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Route overview: Denver to Madrid (MAD) flight deals

Denver → Madrid

Dec 17, 2026 · choose your return date

DEN → MAD1 adulteconomyOne way and round trips

32 flight options · 5 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 17, 2026 · One wayAir CanadaUp to 1 stop each way$530.00 Dec 17, 2026 · One wayAmerican AirlinesUp to 1 stop each way$560.00 Dec 17, 2026 – Dec 19, 2026 · 2 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 19, 2026 · 2 nightsUnited AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Dec 20, 2026 · 3 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 20, 2026 · 3 nightsBritish Airways / Air CanadaUp to 1 stop each way$927.00 Dec 17, 2026 – Dec 21, 2026 · 4 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 21, 2026 · 4 nightsBritish Airways / IberiaUp to 1 stop each way$933.50 Dec 17, 2026 – Dec 22, 2026 · 5 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 22, 2026 · 5 nightsBritish Airways / Air CanadaUp to 1 stop each way$927.00 Dec 17, 2026 – Dec 23, 2026 · 6 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 23, 2026 · 6 nightsAmerican AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Dec 24, 2026 · 7 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 24, 2026 · 7 nightsUnited AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Dec 25, 2026 · 8 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 25, 2026 · 8 nightsUnited AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Dec 26, 2026 · 9 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 26, 2026 · 9 nightsUnited AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Dec 27, 2026 · 10 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 27, 2026 · 10 nightsBritish Airways / Air CanadaUp to 1 stop each way$927.00 Dec 17, 2026 – Dec 28, 2026 · 11 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 28, 2026 · 11 nightsBritish Airways / IberiaUp to 1 stop each way$933.50 Dec 17, 2026 – Dec 29, 2026 · 12 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 29, 2026 · 12 nightsBritish Airways / Air CanadaUp to 1 stop each way$927.00 Dec 17, 2026 – Dec 30, 2026 · 13 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 30, 2026 · 13 nightsUnited AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Dec 31, 2026 · 14 nightsAir CanadaUp to 1 stop each way$897.00 Dec 17, 2026 – Dec 31, 2026 · 14 nightsAmerican AirlinesUp to 1 stop each way$943.00 Dec 17, 2026 – Jan 7, 2027 · 21 nightsAir CanadaUp to 1 stop each way$780.00 Dec 17, 2026 – Jan 7, 2027 · 21 nightsAmerican AirlinesUp to 1 stop each way$820.00 Dec 17, 2026 – Jan 14, 2027 · 28 nightsAir CanadaUp to 1 stop each way$780.00 Dec 17, 2026 – Jan 14, 2027 · 28 nightsAmerican AirlinesUp to 1 stop each way$820.00

Flights for your trip

  1. Thu, Dec 17 · One way

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD

    One-way total · 1 adult · Taxes included

  2. Thu, Dec 17 · One way

    American Airlines
    9:12 amDEN
    12h 58m
    DFW · 1h 32m
    6:10 am+1MAD

    One-way total · 1 adult · Taxes included

  3. Thu, Dec 17 – Sat, Dec 19

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  4. Thu, Dec 17 – Sat, Dec 19

    United Airlines
    10:20 amDEN
    13h 25m
    IAD · 2h 26m
    7:45 am+1MAD
    United Airlines
    11:00 amMAD
    15h 17m
    IAD · 2h 10m
    6:17 pmDEN

    Round-trip total · 1 adult · Taxes included

  5. Thu, Dec 17 – Sun, Dec 20

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  6. Thu, Dec 17 – Sun, Dec 20

    British Airways
    5:05 pmDEN
    13h 45m
    LHR · 2h 10m
    2:50 pm+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  7. Thu, Dec 17 – Mon, Dec 21

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  8. Thu, Dec 17 – Mon, Dec 21

    British Airways
    5:05 pmDEN
    13h 45m
    LHR · 2h 10m
    2:50 pm+1MAD
    Iberia
    9:00 amMAD
    14h 10m
    LHR · 1h 35m
    3:10 pmDEN

