Cheap Lufthansa flights Riga (RIX) to Washington (IAD)

Landing cheap one-way Lufthansa flights from RIX to IAD on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares for your next getaway.**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 cheap flights from RIX to IAD with Lufthansa, begin your search about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday offers 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.

To find the earliest departures from RIX to IAD with Lufthansa, filter your search by "Morning" and "Early Morning." Booking an early flight usually 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.

Flying from RIX to IAD with Lufthansa comes with a host of benefits, such as a 5-star airline rating and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That's on top of the Lufthansa Miles and More points you can earn with Lufthansa.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.