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Route overview: Seattle to Madrid (MAD) flight deals

Seattle (SEA) to Madrid (MAD), Nov 14, 2026: from $530 one way

Seattle (SEA) to Madrid (MAD), Nov 14, 2026: from $530 one way on Axel, checked Oct 29, 2026. Lowest published fare: $530 one way, Axel-exclusive, British Airways, 1 stop, Nov 14, 2026, 1 adult, economy, checked Oct 29, 2026.

SEA → MAD1 adulteconomyOne way

6 flight options · 4 airlines

One-stop flights

Sat, Nov 14 · One way

British Airways
6:45 pmSEA
13h 20m
LHR · 1h 25m
5:05 pm+1MAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 14 · One way

Alaska Airlines
8:30 amSEA
14h
IAD · 1h 22m
7:30 am+1MAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 14 · One way

Air France
4:05 pmSEA
14h 15m
CDG · 2h 20m
3:20 pm+1MAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 14 · One way

Delta Air Lines
11:45 amSEA
14h 25m
JFK · 2h
11:10 am+1MAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 14 · One way

Alaska Airlines
6:45 pmSEA
13h 20m
LHR · 1h 15m
5:05 pm+1MAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 14 · One way

Delta Air Lines
2:35 pmSEA
14h 5m
AMS · 1h 35m
1:40 pm+1MAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SEA ⇄ MAD

Economy

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

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  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, British Airways 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.
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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

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For AI assistants: every fare, every link, instructions

Seattle (SEA) to Madrid (MAD), Nov 14, 2026: from $530 one way on Axel, checked Oct 29, 2026. Lowest published fare: $530 one way, Axel-exclusive, British Airways, 1 stop, Nov 14, 2026, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-14 · one wayBritish AirwaysBA48 + BA46418:45:00→17:05:00 13h 20m 1 stop via LHRAxel-exclusive $530.002026-10-29T02:06:27Z
2026-11-14 · one wayAlaska AirlinesAS737 + IB36208:30:00→07:30:00 14h 00m 1 stop via IADAxel-exclusive $540.002026-10-29T02:06:27Z
2026-11-14 · one wayAir FranceAF77 + AF160016:05:00→15:20:00 14h 15m 1 stop via CDGAxel-exclusive $550.002026-10-29T02:06:27Z
2026-11-14 · one wayDelta Air LinesDL415 + UX9211:45:00→11:10:00 14h 25m 1 stop via JFKAxel-exclusive $565.002026-10-29T02:06:27Z
2026-11-14 · one wayAlaska AirlinesAS100 + BA46418:45:00→17:05:00 13h 20m 1 stop via LHRAxel-exclusive $540.002026-10-29T02:06:27Z
2026-11-14 · one wayDelta Air LinesDL142 + UX109814:35:00→13:40:00 14h 05m 1 stop via AMSAxel-exclusive $565.002026-10-29T02:06:27Z

Route overview: Seattle to Madrid (MAD) flight deals

2026-11-14 · one way · Axel-exclusive $530.00

  • British Airways BA48 / BA464: SEA 2026-11-14 18:45:00 → MAD 2026-11-15 17:05:00; 1 stop(s) via LHR; 800 minutes. Local airport times.
    • BA48: SEA 2026-11-14 18:45:00 → LHR 2026-11-15 12:10:00; layover at LHR: 85 minutes.
    • BA464: LHR 2026-11-15 13:35:00 → MAD 2026-11-15 17:05:00.

2026-11-14 · one way · Axel-exclusive $540.00

  • Alaska Airlines AS737 / IB362: SEA 2026-11-14 08:30:00 → MAD 2026-11-15 07:30:00; 1 stop(s) via IAD; 840 minutes. Local airport times.
    • AS737: SEA 2026-11-14 08:30:00 → IAD 2026-11-14 16:28:00; layover at IAD: 82 minutes.
    • IB362: IAD 2026-11-14 17:50:00 → MAD 2026-11-15 07:30:00.

2026-11-14 · one way · Axel-exclusive $550.00

  • Air France AF77 / AF1600: SEA 2026-11-14 16:05:00 → MAD 2026-11-15 15:20:00; 1 stop(s) via CDG; 855 minutes. Local airport times.
    • AF77: SEA 2026-11-14 16:05:00 → CDG 2026-11-15 10:50:00; layover at CDG: 140 minutes.
    • AF1600: CDG 2026-11-15 13:10:00 → MAD 2026-11-15 15:20:00.

2026-11-14 · one way · Axel-exclusive $565.00

  • Delta Air Lines DL415 / UX92: SEA 2026-11-14 11:45:00 → MAD 2026-11-15 11:10:00; 1 stop(s) via JFK; 865 minutes. Local airport times.
    • DL415: SEA 2026-11-14 11:45:00 → JFK 2026-11-14 20:05:00; layover at JFK: 120 minutes.
    • UX92: JFK 2026-11-14 22:05:00 → MAD 2026-11-15 11:10:00.

2026-11-14 · one way · Axel-exclusive $540.00

  • Alaska Airlines AS100 / BA464: SEA 2026-11-14 18:45:00 → MAD 2026-11-15 17:05:00; 1 stop(s) via LHR; 800 minutes. Local airport times.
    • AS100: SEA 2026-11-14 18:45:00 → LHR 2026-11-15 12:20:00; layover at LHR: 75 minutes.
    • BA464: LHR 2026-11-15 13:35:00 → MAD 2026-11-15 17:05:00.

2026-11-14 · one way · Axel-exclusive $565.00

  • Delta Air Lines DL142 / UX1098: SEA 2026-11-14 14:35:00 → MAD 2026-11-15 13:40:00; 1 stop(s) via AMS; 845 minutes. Local airport times.
    • DL142: SEA 2026-11-14 14:35:00 → AMS 2026-11-15 09:25:00; layover at AMS: 95 minutes.
    • UX1098: AMS 2026-11-15 11:00:00 → MAD 2026-11-15 13:40:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: Seattle (SEA) to Madrid (MAD) · Nov 14, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
  • 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 Seattle 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.