A good sale for nonstop service to/from San Diego.  American has this for slightly cheaper on some dates but it requires a connection.

The $356 fare is the regular fare includes advance seat assignment and normal size carry-on

Alaska Air also have a $256 fare but that is a Basic Economy fare. Alaska Air Basic Economy fares do not allow for any advance seat assignment, changes and boards last.

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Sample Travel Date:

• January 18th – 21st, 2025

• This is just ONE SAMPLE travel date, for more availability, please follow the “Fare Availability” and “How to Search for Availability” instructions below

Fare Availability:

• Valid for travel from mid January 2025 – mid March 2025 for Tuesday, Wednesday and Saturday departures and returns. Availability is limited. Must purchase at least 14  days in advance of departure

• Please note that while this fare is valid at time of posting, if this post is more than two days old, the fare is likely gone.

How to Search for Availability:

• This is just to search for availability. To buy your tickets, scroll down to “How to Buy” section of this post

• Use Matrix Airfare Search by ITA Software and use the following search criteria:
  • Origin: IAD
  • Origin Advanced Routing Code:
    • Routing Codes: as
    • Extension Codes:
      • This is instructing Matrix Airfare Search by ITA Software to search for the Basic Economy fare. Use those dates on Alaska Air and you will be presented with the option to upgrade to the regular economy fare.
  • Destination:  SAN
    • This works both ways, so SAN can be the Origin and IAD can be the Destination
  • Return Advanced Routing Code:
    • Routing Codes: as
    • Extension Codes:
  • (Click on Advanced Codes link to enable advanced routing code input)
  • Select “See calendar of lowest fares”
  • 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 by ITA Software
• How to Read Airfare Rules and Use It to Your Advantage

• The Matrix Airfare Search by ITA Software search page should be like below when all values are inputted

 

• You cannot buy tickets using Matrix Airfare Search by ITA Software. To buy, follow our instructions in the “How to Buy” section below.

Fare Class:

• X (Basic Economy)
• R (Regular Economy)

Routing:

• IAD – SAN (San Diego) – IAD

Mileage:

• Miles Flown: 4,494 miles or 5.7 cents per mile (Basic Economy) / 7.9 cents per mile (Regular Economy)
• Elite Qualifying Miles: 4,494 miles
• Redeemable Miles: 4,494 miles

How to Buy:

• Book on Alaska Air with dates found on Matrix Airfare Search by ITA Software.

 

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For more of the latest cheap Washington D.C. / Baltimore Flight Deals:

• Go to the The Washington D.C. / Baltimore Flight Deals page

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The Flight Deal does not sell travel products or services. We provide you with information about third-party travel suppliers’ offers, and link you to their sites. The information posted by The Flight Deal is valid at the time of publication. However, we have no control over the suppliers, and we therefore do not warrant or guarantee that their offers will not change or become unavailable. Nor are we responsible for their products, services or site content. Please see their sites for their most up-to-date offer information and all applicable terms and conditions.