    Round-trip total · 1 adult · Taxes included

  9. Thu, Dec 17 – Wed, Dec 23

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  10. Thu, Dec 17 – Wed, Dec 23

    American Airlines
    9:12 amDEN
    12h 58m
    DFW · 1h 32m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    16h 7m
    CLT · 3h
    8:47 pmDEN

    Round-trip total · 1 adult · Taxes included

  11. Thu, Dec 17 – Thu, Dec 24

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  12. Thu, Dec 17 – Thu, Dec 24

    United Airlines
    10:20 amDEN
    13h 25m
    IAD · 2h 26m
    7:45 am+1MAD
    United Airlines
    11:00 amMAD
    15h 17m
    IAD · 2h 10m
    6:17 pmDEN

    Round-trip total · 1 adult · Taxes included

  13. Thu, Dec 17 – Sat, Dec 26

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  14. Thu, Dec 17 – Sat, Dec 26

    United Airlines
    10:20 amDEN
    13h 25m
    IAD · 2h 26m
    7:45 am+1MAD
    United Airlines
    11:00 amMAD
    15h 17m
    IAD · 2h 10m
    6:17 pmDEN

    Round-trip total · 1 adult · Taxes included

  15. Thu, Dec 17 – Sun, Dec 27

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  16. Thu, Dec 17 – Sun, Dec 27

    British Airways
    5:05 pmDEN
    13h 45m
    LHR · 2h 10m
    2:50 pm+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  17. Thu, Dec 17 – Mon, Dec 28

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  18. Thu, Dec 17 – Mon, Dec 28

    British Airways
    5:05 pmDEN
    13h 45m
    LHR · 2h 10m
    2:50 pm+1MAD
    Iberia
    9:00 amMAD
    14h 10m
    LHR · 1h 35m
    3:10 pmDEN

    Round-trip total · 1 adult · Taxes included

  19. Thu, Dec 17 – Wed, Dec 30

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  20. Thu, Dec 17 – Wed, Dec 30

    United Airlines
    10:20 amDEN
    13h 25m
    IAD · 2h 26m
    7:45 am+1MAD
    United Airlines
    11:00 amMAD
    15h 17m
    IAD · 2h 10m
    6:17 pmDEN

    Round-trip total · 1 adult · Taxes included

  21. Thu, Dec 17 – Thu, Dec 31

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  22. Thu, Dec 17 – Thu, Dec 31

    American Airlines
    9:12 amDEN
    12h 58m
    DFW · 1h 32m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    16h 7m
    CLT · 3h
    8:47 pmDEN

    Round-trip total · 1 adult · Taxes included

  23. Thu, Dec 17 – Thu, Jan 14

    Air Canada
    11:25 amDEN
    12h 35m
    YUL · 1h 40m
    8:00 am+1MAD
    Air Canada
    1:25 pmMAD
    15h 2m
    YUL · 2h 10m
    8:27 pmDEN

    Round-trip total · 1 adult · Taxes included

  24. Thu, Dec 17 – Thu, Jan 14

    American Airlines
    9:12 amDEN
    12h 58m
    DFW · 1h 32m
    6:10 am+1MAD
    American Airlines
    12:40 pmMAD
    16h 7m
    CLT · 3h
    8:47 pmDEN

    Round-trip total · 1 adult · Taxes included

Swipe to see 23 more recent deals.

