Baltimore – San Francisco (and vice versa). $227 (Basic Economy) / $307 (Regular Economy). Round trip including all taxes: The Flight Deal

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A good sell for nonstop service to/from San Francisco

The $307 fare is a regular economy fare that allows for full-size carry-on bags and personal items, plus advance seat assignment.

United also has a fare of $227, but it’s a basic economy fare. United Basic Economy fares do not allow advance seat assignment. Rather, your seat assignment will be randomly assigned during check-in. Also, regular size carry-on luggage that does not fit under the seat is charged at $35 per way + applicable gate control fees (but free if you have a United co-branded credit card or United elite status).

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San Francisco, California – Photo: Dan Backman via Flickr, used under Creative Commons license (Per 2.0)

Example of travel date:

  • January 20 to 24, 2023
  • This is only ONE SAMPLE travel date, for more availability please follow the “Fare Availability” and “How to Find Availability” instructions below

Rate availability:

  • Valid for travel from early December or January 2023 to early February 2023. Availability is limited. You must purchase at least 7 days prior to departure.
  • Please note that while this fee is valid at the time of posting, if this post is more than two days old, the fee may no longer exist.

How to search for availability:

  • This is just to check availability. To purchase your tickets, scroll down to the “How to Buy” section of this post
  • Use ITA Software’s Matrix Airfare Search and use the following search criteria:
    • Source: ICM
    • Advanced Source Routing Code:
      • routing codes: do
      • extension codes:
        • This tells ITA Software’s Matrix Airfare Search to look for the Basic Economy fare. Use those dates in United and you will be presented with the option to upgrade to a regular cheap rate.
    • Destiny: OFS
      • This works both ways, so SFO can be the source and BWI can be the destination.
    • Return advanced routing code:
      • routing codes: do
      • extension codes:
    • (Click the Advanced Codes link to enable advanced routing code entry)
    • Select “See Lower Rates Calendar”
    • Duration “3-10” (This is just a sample, you can use any 7 day date range like 3-10, 7-14, etc.)
  • Beginner’s Guide on how to use Matrix from ITA Software
  • How to read the airfare rules and use them to your advantage
  • The Matrix Airfare Search by ITA Software search page should be like the following when all values ​​are entered
  • You cannot purchase tickets using ITA Software’s Matrix Airfare Search. To purchase, please follow our instructions in the “How to Buy” section below.

Fare class:

Elite Qualifying Dollars:


  • ICM – OFS (San Francisco) – ICM


  • Miles flown: 4,900 miles
  • redeemable miles: 1,293 miles

How to buy:

  • book on United with dates found in ITA Software’s Matrix Airfare Search.


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For more information on the latest cheap flight deals to San Francisco/Bay Area:

For more information on the latest cheap flight deals to Washington DC/Baltimore:

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The Flight Deal does not sell travel products or services. We provide you with information about offers from third-party travel providers and link you to their sites. The information published by The Flight Deal is valid at the time of publication. However, we have no control over providers and therefore do not guarantee that their offers will not change or become unavailable. We are also not responsible for your products, services or site content. Please refer to their sites for the most up-to-date offer information and all applicable terms and conditions.

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