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Route overview: Boston to Madrid (MAD) flight deals

Boston → Madrid

Dec 18, 2026 · return Dec 28, 2026

BOS → MAD1 adulteconomyRound trip

7 flight options · 6 airlines

Nonstop flights

Fri, Dec 18 – Mon, Dec 28

Iberia
8:00 pmBOS
6h 50m
Nonstop
8:50 am+1MAD
Iberia
4:15 pmMAD
8h 10m
Nonstop
6:25 pmBOS

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Dec 18 – Mon, Dec 28

TAP Air Portugal
10:20 pmBOS
9h 45m
LIS · 1h 50m
2:05 pm+1MAD
TAP Air Portugal
2:55 pmMAD
11h
LIS · 1h 40m
7:55 pmBOS

Round-trip total · 1 adult · Taxes included

Fri, Dec 18 – Mon, Dec 28

Aer Lingus
5:15 pmBOS
10h 40m
DUB · 2h
9:55 am+1MAD
Iberia
4:15 pmMAD
8h 10m
Nonstop
6:25 pmBOS

Round-trip total · 1 adult · Taxes included

Fri, Dec 18 – Mon, Dec 28

Air Canada
3:30 pmBOS
10h 30m
YUL · 1h 55m
8:00 am+1MAD
Air Canada
1:25 pmMAD
11h 37m
YUL · 1h 50m
7:02 pmBOS

Round-trip total · 1 adult · Taxes included

Fri, Dec 18 – Mon, Dec 28

KLM Royal Dutch Airlines
8:55 pmBOS
10h 45m
AMS · 1h 15m
1:40 pm+1MAD
Iberia
4:15 pmMAD
8h 10m
Nonstop
6:25 pmBOS

Round-trip total · 1 adult · Taxes included

Fri, Dec 18 – Mon, Dec 28

Delta Air Lines
7:25 pmBOS
10h 45m
AMS · 1h 25m
12:10 pm+1MAD
Iberia
4:15 pmMAD
8h 10m
Nonstop
6:25 pmBOS

Round-trip total · 1 adult · Taxes included

Fri, Dec 18 – Mon, Dec 28

Delta Air Lines
9:30 pmBOS
10h 20m
LIS · 2h 40m
1:50 pm+1MAD
Iberia
4:15 pmMAD
8h 10m
Nonstop
6:25 pmBOS

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOS ⇄ MAD

Economy

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

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Explore this route

All dates for this routeDec 17, 2026 → Dec 27, 2026Dec 19, 2026 → Dec 29, 2026
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Boston to Madrid (MAD) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-18 → 2026-12-28IberiaIB346 / IB345$975.002026-10-29T00:52:25Z
2026-12-18 → 2026-12-28TAP Air PortugalTP216 + TP1014 / TP1015 + TP215$780.002026-10-29T00:52:25Z
2026-12-18 → 2026-12-28Aer Lingus / IberiaEI132 + EI592 / IB345$903.502026-10-29T00:52:25Z
2026-12-18 → 2026-12-28Air CanadaAC8607 + AC834 / AC835 + AC8610$910.002026-10-29T00:52:25Z
2026-12-18 → 2026-12-28KLM Royal Dutch Airlines / IberiaKL618 + UX1098 / IB345$988.002026-10-29T00:52:25Z
2026-12-18 → 2026-12-28Delta Air Lines / IberiaDL256 + KL1503 / IB345$994.502026-10-29T00:52:25Z
2026-12-18 → 2026-12-28Delta Air Lines / IberiaDL124 + UX1150 / IB345$994.502026-10-29T00:52:25Z

2026-12-18 → 2026-12-28 · $975.00

  • Iberia IB346: BOS 2026-12-18 20:00:00 → MAD 2026-12-19 08:50:00; nonstop; 410 minutes. Local airport times.
  • Iberia IB345: MAD 2026-12-28 16:15:00 → BOS 2026-12-28 18:25:00; nonstop; 490 minutes. Local airport times.