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Make this trip yours

DEN ⇄ MAD

Economy

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Explore this route

All dates for this routeDec 16, 2026 · Return optionsDec 18, 2026 · Return optionsHotels in Madrid 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)
2026-12-17 · one wayAir CanadaAC1074 + AC834Axel-exclusive $530.002026-10-29T01:55:16Z
2026-12-17 · one wayAmerican AirlinesAA1523 + IB364Axel-exclusive $560.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-19Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-19United AirlinesUA2087 + UA260 / UA261 + UA395Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-20Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-20British Airways / Air CanadaBA218 + IB716 / AC835 + AC1075Axel-exclusive $927.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-21Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-21British Airways / IberiaBA218 + IB716 / IB715 + BA219Axel-exclusive $933.502026-10-29T01:55:16Z
2026-12-17 → 2026-12-22Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-22British Airways / Air CanadaBA218 + IB716 / AC835 + AC1075Axel-exclusive $927.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-23Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-23American AirlinesAA1523 + IB364 / AA749 + AA2279Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-24Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-24United AirlinesUA2087 + UA260 / UA261 + UA395Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-25Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-25United AirlinesUA2087 + UA260 / UA261 + UA395Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-26Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-26United AirlinesUA2087 + UA260 / UA261 + UA395Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-27Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-27British Airways / Air CanadaBA218 + IB716 / AC835 + AC1075Axel-exclusive $927.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-28Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-28British Airways / IberiaBA218 + IB716 / IB715 + BA219Axel-exclusive $933.502026-10-29T01:55:16Z
2026-12-17 → 2026-12-29Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-29British Airways / Air CanadaBA218 + IB716 / AC835 + AC1075Axel-exclusive $927.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-30Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-30United AirlinesUA2087 + UA260 / UA261 + UA395Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-31Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $897.002026-10-29T01:55:16Z
2026-12-17 → 2026-12-31American AirlinesAA1523 + IB364 / AA749 + AA2279Axel-exclusive $943.002026-10-29T01:55:16Z
2026-12-17 → 2027-01-07Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $780.002026-10-29T01:55:16Z
2026-12-17 → 2027-01-07American AirlinesAA1523 + IB364 / AA749 + AA2279Axel-exclusive $820.002026-10-29T01:55:16Z
2026-12-17 → 2027-01-14Air CanadaAC1074 + AC834 / AC835 + AC1075Axel-exclusive $780.002026-10-29T01:55:16Z
2026-12-17 → 2027-01-14American AirlinesAA1523 + IB364 / AA749 + AA2279Axel-exclusive $820.002026-10-29T01:55:16Z

Route overview: Denver to Madrid (MAD) flight deals

2026-12-17 · one way · Axel-exclusive $530.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.

2026-12-17 · one way · Axel-exclusive $560.00

  • American Airlines AA1523 / IB364: DEN 2026-12-17 09:12:00 → MAD 2026-12-18 06:10:00; 1 stop(s) via DFW; 778 minutes. Local airport times.
    • AA1523: DEN 2026-12-17 09:12:00 → DFW 2026-12-17 12:18:00; layover at DFW: 92 minutes.
    • IB364: DFW 2026-12-17 13:50:00 → MAD 2026-12-18 06:10:00.

2026-12-17 → 2026-12-19 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-19 13:25:00 → DEN 2026-12-19 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-19 13:25:00 → YUL 2026-12-19 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-19 17:50:00 → DEN 2026-12-19 20:27:00.

2026-12-17 → 2026-12-19 · Axel-exclusive $943.00

  • United Airlines UA2087 / UA260: DEN 2026-12-17 10:20:00 → MAD 2026-12-18 07:45:00; 1 stop(s) via IAD; 805 minutes. Local airport times.
    • UA2087: DEN 2026-12-17 10:20:00 → IAD 2026-12-17 15:44:00; layover at IAD: 146 minutes.
    • UA260: IAD 2026-12-17 18:10:00 → MAD 2026-12-18 07:45:00.
  • United Airlines UA261 / UA395: MAD 2026-12-19 11:00:00 → DEN 2026-12-19 18:17:00; 1 stop(s) via IAD; 917 minutes. Local airport times.
    • UA261: MAD 2026-12-19 11:00:00 → IAD 2026-12-19 14:00:00; layover at IAD: 130 minutes.
    • UA395: IAD 2026-12-19 16:10:00 → DEN 2026-12-19 18:17:00.

2026-12-17 → 2026-12-20 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-20 13:25:00 → DEN 2026-12-20 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-20 13:25:00 → YUL 2026-12-20 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-20 17:50:00 → DEN 2026-12-20 20:27:00.

