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Cheap flights from Detroit to San Antonio from C$ 253

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 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Detroit All airports to San Antonio are usually found in August or June, booked 65 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap 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 September 2025.

Round-trip from

C$ 303

One-way from

C$ 253

Popular in

March

Cheapest in

August

Average price

C$ 466

Good round-trip deal

C$ 264 or less
Spirit Airlines
  • Spirit Airlines
  • 11/12-14/12
  • Nonstop
  • 6h 21m total
  • Detroit to San Antonio
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Southwest
  • Southwest
  • 16/12
  • 2 total stops
  • 6h 45m total
  • Detroit to San Antonio
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Highest demand for flights based on searches. 16% potential increase in price (C$ 135 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Detroit (DTT) to San Antonio.
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Find flight deals from Detroit to San Antonio

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 September 2025.

Thu 11/129:30 a.m.DTW - SAT
Nonstop3h 17mSpirit Airlines
Sun 14/121:50 p.m.SAT - DTW
Nonstop3h 04mSpirit Airlines
Deal found 16/9C$ 303
Fri 12/127:58 a.m.DTW - SAT
1 stop8h 13mSpirit Airlines
Wed 17/124:16 p.m.SAT - DTW
1 stop7h 09mSpirit Airlines
Deal found 15/9C$ 348
Fri 12/121:27 p.m.DTW - SAT
2 stops25h 40mMultiple Airlines
Wed 17/124:16 p.m.SAT - DTW
1 stop7h 09mMultiple Airlines
Deal found 15/9C$ 381
Thu 13/118:30 p.m.DTW - SAT
Nonstop3h 27mDelta
Sun 23/115:15 a.m.SAT - DTW
Nonstop2h 55mDelta
Deal found 16/9C$ 494
Fri 19/122:45 p.m.DTW - SAT
1 stop4h 55mSouthwest
Tue 23/125:25 p.m.SAT - DTW
1 stop5h 55mSouthwest
Deal found 15/9C$ 506
Thu 13/119:05 a.m.DTW - SAT
1 stop5h 36mDelta
Mon 24/1111:50 a.m.SAT - DTW
Nonstop2h 58mDelta
Deal found 16/9C$ 508
Wed 12/116:10 a.m.DTW - SAT
2 stops6h 45mSouthwest
Mon 24/116:10 a.m.SAT - DTW
1 stop4h 40mSouthwest
Deal found 16/9C$ 513
Sun 2/118:30 p.m.DTW - SAT
Nonstop3h 12mDelta
Thu 6/115:25 a.m.SAT - DTW
Nonstop2h 59mDelta
Deal found 17/9C$ 519
Tue 28/106:40 a.m.DTW - SAT
2 stops6h 05mSouthwest
Fri 31/1012:30 p.m.SAT - DTW
2 stops6h 50mSouthwest
Deal found 16/9C$ 520
Fri 21/118:25 p.m.DTW - SAT
1 stop5h 00mSouthwest
Sun 23/116:10 a.m.SAT - DTW
1 stop4h 40mSouthwest
Deal found 15/9C$ 521
Mon 13/108:25 a.m.DTW - SAT
Nonstop3h 15mDelta
Sat 18/105:25 a.m.SAT - DTW
Nonstop2h 59mDelta
Deal found 16/9C$ 535

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 September 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 18/2

7:45 p.m.-10:19 p.m.

Nonstop3h 34m

San Antonio

Sun 22/2

4:00 p.m.-8:04 p.m.

Nonstop3h 04m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 15/11

10:30 a.m.-1:00 p.m.

Nonstop3h 30m

San Antonio

Tue 25/11

11:50 a.m.-3:48 p.m.

Nonstop2h 58m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 10/11

1:42 p.m.-4:02 p.m.

Nonstop3h 20m

San Antonio

Tue 25/11

5:15 a.m.-9:10 a.m.

Nonstop2h 55m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 25/2

7:45 p.m.-10:19 p.m.

Nonstop3h 34m

San Antonio

Sun 1/3

4:00 p.m.-8:04 p.m.

Nonstop3h 04m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 18/10

8:30 p.m.-10:42 p.m.

Nonstop3h 12m

San Antonio

Sun 19/10

5:25 a.m.-9:24 a.m.

Nonstop2h 59m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 8/12

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

Nonstop3h 30m

San Antonio

Sat 13/12

3:51 p.m.-7:54 p.m.

Nonstop3h 03m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 3/1

8:20 p.m.-10:48 p.m.

Nonstop3h 28m

San Antonio

Sat 10/1

4:00 p.m.-8:04 p.m.

Nonstop3h 04m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 13/11

8:30 p.m.-10:57 p.m.

Nonstop3h 27m

San Antonio

Mon 24/11

4:35 p.m.-8:37 p.m.

Nonstop3h 02m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 31/10

8:30 p.m.-10:42 p.m.

Nonstop3h 12m

San Antonio

Mon 3/11

4:35 p.m.-8:38 p.m.

Nonstop3h 03m

C$ 494

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sun 9/11

8:30 p.m.-10:57 p.m.

Nonstop3h 27m

San Antonio

Mon 24/11

4:35 p.m.-8:37 p.m.

Nonstop3h 02m

C$ 494

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

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 September 2025.

Booking 65 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$ 325). Flying from Detroit to San Antonio in May is currently the most expensive (average of C$ 443). 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 September 2025.

It’s typically best to fly out from Detroit to San Antonio at noon. Doing so could potentially save you 2% on the flight price compared to flying in the morning, 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 September 2025.

The most flights from DTT to SAT are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 40% 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: 5h 05m.

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 50m.

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 September 2025.
Read through reviews of airlines operating flights from Detroit to San Antonio, such as Southwest,Delta, andSpirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews
Check prices

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews
Check prices

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews
Check prices

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,242 reviews
Check prices

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • What airports do I use to fly from Detroit to San Antonio?

    San Antonio is the airport most travellers will use when flying to San Antonio from Detroit All airports. Booking flights from All airports (DTT) to San Antonio (SAT) should be relatively easy as there are 9 daily flights to San Antonio from 1 airline. 3h 34m is how long a flight from Detroit to San Antonio will take if you book a nonstop flight.

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

    Departing from Detroit to San Antonio will take you 3h 34m. Airlines will cover a distance of 1954 km. Generally, flights for this route are direct.

  • What is the cheapest airline to fly from Detroit to San Antonio round-trip?

    Flying on Delta is currently your cheapest option to San Antonio, with prices starting at C$ 397. Delta is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Detroit to San Antonio?

    Consider Aeromexico (92%), Spirit Airlines (88%) or Korean Air (86%) when booking your flight. These represent the most reliable airlines when flying from Detroit to San Antonio.

  • What are the cheapest flights from Detroit to San Antonio?

    On average you can expect to pay C$ 411 for a flight from Detroit to San Antonio. The cheapest flight overall is C$ 264 while the most popular route, (Detroit Metropolitan Wayne County - San Antonio) is currently priced at C$ 461.

  • 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$ 325). Flying from Detroit to San Antonio in May is currently the most expensive (average of C$ 443). 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.
Detroit to Dallas/Fort Worth flights
Detroit to Austin flights
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Detroit to George Bush Intcntl flights

Top airline flying from Detroit to San Antonio

Discover the top airline that operate flights from Detroit to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 397AverageC$ 532FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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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!

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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