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Flights from Detroit to San Antonio

Search for direct flights from Detroit to San Antonio in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$274, and round-trip direct flights start at US$376.

      • Cheapest nonstop
        DTW 20:12
        3h 15m
        Nonstop
        SAT 22:27
        Detroit - San Antonio | Wed, Jun 17 | Delta Air Lines
        SAT 11:30
        3h 11m
        Nonstop
        DTW 15:41
        San Antonio - Detroit | Sun, Jun 21 | Delta Air Lines
        US$376 US$427
        12% off
        12% off
        US$427 US$376
      • DTW 20:10
        3h 11m
        Nonstop
        SAT 22:21
        Detroit - San Antonio | Sun, Jul 5 | Delta Air Lines
        SAT 05:15
        3h 7m
        Nonstop
        DTW 09:22
        San Antonio - Detroit | Sat, Jul 11 | Delta Air Lines
        US$385 US$427
        10% off
        10% off
        US$427 US$385
      • DTW 08:25
        3h 10m
        Nonstop
        SAT 10:35
        Detroit - San Antonio | Mon, Jul 6 | Delta Air Lines
        SAT 05:15
        3h 7m
        Nonstop
        DTW 09:22
        San Antonio - Detroit | Fri, Jul 10 | Delta Air Lines
        US$387 US$427
        9% off
        9% off
        US$427 US$387
      • DTW 12:30
        28h 7m
        1 stop
        SAT 15:37
        Detroit - San Antonio | Tue, Jun 23 | Frontier Airlines
        SAT 19:51
        15h 55m
        1 stop
        DTW 12:46
        San Antonio - Detroit | Sat, Jun 27 | Frontier Airlines
        US$344
        19% off
        US$427 US$344
      • DTW 13:31
        6h 25m
        1 stop
        SAT 18:56
        Detroit - San Antonio | Sun, Jun 28 | Frontier Airlines
        SAT 16:22
        16h 52m
        1 stop
        DTW 10:14
        San Antonio - Detroit | Wed, Jul 1 | Frontier Airlines
        US$352
        18% off
        US$427 US$352
      • DTW 13:20
        6h 39m
        1 stop
        SAT 18:59
        Detroit - San Antonio | Wed, Jun 17 | Frontier Airlines
        SAT 07:02
        10h 56m
        1 stop
        DTW 18:58
        San Antonio - Detroit | Sun, Jun 21 | American Airlines
        US$357
        16% off
        US$427 US$357
      • DTW 13:31
        6h 25m
        1 stop
        SAT 18:56
        Detroit - San Antonio | Sun, Jul 5 | Frontier Airlines
        SAT 19:51
        27h 8m
        1 stop
        DTW 23:59
        San Antonio - Detroit | Sat, Jul 11 | Frontier Airlines
        US$398
        7% off
        US$427 US$398
      • DTW 06:00
        7h 12m
        1 stop
        SAT 12:12
        Detroit - San Antonio | Sun, Jul 5 | United Airlines
        SAT 06:40
        5h 47m
        1 stop
        DTW 13:27
        San Antonio - Detroit | Sat, Jul 11 | United Airlines
        US$400
        6% off
        US$427 US$400
      • DTW 18:37
        5h 17m
        1 stop
        SAT 22:54
        Detroit - San Antonio | Tue, Jun 9 | United Airlines
        SAT 16:18
        5h 6m
        1 stop
        DTW 22:24
        San Antonio - Detroit | Thu, Jun 11 | United Airlines
        US$401
        6% off
        US$427 US$401
      • DTT 13:00
        17h 25m
        1 stop
        SAT 14:00
        Detroit - San Antonio | Wed, Jun 10 | Normal Airline
        SAT 15:00
        6h
        Nonstop
        DTT 16:00
        San Antonio - Detroit | Fri, Jun 12 | Normal Airline
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      • Cheapest nonstop
        DTW 20:12
        3h 15m
        Nonstop
        SAT 22:27
        Detroit - San Antonio | Wed, Jun 17 | Delta Air Lines
        US$274 US$350
        22% off
        22% off
        US$350 US$274
      • DTW 20:10
        3h 11m
        Nonstop
        SAT 22:21
        Detroit - San Antonio | Sun, Jun 28 | Delta Air Lines
        US$326 US$350
        7% off
        7% off
        US$350 US$326
      • DTW 20:12
        3h 15m
        Nonstop
        SAT 22:27
        Detroit - San Antonio | Tue, Jun 9 | Delta Air Lines
        US$329 US$350
        6% off
        6% off
        US$350 US$329
      • DTW 13:31
        6h 25m
        1 stop
        SAT 18:56
        Detroit - San Antonio | Sun, Jun 28 | Frontier Airlines
        US$191
        45% off
        US$350 US$191
      • DTW 13:20
        6h 39m
        1 stop
        SAT 18:59
        Detroit - San Antonio | Mon, Jun 15 | Frontier Airlines
        US$211
        40% off
        US$350 US$211
      • DTW 13:20
        6h 39m
        1 stop
        SAT 18:59
        Detroit - San Antonio | Wed, Jun 10 | Frontier Airlines
        US$212
        39% off
        US$350 US$212
      • DTW 07:55
        12h 4m
        1 stop
        SAT 18:59
        Detroit - San Antonio | Wed, Jun 17 | Frontier Airlines
        US$232
        34% off
        US$350 US$232
      • DTW 07:46
        8h 10m
        1 stop
        SAT 14:56
        Detroit - San Antonio | Wed, Jun 17 | American Airlines
        US$286
        18% off
        US$350 US$286
      • DTW 08:50
        8h 13m
        1 stop
        SAT 16:03
        Detroit - San Antonio | Tue, Jun 9 | United Airlines
        US$327
        7% off
        US$350 US$327
      • DTT 13:00
        17h 25m
        1 stop
        SAT 14:00
        Detroit - San Antonio | Wed, Jun 10 | Normal Airline
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Displayed flight fares from Detroit to San Antonio are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Detroit to San Antonio Flight Details