2026-12-17 → 2026-12-20 · Axel-exclusive $927.00

  • British Airways BA218 / IB716: DEN 2026-12-17 17:05:00 → MAD 2026-12-18 14:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-12-17 17:05:00 → LHR 2026-12-18 09:15:00; layover at LHR: 130 minutes.
    • IB716: LHR 2026-12-18 11:25:00 → MAD 2026-12-18 14:50:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-20 13:25:00 → DEN 2026-12-20 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-20 13:25:00 → YUL 2026-12-20 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-20 17:50:00 → DEN 2026-12-20 20:27:00.

2026-12-17 → 2026-12-21 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-21 13:25:00 → DEN 2026-12-21 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-21 13:25:00 → YUL 2026-12-21 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-21 17:50:00 → DEN 2026-12-21 20:27:00.

2026-12-17 → 2026-12-21 · Axel-exclusive $933.50

  • British Airways BA218 / IB716: DEN 2026-12-17 17:05:00 → MAD 2026-12-18 14:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-12-17 17:05:00 → LHR 2026-12-18 09:15:00; layover at LHR: 130 minutes.
    • IB716: LHR 2026-12-18 11:25:00 → MAD 2026-12-18 14:50:00.
  • Iberia IB715 / BA219: MAD 2026-12-21 09:00:00 → DEN 2026-12-21 15:10:00; 1 stop(s) via LHR; 850 minutes. Local airport times.
    • IB715: MAD 2026-12-21 09:00:00 → LHR 2026-12-21 10:35:00; layover at LHR: 95 minutes.
    • BA219: LHR 2026-12-21 12:10:00 → DEN 2026-12-21 15:10:00.

2026-12-17 → 2026-12-23 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-23 13:25:00 → DEN 2026-12-23 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-23 13:25:00 → YUL 2026-12-23 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-23 17:50:00 → DEN 2026-12-23 20:27:00.

2026-12-17 → 2026-12-23 · Axel-exclusive $943.00

  • American Airlines AA1523 / IB364: DEN 2026-12-17 09:12:00 → MAD 2026-12-18 06:10:00; 1 stop(s) via DFW; 778 minutes. Local airport times.
    • AA1523: DEN 2026-12-17 09:12:00 → DFW 2026-12-17 12:18:00; layover at DFW: 92 minutes.
    • IB364: DFW 2026-12-17 13:50:00 → MAD 2026-12-18 06:10:00.
  • American Airlines AA749 / AA2279: MAD 2026-12-23 12:40:00 → DEN 2026-12-23 20:47:00; 1 stop(s) via CLT; 967 minutes. Local airport times.
    • AA749: MAD 2026-12-23 12:40:00 → CLT 2026-12-23 16:00:00; layover at CLT: 180 minutes.
    • AA2279: CLT 2026-12-23 19:00:00 → DEN 2026-12-23 20:47:00.

2026-12-17 → 2026-12-24 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-24 13:25:00 → DEN 2026-12-24 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-24 13:25:00 → YUL 2026-12-24 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-24 17:50:00 → DEN 2026-12-24 20:27:00.

2026-12-17 → 2026-12-24 · Axel-exclusive $943.00

  • United Airlines UA2087 / UA260: DEN 2026-12-17 10:20:00 → MAD 2026-12-18 07:45:00; 1 stop(s) via IAD; 805 minutes. Local airport times.
    • UA2087: DEN 2026-12-17 10:20:00 → IAD 2026-12-17 15:44:00; layover at IAD: 146 minutes.
    • UA260: IAD 2026-12-17 18:10:00 → MAD 2026-12-18 07:45:00.
  • United Airlines UA261 / UA395: MAD 2026-12-24 11:00:00 → DEN 2026-12-24 18:17:00; 1 stop(s) via IAD; 917 minutes. Local airport times.
    • UA261: MAD 2026-12-24 11:00:00 → IAD 2026-12-24 14:00:00; layover at IAD: 130 minutes.
    • UA395: IAD 2026-12-24 16:10:00 → DEN 2026-12-24 18:17:00.

