HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$80+ Cheap flights from Detroit to San Antonio (DTT - SAT)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SAT
Apr 27 — May 41
Mon 4/27
Mon 5/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Detroit to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
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 Friday or Thursday and return on a Saturday

Cheap 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 March 28, 2026.

This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:27 pm
DTW
-
SAT
1 stop16h 48m
Frontier
Wed 4/224:49 pm
SAT
-
DTW
1 stop27h 53m
Frontier
Deal found 3/23$317
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:27 pm
DTW
-
SAT
1 stop17h 42m
Multiple Airlines
Thu 4/306:00 am
SAT
-
DTW
2 stops13h 13m
Multiple Airlines
Deal found 3/23$326
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/39:00 am
DTW
-
SAT
1 stop9h 05m
Multiple Airlines
Fri 4/1010:22 am
SAT
-
DTW
2 stops11h 24m
Multiple Airlines
Deal found 3/23$327
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:05 am
DTW
-
SAT
1 stop8h 22m
Multiple Airlines
Fri 4/311:38 am
SAT
-
DTW
2 stops19h 24m
Multiple Airlines
Deal found 3/23$328
This Cheapflightsfares deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:05 am
DTW
-
SAT
1 stop8h 22m
Spirit Airlines
Tue 4/710:22 am
SAT
-
DTW
1 stop12h 37m
Spirit Airlines
Deal found 3/23$330
This Mytrip deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:05 am
DTW
-
SAT
1 stop8h 22m
Spirit Airlines
Wed 4/810:22 am
SAT
-
DTW
3 stops21h 24m
Spirit Airlines
Deal found 3/25$339
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:50 am
DTW
-
SAT
2 stops24h 34m
Multiple Airlines
Sun 4/192:12 pm
SAT
-
DTW
1 stop18h 12m
Multiple Airlines
Deal found 3/25$340
This Gotogate deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2610:27 pm
DTW
-
SAT
1 stop26h 50m
Multiple Airlines
Sun 3/291:22 pm
SAT
-
DTW
1 stop6h 11m
Multiple Airlines
Deal found 3/25$343
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:05 am
DTW
-
SAT
1 stop8h 22m
Spirit Airlines
Sun 4/51:22 pm
SAT
-
DTW
1 stop6h 11m
Spirit Airlines
Deal found 3/24$344
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/298:51 pm
DTW
-
SAT
1 stop16h 36m
Multiple Airlines
Sun 4/51:22 pm
SAT
-
DTW
2 stops17h 40m
Multiple Airlines
Deal found 3/23$345
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:25 pm
DTW
-
SAT
1 stop20h 52m
Multiple Airlines
Fri 5/87:54 pm
SAT
-
DTW
1 stop27h 05m
Multiple Airlines
Deal found 3/27$346

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 March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$317
(CheapOair)

One-way from

$80
(Priceline)

Popular in

March

Cheapest in

August

Average price

$542

Good round-trip deal

$359 or less

Good one-way deal

$288 or less
Provider with most accurate pricing for Detroit (DTT)-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-San Antonio flights.
Search Deals
From Detroit (DTT) to San Antonio
Search Deals
One-way flight from Detroit (DTT) to San Antonio
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Detroit (DTT) to San Antonio.
Search Deals
Price to beat on a one-way flight from Detroit (DTT) to San Antonio.
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 2,558,603 searches. Data last updated March 28, 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 5/1

8:30 am-10:54 am

Nonstop3h 24m

San Antonio

Wed 5/6

4:44 pm-8:45 pm

Nonstop3h 01m

$379

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 6/5

1:38 pm-3:52 pm

Nonstop3h 14m

San Antonio

Mon 6/8

5:10 am-9:17 am

Nonstop3h 07m

$379
Quickest round-trip

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 5/19

1:38 pm-3:52 pm

Nonstop3h 14m

San Antonio

Sun 5/24

5:20 am-9:25 am

Nonstop3h 05m

$379

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 6/2

8:35 am-10:54 am

Nonstop3h 19m

San Antonio

Sun 6/7

5:10 am-9:17 am

Nonstop3h 07m

$379

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Sat 5/2

8:48 pm-11:08 pm

Nonstop3h 20m

San Antonio

Thu 5/7

4:11 pm-12:58 am

1 stop7h 47m

$389

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 5/8

1:38 pm-3:52 pm

Nonstop3h 14m

San Antonio

Fri 5/15

4:11 pm-10:44 pm

1 stop5h 33m

$389

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Mon 6/15

5:45 pm-11:20 pm

1 stop6h 35m

San Antonio

Wed 6/17

4:25 pm-10:25 pm

1 stop5h 00m

$399

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Tue 4/21

5:20 am-11:21 am

1 stop7h 01m

San Antonio

Sat 4/25

5:10 am-9:10 am

Nonstop3h 00m

$439

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Fri 4/24

4:41 pm-10:11 pm

1 stop6h 30m

San Antonio

Fri 5/1

4:20 pm-11:39 pm

1 stop6h 19m

$449

DetroitSan Antonio

DTW - SAT

DTWSAT

Detroit Metropolitan Wayne County

Thu 4/16

5:20 am-9:46 am

1 stop5h 26m

San Antonio

Wed 4/22

11:50 am-3:50 pm

Nonstop3h 00m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Detroit to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to San Antonio in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 13, 2026.

