Check out these great airfare deals to Porto! Prices may vary slightly based on routing.
United Airlines, along with partners Air Canada, Austrian, Lufthansa, and Swiss Air, is offering a $737 regular economy fare, which includes ONE checked bag and a standard carry-on.
Additionally, there’s a $537 fare available, classified as Basic Economy/Economy Light. Note the following restrictions with these fares:
- NO advance seat assignments permitted.
- NO checked bags included—$75 for the first bag and $100 for the second, each way.
- NO changes allowed.
- NO refunds or cancellations—cancellations after the 24-hour risk-free period will render the fare invalid for future purchases.
- Many online travel agencies may not display these fares correctly as BASIC ECONOMY.
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Porto, Portugal – Photo: Chris Owen via Flickr, used under Creative Commons License (By 2.0)
Sample Travel Dates:
- November 26th – December 3rd
- This is just ONE SAMPLE travel date; for more options, please follow the “Fare Availability” and “How to Search for Availability” instructions below.
Fare Availability:
- Valid for travel from mid-November to early December or mid-January 2026 to February 2026. Departures are allowed on Sundays through Wednesdays and returns from Tuesdays to Fridays. Limited availability; a Sunday stay is required. Tickets must be purchased at least 7 days in advance.
- Keep in mind that while this fare is valid at the time of posting, it may no longer be available if this post is older than two days.
How to Search for Availability:
- This section is purely for searching availability. For purchasing tickets, refer to the “How to Buy” section below.
- Utilize Matrix Airfare Search by ITA Software with the following criteria:
- Origin: SFO
- Routing Codes: ua ua
- Extension Codes: maxconnect 400 (This specifies searching for Basic Economy fares. You can opt to upgrade to regular economy fares with United after entering dates.)
- Destination: OPO
- Return Routing Codes: ua ua
- Return Extension Codes: maxconnect 400
- (Click on Advanced Codes link to input advanced routing codes)
- Select “See calendar of lowest fares”
- Duration: “3-10” (This is a sample; you can select any 7-day range like 3-10, 7-14, etc.)
- For more guidance, check out our Beginner’s Guide on How to Use Matrix by ITA Software and learn How to Read Airfare Rules.
- The Matrix Airfare Search should reflect the inputs as shown below:
- You cannot purchase tickets directly through Matrix Airfare Search. For purchasing, refer to the “How to Buy” section below.
Fare Class:
Elite Qualifying Dollars:
Routing:
- SFO – FRA (Frankfurt) – OPO (Porto) – FRA – SFO
Stopover:
Mileage:
- Miles Flown: 13,418 miles or 4.0 cents per mile (Basic Economy) / 5.5 cents per mile (Regular Economy)
- Redeemable Miles: 2,840 miles
How to Buy:
- Purchase through United with the dates found via Matrix Airfare Search.
Accommodations
- TripAdvisor – A premier hotel meta-search engine. Discover the best hotel rates from over 200 websites.
Car Rentals
- Rental Cars – A prominent car rental agency featuring major brands like Hertz, Avis, Budget, Dollar, and Enterprise.
Activities and Tours
- Viator – The world’s largest marketplace for destination activities and tours.
Background Information:
- Visa: Not required for US Citizens. Other nationals should check the TIMATIC Visa Database.
- Currency: Euro (EUR). $1 USD = 0.85 EUR.
Tips for Saving When Using Credit Cards Internationally:
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