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Delta Air Lines · Route guide

Delta Flights from Boston to Madrid (BOS-MAD)

Everything you need to fly Origin to Destination: when to go, who flies it, what it costs, and how to land well.

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1 airline on this route · Daily Summer Seasonal

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Airline

Delta

Aircraft

A330-900neo

Service

Daily Summer Seasonal

Region

Europe

The route

Delta Air Lines is expanding its transatlantic footprint with a new non-stop service connecting Boston Logan International Airport (BOS) to Madrid-Barajas Airport (MAD). Scheduled to launch for the Summer 2026 season, this route provides a vital link for travelers heading from New England to the Spanish capital. Operating with some of the most modern aircraft in Delta's fleet, this service caters to the high demand for European summer travel.

This route operates on a daily frequency during the summer season, utilizing the state-of-the-art Airbus A330-900neo. The flight connects the historic hub of Boston directly with the cultural heart of Spain, offering a flight duration of approximately seven hours eastbound.

The addition of the BOS-MAD route strengthens Delta's position in the competitive Boston market. It offers a premium direct alternative for business travelers and tourists alike, reducing the need for connections through other major hubs like New York or Atlanta.

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Airports

Taking off, touching down.

Check-in, security, connections and getting into town at both ends of the flight.

Departure

Boston Logan International Airport (BOS)

AIR

Check-in: Delta international flights typically depart from Terminal E; ensure you check in at least 3 hours before departure.
Security: TSA PreCheck is available in Terminal E, but peak summer travel can lead to longer wait times.
Connections: BOS is well-connected via the Silver Line and Blue Line MBTA services.

Arrival

Adolfo Suarez Madrid-Barajas Airport (MAD)

BOS

On arrival: Delta usually operates out of Terminal 4 or 4S; follow signs for 'Llegadas' to reach immigration.
Ground transport: The Metro Line 8 and the Cercanias train provide quick access to the city center.
Planning ahead: Automated border control gates are available for eligible passport holders to speed up entry.

Timing & fares

When it flies, what it costs.

Schedule & reliability

Schedule: Usually an evening departure from Boston arriving the following morning in Madrid.
Duration: Eastbound flights take roughly 7 hours, while westbound return flights are slightly longer due to headwinds.
Seasonality: Specifically designated as a new Summer 2026 service.
Time zones: Madrid is 6 hours ahead of Boston Eastern Time.

Fares & booking

Booking window: The sweet spot for booking this specific route is 120 to 180 days before departure.
Cabin advice: The A330-900neo features Delta One Suites; look for 'Global Upgrade Certificate' availability if you have Medallion status.
Peak pricing: July is the highest demand month; expect fares to double compared to early May or late September.

Book at least 4 months in advance to secure lower fares for the new 2026 service.
Consider using Delta SkyMiles for high-value redemptions on this transatlantic leg.
Mid-week departures (Tuesday/Wednesday) often offer better pricing than weekend flights.

Peak season

June through August remains the period of highest demand and daily flight utilization.

Shoulder season

May and September offer a balance of pleasant weather and slightly reduced passenger volumes.

Off-peak season

As this is a summer seasonal route, flights may not be available during the winter months.

Tours and experiences at either end

Vetted day trips and activities in Destination and Origin, through our travel partner.

Browse tours

When to fly

Best Time to Fly Origin to Destination

01
Summer (June - August)
Peak season with daily service and the warmest weather for exploring Spain.
02
Late Spring (May)
Excellent shoulder season weather with potentially lower launch-window pricing.

Trip planning

Who this route suits best.

Leisure Travelers

Direct access to Madrid's world-class museums and culinary scene.

Business Professionals

Efficient overnight flight allowing for a full work day upon arrival in Europe.

Expats and Students

Convenient link for the large academic population in Boston moving between the US and Spain.

Connections & alternatives

Barcelona

Quick domestic flights or high-speed AVE trains from Madrid.

Lisbon

Madrid is a common gateway for travelers heading further west into Portugal.

Marrakech

Easy connections from MAD to North African destinations via partner airlines.

Field notes

Travel Tips for the Origin-Destination Route

Visa & entry

US citizens will require a valid passport for at least six months beyond their stay.
Starting in 2026, the ETIAS travel authorization may be required for US travelers entering the Schengen Area.
Ensure you have proof of onward travel or a return ticket ready for Spanish immigration.

Airport transfers

A flat-rate taxi fee of approximately 33 Euros applies for trips from the airport to central Madrid.
The Airport Express bus (Exprés Aeropuerto) runs 24/7 to the Atocha train station.
Consider purchasing a Multi Card for the Madrid Metro if you plan on using public transit frequently.

Baggage & transit

Delta's international baggage policy applies; check your cabin class for weight allowances.
Madrid is a major hub for Iberia; this route is excellent for those connecting to other Spanish cities.
Use the Fly Delta app to track your checked bags in real-time across the Atlantic.

Checklist

Confirm ETIAS status for 2026 travel
Pack a Type C or Type F power adapter for Spain
Download the Madrid Metro map offline
Notify your bank of international travel to Boston and Madrid

Carriers

Airlines Flying Origin to Destination

Delta

Daily flights during the summer season

Exclusively using the Airbus A330-900neo for this route.

FAQ

Common questions.

Straight answers about flying Origin to Destination.

When does the Delta Boston to Madrid flight start?

The service is announced to begin for the Summer 2026 season.

Which aircraft does Delta use for the BOS to MAD route?

Delta operates this route using the Airbus A330-900neo, which features their latest cabin interiors.

How long is the flight from Boston to Madrid?

The average flight time is approximately 7 hours eastbound and about 8 hours westbound.

Is the Boston to Madrid flight daily?

Yes, Delta has scheduled this as a daily service for the summer season.

Which terminal does Delta use at Boston Logan for Madrid flights?

Delta international departures to Madrid typically fly out of Terminal E at Boston Logan.

Keep exploring

Where to next.

Structured data verified

Airports

Boston (BOS)Adolfo Suárez Madrid–Barajas Airport (MAD)Boston Logan International Airport Madrid-Barajas Airport

Countries & layovers

United States Spain Boston layover guide

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