Travel with Axel,
get the best price.

Route overview: Boston to San Antonio (SAT) flight deals

Boston → San Antonio

Dec 29, 2026 · choose your return date

BOS → SAT1 adulteconomyOne way and round trips

30 flight options · 4 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 29, 2026 · One waySouthwest AirlinesUp to 1 stop each way$186.00 Dec 29, 2026 · One wayDelta Air LinesNonstop$234.00 Dec 29, 2026 – Dec 30, 2026 · 1 nightSouthwest AirlinesUp to 1 stop each way$372.00 Dec 29, 2026 – Dec 30, 2026 · 1 nightDelta Air LinesNonstop$468.00 Dec 29, 2026 – Dec 31, 2026 · 2 nightsSouthwest AirlinesUp to 1 stop each way$372.00 Dec 29, 2026 – Dec 31, 2026 · 2 nightsDelta Air LinesNonstop$468.00 Dec 29, 2026 – Jan 1, 2027 · 3 nightsSouthwest AirlinesUp to 1 stop each way$372.00 Dec 29, 2026 – Jan 1, 2027 · 3 nightsDelta Air LinesNonstop$468.00 Dec 29, 2026 – Jan 2, 2027 · 4 nightsSouthwest AirlinesUp to 1 stop each way$372.00 Dec 29, 2026 – Jan 2, 2027 · 4 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$402.00 Dec 29, 2026 – Jan 3, 2027 · 5 nightsSouthwest AirlinesUp to 1 stop each way$372.00 Dec 29, 2026 – Jan 3, 2027 · 5 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$384.00 Dec 29, 2026 – Jan 4, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 4, 2027 · 6 nightsDelta Air LinesNonstop$429.00 Dec 29, 2026 – Jan 5, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 5, 2027 · 7 nightsDelta Air LinesNonstop$429.00 Dec 29, 2026 – Jan 6, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 6, 2027 · 8 nightsDelta Air LinesNonstop$429.00 Dec 29, 2026 – Jan 7, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 7, 2027 · 9 nightsDelta Air LinesNonstop$429.00 Dec 29, 2026 – Jan 8, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 8, 2027 · 10 nightsDelta Air LinesNonstop$429.00 Dec 29, 2026 – Jan 9, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 9, 2027 · 11 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$368.00 Dec 29, 2026 – Jan 10, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 10, 2027 · 12 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$353.00 Dec 29, 2026 – Jan 11, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 11, 2027 · 13 nightsDelta Air LinesNonstop$429.00 Dec 29, 2026 – Jan 12, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$341.00 Dec 29, 2026 – Jan 12, 2027 · 14 nightsDelta Air LinesNonstop$429.00

Flights for your trip

  1. Tue, Dec 29 · One way

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Tue, Dec 29 · One way

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Tue, Dec 29 – Wed, Dec 30

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Tue, Dec 29 – Wed, Dec 30

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    1:50 pmSAT
    4h 24m
    Nonstop
    7:14 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Tue, Dec 29 – Thu, Dec 31

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Tue, Dec 29 – Thu, Dec 31

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    2:12 pmSAT
    4h 11m
    Nonstop
    7:23 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Tue, Dec 29 – Fri, Jan 1

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Tue, Dec 29 – Fri, Jan 1

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    2:12 pmSAT
    4h 11m
    Nonstop
    7:23 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Tue, Dec 29 – Sat, Jan 2

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:40 pmSAT
    6h
    BNA · 1h 20m
    12:40 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Tue, Dec 29 – Sat, Jan 2

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT
    United Airlines
    5:15 amSAT
    6h 20m
    IAH · 1h 22m
    12:35 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Tue, Dec 29 – Mon, Jan 4

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Tue, Dec 29 – Mon, Jan 4

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    2:12 pmSAT
    4h 11m
    Nonstop
    7:23 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Tue, Dec 29 – Tue, Jan 5

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Tue, Dec 29 – Tue, Jan 5

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    2:12 pmSAT
    4h 11m
    Nonstop
    7:23 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Tue, Dec 29 – Wed, Jan 6

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Tue, Dec 29 – Wed, Jan 6

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    1:50 pmSAT
    4h 24m
    Nonstop
    7:14 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Tue, Dec 29 – Fri, Jan 8

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Tue, Dec 29 – Fri, Jan 8

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    2:12 pmSAT
    4h 11m
    Nonstop
    7:23 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Tue, Dec 29 – Sat, Jan 9

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:40 pmSAT
    6h
    BNA · 1h 20m
    12:40 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Tue, Dec 29 – Sat, Jan 9

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT
    United Airlines
    5:15 amSAT
    6h 20m
    IAH · 1h 22m
    12:35 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Tue, Dec 29 – Sun, Jan 10

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:25 amSAT
    6h 5m
    DAL · 1h 25m
    12:30 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Tue, Dec 29 – Sun, Jan 10

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT
    Southwest Airlines
    5:25 amSAT
    6h 5m
    DAL · 1h 25m
    12:30 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Tue, Dec 29 – Tue, Jan 12

