When it comes to transatlantic travel from the East Coast of the US, New York City is often considered the primary gateway for these flights. When it comes to the ‘big three’ US legacy carriers, each operates a considerable European network from the ‘Big Apple,’ with United Airlines favoring Newark Liberty International Airport (EWR), while American and Delta use John F. Kennedy International Airport. However, for the latter carrier, Boston is another East Coast gateway.

Indeed, according to present scheduling data made available by Cirium, an aviation analytics company, Delta Air Lines has scheduled 20% more departures on its routes to Europe from Boston Logan International Airport (BOS) in the third quarter of this year (July-September) than it did in Q3 of 2025. This is largely due to the addition of two new routes, although others have also had their frequencies boosted.

Two New Routes

Credit: Great Circle Map

All in all, Delta will operate a grand total of 1,104 Europe-bound flights from BOS in the third quarter of this year, up by 184 departures from the same period in 2025. Of these 184 extra flights, 131 are on two brand-new routes this year. Firstly, Delta plans to serve Adolfo Suárez Madrid Barajas Airport (MAD) in Spain daily over the summer, accounting for 92 of the new flights.

Elsewhere in Europe, this year also saw Delta serve Nice-Côte d’Azur Airport (NCE) in the south of France from Boston for the first time. This route commenced operations on May 16, and, with three flights planned every week this summer, the third quarter of this year will see Delta Air Lines operate a grand total of 39 rotations on this corridor from BOS. Paul Baldoni, Delta’s SVP of Network Planning, commented on its new routes to Madrid and Nice.

“By adding nonstop service to Madrid and Nice, we’re enhancing our European network and continuing our commitment to providing an exceptional travel experience from start to finish.”

Delta’s Diverse Transatlantic Network From Boston

Credit: Great Circle Map

Elsewhere, Delta has also carried a large and diverse Boston-based transatlantic network over from last year. For the most part, its existing European routes from Boston will operate daily. Indeed, destinations that fit this billing include the likes of Athens, Barcelona (up from four flights a week last Q3), Dublin, Edinburgh, Lisbon, London Heathrow Airport (LHR), Paris, and Rome Fiumicino. However, not all routes are served daily.

For instance, Delta Air Lines’ most popular transatlantic corridor from BOS will link the facility with Amsterdam Schiphol Airport (AMS) in the Netherlands a grand total of 184 times this Q3, equating to two flights a day. While the frequency has stayed the same, 92 fewer seats are available.

Apart from the aforementioned new route to Nice, the only other transatlantic Delta route from Boston that is not set to be served daily or more this Q3 is the Italian corridor to Milan Malpensa Airport (MXP). In the third quarter of this year, this route will see four flights a week, for a total of 53 departures, up from 52 in 2025.

The Airbus A330-900neo Is The Dominant Aircraft

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Despite operating such a wide range of transatlantic routes from its hub at Boston Logan International Airport, Delta’s fleet strategy for these services is relatively straightforward, with just three aircraft types covering the 1,104 Europe-bound departures in the third quarter of 2026. Here, the Airbus A330-900neo is the dominant aircraft, accounting for 644 of these flights. This represents a proportion of 58.3%, so well over half in total.

Elsewhere, its older counterpart, the A330-300, is Delta’s second-most numerous aircraft type on its European routes out of Boston Logan International Airport, accounting for 276 of the 1,104 departures (25%) in Q3 of 2026. Compared to the 92 it operated in the third quarter of 2025, this represents a 200% annual increase. This leaves the Boeing 767-300ER, which will operate the remaining 184 flights (16.7%).