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Cheap Flights from Seattle to San Juan

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1 deal · Prices in USD

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Best deal sorts by cost per mile. Lowest price sorts by the total fare shown. On the main board, flights from your region may appear first when no region filter is selected.

Latest economy price we saw: Seattle to San Juan

The most recent economy round-trip fare we saw on this route.

From Price Per mile Travel dates Airline Seen
Seattle (SEA) to San Juan (SJU) $537 7.2¢ Dec 3 – Dec 9 United and Southwest Nov 9

Economy price history: Seattle to San Juan

The lowest fares we saw each month.

Month Low Typical Sightings
Nov 2026 $537 $766 11
Oct 2026 $1225 $1225 37
Aug 2026 $320 $440 107

Every deal from Seattle to San Juan, ranked by cost per mile.

On the board right now

  • Cabin mix: 1 Business.
  • Most active airlines: American.

Frequently asked questions

How many flight deals from Seattle to San Juan are on Sparkflights right now?

There are 1 deals from Seattle to San Juan on the board right now.

What is the cheapest flight from Seattle to San Juan right now?

The lowest fare from Seattle to San Juan right now is $1128 in Business.

What is the lowest price ever seen from Seattle to San Juan?

The lowest economy fare we've recorded from Seattle to San Juan is $320, based on 155 price observations over 3 months.

How much does a flight from Seattle to San Juan cost?

The typical round-trip economy fare we observed from Seattle to San Juan is $810, against a recorded low of $320. These are observations, not quotes.

When is the cheapest month to fly Seattle to San Juan?

For economy fares from Seattle to San Juan, August was the cheapest month we observed and October the dearest, over 3 months of data.

What is the current price from Seattle to San Juan?

The most recent economy fare we saw from Seattle to San Juan is $537, on Nov 9.

Which airlines fly Seattle to San Juan?

Airlines with the most deals from Seattle to San Juan right now are American.