$635 Cheap United flights Boston (BOS) to Tokyo (NRT)

Finding cheap one-way United Airlines flights from BOS to NRT from $635 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $1,128 for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for return or one-way flights to Tokyo in January or February. You could find an affordable fare with United Airlines during these off-peak months.

Snagging the best United Airlines deals from BOS to NRT is typically all about timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better yet, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It’s smart to kick off your flight search about one month before you plan to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To find out if there’s a direct trip from BOS to NRT with United Airlines or any other airlines, check the “Nonstop” box when searching for flights.

To find the earliest departures from BOS to NRT with United Airlines, filter your results by “Early Morning” and “Morning.” Choosing an early flight generally means you’ll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

United Airlines flights from Logan Intl. Airport (BOS) to Tokyo land at Narita Intl. Airport (NRT). This is the main gateway here.

A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to leave from BOS to NRT with United Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* alongside United Airlines’s loyalty program earnings. It’s yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of booking, but your airline may charge you after that. For further details about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to make changes without being charged, apply the “Changes included” and “No cancel fee” filters when organizing your next break.