The most exciting new airline routes of 2025 (so far)

What's the most exciting new airline route of the year?

Ask 10 different travelers and you might get 10 different opinions. The question doesn't come with an easy answer, but — as you might expect from TPG — we're happy to share our thoughts on it.

Our aviation team looked at all of the new routes launched in the first half of 2025, and we came up with this top 15 list. (Hint: They largely mirror what we predicted at the end of last year.)

The more you know: The best time to book flights for the cheapest airfare

We stopped short of naming a winner — check back for that at the end of the year — but these were the new routes that intrigued us.

Listed in alphabetical order by airline, here are the top 15 for the first half of 2025, along with why they were chosen.

Map watching: The award for 'sexiest new route' of 2023 goes to ... | And 2024 ...

Aer Lingus

Indianapolis and Nashville to Dublin

These routes may not normally stand out as candidates for a "most exciting" list. But the Irish carrier's new 2025 routes are noteworthy since they're being operated with its new Airbus A321XLR, a narrow-body jet with a particularly long range. Look for more "long, thin" routes to be added in the years ahead as more carriers become operators of the A321XLR.

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• Aer Lingus adds new US city (Indy) with flights on new Airbus A321XLR jets
• Aer Lingus expands to Nashville, will add nonstop flights to Dublin

Allegiant Air

Belleville, Illinois, to Gulf Shores, Alabama

If you're a fan of unusual airline routes, this new flight from Allegiant Air is as obscure as they come. But it highlights the type of niche market that Allegiant has cultivated this century: expanding to small airports with little or no commercial airline service just outside larger metro areas. And, spoiler alert: More are coming.

• Allegiant adds 44 new routes, 3 new cities in blockbuster expansion
• Allegiant adds 5 new domestic routes that aren't operated by any other airline

Alaska Airlines (and Hawaiian Airlines)

Seattle to Tokyo

Seattle to Tokyo is not normally a groundbreaking route. But, when it's your airline's first-ever long-haul overseas route — as it was for Alaska Airlines — it garners extra attention. Alaska first operated this flight with merger partner Hawaiian Airlines' Airbus A330s, but this will eventually fly on state-of-the-art Boeing 787 Dreamliners — first with Hawaiian's livery, but eventually with Alaska's.

And, stay tuned. The carrier is getting set to unveil an all-new flagship international experience as it plans a dozen long-haul routes out of Seattle in the coming years.

• Alaska Airlines enters its intercontinental era with first-ever nonstop flight to Asia, operated by Hawaiian
• Alaska Airlines upgrades Seattle-Tokyo route with Hawaiian's new Boeing 787 Dreamliner

American Airlines

Carlsbad, California, to Phoenix

Earlier this year, American became the only major airline brand operating from California's McClellan–Palomar Airport (CLD), located about 35 miles north of San Diego. While Carlsbad may not be the most "exciting" new destination for an airline, it underscores American's strategy of carving out niche markets without direct competition from its primary rivals. Other recent similar additions include Utah's Provo Municipal Airport (PVU) and Cape Cod Gateway Airport (HYA) in Hyannis, Massachusetts.

• American Airlines adds new domestic destination in Southern California
• American adds 4 new routes, cuts 2 others and grows in Cape Cod
• American adds new service to Provo, its 228th domestic city; will take on budget rivals

Miami to South Caicos in Turks and Caicos

When it launched this route earlier this year, American became the only major airline at the airport, which otherwise has only small regional operators flying within Turks and Caicos. Historically, U.S. travelers flying to Turks and Caicos have had to fly to the larger Providenciales International Airport (PLS). Not coincidentally, American's unique new island service will connect travelers to a brand-new Marriott Bonvoy resort that made our list of the most exciting hotel openings in 2025.

