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

Boston → San Antonio

Dec 27, 2026 · choose your return date

BOS → SAT1 adulteconomyOne way and round trips

30 flight options · 3 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 27, 2026 · One waySouthwest AirlinesUp to 1 stop each way$193.75 Dec 27, 2026 · One wayAmerican AirlinesUp to 1 stop each way$206.25 Dec 27, 2026 – Dec 28, 2026 · 1 nightSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Dec 28, 2026 · 1 nightAmerican Airlines / Southwest AirlinesUp to 1 stop each way$392.25 Dec 27, 2026 – Dec 29, 2026 · 2 nightsSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Dec 29, 2026 · 2 nightsUnited AirlinesUp to 1 stop each way$416.50 Dec 27, 2026 – Dec 30, 2026 · 3 nightsSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Dec 30, 2026 · 3 nightsUnited AirlinesUp to 1 stop each way$416.50 Dec 27, 2026 – Dec 31, 2026 · 4 nightsSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Dec 31, 2026 · 4 nightsUnited AirlinesUp to 1 stop each way$416.50 Dec 27, 2026 – Jan 1, 2027 · 5 nightsSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Jan 1, 2027 · 5 nightsUnited AirlinesUp to 1 stop each way$416.50 Dec 27, 2026 – Jan 2, 2027 · 6 nightsSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Jan 2, 2027 · 6 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$410.25 Dec 27, 2026 – Jan 3, 2027 · 7 nightsSouthwest AirlinesUp to 1 stop each way$379.75 Dec 27, 2026 – Jan 3, 2027 · 7 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$392.25 Dec 27, 2026 – Jan 4, 2027 · 8 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 4, 2027 · 8 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$361.25 Dec 27, 2026 – Jan 5, 2027 · 9 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 5, 2027 · 9 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 27, 2026 – Jan 6, 2027 · 10 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 6, 2027 · 10 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 27, 2026 – Jan 7, 2027 · 11 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 7, 2027 · 11 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 27, 2026 – Jan 8, 2027 · 12 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 8, 2027 · 12 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 27, 2026 – Jan 9, 2027 · 13 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 9, 2027 · 13 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$376.25 Dec 27, 2026 – Jan 10, 2027 · 14 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 27, 2026 – Jan 10, 2027 · 14 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$361.25

Flights for your trip

  1. Sun, Dec 27 · One way

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 amSAT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sun, Dec 27 · One way

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sun, Dec 27 – Mon, Dec 28

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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. Sun, Dec 27 – Mon, Dec 28

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT
    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.

  5. Sun, Dec 27 – Tue, Dec 29

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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. Sun, Dec 27 – Tue, Dec 29

    United Airlines
    9:00 amBOS
    7h 7m
    EWR · 1h 14m
    3:07 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.

  7. Sun, Dec 27 – Wed, Dec 30

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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. Sun, Dec 27 – Wed, Dec 30

    United Airlines
    9:00 amBOS
    7h 7m
    EWR · 1h 14m
    3:07 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.

  9. Sun, Dec 27 – Thu, Dec 31

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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.

  10. Sun, Dec 27 – Thu, Dec 31

    United Airlines
    9:00 amBOS
    7h 7m
    EWR · 1h 14m
    3:07 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. Sun, Dec 27 – Sat, Jan 2

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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.

  12. Sun, Dec 27 – 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.

  13. Sun, Dec 27 – Sun, Jan 3

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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.

  14. Sun, Dec 27 – Sun, Jan 3

    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.

  15. Sun, Dec 27 – Mon, Jan 4

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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. Sun, Dec 27 – Mon, Jan 4

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT
    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.

  17. Sun, Dec 27 – Wed, Jan 6

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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. Sun, Dec 27 – Wed, Jan 6

    United Airlines
    9:00 amBOS
    7h 7m
    EWR · 1h 14m
    3:07 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.

  19. Sun, Dec 27 – Thu, Jan 7

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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.

  20. Sun, Dec 27 – Thu, Jan 7

    United Airlines
    9:00 amBOS
    7h 7m
    EWR · 1h 14m
    3:07 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. Sun, Dec 27 – Fri, Jan 8

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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.

  22. Sun, Dec 27 – Fri, Jan 8

    United Airlines
    9:00 amBOS
    7h 7m
    EWR · 1h 14m
    3:07 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.

  23. Sun, Dec 27 – Sun, Jan 10

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 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.