To ensure you get the cheapest price possible for a flight from Detroit to San Antonio, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $98). Flying from Detroit to San Antonio in January is currently the most expensive (average of $236). 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 March 28, 2026.

One of the essential ways to save on airfare from Detroit to San Antonio is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.

What is the cheapest day to fly from Detroit to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Detroit to San Antonio. Price data was last updated on March 28, 2026.

Travelers seeking maximum savings on their Detroit to San Antonio flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 March 28, 2026.

The most flights from DTT to SAT are scheduled on a Friday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 1-stop round-trip flights from Detroit to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.

Orlando (MCO) – chosen by Cheapflights users on 50% of 1-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 $188.

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 Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 4h 50m.

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 1h 03m.

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 March 28, 2026.
Read reviews from past customers who have flown Southwest,Delta, andSpirit Airlines from Detroit to San Antonio. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,333 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,357 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Spirit Airlines
6.3
Okay
8,552 reviews
Southwest
8.0
Very good
4,333 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    To fly from Detroit to San Antonio, you need to book a flight from All airports (DTT) to San Antonio (SAT). Nonstop flights to San Antonio from Detroit All airports take 3h 09m on average. When it comes time to book airfare, you have a few options: there are 7 outbound flights from All airports to San Antonio offered by 5 different airlines.

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

    Airlines like Delta fly from Detroit to San Antonio in about 3h 24m. The time it takes to get you to your destination is usually consistent. Detroit and San Antonio are separated by a distance of 1214 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Detroit to San Antonio round-trip?

    According to our current data, Spirit Airlines ($86), Frontier ($188), and Delta ($326) offers the cheapest pricing from Detroit to San Antonio. Spirit Airlines is 77% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $67. Frontier flights start at $72 while deals on American Airlines start at $163 one-way.

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

    Consider Delta (75%), WestJet (75%) or Aeromexico (75%) 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 $409 for a flight from Detroit to San Antonio. The cheapest flight overall is $288 while the most popular route, (Detroit Metropolitan Wayne County - San Antonio) is currently priced at $239.

  • 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 $98). Flying from Detroit to San Antonio in January is currently the most expensive (average of $236). 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

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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.
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to Hobby flights
O'Hare Intl to Austin flights
Detroit to Dallas/Fort Worth flights
Midway to Dallas/Fort Worth flights
O'Hare Intl to George Bush Intcntl flights
Midway to Hobby flights
O'Hare Intl to Love Field flights
Detroit to Hobby flights
Detroit to George Bush Intcntl flights
Midway to Austin flights
O'Hare Intl to San Antonio flights
Grand Rapids to Dallas/Fort Worth flights
Detroit to Austin flights
Midway to Love Field flights
Midway to George Bush Intcntl flights
Detroit to San Antonio flights
O'Hare Intl to El Paso flights
Midway to San Antonio flights
South Bend to Dallas/Fort Worth flights
Grand Rapids to Hobby flights
Grand Rapids to George Bush Intcntl flights
Grand Rapids to Love Field flights
Traverse City to Dallas/Fort Worth flights
Flint to Dallas/Fort Worth flights
South Bend to Hobby flights
Grand Rapids to San Antonio flights
Kalamazoo to Dallas/Fort Worth flights
Midway to El Paso flights
Detroit to El Paso flights
Traverse City to Hobby flights
Flint to Hobby flights
Lansing to Dallas/Fort Worth flights
Flint to George Bush Intcntl flights
Bay City to Dallas/Fort Worth flights
South Bend to George Bush Intcntl flights
Grand Rapids to Austin flights
Lansing to Hobby flights
Traverse City to George Bush Intcntl flights
O'Hare Intl to Lubbock flights
O'Hare Intl to Midland flights
Detroit to McAllen flights
Kalamazoo to George Bush Intcntl flights
Grand Rapids to Harlingen flights

Top 5 airlines flying from Detroit to San Antonio

Discover the top 5 airlines 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 2,558,603 searches. Data last updated March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$86Average$227FlexibilityNo cancel feeOn-time65%
FrontierCheapest$188Average$257FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$326Average$428FlexibilityNo cancel feeOn-time63%
DeltaCheapest$329Average$425FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$338Average$398FlexibilityNo cancel feeOn-time71%

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.
Site
©2026 Cheapflights