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Due to the ongoing Covid-19 pandemic, we encourage you to get vaccinated for safer and more convenient travel.

A good sale to San Juan. Pricing will vary slightly depending on routing

The $411 fare is the regular fare which allows for normal size carry-on and personal item in addition to advance seat assignment.

United also have a $321 fare but that is a Basic Economy fare. United Basic Economy fares do not allow for any advance seat assignment. Rather, your seat assignment will be randomly assigned during check-in. In addition, normal size carry-on that does not fit under the seat is charge a $35 fee each way + applicable gate check fees (but free if you have an United co-branded credit card or if you have United elite status).

Here are some practical travel tips to Puerto Rico, and some practical travel tips to Culebra Island, Puerto Rico.

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Interested in Business Class, First Class or Premium Economy deals? Signup for our Premium Newsletter for about a quarter a day.

Sample Travel Date:

• October 28th – November 1st

• 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 on the outbound in late October or mid January 2024. Availability is limited. Must purchase at least 3 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: SEA
  • Origin Advanced Routing Code:
    • Routing Codes: ua ua
    • Extension Codes: maxconnect 300
      • This is instructing Matrix Airfare Search by ITA Software to search for the Basic Economy fare. Use those dates on United and you will be presented with an option to upgrade to a regular economy fare.
  • Destination:  SJU
  • Return Advanced Routing Code:
    • Routing Codes: ua ua
    • Extension Codes: maxconnect 300
    • (Click on Advanced Routing Codes link to enable advanced routing code input)
    • Select “See calendar of lowest fares”
    • Length of stay “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:

• N (Basic Economy)
• L (Regular Economy)

Elite Qualifying Dollars:

• $340

Routing:

• SEA – IAD (Washington D.C.) – SJU (San Juan) – EWR (Newark) – SEA

Mileage:

• Miles Flown: 7,877 miles or 4.1 cents per mile (Basic Economy) / 5.2 cents per mile (Regular Economy)
• Redeemable Miles: 1,700 miles

How to Buy:

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

 

Accommodations

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Activities and Tours

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

For more of the latest cheap Seattle Flight Deals:

• Go to the The Seattle 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.