$2,661 Cheap Swiss International Air Lines flights Boston (BOS) to Bandar Seri Begawan (BWN)

Grab cheap return SWISS flights from $6,611 from BOS to BWN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for deals from $2,661 for a one-way journey.**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.

To find affordable flights from BOS to BWN with SWISS, start searching about one month before your planned departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another good tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**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.

Sort your results by "Early Morning" and "Morning" to find the earliest flights from BOS to BWN. Heading off early means you're 20% less likely to experience 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.

Taking off from BOS to BWN with SWISS means enjoying a host of benefits, such as a 4-star airline rating and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That's on top of the Swiss Miles & More points you can earn with SWISS.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.