There are many cities with 2017 travel deals in the $300s and $400s on major alliance airlines from Boston to Europe for departures January to early June, then late August to October. Spain, Italy, Switzerland, Belgium and Luxembourg have lowest fares. Munich is cheap and there are some London deals for August in the $500s.
This past week had some fantastic low fares in the $400s to Europe for 2017 travel from many airports around the USA, even my regional airport in Monterey, California.
Most of this past week I road tripped to Las Vegas for big city bright lights and a family reunion. In my airfare checks I see Boston is still one of the cities with many airfare deals still available for cheap travel to Europe in 2017.
Boston to Europe Star Alliance Deals
Belgium
Brussels $382-$416 Jan – May 10
Denmark
Germany
Italy
Luxembourg
Portugal
Lisbon $521 United
Spain
Madrid $389 – $430 Jan 8 – June 5; Aug 23 – Oct 13
Alicante $487 (limited dates)
Switzerland
United Kingdom
London $502 *August fare
Manchester $541 (April 1 – May 10)
United Airlines Boston – Newark – Madrid – Newark – Boston
$388.36 round trip Thu Feb 23 – Mon Mar 6
Boston to Europe SkyTeam deals
Belgium
Brussels $387 – $407 Dec 31 – May 10
Denmark
Germany
Munich $464-$485 Jan – April 6
Luxembourg
Portugal
Lisbon
Spain
Switzerland
United Kingdom
London $556 ** July summer fare
Delta Airlines Boston – New York JFK – Zurich – JFK – Boston
$395.16 round trip Sat May 6 – Sun May 14
Boston to Europe Oneworld Deals
Belgium
Denmark
Germany
Italy
Venice $411 (June)
Portugal
Switzerland
United Kingdom
London $484-$506 Jan 9 – May 11; Aug 20-Oct 12
Manchester $532 Aer Lingus Feb-March
American Airlines Boston – Philadelphia – Venice – PHL – BOS
$410.56 round trip Sun June 4 – Wed June 14
Loyalty Traveler curated Airfare Deals and Google Flights and Kayak Explore tutorials.