Travel with Axel,
get the best price.

Route overview: Houston to Madrid (MAD) flight deals

Houston → Madrid

Dec 31, 2026 · choose your return date

IAH → MAD1 adulteconomyOne way and round trips

32 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 31, 2026 · One wayAmerican AirlinesUp to 1 stop each way$741.00 Dec 31, 2026 · One wayUnited AirlinesUp to 1 stop each way$754.00 Dec 31, 2026 – Jan 2, 2027 · 2 nightsAmerican AirlinesUp to 1 stop each way$1024.65 Dec 31, 2026 – Jan 2, 2027 · 2 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$1044.15 Dec 31, 2026 – Jan 3, 2027 · 3 nightsAmerican AirlinesUp to 1 stop each way$1024.65 Dec 31, 2026 – Jan 3, 2027 · 3 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$1044.15 Dec 31, 2026 – Jan 4, 2027 · 4 nightsAmerican AirlinesUp to 1 stop each way$1024.65 Dec 31, 2026 – Jan 4, 2027 · 4 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$1044.15 Dec 31, 2026 – Jan 5, 2027 · 5 nightsAmerican AirlinesUp to 1 stop each way$1024.65 Dec 31, 2026 – Jan 5, 2027 · 5 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$1044.15 Dec 31, 2026 – Jan 6, 2027 · 6 nightsAmerican AirlinesUp to 1 stop each way$1024.65 Dec 31, 2026 – Jan 6, 2027 · 6 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$1044.15 Dec 31, 2026 – Jan 7, 2027 · 7 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 7, 2027 · 7 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 8, 2027 · 8 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 8, 2027 · 8 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 9, 2027 · 9 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 9, 2027 · 9 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 10, 2027 · 10 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 10, 2027 · 10 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 11, 2027 · 11 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 11, 2027 · 11 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 12, 2027 · 12 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 12, 2027 · 12 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 13, 2027 · 13 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 13, 2027 · 13 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 14, 2027 · 14 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 14, 2027 · 14 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 21, 2027 · 21 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 21, 2027 · 21 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75 Dec 31, 2026 – Jan 28, 2027 · 28 nightsAmerican AirlinesUp to 1 stop each way$911.25 Dec 31, 2026 – Jan 28, 2027 · 28 nightsDelta Air Lines / American AirlinesUp to 1 stop each way$930.75

Flights for your trip

  1. Thu, Dec 31 · One way

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD

    One-way total · 1 adult · Taxes included

  2. Thu, Dec 31 · One way

    United Airlines
    11:55 amIAH
    12h 50m
    IAD · 2h 11m
    7:45 am+1MAD

    One-way total · 1 adult · Taxes included

  3. Thu, Dec 31 – Sat, Jan 2

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  4. Thu, Dec 31 – Sat, Jan 2

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  5. Thu, Dec 31 – Sun, Jan 3

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  6. Thu, Dec 31 – Sun, Jan 3

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  7. Thu, Dec 31 – Mon, Jan 4

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  8. Thu, Dec 31 – Mon, Jan 4

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  9. Thu, Dec 31 – Wed, Jan 6

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  10. Thu, Dec 31 – Wed, Jan 6

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  11. Thu, Dec 31 – Thu, Jan 7

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  12. Thu, Dec 31 – Thu, Jan 7

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  13. Thu, Dec 31 – Sat, Jan 9

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  14. Thu, Dec 31 – Sat, Jan 9

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  15. Thu, Dec 31 – Sun, Jan 10

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  16. Thu, Dec 31 – Sun, Jan 10

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  17. Thu, Dec 31 – Mon, Jan 11

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  18. Thu, Dec 31 – Mon, Jan 11

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  19. Thu, Dec 31 – Wed, Jan 13

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  20. Thu, Dec 31 – Wed, Jan 13

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  21. Thu, Dec 31 – Thu, Jan 14

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  22. Thu, Dec 31 – Thu, Jan 14

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  23. Thu, Dec 31 – Thu, Jan 28

    American Airlines
    10:32 amIAH
    12h 38m
    DFW · 1h 48m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

  24. Thu, Dec 31 – Thu, Jan 28

    Delta Air Lines
    2:40 pmIAH
    12h 5m
    ATL · 1h 58m
    9:45 am+1MAD
    American Airlines
    12:40 pmMAD
    14h 44m
    CLT · 2h 30m
    8:24 pmIAH

