United’s early summer Eurosale –airfares from $374

If you’re looking to land the best discount airfares of the summer (at least the early summer), now’s the time to do the booking. United Airlines is selling seats for as little as $374, each way just now. But you’ve got to move fast to land them.

Book and buy no later than March 31. Then, fly between May 16 and June 4. All of the discount airfares quoted here are each-way, and you’ve got to make a round-trip purchase to get the rate. That’s important to remember when planning your trip.

Other things you’ll need to know: at these rates you’ll have to fly on off-peak days: Monday through Thursday. You’ll also have to stay over at least one Saturday night. Finally, neither taxes nor fees are included in these discount airfares. They’re extra.

Here’s a sampling of the savings United and its Star Alliance partner Lufthansa are offering across the Atlantic this early summer.

- Boston (BOS) to Frankfurt (FRA) $515

- Chicago O’Hare (ORD) to London Heathrow (LHR) $450

- Chicago O’Hare to Madrid (MAD) $479

- Denver (DEN) to Amsterdam (AMS) $543

- Hartford (BDL) to Dublin (DUB) $513

- Los Angeles (LAX) to Rome (FCO) $620

- San Francisco (SFO) to Athens (ATH) $704

- Washington, DC Dulles (IAD) to London Heathrow (LHR) $374

- Washington, DC Dulles to Paris Charles De Gaulle (CDG) $600

© Cheapflights Ltd Jerry Chandler