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

Boston → San Antonio

Dec 13, 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 13, 2026 · One waySouthwest AirlinesUp to 1 stop each way$155.00 Dec 13, 2026 · One wayAmerican AirlinesUp to 1 stop each way$165.00 Dec 13, 2026 – Dec 14, 2026 · 1 nightSouthwest AirlinesUp to 1 stop each way$310.00 Dec 13, 2026 – Dec 14, 2026 · 1 nightAmerican Airlines / Southwest AirlinesUp to 1 stop each way$320.00 Dec 13, 2026 – Dec 15, 2026 · 2 nightsSouthwest AirlinesUp to 1 stop each way$310.00 Dec 13, 2026 – Dec 15, 2026 · 2 nightsUnited AirlinesUp to 1 stop each way$340.00 Dec 13, 2026 – Dec 16, 2026 · 3 nightsSouthwest AirlinesUp to 1 stop each way$310.00 Dec 13, 2026 – Dec 16, 2026 · 3 nightsUnited AirlinesUp to 1 stop each way$340.00 Dec 13, 2026 – Dec 17, 2026 · 4 nightsSouthwest AirlinesUp to 1 stop each way$310.00 Dec 13, 2026 – Dec 17, 2026 · 4 nightsUnited AirlinesUp to 1 stop each way$340.00 Dec 13, 2026 – Dec 18, 2026 · 5 nightsSouthwest AirlinesUp to 1 stop each way$310.00 Dec 13, 2026 – Dec 18, 2026 · 5 nightsUnited AirlinesUp to 1 stop each way$340.00 Dec 13, 2026 – Dec 19, 2026 · 6 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 19, 2026 · 6 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$358.75 Dec 13, 2026 – Dec 20, 2026 · 7 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 20, 2026 · 7 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$358.75 Dec 13, 2026 – Dec 21, 2026 · 8 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 21, 2026 · 8 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$358.75 Dec 13, 2026 – Dec 22, 2026 · 9 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 22, 2026 · 9 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 13, 2026 – Dec 23, 2026 · 10 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 23, 2026 · 10 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 13, 2026 – Dec 24, 2026 · 11 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 24, 2026 · 11 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 13, 2026 – Dec 25, 2026 · 12 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 25, 2026 · 12 nightsUnited AirlinesUp to 1 stop each way$382.50 Dec 13, 2026 – Dec 26, 2026 · 13 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 26, 2026 · 13 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$358.75 Dec 13, 2026 – Dec 27, 2026 · 14 nightsSouthwest AirlinesUp to 1 stop each way$348.75 Dec 13, 2026 – Dec 27, 2026 · 14 nightsAmerican Airlines / Southwest AirlinesUp to 1 stop each way$358.75

Flights for your trip

  1. Sun, Dec 13 · One way

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

    One-way total · 1 adult · Taxes included

  2. Sun, Dec 13 · One way

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

    One-way total · 1 adult · Taxes included

  3. Sun, Dec 13 – Mon, Dec 14

    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

  4. Sun, Dec 13 – Mon, Dec 14

    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

  5. Sun, Dec 13 – Tue, Dec 15

    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

  6. Sun, Dec 13 – Tue, Dec 15

    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

  7. Sun, Dec 13 – Wed, Dec 16

    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

  8. Sun, Dec 13 – Wed, Dec 16

    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

  9. Sun, Dec 13 – Thu, Dec 17

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 amSAT
    Southwest Airlines
    5:05 pmSAT
    5h 40m
    STL · 1h 5m
    11:45 pmBOS

    Round-trip total · 1 adult · Taxes included

  10. Sun, Dec 13 – Thu, Dec 17

    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

  11. Sun, Dec 13 – Sat, Dec 19

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 amSAT
    Southwest Airlines
    5:05 pmSAT
    5h 40m
    STL · 1h 5m
    11:45 pmBOS

