$1,518 Cheap KLM flights Bangkok (BKK) to Washington (IAD)

Make use of the “Price (lowest to highest)” filter on Expedia to search for cheap KLM return flights from $2,051 from BKK to IAD. Affordable one-way options from $1,518 are also on offer.**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 return or one-way flights to Washington in January or February. You could find lower fares with KLM during these off-season months.

To discover affordable flights from BKK to IAD with KLM, start your search about one month before your intended 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.

Use the “Nonstop” filter when looking for direct KLM flights from BKK to IAD. You can also compare other carriers servicing the same nonstop journey.

To find the earliest departures from BKK to IAD with KLM, filter your results by “Morning” and “Early Morning.” Booking an early flight usually 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.

KLM flights from Suvarnabhumi Intl. Airport (BKK) to Washington touch down at Washington Dulles Intl. Airport (IAD). This is the main gateway here.

Depart from BKK to IAD with KLM and you’ll enjoy a range of benefits starting with a 4-star airline rating. When booking through Expedia as a KLM Flying Blue and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your ticket type, a fee is typically charged if you cancel or reschedule your flight more than 24 hours after confirmation. To secure plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when looking for flights. For additional information on canceling or changing your reservation, go to “Trips,” select your flight and click on “Manage Booking.”