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SEA - SJU

Find cheap flights from Seattle to San Juan

1 adult
0 bags
Sat 8/6
Sat 15/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Juan, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,968,530 times on KAYAK, and here is why:

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Flights from Seattle to Luis Munoz Marin Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to San Juan Luis Munoz Marin Intl Airport is January, where tickets cost C$ 521 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is C$ 1,169 and C$ 1,081 respectively.

How far in advance should I book a flight from Seattle to San Juan Luis Munoz Marin Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to San Juan Luis Munoz Marin Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 66 days before departure.

Good to know

Low season

October

High season

December
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (16% more expensive on average)

When to book flights from Seattle to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Seattle to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to San Juan flights

  • Which aircraft models fly most regularly from Seattle to San Juan?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Seattle to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Seattle to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Seattle to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
American AirlinesOverall score based on 14677 reviews
7.6Boarding
8.0Crew
7.2Comfort
6.6Food
7.1Entertainment
Airline reviews

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

2.0 MediocreMichael, May 2024HOU - DFW
Read more about American Airlines reviews

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

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Seattle - San Juan Flights

Departure:

Seattle (undefined)United States

Destination:

San Juan (SJU)Puerto Rico

Cabin classes:

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  • Seattle

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