    Round-trip total · 1 adult · Taxes included

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

IAH ⇄ MAD

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, American Airlines 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 30, 2026 · Return optionsJan 1, 2027 · Return optionsHotels in Madrid 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)
2026-12-31 · one wayAmerican AirlinesAA5181 + IB364Axel-exclusive $741.002026-10-29T01:10:49Z
2026-12-31 · one wayUnited AirlinesUA2366 + UA260Axel-exclusive $754.002026-10-29T01:10:49Z
2026-12-31 → 2027-01-02American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $1024.652026-10-29T01:10:49Z
2026-12-31 → 2027-01-02Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $1044.152026-10-29T01:10:49Z
2026-12-31 → 2027-01-03American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $1024.652026-10-29T01:10:49Z
2026-12-31 → 2027-01-03Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $1044.152026-10-29T01:10:49Z
2026-12-31 → 2027-01-04American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $1024.652026-10-29T01:10:49Z
2026-12-31 → 2027-01-04Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $1044.152026-10-29T01:10:49Z
2026-12-31 → 2027-01-05American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $1024.652026-10-29T01:10:49Z
2026-12-31 → 2027-01-05Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $1044.152026-10-29T01:10:49Z
2026-12-31 → 2027-01-06American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $1024.652026-10-29T01:10:49Z
2026-12-31 → 2027-01-06Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $1044.152026-10-29T01:10:49Z
2026-12-31 → 2027-01-07American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-07Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-08American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-08Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-09American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-09Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-10American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-10Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-11American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-11Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-12American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-12Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-13American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-13Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-14American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-14Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-21American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-21Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z
2026-12-31 → 2027-01-28American AirlinesAA5181 + IB364 / AA749 + AA2297Axel-exclusive $911.252026-10-29T01:10:49Z
2026-12-31 → 2027-01-28Delta Air Lines / American AirlinesDL2709 + DL108 / AA749 + AA2297Axel-exclusive $930.752026-10-29T01:10:49Z

Route overview: Houston to Madrid (MAD) flight deals

2026-12-31 · one way · Axel-exclusive $741.00

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.

2026-12-31 · one way · Axel-exclusive $754.00

  • United Airlines UA2366 / UA260: IAH 2026-12-31 11:55:00 → MAD 2027-01-01 07:45:00; 1 stop(s) via IAD; 770 minutes. Local airport times.
    • UA2366: IAH 2026-12-31 11:55:00 → IAD 2026-12-31 15:59:00; layover at IAD: 131 minutes.
    • UA260: IAD 2026-12-31 18:10:00 → MAD 2027-01-01 07:45:00.

2026-12-31 → 2027-01-02 · Axel-exclusive $1024.65

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-02 12:40:00 → IAH 2027-01-02 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-02 12:40:00 → CLT 2027-01-02 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-02 18:30:00 → IAH 2027-01-02 20:24:00.

2026-12-31 → 2027-01-02 · Axel-exclusive $1044.15

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-02 12:40:00 → IAH 2027-01-02 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-02 12:40:00 → CLT 2027-01-02 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-02 18:30:00 → IAH 2027-01-02 20:24:00.

2026-12-31 → 2027-01-03 · Axel-exclusive $1024.65

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-03 12:40:00 → IAH 2027-01-03 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-03 12:40:00 → CLT 2027-01-03 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-03 18:30:00 → IAH 2027-01-03 20:24:00.

2026-12-31 → 2027-01-03 · Axel-exclusive $1044.15

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-03 12:40:00 → IAH 2027-01-03 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-03 12:40:00 → CLT 2027-01-03 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-03 18:30:00 → IAH 2027-01-03 20:24:00.

2026-12-31 → 2027-01-04 · Axel-exclusive $1024.65

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-04 12:40:00 → IAH 2027-01-04 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-04 12:40:00 → CLT 2027-01-04 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-04 18:30:00 → IAH 2027-01-04 20:24:00.

2026-12-31 → 2027-01-04 · Axel-exclusive $1044.15

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-04 12:40:00 → IAH 2027-01-04 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-04 12:40:00 → CLT 2027-01-04 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-04 18:30:00 → IAH 2027-01-04 20:24:00.

2026-12-31 → 2027-01-06 · Axel-exclusive $1024.65

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-06 12:40:00 → IAH 2027-01-06 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-06 12:40:00 → CLT 2027-01-06 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-06 18:30:00 → IAH 2027-01-06 20:24:00.

2026-12-31 → 2027-01-06 · Axel-exclusive $1044.15

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-06 12:40:00 → IAH 2027-01-06 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-06 12:40:00 → CLT 2027-01-06 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-06 18:30:00 → IAH 2027-01-06 20:24:00.