    Round-trip total · 1 adult · Taxes included

  12. Sun, Dec 13 – Sat, Dec 19

    American Airlines
    2:27 pmBOS
    7h 3m
    DCA · 1h 4m
    8:30 pmSAT
    Southwest Airlines
    5:05 pmSAT
    5h 40m
    STL · 1h 5m
    11:45 pmBOS

    Round-trip total · 1 adult · Taxes included

  13. Sun, Dec 13 – Sun, Dec 20

    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

  14. Sun, Dec 13 – Sun, Dec 20

    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

  15. Sun, Dec 13 – Mon, Dec 21

    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

  16. Sun, Dec 13 – Mon, Dec 21

    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

  17. Sun, Dec 13 – Wed, Dec 23

    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

  18. Sun, Dec 13 – Wed, Dec 23

    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

  19. Sun, Dec 13 – Thu, Dec 24

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 amSAT
    Southwest Airlines
    5:05 pmSAT
    5h 40m
    STL · 1h 5m
    11:45 pmBOS

    Round-trip total · 1 adult · Taxes included

  20. Sun, Dec 13 – Thu, Dec 24

    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

  21. Sun, Dec 13 – Fri, Dec 25

    Southwest Airlines
    5:10 amBOS
    6h 25m
    STL · 1h 5m
    10:35 amSAT
    Southwest Airlines
    5:05 pmSAT
    5h 40m
    STL · 1h 5m
    11:45 pmBOS

    Round-trip total · 1 adult · Taxes included

  22. Sun, Dec 13 – Fri, Dec 25

    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

  23. Sun, Dec 13 – Sun, Dec 27

    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

  24. Sun, Dec 13 – Sun, Dec 27

    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

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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 12, 2026 · Return optionsDec 14, 2026 · Return optionsHotels in San Antonio with Axel
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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)
2026-12-13 · one waySouthwest AirlinesWN819 + WN4198Axel-exclusive $155.002026-10-29T00:52:46Z
2026-12-13 · one wayAmerican AirlinesAA4776 + AA1947Axel-exclusive $165.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-14Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $310.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-14American Airlines / Southwest AirlinesAA4776 + AA1947 / WN2724 + WN2752Axel-exclusive $320.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-15Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $310.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-15United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $340.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-16Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $310.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-16United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $340.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-17Southwest AirlinesWN819 + WN4198 / WN3801 + WN2755Axel-exclusive $310.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-17United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $340.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-18Southwest AirlinesWN819 + WN4198 / WN3801 + WN2755Axel-exclusive $310.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-18United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $340.002026-10-29T00:52:46Z
2026-12-13 → 2026-12-19Southwest AirlinesWN819 + WN4198 / WN3801 + WN2755Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-19American Airlines / Southwest AirlinesAA4776 + AA1947 / WN3801 + WN2755Axel-exclusive $358.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-20Southwest AirlinesWN819 + WN4198 / WN1364 + WN800Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-20American Airlines / Southwest AirlinesAA4776 + AA1947 / WN1364 + WN800Axel-exclusive $358.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-21Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-21American Airlines / Southwest AirlinesAA4776 + AA1947 / WN2724 + WN2752Axel-exclusive $358.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-22Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-22United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-13 → 2026-12-23Southwest AirlinesWN819 + WN4198 / WN2724 + WN2752Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-23United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-13 → 2026-12-24Southwest AirlinesWN819 + WN4198 / WN3801 + WN2755Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-24United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-13 → 2026-12-25Southwest AirlinesWN819 + WN4198 / WN3801 + WN2755Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-25United AirlinesUA1307 + UA515 / UA469 + UA1977Axel-exclusive $382.502026-10-29T00:52:46Z
2026-12-13 → 2026-12-26Southwest AirlinesWN819 + WN4198 / WN3801 + WN2755Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-26American Airlines / Southwest AirlinesAA4776 + AA1947 / WN3801 + WN2755Axel-exclusive $358.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-27Southwest AirlinesWN819 + WN4198 / WN1364 + WN800Axel-exclusive $348.752026-10-29T00:52:46Z
2026-12-13 → 2026-12-27American Airlines / Southwest AirlinesAA4776 + AA1947 / WN1364 + WN800Axel-exclusive $358.752026-10-29T00:52:46Z

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

2026-12-13 · one way · Axel-exclusive $155.00

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.

