San Francisco – Madrid, Spain. $436 (Basic Economy) / $636 (Regular Economy). Roundtrip, including all Taxes – The Flight Deal

Exciting flight deals to Madrid! Pricing may vary slightly based on routes.

The fare of $636 includes advance seat selection, a standard carry-on bag, and one checked bag.

Delta, Air France, and KLM also offer a lower fare of $436, but note that this is a Basic Economy fare with certain restrictions:

• Advance seat selection is NOT allowed.
• Checked bags are NOT included — expect to pay $75 for the first bag and $100 for the second.
• Changes are NOT allowed.
• Cancellations are NOT permitted—if you cancel after the 24-hour risk-free period, the Basic Economy ticket will have no value for future travel.
• Mileage earning is NOT allowed.
• Many online travel agencies do not clearly display the Basic Economy fare options for Air France/KLM.

Atocha Station, Madrid, Spain – Photo: Mathew Black via Flickr, used under Creative Commons License (By 2.0)

Sample Travel Dates:

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

Fare Availability:

• This fare is valid for travel from late September to early December or mid-January to February 2026, with departures on Sundays through Wednesdays and returns on Tuesdays through Fridays. A Sunday stay is required, and availability is limited. Tickets must be purchased at least 7 days before departure.

• Please remember, while this fare is valid at the time of posting, it may no longer be available if this post is more than two days old.

How to Search for Availability:

• This section is for searching availability only. To book your tickets, refer to the “How to Buy” section below.
• Use Matrix Airfare Search by ITA Software and apply the following search criteria:
• Origin: SFO
• Advanced Routing Code:
• Routing Codes: DL DL
• Extension Codes: f ..VLX76LBA; maxconnect 300
  • This instructs Matrix Airfare Search to find the Basic Economy fare. Use those dates on Delta to see options for upgrading to a regular economy fare.
• Destination: MAD
• Return Advanced Routing Code:
• Routing Codes: DL DL
• Extension Codes: f ..VLX76LBA; maxconnect 300
• (Click on the Advanced Codes link to input advanced routing codes.)
• Select “See calendar of lowest fares.”
• Duration “3-10” (This is just a sample; other 7-day ranges like 3-10 or 7-14 are also valid.)
• Check out our Beginner’s Guide on using Matrix by ITA Software.
• Learn how to read airfare rules to leverage them in your favor.

• The Matrix Airfare Search page should appear as shown below once all values are inputted.

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

Fare Class:

• E (Basic Economy)
• V (Regular Economy)

Elite Qualifying Dollars:

Routing:

• SFO – JFK (New York) – MAD (Madrid) – JFK – SFO

Stopover:

Mileage:

• Miles Flown: 12,312 miles (3.5 cents per mile for Basic Economy / 5.1 cents per mile for Regular Economy).
• Redeemable Miles: 2,605 miles

How to Buy:

• Book directly through Delta using the dates found on Matrix Airfare Search.

Accommodations

• TripAdvisor – A leading hotel comparison platform to find the best prices from over 200 sites.

Car Rentals

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Activities and Tours

• Viator – The world’s largest marketplace for destination activities and tours.

Background Information:

• Visa: US citizens do not require one. Other nationals should consult the TIMATIC Visa Database.
• Currency: Euro (EUR); $1 USD = 0.89 EUR.

Tips for Saving When Using Credit Cards Abroad:

For the latest cheap flight deals from San Francisco/Bay Area:

* The Flight Deal earns a commission if you use the accommodation, car rental, activity, or travel insurance affiliate links to make a booking, or apply and are approved for a credit card through our link. Thank you for your continued support.

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The Flight Deal does not sell travel products or services. We provide information about third-party travel supplier offers and link to their websites. The details provided are accurate at the time of publication; however, we cannot guarantee that offers won’t change or become unavailable. Refer to the suppliers’ sites for the most up-to-date information and applicable terms.