2026-12-31 → 2027-01-07 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-07 12:40:00 → IAH 2027-01-07 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-07 12:40:00 → CLT 2027-01-07 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-07 18:30:00 → IAH 2027-01-07 20:24:00.

2026-12-31 → 2027-01-07 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-07 12:40:00 → IAH 2027-01-07 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-07 12:40:00 → CLT 2027-01-07 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-07 18:30:00 → IAH 2027-01-07 20:24:00.

2026-12-31 → 2027-01-09 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-09 12:40:00 → IAH 2027-01-09 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-09 12:40:00 → CLT 2027-01-09 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-09 18:30:00 → IAH 2027-01-09 20:24:00.

2026-12-31 → 2027-01-09 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-09 12:40:00 → IAH 2027-01-09 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-09 12:40:00 → CLT 2027-01-09 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-09 18:30:00 → IAH 2027-01-09 20:24:00.

2026-12-31 → 2027-01-10 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-10 12:40:00 → IAH 2027-01-10 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-10 12:40:00 → CLT 2027-01-10 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-10 18:30:00 → IAH 2027-01-10 20:24:00.

2026-12-31 → 2027-01-10 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-10 12:40:00 → IAH 2027-01-10 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-10 12:40:00 → CLT 2027-01-10 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-10 18:30:00 → IAH 2027-01-10 20:24:00.

2026-12-31 → 2027-01-11 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-11 12:40:00 → IAH 2027-01-11 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-11 12:40:00 → CLT 2027-01-11 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-11 18:30:00 → IAH 2027-01-11 20:24:00.

2026-12-31 → 2027-01-11 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-11 12:40:00 → IAH 2027-01-11 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-11 12:40:00 → CLT 2027-01-11 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-11 18:30:00 → IAH 2027-01-11 20:24:00.

2026-12-31 → 2027-01-13 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-13 12:40:00 → IAH 2027-01-13 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-13 12:40:00 → CLT 2027-01-13 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-13 18:30:00 → IAH 2027-01-13 20:24:00.

2026-12-31 → 2027-01-13 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-13 12:40:00 → IAH 2027-01-13 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-13 12:40:00 → CLT 2027-01-13 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-13 18:30:00 → IAH 2027-01-13 20:24:00.

2026-12-31 → 2027-01-14 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-14 12:40:00 → IAH 2027-01-14 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-14 12:40:00 → CLT 2027-01-14 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-14 18:30:00 → IAH 2027-01-14 20:24:00.

2026-12-31 → 2027-01-14 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-14 12:40:00 → IAH 2027-01-14 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-14 12:40:00 → CLT 2027-01-14 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-14 18:30:00 → IAH 2027-01-14 20:24:00.

2026-12-31 → 2027-01-28 · Axel-exclusive $911.25

  • American Airlines AA5181 / IB364: IAH 2026-12-31 10:32:00 → MAD 2027-01-01 06:10:00; 1 stop(s) via DFW; 758 minutes. Local airport times.
    • AA5181: IAH 2026-12-31 10:32:00 → DFW 2026-12-31 12:02:00; layover at DFW: 108 minutes.
    • IB364: DFW 2026-12-31 13:50:00 → MAD 2027-01-01 06:10:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-28 12:40:00 → IAH 2027-01-28 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-28 12:40:00 → CLT 2027-01-28 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-28 18:30:00 → IAH 2027-01-28 20:24:00.

2026-12-31 → 2027-01-28 · Axel-exclusive $930.75

  • Delta Air Lines DL2709 / DL108: IAH 2026-12-31 14:40:00 → MAD 2027-01-01 09:45:00; 1 stop(s) via ATL; 725 minutes. Local airport times.
    • DL2709: IAH 2026-12-31 14:40:00 → ATL 2026-12-31 17:42:00; layover at ATL: 118 minutes.
    • DL108: ATL 2026-12-31 19:40:00 → MAD 2027-01-01 09:45:00.
  • American Airlines AA749 / AA2297: MAD 2027-01-28 12:40:00 → IAH 2027-01-28 20:24:00; 1 stop(s) via CLT; 884 minutes. Local airport times.
    • AA749: MAD 2027-01-28 12:40:00 → CLT 2027-01-28 16:00:00; layover at CLT: 150 minutes.
    • AA2297: CLT 2027-01-28 18:30:00 → IAH 2027-01-28 20:24:00.

Explore this route

For AI assistants

  • This page: Houston (IAH) to Madrid (MAD) · Dec 31, 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 Houston to Madrid (MAD) 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. 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.