  24. Sun, Dec 27 – 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.

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1 of 24

Make this trip yours

BOS ⇄ SAT

Economy

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Explore this route

All dates for this routeDec 26, 2026 · Return optionsDec 28, 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)
2026-12-27 · one waySouthwest AirlinesWN819 + WN4198Axel-exclusive $193.752026-10-29T00:52:46Z
2026-12-27 · one wayAmerican AirlinesAA4776 + AA1947Axel-exclusive $206.252026-10-29T00:52:46Z
2026-12-27 → 2026-12-28Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2026-12-28American Airlines / Southwest AirlinesAA4776 + AA1947 / WN2724 + WN2752Axel-exclusive $392.252026-10-29T00:52:46Z
2026-12-27 → 2026-12-29Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2026-12-29United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $416.502026-10-29T00:52:46Z
2026-12-27 → 2026-12-30Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2026-12-30United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $416.502026-10-29T00:52:46Z
2026-12-27 → 2026-12-31Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2026-12-31United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $416.502026-10-29T00:52:46Z
2026-12-27 → 2027-01-01Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-01United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $416.502026-10-29T00:52:46Z
2026-12-27 → 2027-01-02Southwest AirlinesWN819 + WN4198 / WN3764 + WN497Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-02American Airlines / United AirlinesAA4776 + AA1947 / UA469 + UA1977Axel-exclusive $410.252026-10-29T00:52:46Z
2026-12-27 → 2027-01-03Southwest AirlinesWN819 + WN4198 / WN1364 + WN800Axel-exclusive $379.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-03American Airlines / Southwest AirlinesAA4776 + AA1947 / WN1364 + WN800Axel-exclusive $392.252026-10-29T00:52:46Z
2026-12-27 → 2027-01-04Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-04American Airlines / Southwest AirlinesAA4776 + AA1947 / WN2724 + WN2752Axel-exclusive $361.252026-10-29T00:52:46Z
2026-12-27 → 2027-01-05Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-05United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-27 → 2027-01-06Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-06United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-27 → 2027-01-07Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-07United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-27 → 2027-01-08Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-08United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-27 → 2027-01-09Southwest AirlinesWN819 + WN4198 / WN3764 + WN497Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-09American Airlines / United AirlinesAA4776 + AA1947 / UA469 + UA1977Axel-exclusive $376.252026-10-29T00:52:46Z
2026-12-27 → 2027-01-10Southwest AirlinesWN819 + WN4198 / WN1364 + WN800Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-27 → 2027-01-10American Airlines / Southwest AirlinesAA4776 + AA1947 / WN1364 + WN800Axel-exclusive $361.252026-10-29T00:52:46Z

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

2026-12-27 · one way · Axel-exclusive $193.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.

2026-12-27 · one way · Axel-exclusive $206.25

  • American Airlines AA4776 / AA1947: BOS 2026-12-27 14:27:00 → SAT 2026-12-27 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-27 14:27:00 → DCA 2026-12-27 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-27 17:30:00 → SAT 2026-12-27 20:30:00.

2026-12-27 → 2026-12-28 · Axel-exclusive $379.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-28 17:35:00 → BOS 2026-12-29 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-28 17:35:00 → BWI 2026-12-28 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-28 23:15:00 → BOS 2026-12-29 00:45:00.

2026-12-27 → 2026-12-28 · Axel-exclusive $392.25

  • American Airlines AA4776 / AA1947: BOS 2026-12-27 14:27:00 → SAT 2026-12-27 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-27 14:27:00 → DCA 2026-12-27 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-27 17:30:00 → SAT 2026-12-27 20:30:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-28 17:35:00 → BOS 2026-12-29 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-28 17:35:00 → BWI 2026-12-28 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-28 23:15:00 → BOS 2026-12-29 00:45:00.

2026-12-27 → 2026-12-29 · Axel-exclusive $379.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-29 17:35:00 → BOS 2026-12-30 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-29 17:35:00 → BWI 2026-12-29 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-29 23:15:00 → BOS 2026-12-30 00:45:00.

2026-12-27 → 2026-12-29 · Axel-exclusive $416.50

  • United Airlines UA1307 / UA515: BOS 2026-12-27 09:00:00 → SAT 2026-12-27 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-27 09:00:00 → EWR 2026-12-27 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-27 11:44:00 → SAT 2026-12-27 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-29 05:15:00 → BOS 2026-12-29 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-29 05:15:00 → IAH 2026-12-29 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-29 07:45:00 → BOS 2026-12-29 12:35:00.

2026-12-27 → 2026-12-30 · Axel-exclusive $379.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2026-12-30 · Axel-exclusive $416.50

  • United Airlines UA1307 / UA515: BOS 2026-12-27 09:00:00 → SAT 2026-12-27 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-27 09:00:00 → EWR 2026-12-27 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-27 11:44:00 → SAT 2026-12-27 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-30 05:15:00 → BOS 2026-12-30 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-30 05:15:00 → IAH 2026-12-30 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-30 07:45:00 → BOS 2026-12-30 12:35:00.

