$392 Cheap KLM flights Boston (BOS) to Delhi (DEL)

Use the "Price (lowest to highest)" filter on Expedia to find cheap KLM return flights from $725 from BOS to DEL. Affordable one-way options from $392 are available too.**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.

Look for KLM flights from BOS to DEL about one month before you want to leave. The cheapest time to reserve an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of fare class or itinerary, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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 the earliest departure from BOS to DEL with KLM, filter your results by "Morning" and "Early Morning." Choosing an early flight generally means cancellations are less likely.**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.

A 4-star airline rating and the ability to collect points through KLM Flying Blue are the start of the reasons to travel from BOS to DEL with KLM. Plus, when you sign up to Expedia's free One Key™ program, you can earn OneKeyCash™* alongside any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.