United – $530 (Regular Economy) / $440 (Basic Economy): Seattle – London, England. Roundtrip, including all Taxes

[The Flight Deal]

A good sale to Madrid The $530 fare is the regular economy fare with advance seat assignment, normal size carry-on and ONE checked bag. United and its partners Air Canada, Austrian, Lufthansa and Swiss Air also have a $440 fare, but that is a Basic Economy fare. There are slightly variations but the one common […]

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