2026-12-27 → 2026-12-31 · Axel-exclusive $379.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2026-12-31 · Axel-exclusive $416.50

  • United Airlines UA1307 / UA515: BOS 2026-12-27 09:00:00 → SAT 2026-12-27 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-27 09:00:00 → EWR 2026-12-27 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-27 11:44:00 → SAT 2026-12-27 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-31 05:15:00 → BOS 2026-12-31 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-31 05:15:00 → IAH 2026-12-31 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-31 07:45:00 → BOS 2026-12-31 12:35:00.

2026-12-27 → 2027-01-02 · Axel-exclusive $379.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2027-01-02 · Axel-exclusive $410.25

  • American Airlines AA4776 / AA1947: BOS 2026-12-27 14:27:00 → SAT 2026-12-27 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-27 14:27:00 → DCA 2026-12-27 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-27 17:30:00 → SAT 2026-12-27 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.

2026-12-27 → 2027-01-03 · Axel-exclusive $379.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • Southwest Airlines WN1364 / WN800: SAT 2027-01-03 05:25:00 → BOS 2027-01-03 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2027-01-03 05:25:00 → DAL 2027-01-03 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2027-01-03 08:00:00 → BOS 2027-01-03 12:30:00.

2026-12-27 → 2027-01-03 · Axel-exclusive $392.25

  • American Airlines AA4776 / AA1947: BOS 2026-12-27 14:27:00 → SAT 2026-12-27 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-27 14:27:00 → DCA 2026-12-27 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-27 17:30:00 → SAT 2026-12-27 20:30:00.
  • Southwest Airlines WN1364 / WN800: SAT 2027-01-03 05:25:00 → BOS 2027-01-03 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2027-01-03 05:25:00 → DAL 2027-01-03 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2027-01-03 08:00:00 → BOS 2027-01-03 12:30:00.

2026-12-27 → 2027-01-04 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2027-01-04 · Axel-exclusive $361.25

  • American Airlines AA4776 / AA1947: BOS 2026-12-27 14:27:00 → SAT 2026-12-27 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-27 14:27:00 → DCA 2026-12-27 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-27 17:30:00 → SAT 2026-12-27 20:30:00.
  • 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.

2026-12-27 → 2027-01-06 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2027-01-06 · Axel-exclusive $382.50

  • United Airlines UA1307 / UA515: BOS 2026-12-27 09:00:00 → SAT 2026-12-27 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-27 09:00:00 → EWR 2026-12-27 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-27 11:44:00 → SAT 2026-12-27 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2027-01-06 05:15:00 → BOS 2027-01-06 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2027-01-06 05:15:00 → IAH 2027-01-06 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2027-01-06 07:45:00 → BOS 2027-01-06 12:35:00.

2026-12-27 → 2027-01-07 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2027-01-07 17:35:00 → BOS 2027-01-08 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2027-01-07 17:35:00 → BWI 2027-01-07 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2027-01-07 23:15:00 → BOS 2027-01-08 00:45:00.

2026-12-27 → 2027-01-07 · Axel-exclusive $382.50

  • United Airlines UA1307 / UA515: BOS 2026-12-27 09:00:00 → SAT 2026-12-27 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-27 09:00:00 → EWR 2026-12-27 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-27 11:44:00 → SAT 2026-12-27 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2027-01-07 05:15:00 → BOS 2027-01-07 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2027-01-07 05:15:00 → IAH 2027-01-07 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2027-01-07 07:45:00 → BOS 2027-01-07 12:35:00.

2026-12-27 → 2027-01-08 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2027-01-08 · Axel-exclusive $382.50

  • United Airlines UA1307 / UA515: BOS 2026-12-27 09:00:00 → SAT 2026-12-27 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-27 09:00:00 → EWR 2026-12-27 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-27 11:44:00 → SAT 2026-12-27 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2027-01-08 05:15:00 → BOS 2027-01-08 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2027-01-08 05:15:00 → IAH 2027-01-08 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2027-01-08 07:45:00 → BOS 2027-01-08 12:35:00.

2026-12-27 → 2027-01-10 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-27 05:10:00 → SAT 2026-12-27 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-27 05:10:00 → STL 2026-12-27 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-27 08:20:00 → SAT 2026-12-27 10:35:00.
  • 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.

2026-12-27 → 2027-01-10 · Axel-exclusive $361.25

  • American Airlines AA4776 / AA1947: BOS 2026-12-27 14:27:00 → SAT 2026-12-27 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-27 14:27:00 → DCA 2026-12-27 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-27 17:30:00 → SAT 2026-12-27 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.

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  • This page: Boston (BOS) to San Antonio (SAT) · Dec 27, 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.
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  • 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.