https://www.secretflying.com/posts/new-york-to-european-cities-from-only-108-one-way-or-252-roundtrip/With Tap Portagal
New York – Madrid: $108
New York – Paris: $121
New York – London: $123
New York – Frankfurt: $125
New York – Dublin: $127
New York – Rome: $127
New York – Amsterdam: $137
New York – Zurich: $137
New York – Barcelona: $137
New York – Milan: $166
New York – Venice: $166
New York – Madrid – New York: $252
New York – Dublin – New York: $274
New York – Paris – New York: $297
New York – Rome – New York: $304
New York – Barcelona – New York: $313
New York – Amsterdam – New York: $321
New York – Zurich – New York: $327
New York – Frankfurt – New York: $352
New York – Venice – New York: $377
New York – Milan – New York: $378
New York – London – New York: $380