    Southwest Airlines
    5:20 amBOS
    6h 20m
    BNA · 1h 5m
    10:40 amSAT
    Southwest Airlines
    5:35 pmSAT
    6h 10m
    BWI · 1h 30m
    12:45 am+1BOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Tue, Dec 29 – Tue, Jan 12

    Delta Air Lines
    9:15 amBOS
    5h 2m
    Nonstop
    1:17 pmSAT
    Delta Air Lines
    2:12 pmSAT
    4h 11m
    Nonstop
    7:23 pmBOS

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

BOS ⇄ SAT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Delta Air Lines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeDec 28, 2026 · Return optionsDec 30, 2026 · Return optionsHotels in San Antonio with Axel
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-29 · one wayDelta Air LinesDL2652Axel-exclusive $234.002026-10-29T00:52:46Z
2026-12-29 · one waySouthwest AirlinesWN2723 + WN1120Axel-exclusive $186.002026-10-29T00:52:46Z
2026-12-29 → 2026-12-30Delta Air LinesDL2652 / DL816Axel-exclusive $468.002026-10-29T00:52:46Z
2026-12-29 → 2026-12-30Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $372.002026-10-29T00:52:46Z
2026-12-29 → 2026-12-31Delta Air LinesDL2652 / DL816Axel-exclusive $468.002026-10-29T00:52:46Z
2026-12-29 → 2026-12-31Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $372.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-01Delta Air LinesDL2652 / DL816Axel-exclusive $468.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-01Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $372.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-02Southwest AirlinesWN2723 + WN1120 / WN3764 + WN497Axel-exclusive $372.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-02American Airlines / United AirlinesAA4776 + AA1947 / UA469 + UA1977Axel-exclusive $402.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-03Southwest AirlinesWN2723 + WN1120 / WN1364 + WN800Axel-exclusive $372.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-03American Airlines / Southwest AirlinesAA4776 + AA1947 / WN1364 + WN800Axel-exclusive $384.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-04Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-04Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-05Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-05Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-06Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-06Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-07Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-07Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-08Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-08Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-09Southwest AirlinesWN2723 + WN1120 / WN3764 + WN497Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-09American Airlines / United AirlinesAA4776 + AA1947 / UA469 + UA1977Axel-exclusive $368.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-10Southwest AirlinesWN2723 + WN1120 / WN1364 + WN800Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-10American Airlines / Southwest AirlinesAA4776 + AA1947 / WN1364 + WN800Axel-exclusive $353.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-11Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-11Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-12Delta Air LinesDL2652 / DL816Axel-exclusive $429.002026-10-29T00:52:46Z
2026-12-29 → 2027-01-12Southwest AirlinesWN2723 + WN1120 / WN2724 + WN2752Axel-exclusive $341.002026-10-29T00:52:46Z

Route overview: Boston to San Antonio (SAT) flight deals

2026-12-29 · one way · Axel-exclusive $186.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.

2026-12-29 · one way · Axel-exclusive $234.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.

2026-12-29 → 2026-12-30 · Axel-exclusive $372.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-30 17:35:00 → BOS 2026-12-31 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-30 17:35:00 → BWI 2026-12-30 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-30 23:15:00 → BOS 2026-12-31 00:45:00.

2026-12-29 → 2026-12-30 · Axel-exclusive $468.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2026-12-30 13:50:00 → BOS 2026-12-30 19:14:00; nonstop; 264 minutes. Local airport times.

2026-12-29 → 2026-12-31 · Axel-exclusive $372.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-31 17:35:00 → BOS 2027-01-01 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-31 17:35:00 → BWI 2026-12-31 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-31 23:15:00 → BOS 2027-01-01 00:45:00.

2026-12-29 → 2026-12-31 · Axel-exclusive $468.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2026-12-31 14:12:00 → BOS 2026-12-31 19:23:00; nonstop; 251 minutes. Local airport times.

2026-12-29 → 2027-01-01 · Axel-exclusive $372.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-01 17:35:00 → BOS 2027-01-02 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-01 17:35:00 → BWI 2027-01-01 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-01 23:15:00 → BOS 2027-01-02 00:45:00.

2026-12-29 → 2027-01-01 · Axel-exclusive $468.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2027-01-01 14:12:00 → BOS 2027-01-01 19:23:00; nonstop; 251 minutes. Local airport times.

2026-12-29 → 2027-01-02 · Axel-exclusive $372.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN3764 / WN497: SAT 2027-01-02 17:40:00 → BOS 2027-01-03 00:40:00; 1 stop(s) via BNA; 360 minutes. Local airport times.
    • WN3764: SAT 2027-01-02 17:40:00 → BNA 2027-01-02 19:50:00; layover at BNA: 80 minutes.
    • WN497: BNA 2027-01-02 21:10:00 → BOS 2027-01-03 00:40:00.

2026-12-29 → 2027-01-02 · Axel-exclusive $402.00

  • American Airlines AA4776 / AA1947: BOS 2026-12-29 14:27:00 → SAT 2026-12-29 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-29 14:27:00 → DCA 2026-12-29 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-29 17:30:00 → SAT 2026-12-29 20:30:00.
  • United Airlines UA469 / UA1977: SAT 2027-01-02 05:15:00 → BOS 2027-01-02 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2027-01-02 05:15:00 → IAH 2027-01-02 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2027-01-02 07:45:00 → BOS 2027-01-02 12:35:00.

