Air Canada are attacking Delta hubs…Summer flights from Minneapolis, Cincinnati, Detroit or Seattle to Budapest, Hungary for only $429 roundtrip.
United Airlines have put many USA to Mexico routes on sale. For example, fly from Minneapolis to Merida, Mexico for only $175 roundtrip.
Cheap flights from many US cities to Guadalajara, Mexico from only $187 roundtrip with United Airlines.
Super cheap flights from many US cities to Europe from only $69 one-way. Also works in reverse (from €129 one-way).
American Airlines have put Atlanta, Detroit, Minneapolis or Cincinnati to many Spanish cities on sale. For example, fly from Atlanta to Ibiza, Spain for only $396 roundtrip.
Oneworld airlines have put East and West Coast USA cities to Europe on sale over the summer. For example, fly from New York to Milan, Italy for only $358 roundtrip
Error Fare, Business Class, summer, Christmas and New Year flights from many US cities to Port-au-Prince, Haiti for only $374 roundtrip with American Airlines.
Summer flights from Cincinnati, Ohio to Lyon or Paris, France from only $422 roundtrip with American Airlines and Iberia.
Very cheap flights from Atlanta, Minneapolis, Detroit or Cincinnati to many European cities from only $441 roundtrip with American Airlines.