
United Flight 9721 Deals & Information (2025/2026)
Wander Wisely with exceptional service, 24/7 supportOpens in a new window
Feel at ease with free flight cancellations within 24 hours of booking
Change your flight without a fee on select flights
United Flight 9721 Route Deals From $474
The cheapest prices found with in the last 7 days for return flights were $548 and $474 for one-way flights to Zürich for the period specified. Prices and availability are subject to change. Additional terms apply.
BOS
Logan Intl.
ZRH
Zürich
$548 Roundtrip, found 4 days ago
$548
Roundtrip
found 4 days ago