Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Detroit to San Antonio from C$ 144

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
13 Dec — 20 Dec1
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 65 days in advance, depart on a Monday 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 13 November 2025.

Round-trip from

C$ 265

One-way from

C$ 144

Popular in

January

Cheapest in

August

Average price

C$ 559
Frontier
  • Frontier
  • 11/12-18/12
  • 2 total stops
  • 35h 13m total
  • Detroit to San Antonio
Search Deals
Spirit Airlines
  • Spirit Airlines
  • 7/2
  • 1 total stop
  • 7h 01m 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$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 13 November 2025.

Thu 11/125:20 p.m.DTW - SAT
1 stop26h 40mFrontier
Thu 18/1210:18 a.m.SAT - DTW
1 stop8h 33mFrontier
Deal found 13/11C$ 265
Thu 11/1211:13 a.m.DTW - SAT
2 stops13h 13mMultiple Airlines
Thu 18/1210:18 a.m.SAT - DTW
1 stop8h 33mMultiple Airlines
Deal found 13/11C$ 346
Mon 22/128:46 p.m.DTW - SAT
1 stop13h 37mFrontier
Thu 1/16:45 a.m.SAT - DTW
1 stop8h 34mFrontier
Deal found 12/11C$ 347
Mon 22/128:46 p.m.DTW - SAT
1 stop13h 37mFrontier
Sat 3/11:33 p.m.SAT - DTW
1 stop6h 33mFrontier
Deal found 12/11C$ 433
Thu 11/127:59 a.m.DTW - SAT
2 stops30h 01mSpirit Airlines
Thu 18/1212:45 p.m.SAT - DTW
2 stops10h 14mSpirit Airlines
Deal found 13/11C$ 452
Wed 24/1212:20 p.m.DTW - SAT
1 stop12h 57mFrontier
Thu 1/12:09 p.m.SAT - DTW
1 stop5h 57mFrontier
Deal found 12/11C$ 537
Wed 24/128:35 a.m.DTW - SAT
Nonstop3h 33mDelta
Wed 31/125:20 a.m.SAT - DTW
Nonstop3h 01mDelta
Deal found 12/11C$ 559
Sat 20/128:20 p.m.DTW - SAT
Nonstop3h 29mDelta
Mon 5/16:22 p.m.SAT - DTW
2 stops12h 50mDelta
Deal found 12/11C$ 563
Tue 23/1212:20 p.m.DTW - SAT
1 stop12h 57mFrontier
Thu 1/16:45 a.m.SAT - DTW
1 stop8h 34mFrontier
Deal found 12/11C$ 577
Wed 17/1210:03 a.m.DTW - SAT
2 stops12h 00mDelta
Mon 5/16:22 p.m.SAT - DTW
2 stops12h 50mDelta
Deal found 12/11C$ 584
Thu 11/128:30 p.m.DTW - SAT
Nonstop3h 27mDelta
Thu 18/124:35 p.m.SAT - DTW
Nonstop3h 06mDelta
Deal found 13/11C$ 587

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 13 November 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 8/1

8:46 a.m.-11:29 a.m.

Nonstop3h 43m

San Antonio

Sun 11/1

4:00 p.m.-8:03 p.m.

Nonstop3h 03m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 18/12

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

Nonstop3h 27m

San Antonio

Thu 1/1

5:20 a.m.-9:21 a.m.

Nonstop3h 01m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sun 21/12

8:20 p.m.-10:49 p.m.

Nonstop3h 29m

San Antonio

Tue 6/1

5:30 a.m.-9:30 a.m.

Nonstop3h 00m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 17/12

8:25 a.m.-10:56 a.m.

Nonstop3h 31m

San Antonio

Thu 1/1

5:20 a.m.-9:21 a.m.

Nonstop3h 01m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 24/12

8:35 a.m.-11:08 a.m.

Nonstop3h 33m

San Antonio

Tue 6/1

4:00 p.m.-8:03 p.m.

Nonstop3h 03m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Wed 17/12

1:46 p.m.-4:04 p.m.

Nonstop3h 18m

San Antonio

Mon 22/12

5:20 a.m.-9:21 a.m.

Nonstop3h 01m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 20/12

8:20 p.m.-10:49 p.m.

Nonstop3h 29m

San Antonio

Tue 6/1

5:30 a.m.-9:30 a.m.

Nonstop3h 00m

C$ 559

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 20/12

8:20 p.m.-10:49 p.m.

Nonstop3h 29m

San Antonio

Mon 5/1

6:22 p.m.-8:12 a.m.

2 stops12h 50m

C$ 563

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 11/12

8:25 a.m.-10:56 a.m.

Nonstop3h 31m

San Antonio

Sun 14/12

12:46 p.m.-12:20 a.m.

1 stop10h 34m

C$ 573

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sun 21/12

8:20 p.m.-10:49 p.m.

Nonstop3h 29m

San Antonio

Wed 31/12

7:05 a.m.-2:42 p.m.

1 stop6h 37m

C$ 573

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 21 results
1
2
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

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 7 November 2025.

Booking 64 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$ 137). Flying from Detroit to San Antonio in April is currently the most expensive (average of C$ 262). 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 13 November 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?

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 13 November 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
4,236 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

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
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,236 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

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
8,139 reviews
Southwest
8.0
Very good
4,236 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

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.

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

    Departing from Detroit to San Antonio will take you 3h 43m. Airlines will cover a distance of 1954 km. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Detroit to San Antonio one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at C$ 240. Southwest flights start at C$ 301 while deals on Delta start at C$ 349 one-way.

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

    Consider Korean Air (96%), KLM (92%) or Delta (88%) 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$ 137). Flying from Detroit to San Antonio in April is currently the most expensive (average of C$ 262). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Detroit to San Antonio?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Detroit to San Antonio. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.