Cheap Transatlantic Flights from JFK and Newark: 2026 Guide

London from $349 round-trip on Norse Atlantic out of JFK is the number that gets people's attention, and it's legitimate. These fares show up regularly in January, February, and on certain shoulder-season dates in October. The catch is you need to be flexible and move fast when they drop.

Reykjavik from $329 round-trip on Icelandair out of JFK is actually the cheapest transatlantic route I track consistently from New York. Iceland feels like a stretch destination but it prices like a short-haul flight in the off-peak window, and Icelandair runs a solid operation compared to some of its budget competitors.

Dublin from $399 round-trip on Aer Lingus out of JFK is one of the most underrated fares in this market. Aer Lingus is a proper full-service carrier at a price that regularly undercuts British Airways and United on the same route. Pre-clearance through US customs in Dublin is also a genuinely useful perk when you're flying home exhausted.

Lisbon from $389 round-trip on TAP Air Portugal out of Newark and Paris from $449 round-trip on Air France out of JFK round out the core routes worth watching. TAP runs Newark regularly and those fares are competitive year-round in the off-peak months. Air France at $449 is not always easy to find but it surfaces a few times a year and it's worth jumping on.

Norse Atlantic and Icelandair are the two budget carriers doing real transatlantic volume out of New York, and they are not the same product. Icelandair is a low-cost carrier that operates more like a regional full-service airline, with reasonable seat pitch and a route network that lets you stopover in Reykjavik for free on the way to mainland Europe. Norse Atlantic is closer to the Spirit model applied to a long-haul flight.

On Norse Atlantic, that $349 London base fare from JFK gets you a seat and nothing else. No carry-on bag in the overhead, no meal, no seat selection included. Add a carry-on and a checked bag and you are realistically looking at $80 to $120 in fees depending on when you add them. Book the bags at checkout, not at the gate, because gate bag fees are punishing.

All-in, a Norse Atlantic round-trip to London with one checked bag and seat selection typically lands between $480 and $550. That is still cheaper than most legacy carrier fares to London, but the gap narrows. On a nine-hour flight in a tight seat with no meal included, it is worth doing that math before you book.

The calculus shifts when you are traveling carry-on only and you genuinely do not care about seat selection. Two people flying light to London on Norse for $349 each is $698 total before fees, and that is hard to argue with. Solo traveler with a checked bag who values some comfort? Look at what British Airways or United are charging out of JFK that week before you commit to the budget option.

January and February are the cheapest months to fly transatlantic, and the price difference versus peak summer is significant. The same London route on Norse Atlantic that runs $349 round-trip out of JFK in January will cost $700 to $900 in July. That is not an exaggeration. Summer transatlantic pricing is brutal and the budget carriers do not hold their low fares when demand spikes.

The shoulder season sweet spots are late March and October. Late March fares to Lisbon on TAP out of Newark regularly sit in the $420 to $480 range, which is close to the winter floor without the January weather on both ends. October is excellent for the same reason, and Europe in fall is genuinely pleasant to travel in.

Late March has one specific risk: spring break overlap. The last two weeks of March push prices up fast in some years, so target the very end of the month or the first week of April if your schedule allows. October has no equivalent squeeze until Thanksgiving approaches.

Peak summer, meaning late June through mid-August, is when you should either book very far in advance, accept higher prices, or seriously consider a fall trip instead. Paris on Air France out of JFK in July regularly runs $750 to $1,100 round-trip. The $449 fares exist in the off-peak window, not in summer.

Transatlantic flights need more lead time than domestic routes, and most people underestimate this. For summer travel, book three to four months out. A July trip to Europe ideally means booking in March, not May. By May, the good fares on Norse, Icelandair, and Aer Lingus are mostly gone and you are shopping the leftovers.

Off-peak is more forgiving. January and February trips to Europe can often be booked six to eight weeks out and still find the low fares. The winter window is less competitive and airlines are moving seats. That said, waiting until three weeks out even in January is a risk, and the fares can spike unpredictably.

On gateway cities: London gets all the attention but it is rarely the cheapest city to fly into from New York. Lisbon at $389 round-trip on TAP out of Newark and Dublin at $399 on Aer Lingus out of JFK are consistently cheaper and both cities work well as bases to continue into Europe. Lisbon has direct train and bus connections to Spain, and Dublin is a short flight from every major UK and European city on Ryanair for $30 to $60 one-way.

Flying into a cheaper gateway and connecting onward on a European low-cost carrier is often faster and cheaper than flying directly into a more expensive hub. The total cost of Newark to Lisbon on TAP at $389 plus a $40 Ryanair flight to Madrid frequently beats a direct New York to Madrid fare by $150 or more. Worth checking before you default to the obvious route.