San Francisco – Barcelona, Spain. $482 (Basic Economy) / $682 (Regular Economy). Roundtrip, including all Taxes – The Flight Deal

Great Deals to Barcelona!

United Airlines, in partnership with Air Canada, Austrian Airlines, Lufthansa, and Swiss Air, offers a regular economy fare of $682, which includes one checked bag and a standard carry-on.

Additionally, you can find Basic Economy fare starting at $482. Please note that these fares come with the following restrictions:

• No advance seat assignment.
• Checked bags are not included – $75 for the first bag and $100 for the second each way.
• No changes or cancellations allowed. If you cancel after the 24-hour risk-free window, these tickets will have no value.
• Many travel websites may not clearly label these fares as Basic Economy when booking with United or its partners.

Subscribe to our Real Time Newsletter for economy class deals in your city, available about an hour before they’re posted online – all for just a nickel a day!

If you’re interested in Business Class, First Class, or Premium Economy deals, sign up for our Premium Newsletter for about a quarter a day.

La Sagrada Familia, Barcelona, Spain – Photo: Boris Kasimov via Flickr, used under Creative Commons License (By 2.0)

Sample Travel Dates:

• September 30th – October 7th

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

Fare Availability:

• Valid for travel from late September to early December or January 2026 to March 2026, with Sunday to Wednesday departures and Tuesday to Friday returns. Limited availability; tickets must be purchased at least 7 days prior to departure.

• Note: This fare was valid at the time of posting, but if this post is older than two days, the fare may no longer be available.

How to Search for Availability:

• This section is solely for checking availability. To purchase tickets, follow the “How to Buy” instructions further down.

• Utilize the Matrix Airfare Search by ITA Software with the following parameters:
  • Origin: SFO
  • Routing Codes: ua ua
  • Extension Codes: maxconnect 300
    • This instructs the Matrix Airfare Search to find the Basic Economy fare. After inputting your dates for United, you will have the option to upgrade to a standard economy fare.
  • Destination: BCN
  • Return Routing Codes: ua ua
  • Extension Codes: maxconnect 300
  • Select “See calendar of lowest fares.”
  • Duration: “3-10” (This is just a sample; feel free to use any 7-day range such as 3-10 or 7-14).
• For more assistance with Matrix by ITA Software, consult the beginner’s guide.
• Learn how to interpret airfare rules to your advantage.

• The Matrix Airfare Search should resemble the image below once all parameters are properly set.

• You cannot purchase tickets using Matrix Airfare Search. For purchasing, follow the instructions in the “How to Buy” section below.

Fare Class:

Elite Qualifying Dollars:

Routing:

• SFO – IAD (Washington D.C.) – BCN (Barcelona) – IAD – SFO

Stopover:

Mileage:

• Miles Flown: 12,916 miles or 3.7 cents per mile (Basic Economy) / 5.3 cents per mile (Regular Economy)
• Redeemable Miles: 2,855 miles

How to Buy:

• Book directly on United with the dates you find using Matrix Airfare Search.

Accommodations

• TripAdvisor – Search for the best hotel prices from over 200 websites.

Car Rentals

• Rental Cars – Access major brands like Hertz, Avis, and Enterprise.

Activities and Tours

• Viator – Explore the largest marketplace for destination activities and tours.

Information Overview:

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

Credit Card Tips for International Travels:

For the latest flight deals from the San Francisco/Bay Area, stay tuned!

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The Flight Deal provides information on third-party travel offers and links to their sites. While we strive for accuracy, we cannot guarantee the availability of posted deals. For up-to-date information, refer to the suppliers’ sites directly.