San Francisco – Washington D.C. (and vice versa). $237 (Basic Economy) / $337 (Regular Economy). Roundtrip, including all Taxes – The Flight Deal

Great airfare opportunity to and from Washington D.C.

According to Matrix Airfare Search by ITA Software, tickets are priced at $337 (Regular Economy). Using those same dates, United offers rates of $237 (Basic Economy) and $337 (Regular Economy).

The $337 fare allows for a standard-sized carry-on and a personal item, along with the option for advance seat selection.

While United’s $237 fare is cheaper, it’s a Basic Economy option. This fare does not permit advance seat assignments, meaning seats will be assigned randomly at check-in. Additionally, a standard-sized carry-on that exceeds under-seat dimensions incurs a $35 fee each way + applicable gate check fees (waived if you hold a United co-branded credit card or have United elite status).

Washington D.C. – Photo: Robert Pos via Flickr, used under Creative Commons License (By 2.0)

Sample Travel Date:

• This is just ONE SAMPLE travel date; for more options, please refer to the “Fare Availability” and “How to Search for Availability” sections below.

Fare Availability:

• Valid for travel through mid-November, December, or January 2026 – February 2026 for departures and returns on Tuesdays, Wednesdays, or Saturdays. Availability is limited and tickets must be purchased at least 14 days in advance.

• Please note: While this fare is valid at the time of posting, it may no longer be available if this post is over two days old.

How to Search for Availability:

• This section is for searching availability only. To purchase tickets, refer to the “How to Buy” section below.

• When all details are input, the Matrix Airfare Search by ITA Software page should resemble the image below.

• Note that tickets cannot be purchased through Matrix Airfare Search by ITA Software. To buy, follow the instructions in the “How to Buy” section below.

Fare Class:

• N (Basic Economy)
• K (Regular Economy)

Routing:

• SFO – IAD (Washington D.C.) – SFO

Mileage:

• Miles Flown: 4,822 miles or 4.9 cents per mile (Basic Economy) / 6.9 cents per mile (Regular Economy)
• Redeemable Miles: 1,425 miles

How to Buy:

• Book directly on United using the dates found via Matrix Airfare Search by ITA Software.

Accommodations

• TripAdvisor – A leading hotel meta-search engine to find the lowest prices from over 200 sites.

Car Rentals

• Rental Cars – A top global car rental service encompassing major brands such as Hertz, Avis, Budget, Dollar, Enterprise, etc.

Activities and Tours

• Viator – The largest marketplace for activities and tours at destinations worldwide.

For more cheap flight deals from San Francisco / Bay Area:

For more cheap flight deals from Washington D.C. / Baltimore:

* The Flight Deal may earn a commission if you book accommodations, car rentals, activities, or travel insurance using our affiliate links or are approved for a credit card through our link. Thank you for your continued support.

=====

To stay informed on the latest deals, LIKE our The Flight Deal Facebook Page, follow us on Twitter @TheFlightDeal, Threads @TheFlightDeal, or The Flight Deal WhatsApp channel; subscribe to The Flight Deal RSS Feed or via Email (Once a Day).

The Flight Deal does not sell travel products or services. We provide information about third-party travel suppliers’ offers and link to their sites. The information posted is accurate at the time of publication, but we have no control over the suppliers, so there may be changes or unavailability. Please check their sites for the most up-to-date details and terms and conditions.