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Delta Air Lines is the second-largest nonstop operator between the US and Europe. In the all-important Q3 2026 (July-September), the SkyTeam member has an average of 95 daily departures across the North Atlantic. That is higher than in any other quarter in history.
Two of the US Big Three carriers will have a record number of European flights in the third quarter. Cirium Diio data shows that Delta’s offering has grown by 1.6% compared to its prior record, which was set in Q3 2025. In contrast, American Airlines’ growth has far exceeded its prior high, but from a much lower base; that’ll be explored separately. Then there’s United, whose offering has reduced year-over-year.
Delta’s Record European Flights In Q3
The figure above charts the carrier’s Q3 departures between the US and Europe since 2004. Some 95 takeoffs are planned on a typical day in the peak summer. While that’s a record, Delta’s growth compared with Q3 2025 of 1.6% was lower than for the whole US-Europe market (2.4%). As such, despite the airline’s highest-ever frequency, its overall share of the market has reduced marginally in the past year.
You might think that Delta’s growth might be influenced by using lower-capacity aircraft. That’s not really the case. Its average seats per flight in Q3 will be 258, flat year-over-year, and up by a modest 5.5% compared to before the pandemic in 2019. A lack of long-haul narrowbody flights contributes to this, with only two Boeing 757 routes to Iceland. Delta’s approach to such aircraft to Europe is markedly different than American’s and particularly United’s.
All These European Airports Will Be Served In Q3
Sticking with the same three months shows that Delta’s frames will be seen in 28 European airports. As you probably know, Malta, Olbia, and Porto are new additions in 2026. All three routes will be served from New York JFK, which is, of course, Delta’s top hub for European flights. And the 216-seat Boeing 767-300ER, which is the airline’s second-lowest-capacity widebody equipment.
Delta will take off to Olbia on May 20, with a four-weekly service. The next day, the airline will debut in Porto, with a daily operation. Finally, the first flight to Malta will take place on June 7, with a three-weekly frequency. All three routes will, of course, be seasonal.
Compared to Q3 2025, some already-served airports have grown strongly, such as Madrid (+50% more Delta flights), Nice (+29%), Keflavik (+12%), and Shannon (+11%). Of course, it is not all good news, as Geneva and London Gatwick have been removed from its network. They’ll still be accessible with Delta’s codeshare and alliance partners. Air France, for example, will return to Gatwick this year.
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Some 81 European Routes Are Planned
Delta’s Q3 network of 81 European routes will operate from ten hubs, focus cities, and other airports: JFK (26 routes), Atlanta (17), Boston (12), Detroit (eight), Minneapolis (seven), Seattle (five), Salt Lake City (three), Cincinnati (one), Los Angeles (one), and Tampa (one).
Seven new routes are planned. In addition to the three markets mentioned in the previous section, Delta will fly from Boston to Madrid (begins May 6; daily A330-900) and Nice (starts May 16; three weekly A330-300). Then there’s Seattle to Barcelona (begins May 17; three weekly A330-900) and Rome Fiumicino (starts May 6; four weekly A330-900). JetBlue began flying between Boston and the Spanish capital last year, while Alaska Airlines will take off from Seattle to Rome in April.
Compared to the same three months in 2025, Delta has ceased flying from JFK to Brussels, Gatwick, and Geneva. They are as far from the seven new routes as could be imagined. Indeed, the emphasis continues to be on Southern Europe, both for inbound tourism from Americans and visiting friends and relatives.