2026-12-17 → 2026-12-26 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-26 13:25:00 → DEN 2026-12-26 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-26 13:25:00 → YUL 2026-12-26 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-26 17:50:00 → DEN 2026-12-26 20:27:00.

2026-12-17 → 2026-12-26 · Axel-exclusive $943.00

  • United Airlines UA2087 / UA260: DEN 2026-12-17 10:20:00 → MAD 2026-12-18 07:45:00; 1 stop(s) via IAD; 805 minutes. Local airport times.
    • UA2087: DEN 2026-12-17 10:20:00 → IAD 2026-12-17 15:44:00; layover at IAD: 146 minutes.
    • UA260: IAD 2026-12-17 18:10:00 → MAD 2026-12-18 07:45:00.
  • United Airlines UA261 / UA395: MAD 2026-12-26 11:00:00 → DEN 2026-12-26 18:17:00; 1 stop(s) via IAD; 917 minutes. Local airport times.
    • UA261: MAD 2026-12-26 11:00:00 → IAD 2026-12-26 14:00:00; layover at IAD: 130 minutes.
    • UA395: IAD 2026-12-26 16:10:00 → DEN 2026-12-26 18:17:00.

2026-12-17 → 2026-12-27 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-27 13:25:00 → DEN 2026-12-27 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-27 13:25:00 → YUL 2026-12-27 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-27 17:50:00 → DEN 2026-12-27 20:27:00.

2026-12-17 → 2026-12-27 · Axel-exclusive $927.00

  • British Airways BA218 / IB716: DEN 2026-12-17 17:05:00 → MAD 2026-12-18 14:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-12-17 17:05:00 → LHR 2026-12-18 09:15:00; layover at LHR: 130 minutes.
    • IB716: LHR 2026-12-18 11:25:00 → MAD 2026-12-18 14:50:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-27 13:25:00 → DEN 2026-12-27 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-27 13:25:00 → YUL 2026-12-27 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-27 17:50:00 → DEN 2026-12-27 20:27:00.

2026-12-17 → 2026-12-28 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-28 13:25:00 → DEN 2026-12-28 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-28 13:25:00 → YUL 2026-12-28 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-28 17:50:00 → DEN 2026-12-28 20:27:00.

2026-12-17 → 2026-12-28 · Axel-exclusive $933.50

  • British Airways BA218 / IB716: DEN 2026-12-17 17:05:00 → MAD 2026-12-18 14:50:00; 1 stop(s) via LHR; 825 minutes. Local airport times.
    • BA218: DEN 2026-12-17 17:05:00 → LHR 2026-12-18 09:15:00; layover at LHR: 130 minutes.
    • IB716: LHR 2026-12-18 11:25:00 → MAD 2026-12-18 14:50:00.
  • Iberia IB715 / BA219: MAD 2026-12-28 09:00:00 → DEN 2026-12-28 15:10:00; 1 stop(s) via LHR; 850 minutes. Local airport times.
    • IB715: MAD 2026-12-28 09:00:00 → LHR 2026-12-28 10:35:00; layover at LHR: 95 minutes.
    • BA219: LHR 2026-12-28 12:10:00 → DEN 2026-12-28 15:10:00.

2026-12-17 → 2026-12-30 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-30 13:25:00 → DEN 2026-12-30 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-30 13:25:00 → YUL 2026-12-30 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-30 17:50:00 → DEN 2026-12-30 20:27:00.

