.m.

2 stops6h 45m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 306

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Tue 29/12

8:15 p.m.-12:35 a.m.

1 stop5h 20m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 308

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Wed 25/11

3:45 p.m.-11:55 p.m.

2 stops9h 10m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 315

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Tue 3/11

6:55 a.m.-1:15 p.m.

2 stops7h 20m

San Antonio

Sat 7/11

12:40 p.m.-10:05 p.m.

2 stops8h 25m

C$ 412
Quickest round-trip

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Wed 21/10

8:59 p.m.-11:07 p.m.

Nonstop3h 08m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 433

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Fri 19/3

8:55 p.m.-11:20 p.m.

Nonstop3h 25m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 433

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Thu 29/10

8:59 p.m.-11:07 p.m.

Nonstop3h 08m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 433

DetroitSan Antonio

DTW Detroit Metropolitan Wayne County - SAT San Antonio

DTWSAT

Detroit Metropolitan Wayne County

Sun 20/12

8:10 p.m.-10:38 p.m.

Nonstop3h 28m

San Antonio

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 433

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/9

Showing 1-10 of 21 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

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$ 593). Flying from Detroit to San Antonio in August is currently the most expensive (average of C$ 674). 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?

It’s typically best to fly out from Detroit to San Antonio in the evening. 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

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 (6 on average).

How much does it cost to fly round-trip from Detroit to San Antonio?

Airfare is below average for this route at the moment.
Detroit to San Antonio flights typically cost between C$ 519 and C$ 814 in October.
The cheapest round-trip price found within the last 5 days was C$ 320 on Frontier (24 Oct-26 Oct).

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

Booking 8 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.

Related info for your journey

  • How long is the flight from Detroit to San Antonio?

    Departing from Detroit to San Antonio will take you 3h 12m. 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 WestJet (92%), Korean Air (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, July is the cheapest month in which you can book a flight from Detroit to San Antonio (average of C$ 593). Flying from Detroit to San Antonio in August is currently the most expensive (average of C$ 674). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Detroit to San Antonio

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Detroit to George Bush Intcntl flights
Detroit to Hobby flights
Detroit to Austin flights

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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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