Cheapest one-way flights from Boston to Frankfurt in May from $402

AirHint found the following cheapest one-way flights from Boston (BOS) to Frankfurt (FRA) in May 2026 (see full year).

One-Way flights

06 May Aer Lingus
07 May Aer Lingus
03 May TAP
06 May United direct
03 May United direct
07 May United direct

Also check the deals for return flights from Boston to Frankfurt in May.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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