Transatlantic Routes, Priced

The cheapest transatlantic routes in the country

Every route below is a real round trip found on August 30, 2026 for a one-week economy trip departing in the following six months. What stands out is not any single fare, it is the pattern: almost every cheap transatlantic route lands in the north. Helsinki, Stockholm, Copenhagen, Oslo and Reykjavik take most of the list, and the two gateways that reach them cheapest are not the ones anybody expects.

Seattle appearing above New York on Nordic routes is geography, not a glitch. The polar great-circle from the Pacific Northwest to Scandinavia is genuinely short, and both Seattle and Minneapolis have carriers flying it. We work through that finding in full here.

Where your departure airport is worth the most

This is the most useful thing in the dataset and the least discussed. For any European city, the gap between the cheapest and most expensive US gateway is what shopping departure airports is worth to you. It is not a constant — it ranges from $120 on Krakow to $552 on London, depending entirely on where you are going.

London swings $552, from $405 out of Orlando to $957 out of Dallas. Same destination, same search, same day. On a route like that, driving or connecting to a better gateway can be worth more than any booking tactic.

And where it is worth almost nothing

The reverse is just as actionable. On these routes the whole country pays roughly the same, so shopping airports is wasted effort — book from wherever you actually live.

Routes by departure city

Every gateway we priced, with its cheapest European route. Departure-city guides publish into the cheap flights hub; Boston is live now with all 18 of its nonstop European routes and what the nonstop premium costs on each.

Cheapest one-week economy round trip found on August 30, 2026, departing within six months. Origins are metros: New York covers JFK, LaGuardia and Newark. Boston’s best three on the day were Helsinki at $390, Oslo at $422, Stockholm at $437.

Which US airports are gaining and losing Europe routes

Route coverage counts launches, and the rare withdrawal story counts cuts. Neither answers the question you actually have, which is whether your airport is gaining or losing ways to reach Europe. That needs both lists.

20 nonstops arriving against 8 leaving is a net of +12 — and almost all of it lands in one place. New York alone takes 10 of the 20 arrivals. Strip it out and the rest of the country nets +3. 6 US airports lose a route and gain nothing.

Denver is the one to look at. It gains a United nonstop to Paris and loses Aer Lingus to Dublin in the same twelve months, netting exactly zero — a different airline, a different hub, and no change in how many ways there are out of the city. Seattle gains two and keeps Dublin only for the summer, which the table counts apart rather than netting against the gains.

And on the European side

Barcelona, Manchester, Dublin lose US service on balance, and Barcelona is the interesting one: it gains an American nonstop from Charlotte and loses three LEVEL routes, so a city that appears on the 2027 launch list is still down two. Paris gains three — from Austin, Denver and Seattle — which is more than any European city gains from anyone.

Arrivals from 20 announced 2027 routes; departures from 9 withdrawals. Both are sourced route by route, and neither is our own observation — see how we source route news.

Common questions

What is the cheapest transatlantic route from the US?

On August 30, 2026, the cheapest of 1,037 US-to-Europe round trips priced was Washington DC to Helsinki at $388. The cheap end of the market is overwhelmingly northern: Helsinki, Stockholm, Copenhagen, Oslo and Reykjavik take most of the lowest fares, not Lisbon or Barcelona.

Does it matter which US airport I fly to Europe from?

Enormously on some routes and barely at all on others. Across 26 US gateways, Krakow varied by only $120 while London varied by $552. Check the spread for your destination before assuming a drive to a bigger airport is worth it.

Which European cities are cheapest to fly into from the US?

Ranked by median fare across all 26 US gateways, the cheapest are Stockholm at $617, Reykjavik at $632, Oslo at $638. Ranking by median rather than by the single cheapest fare matters: a minimum is a fact about one airport on one day, a median is a fact about the city.

How often are these fares updated?

Monthly, and the whole grid is re-collected in one sitting rather than piecemeal. A half-updated grid silently compares fares gathered weeks apart, and every ranking derived from it inherits that error. This grid was collected on August 30, 2026.