The distance between Detroit and San Antonio is about 1,981.84 km. The average flying time from Detroit to San Antonio is around 3 hours 20 minutes. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is September.

Cheapest one-way flight priceUS$191
Cheapest return ticket priceUS$344
Cheapest monthSeptember
Peak season for travelJanuary
Flight distance1,981.84 km
Average flight time3 hours 20 minutes
Flight statistics for the Detroit–San Antonio route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Detroit to San Antonio (DTT-SAT)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$191 on Cheapest nonstop routes (e.g. DTW to SAT on Sun, Jun 28), while Frontier Airlines offers Cheapest nonstop round-trips from US$344 departing on Tue, Jun 23 and returning on Sat, Jun 27.
  • It takes about 3 hours 20 minutes to fly from Detroit to San Antonio.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Detroit to San Antonio is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Detroit to San Antonio, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Jun 28, with one-way flights priced at just US$191.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Antonio travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Detroit to San Antonio is September, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Detroit to San Antonio on June 13, 2026 with Frontier Airlines, with prices starting at US$253.
  • The time difference between San Antonio and Detroit is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Detroit to San Antonio

Which airline operates the most flights from Detroit to San Antonio?

Total flights from Detroit to San Antonio across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, WestJet/Delta Air Lines operates the most frequent flights from Detroit to San Antonio, with 21 flights per week.

2
8
15
21
WestJet
21
WestJet
Delta Air Lines
21
Delta Air Lines
KLM
14
KLM
Aeromexico
12
Aeromexico
Air France
10
Air France
Virgin Atlantic
8
Virgin Atlantic

How many flights fly from Detroit to San Antonio daily?

The data is based on the flight numbers for each day of the week from Detroit to San Antonio within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Detroit to San Antonio is the highest on Friday and the lowest on Saturday.

66
55
43
32
Highest
52
Mon
48
Tue
53
Wed
53
Thu
66
Fri
43
Sat
58
Sun

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.