That’s the best price we could find for select routes by at least $9. Buy Now at DealBase
- On the DealBase landing page, click "United Airlines" in the top line to see this sale.
- We found this price on flights departing from Boston, MA (IAD) with arrival in Washington, D.C. (IAD) on February 4.
- Book this travel deal by January 21 for travel through May 20.
- All prices, dates, and booking details were valid at the time of publication.