2026-12-17 → 2026-12-30 · Axel-exclusive $943.00

  • United Airlines UA2087 / UA260: DEN 2026-12-17 10:20:00 → MAD 2026-12-18 07:45:00; 1 stop(s) via IAD; 805 minutes. Local airport times.
    • UA2087: DEN 2026-12-17 10:20:00 → IAD 2026-12-17 15:44:00; layover at IAD: 146 minutes.
    • UA260: IAD 2026-12-17 18:10:00 → MAD 2026-12-18 07:45:00.
  • United Airlines UA261 / UA395: MAD 2026-12-30 11:00:00 → DEN 2026-12-30 18:17:00; 1 stop(s) via IAD; 917 minutes. Local airport times.
    • UA261: MAD 2026-12-30 11:00:00 → IAD 2026-12-30 14:00:00; layover at IAD: 130 minutes.
    • UA395: IAD 2026-12-30 16:10:00 → DEN 2026-12-30 18:17:00.

2026-12-17 → 2026-12-31 · Axel-exclusive $897.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2026-12-31 13:25:00 → DEN 2026-12-31 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2026-12-31 13:25:00 → YUL 2026-12-31 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2026-12-31 17:50:00 → DEN 2026-12-31 20:27:00.

2026-12-17 → 2026-12-31 · Axel-exclusive $943.00

  • American Airlines AA1523 / IB364: DEN 2026-12-17 09:12:00 → MAD 2026-12-18 06:10:00; 1 stop(s) via DFW; 778 minutes. Local airport times.
    • AA1523: DEN 2026-12-17 09:12:00 → DFW 2026-12-17 12:18:00; layover at DFW: 92 minutes.
    • IB364: DFW 2026-12-17 13:50:00 → MAD 2026-12-18 06:10:00.
  • American Airlines AA749 / AA2279: MAD 2026-12-31 12:40:00 → DEN 2026-12-31 20:47:00; 1 stop(s) via CLT; 967 minutes. Local airport times.
    • AA749: MAD 2026-12-31 12:40:00 → CLT 2026-12-31 16:00:00; layover at CLT: 180 minutes.
    • AA2279: CLT 2026-12-31 19:00:00 → DEN 2026-12-31 20:47:00.

2026-12-17 → 2027-01-14 · Axel-exclusive $780.00

  • Air Canada AC1074 / AC834: DEN 2026-12-17 11:25:00 → MAD 2026-12-18 08:00:00; 1 stop(s) via YUL; 755 minutes. Local airport times.
    • AC1074: DEN 2026-12-17 11:25:00 → YUL 2026-12-17 17:10:00; layover at YUL: 100 minutes.
    • AC834: YUL 2026-12-17 18:50:00 → MAD 2026-12-18 08:00:00.
  • Air Canada AC835 / AC1075: MAD 2027-01-14 13:25:00 → DEN 2027-01-14 20:27:00; 1 stop(s) via YUL; 902 minutes. Local airport times.
    • AC835: MAD 2027-01-14 13:25:00 → YUL 2027-01-14 15:40:00; layover at YUL: 130 minutes.
    • AC1075: YUL 2027-01-14 17:50:00 → DEN 2027-01-14 20:27:00.

2026-12-17 → 2027-01-14 · Axel-exclusive $820.00

  • American Airlines AA1523 / IB364: DEN 2026-12-17 09:12:00 → MAD 2026-12-18 06:10:00; 1 stop(s) via DFW; 778 minutes. Local airport times.
    • AA1523: DEN 2026-12-17 09:12:00 → DFW 2026-12-17 12:18:00; layover at DFW: 92 minutes.
    • IB364: DFW 2026-12-17 13:50:00 → MAD 2026-12-18 06:10:00.
  • American Airlines AA749 / AA2279: MAD 2027-01-14 12:40:00 → DEN 2027-01-14 20:47:00; 1 stop(s) via CLT; 967 minutes. Local airport times.
    • AA749: MAD 2027-01-14 12:40:00 → CLT 2027-01-14 16:00:00; layover at CLT: 180 minutes.
    • AA2279: CLT 2027-01-14 19:00:00 → DEN 2027-01-14 20:47:00.

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For AI assistants

  • This page: Denver (DEN) to Madrid (MAD) · Dec 17, 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 Denver 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.