2026-12-29 → 2027-01-04 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-04 17:35:00 → BOS 2027-01-05 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-04 17:35:00 → BWI 2027-01-04 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-04 23:15:00 → BOS 2027-01-05 00:45:00.

2026-12-29 → 2027-01-04 · Axel-exclusive $429.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2027-01-04 14:12:00 → BOS 2027-01-04 19:23:00; nonstop; 251 minutes. Local airport times.

2026-12-29 → 2027-01-05 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-05 17:35:00 → BOS 2027-01-06 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-05 17:35:00 → BWI 2027-01-05 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-05 23:15:00 → BOS 2027-01-06 00:45:00.

2026-12-29 → 2027-01-05 · Axel-exclusive $429.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2027-01-05 14:12:00 → BOS 2027-01-05 19:23:00; nonstop; 251 minutes. Local airport times.

2026-12-29 → 2027-01-06 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-06 17:35:00 → BOS 2027-01-07 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-06 17:35:00 → BWI 2027-01-06 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-06 23:15:00 → BOS 2027-01-07 00:45:00.

2026-12-29 → 2027-01-06 · Axel-exclusive $429.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2027-01-06 13:50:00 → BOS 2027-01-06 19:14:00; nonstop; 264 minutes. Local airport times.

2026-12-29 → 2027-01-08 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-08 17:35:00 → BOS 2027-01-09 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-08 17:35:00 → BWI 2027-01-08 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-08 23:15:00 → BOS 2027-01-09 00:45:00.

2026-12-29 → 2027-01-08 · Axel-exclusive $429.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2027-01-08 14:12:00 → BOS 2027-01-08 19:23:00; nonstop; 251 minutes. Local airport times.

2026-12-29 → 2027-01-09 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN3764 / WN497: SAT 2027-01-09 17:40:00 → BOS 2027-01-10 00:40:00; 1 stop(s) via BNA; 360 minutes. Local airport times.
    • WN3764: SAT 2027-01-09 17:40:00 → BNA 2027-01-09 19:50:00; layover at BNA: 80 minutes.
    • WN497: BNA 2027-01-09 21:10:00 → BOS 2027-01-10 00:40:00.

2026-12-29 → 2027-01-09 · Axel-exclusive $368.00

  • American Airlines AA4776 / AA1947: BOS 2026-12-29 14:27:00 → SAT 2026-12-29 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-29 14:27:00 → DCA 2026-12-29 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-29 17:30:00 → SAT 2026-12-29 20:30:00.
  • United Airlines UA469 / UA1977: SAT 2027-01-09 05:15:00 → BOS 2027-01-09 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2027-01-09 05:15:00 → IAH 2027-01-09 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2027-01-09 07:45:00 → BOS 2027-01-09 12:35:00.

2026-12-29 → 2027-01-10 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN1364 / WN800: SAT 2027-01-10 05:25:00 → BOS 2027-01-10 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2027-01-10 05:25:00 → DAL 2027-01-10 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2027-01-10 08:00:00 → BOS 2027-01-10 12:30:00.

2026-12-29 → 2027-01-10 · Axel-exclusive $353.00

  • American Airlines AA4776 / AA1947: BOS 2026-12-29 14:27:00 → SAT 2026-12-29 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-29 14:27:00 → DCA 2026-12-29 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-29 17:30:00 → SAT 2026-12-29 20:30:00.
  • Southwest Airlines WN1364 / WN800: SAT 2027-01-10 05:25:00 → BOS 2027-01-10 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2027-01-10 05:25:00 → DAL 2027-01-10 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2027-01-10 08:00:00 → BOS 2027-01-10 12:30:00.

2026-12-29 → 2027-01-12 · Axel-exclusive $341.00

  • Southwest Airlines WN2723 / WN1120: BOS 2026-12-29 05:20:00 → SAT 2026-12-29 10:40:00; 1 stop(s) via BNA; 380 minutes. Local airport times.
    • WN2723: BOS 2026-12-29 05:20:00 → BNA 2026-12-29 07:10:00; layover at BNA: 65 minutes.
    • WN1120: BNA 2026-12-29 08:15:00 → SAT 2026-12-29 10:40:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-12 17:35:00 → BOS 2027-01-13 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-12 17:35:00 → BWI 2027-01-12 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-12 23:15:00 → BOS 2027-01-13 00:45:00.

2026-12-29 → 2027-01-12 · Axel-exclusive $429.00

  • Delta Air Lines DL2652: BOS 2026-12-29 09:15:00 → SAT 2026-12-29 13:17:00; nonstop; 302 minutes. Local airport times.
  • Delta Air Lines DL816: SAT 2027-01-12 14:12:00 → BOS 2027-01-12 19:23:00; nonstop; 251 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Boston (BOS) to San Antonio (SAT) · Dec 29, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Boston to San Antonio (SAT) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.