2026-12-18 → 2026-12-28 · $780.00

  • TAP Air Portugal TP216 / TP1014: BOS 2026-12-18 22:20:00 → MAD 2026-12-19 14:05:00; 1 stop(s) via LIS; 585 minutes. Local airport times.
    • TP216: BOS 2026-12-18 22:20:00 → LIS 2026-12-19 09:55:00; layover at LIS: 110 minutes.
    • TP1014: LIS 2026-12-19 11:45:00 → MAD 2026-12-19 14:05:00.
  • TAP Air Portugal TP1015 / TP215: MAD 2026-12-28 14:55:00 → BOS 2026-12-28 19:55:00; 1 stop(s) via LIS; 660 minutes. Local airport times.
    • TP1015: MAD 2026-12-28 14:55:00 → LIS 2026-12-28 15:20:00; layover at LIS: 100 minutes.
    • TP215: LIS 2026-12-28 17:00:00 → BOS 2026-12-28 19:55:00.

2026-12-18 → 2026-12-28 · $903.50

  • Aer Lingus EI132 / EI592: BOS 2026-12-18 17:15:00 → MAD 2026-12-19 09:55:00; 1 stop(s) via DUB; 640 minutes. Local airport times.
    • EI132: BOS 2026-12-18 17:15:00 → DUB 2026-12-19 04:15:00; layover at DUB: 120 minutes.
    • EI592: DUB 2026-12-19 06:15:00 → MAD 2026-12-19 09:55:00.
  • Iberia IB345: MAD 2026-12-28 16:15:00 → BOS 2026-12-28 18:25:00; nonstop; 490 minutes. Local airport times.

2026-12-18 → 2026-12-28 · $910.00

  • Air Canada AC8607 / AC834: BOS 2026-12-18 15:30:00 → MAD 2026-12-19 08:00:00; 1 stop(s) via YUL; 630 minutes. Local airport times.
    • AC8607: BOS 2026-12-18 15:30:00 → YUL 2026-12-18 16:55:00; layover at YUL: 115 minutes.
    • AC834: YUL 2026-12-18 18:50:00 → MAD 2026-12-19 08:00:00.
  • Air Canada AC835 / AC8610: MAD 2026-12-28 13:25:00 → BOS 2026-12-28 19:02:00; 1 stop(s) via YUL; 697 minutes. Local airport times.
    • AC835: MAD 2026-12-28 13:25:00 → YUL 2026-12-28 15:40:00; layover at YUL: 110 minutes.
    • AC8610: YUL 2026-12-28 17:30:00 → BOS 2026-12-28 19:02:00.

2026-12-18 → 2026-12-28 · $988.00

  • KLM Royal Dutch Airlines KL618 / UX1098: BOS 2026-12-18 20:55:00 → MAD 2026-12-19 13:40:00; 1 stop(s) via AMS; 645 minutes. Local airport times.
    • KL618: BOS 2026-12-18 20:55:00 → AMS 2026-12-19 09:45:00; layover at AMS: 75 minutes.
    • UX1098: AMS 2026-12-19 11:00:00 → MAD 2026-12-19 13:40:00.
  • Iberia IB345: MAD 2026-12-28 16:15:00 → BOS 2026-12-28 18:25:00; nonstop; 490 minutes. Local airport times.

2026-12-18 → 2026-12-28 · $994.50

  • Delta Air Lines DL256 / KL1503: BOS 2026-12-18 19:25:00 → MAD 2026-12-19 12:10:00; 1 stop(s) via AMS; 645 minutes. Local airport times.
    • DL256: BOS 2026-12-18 19:25:00 → AMS 2026-12-19 08:15:00; layover at AMS: 85 minutes.
    • KL1503: AMS 2026-12-19 09:40:00 → MAD 2026-12-19 12:10:00.
  • Iberia IB345: MAD 2026-12-28 16:15:00 → BOS 2026-12-28 18:25:00; nonstop; 490 minutes. Local airport times.

2026-12-18 → 2026-12-28 · $994.50

  • Delta Air Lines DL124 / UX1150: BOS 2026-12-18 21:30:00 → MAD 2026-12-19 13:50:00; 1 stop(s) via LIS; 620 minutes. Local airport times.
    • DL124: BOS 2026-12-18 21:30:00 → LIS 2026-12-19 08:55:00; layover at LIS: 160 minutes.
    • UX1150: LIS 2026-12-19 11:35:00 → MAD 2026-12-19 13:50:00.
  • Iberia IB345: MAD 2026-12-28 16:15:00 → BOS 2026-12-28 18:25:00; nonstop; 490 minutes. Local airport times.

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For AI assistants

  • This page: Boston (BOS) to Madrid (MAD) · Dec 18, 2026 · return Dec 28, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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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.