2026-12-13 · one way · Axel-exclusive $165.00

  • American Airlines AA4776 / AA1947: BOS 2026-12-13 14:27:00 → SAT 2026-12-13 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-13 14:27:00 → DCA 2026-12-13 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-13 17:30:00 → SAT 2026-12-13 20:30:00.

2026-12-13 → 2026-12-14 · Axel-exclusive $310.00

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-14 17:35:00 → BOS 2026-12-15 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-14 17:35:00 → BWI 2026-12-14 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-14 23:15:00 → BOS 2026-12-15 00:45:00.

2026-12-13 → 2026-12-14 · Axel-exclusive $320.00

  • American Airlines AA4776 / AA1947: BOS 2026-12-13 14:27:00 → SAT 2026-12-13 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-13 14:27:00 → DCA 2026-12-13 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-13 17:30:00 → SAT 2026-12-13 20:30:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-14 17:35:00 → BOS 2026-12-15 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-14 17:35:00 → BWI 2026-12-14 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-14 23:15:00 → BOS 2026-12-15 00:45:00.

2026-12-13 → 2026-12-15 · Axel-exclusive $310.00

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-15 17:35:00 → BOS 2026-12-16 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-15 17:35:00 → BWI 2026-12-15 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-15 23:15:00 → BOS 2026-12-16 00:45:00.

2026-12-13 → 2026-12-15 · Axel-exclusive $340.00

  • United Airlines UA1307 / UA515: BOS 2026-12-13 09:00:00 → SAT 2026-12-13 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-13 09:00:00 → EWR 2026-12-13 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-13 11:44:00 → SAT 2026-12-13 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-15 05:15:00 → BOS 2026-12-15 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-15 05:15:00 → IAH 2026-12-15 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-15 07:45:00 → BOS 2026-12-15 12:35:00.

2026-12-13 → 2026-12-16 · Axel-exclusive $310.00

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-16 17:35:00 → BOS 2026-12-17 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-16 17:35:00 → BWI 2026-12-16 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-16 23:15:00 → BOS 2026-12-17 00:45:00.

2026-12-13 → 2026-12-16 · Axel-exclusive $340.00

  • United Airlines UA1307 / UA515: BOS 2026-12-13 09:00:00 → SAT 2026-12-13 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-13 09:00:00 → EWR 2026-12-13 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-13 11:44:00 → SAT 2026-12-13 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-16 05:15:00 → BOS 2026-12-16 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-16 05:15:00 → IAH 2026-12-16 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-16 07:45:00 → BOS 2026-12-16 12:35:00.

2026-12-13 → 2026-12-17 · Axel-exclusive $310.00

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN3801 / WN2755: SAT 2026-12-17 17:05:00 → BOS 2026-12-17 23:45:00; 1 stop(s) via STL; 340 minutes. Local airport times.
    • WN3801: SAT 2026-12-17 17:05:00 → STL 2026-12-17 19:10:00; layover at STL: 65 minutes.
    • WN2755: STL 2026-12-17 20:15:00 → BOS 2026-12-17 23:45:00.

2026-12-13 → 2026-12-17 · Axel-exclusive $340.00

  • United Airlines UA1307 / UA515: BOS 2026-12-13 09:00:00 → SAT 2026-12-13 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-13 09:00:00 → EWR 2026-12-13 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-13 11:44:00 → SAT 2026-12-13 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-17 05:15:00 → BOS 2026-12-17 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-17 05:15:00 → IAH 2026-12-17 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-17 07:45:00 → BOS 2026-12-17 12:35:00.