• American adds cool new Caribbean destination, cuts Miami transcon route in big network update
• Best ways to book flights to the Caribbean using points and miles

Philadelphia to Edinburgh

It wasn't that long ago that some industry observers wondered if Philadelphia's days were numbered as a major international hub for American. Put those doubts aside. American has returned its transatlantic focus from New York back to Philadelphia, which can count this route to Scotland as well as service to Milan as proof.

We should note: Philly will also gain international service next month, featuring the airline's brand-new Flagship Suites on its Boeing 787-9P Dreamliner.

• American Airlines adds 5 new European routes, boosts 10 flights for summer 2025

Cape Air

Boston to Islip, New York

An unlikely candidate for our list, Cape Air takes this spot more for "palace intrigue" than anything else. When JetBlue abruptly ended this route less than two weeks after starting it, Long Island's connection to Boston seemed lost. Cape Air said not so — announcing its own turboprop service on the route to help partially backfill JetBlue's discontinued link.

• Cape Air backfills JetBlue's dropped Boston-Long Island route in 5-route expansion
• JetBlue cuts 2 Boston routes with barely any notice

Delta Air Lines

New York to Sicily

Sicily has soared in popularity in recent years — thanks in no small part to "The White Lotus" — but there hasn't been a regular nonstop flight from the U.S. to this Italian island. That changed this summer when both Delta and United Airlines added service to Sicily. Delta announced its new route first, unveiling service to Sicily's lesser-served city of Catania.

• Delta unveils 12 new and expanded transatlantic routes as part of largest-ever summer schedule
• The race to Sicily begins as United's latest inaugural flight lands in Italy

Neos

New York to Bari, Italy

Those looking for an off-the-beaten-path destination got a boost with this Italian carrier's new service to Italy's Puglia region — an area known for its proximity to the Adriatic Sea, delectable food and historic medieval architecture. Neos claims the route is the first-ever nonstop service between the U.S. and Bari Karol Wojtyla Airport (BRI), the capital of Italy's Puglia region.

• Italy's Puglia region on the Adriatic coast gets its first-ever nonstop to New York

United Airlines

Newark to Bilbao, Spain

Long touted as one of Europe's under-the-radar destinations, Bilbao has typically been difficult to reach for U.S. travelers. That changed this summer when United launched seasonal Boeing 757 nonstops from Newark.

• United launches unique global expansion for summer, adding 8 cities, 13 routes

Newark to Madeira, Portugal

Long popular with European vacationers, this island off the northwest coast of Africa is known for wine, rugged volcanic scenery and a bewildering set of climates. It had been difficult for most Americans to get to — until United began nonstop flights from Newark.

• United launches unique global expansion for summer, adding 8 cities, 13 routes

Newark to Nuuk, Greenland

A top candidate for "route of the year," United's new service to Nuuk dominated aviation headlines earlier in June. As you might expect, TPG was on board the historic inaugural flight — the first-ever regular service by a U.S. carrier to Greenland.

• What's next after Greenland? United has big off-the-beaten-path plans for 2026 and beyond
• United Airlines connects the US to Greenland in historic new nonstop flight

Tokyo to Ulaanbaatar, Mongolia

Another top candidate for "route of the year," you could almost cut and paste the above text for Greenland for United's new service to Mongolia. However, unlike United's Greenland service, this new service comes not from the U.S., but from United's hub at Narita International Airport (NRT). One-stop service is available from several U.S. cities. And, yes, TPG was on board this inaugural flight too.

• United just flew where no US airline has gone: On board the historic inaugural flight to Mongolia
• United's new Asia strategy: 'You don't double down on something that does poorly'
• United launches unique global expansion for summer, adding 8 cities, 13 routes

Washington to Dakar, Senegal

United chose to bolster its Washington hub at Dulles International Airport (IAD) with new service to Senegal. While new routes to South Africa and Morocco have generated the most buzz in recent years, this new West Africa service from United stands out among 2025's new routes so far.

• United launches unique global expansion for summer, adding 8 cities, 13 routes

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