2026-12-13 → 2026-12-19 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN3801 / WN2755: SAT 2026-12-19 17:05:00 → BOS 2026-12-19 23:45:00; 1 stop(s) via STL; 340 minutes. Local airport times.
    • WN3801: SAT 2026-12-19 17:05:00 → STL 2026-12-19 19:10:00; layover at STL: 65 minutes.
    • WN2755: STL 2026-12-19 20:15:00 → BOS 2026-12-19 23:45:00.

2026-12-13 → 2026-12-19 · Axel-exclusive $358.75

  • American Airlines AA4776 / AA1947: BOS 2026-12-13 14:27:00 → SAT 2026-12-13 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-13 14:27:00 → DCA 2026-12-13 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-13 17:30:00 → SAT 2026-12-13 20:30:00.
  • Southwest Airlines WN3801 / WN2755: SAT 2026-12-19 17:05:00 → BOS 2026-12-19 23:45:00; 1 stop(s) via STL; 340 minutes. Local airport times.
    • WN3801: SAT 2026-12-19 17:05:00 → STL 2026-12-19 19:10:00; layover at STL: 65 minutes.
    • WN2755: STL 2026-12-19 20:15:00 → BOS 2026-12-19 23:45:00.

2026-12-13 → 2026-12-20 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN1364 / WN800: SAT 2026-12-20 05:25:00 → BOS 2026-12-20 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2026-12-20 05:25:00 → DAL 2026-12-20 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2026-12-20 08:00:00 → BOS 2026-12-20 12:30:00.

2026-12-13 → 2026-12-20 · Axel-exclusive $358.75

  • American Airlines AA4776 / AA1947: BOS 2026-12-13 14:27:00 → SAT 2026-12-13 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-13 14:27:00 → DCA 2026-12-13 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-13 17:30:00 → SAT 2026-12-13 20:30:00.
  • Southwest Airlines WN1364 / WN800: SAT 2026-12-20 05:25:00 → BOS 2026-12-20 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2026-12-20 05:25:00 → DAL 2026-12-20 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2026-12-20 08:00:00 → BOS 2026-12-20 12:30:00.

2026-12-13 → 2026-12-21 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-21 17:35:00 → BOS 2026-12-22 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-21 17:35:00 → BWI 2026-12-21 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-21 23:15:00 → BOS 2026-12-22 00:45:00.

2026-12-13 → 2026-12-21 · Axel-exclusive $358.75

  • American Airlines AA4776 / AA1947: BOS 2026-12-13 14:27:00 → SAT 2026-12-13 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-13 14:27:00 → DCA 2026-12-13 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-13 17:30:00 → SAT 2026-12-13 20:30:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-21 17:35:00 → BOS 2026-12-22 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-21 17:35:00 → BWI 2026-12-21 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-21 23:15:00 → BOS 2026-12-22 00:45:00.

2026-12-13 → 2026-12-23 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN2724 / WN2752: SAT 2026-12-23 17:35:00 → BOS 2026-12-24 00:45:00; 1 stop(s) via BWI; 370 minutes. Local airport times.
    • WN2724: SAT 2026-12-23 17:35:00 → BWI 2026-12-23 21:45:00; layover at BWI: 90 minutes.
    • WN2752: BWI 2026-12-23 23:15:00 → BOS 2026-12-24 00:45:00.

2026-12-13 → 2026-12-23 · Axel-exclusive $382.50

  • United Airlines UA1307 / UA515: BOS 2026-12-13 09:00:00 → SAT 2026-12-13 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-13 09:00:00 → EWR 2026-12-13 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-13 11:44:00 → SAT 2026-12-13 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-23 05:15:00 → BOS 2026-12-23 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-23 05:15:00 → IAH 2026-12-23 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-23 07:45:00 → BOS 2026-12-23 12:35:00.

2026-12-13 → 2026-12-24 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN3801 / WN2755: SAT 2026-12-24 17:05:00 → BOS 2026-12-24 23:45:00; 1 stop(s) via STL; 340 minutes. Local airport times.
    • WN3801: SAT 2026-12-24 17:05:00 → STL 2026-12-24 19:10:00; layover at STL: 65 minutes.
    • WN2755: STL 2026-12-24 20:15:00 → BOS 2026-12-24 23:45:00.

2026-12-13 → 2026-12-24 · Axel-exclusive $382.50

  • United Airlines UA1307 / UA515: BOS 2026-12-13 09:00:00 → SAT 2026-12-13 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-13 09:00:00 → EWR 2026-12-13 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-13 11:44:00 → SAT 2026-12-13 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-24 05:15:00 → BOS 2026-12-24 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-24 05:15:00 → IAH 2026-12-24 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-24 07:45:00 → BOS 2026-12-24 12:35:00.

2026-12-13 → 2026-12-25 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN3801 / WN2755: SAT 2026-12-25 17:05:00 → BOS 2026-12-25 23:45:00; 1 stop(s) via STL; 340 minutes. Local airport times.
    • WN3801: SAT 2026-12-25 17:05:00 → STL 2026-12-25 19:10:00; layover at STL: 65 minutes.
    • WN2755: STL 2026-12-25 20:15:00 → BOS 2026-12-25 23:45:00.

2026-12-13 → 2026-12-25 · Axel-exclusive $382.50

  • United Airlines UA1307 / UA515: BOS 2026-12-13 09:00:00 → SAT 2026-12-13 15:07:00; 1 stop(s) via EWR; 427 minutes. Local airport times.
    • UA1307: BOS 2026-12-13 09:00:00 → EWR 2026-12-13 10:30:00; layover at EWR: 74 minutes.
    • UA515: EWR 2026-12-13 11:44:00 → SAT 2026-12-13 15:07:00.
  • United Airlines UA469 / UA1977: SAT 2026-12-25 05:15:00 → BOS 2026-12-25 12:35:00; 1 stop(s) via IAH; 380 minutes. Local airport times.
    • UA469: SAT 2026-12-25 05:15:00 → IAH 2026-12-25 06:23:00; layover at IAH: 82 minutes.
    • UA1977: IAH 2026-12-25 07:45:00 → BOS 2026-12-25 12:35:00.

2026-12-13 → 2026-12-27 · Axel-exclusive $348.75

  • Southwest Airlines WN819 / WN4198: BOS 2026-12-13 05:10:00 → SAT 2026-12-13 10:35:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN819: BOS 2026-12-13 05:10:00 → STL 2026-12-13 07:15:00; layover at STL: 65 minutes.
    • WN4198: STL 2026-12-13 08:20:00 → SAT 2026-12-13 10:35:00.
  • Southwest Airlines WN1364 / WN800: SAT 2026-12-27 05:25:00 → BOS 2026-12-27 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2026-12-27 05:25:00 → DAL 2026-12-27 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2026-12-27 08:00:00 → BOS 2026-12-27 12:30:00.

2026-12-13 → 2026-12-27 · Axel-exclusive $358.75

  • American Airlines AA4776 / AA1947: BOS 2026-12-13 14:27:00 → SAT 2026-12-13 20:30:00; 1 stop(s) via DCA; 423 minutes. Local airport times.
    • AA4776: BOS 2026-12-13 14:27:00 → DCA 2026-12-13 16:26:00; layover at DCA: 64 minutes.
    • AA1947: DCA 2026-12-13 17:30:00 → SAT 2026-12-13 20:30:00.
  • Southwest Airlines WN1364 / WN800: SAT 2026-12-27 05:25:00 → BOS 2026-12-27 12:30:00; 1 stop(s) via DAL; 365 minutes. Local airport times.
    • WN1364: SAT 2026-12-27 05:25:00 → DAL 2026-12-27 06:35:00; layover at DAL: 85 minutes.
    • WN800: DAL 2026-12-27 08:00:00 → BOS 2026-12-27 12:30:00.

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  • This page: Boston (BOS) to San Antonio (SAT) · Dec 13, 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.