SJU - SEA

$181 Find Cheap Flights from San Juan to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to Seattle departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Seattle.
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Everything you should know

Cheapest round-trip
$363
Typical prices: $366-$634
United Airlines
Tue 1/13Sat 1/17
SJU - SEA • 1 stop
Cheapest one-way
$181
Typical prices: $182-$421
Multiple Airlines
Sat 12/13
SJU - SEA • 1 stop
Top airlines
Delta
Cheapest • from $429 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 17% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Juan to Seattle (SJU-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Juan to Seattle

Tue, Jan 13 - Sat, Jan 17
United Airlines Logo
8:35 am - 4:01 pmSJU-SEA
11h 26m1 stop
United Airlines Logo
12:35 pm - 6:11 amSEA-SJU
13h 36m2 stops
$363United Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
8:20 am - 8:45 pmSJU-SEA
16h 25m1 stop
American Airlines Logo
11:11 pm - 5:01 pmSEA-SJU
13h 50m1 stop
$370American Airlines
Find Deal
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
11:38 am - 11:42 pmSJU-SEA
16h 04m1 stop
American Airlines Logo
11:11 pm - 5:01 pmSEA-SJU
13h 50m1 stop
$371American Airlines
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Mon, Dec 22 - Mon, Jan 5
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
9:16 pm - 11:44 pmSEA-SJU
22h 28m1 stop
$373Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Jan 5
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
6:33 pm - 12:59 amSEA-SJU
50h 26m3 stops
$376Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Jan 5
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
6:33 pm - 6:34 amSEA-SJU
32h 01m2 stops
$377Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Jan 5
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
9:20 pm - 6:38 pmSEA-SJU
17h 18m1 stop
$385Multiple Airlines
Find Deal
Mon, Dec 22 - Sun, Jan 4
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
12:25 am - 10:15 pmSEA-SJU
17h 50m2 stops
$390Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Dec 29
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
1:25 pm - 7:28 pmSEA-SJU
50h 03m3 stops
$392Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Dec 29
Multiple Airlines Logo
9:37 pm - 8:10 amSJU-SEA
38h 33m2 stops
Multiple Airlines Logo
1:25 pm - 1:39 amSEA-SJU
32h 14m3 stops
$393Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Juan to Seattle flights

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

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Seattle departing in December.

What’s the cheapest day of the week to fly from San Juan to Seattle?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Seattle clicked on KAYAK for each day over the last 12 months.

For San Juan to Seattle, Tuesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Seattle back to San Juan, the best deals are generally found on Tuesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Seattle, 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 San Juan Luis Munoz Marin Intl Airport to Seattle is October, where tickets cost $436 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $681 and $609 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Juan Luis Munoz Marin Intl Airport to Seattle, you should book around 3 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$181
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from San Juan to Seattle

When to book flights from San Juan to Seattle

Are your dates flexible? Find out the best times to travel from San Juan to Seattle 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 San Juan to Seattle flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Seattle was $181 for a one-way ticket and $363 for a round-trip.

  • Do I need a passport to fly between San Juan and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Juan and on arrival in Seattle.

  • Which airports will I be using when flying from San Juan to Seattle?

    San Juan and Seattle are both served by 1 main airport. You will leave San Juan from San Juan Luis Munoz Marin Intl and will be arriving at Seattle/Tacoma Intl.

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

    The Boeing 737-900 is the aircraft model that flies most regularly on the San Juan to Seattle flight route.

  • Which airline alliances offer flights from San Juan to Seattle?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between San Juan and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from San Juan to Seattle, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Juan to Seattle are Southwest and Delta. With an average price for the route of $661 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $666 and an overall rating of 7.9.

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

    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 San Juan to Seattle.

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

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

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

    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 Seattle with an airline and back to San Juan with another airline. Booking your flights between San Juan and SEA can sometimes prove cheaper using this method.

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

    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 Seattle from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from San Juan to Seattle

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Seattle. 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 San Juan to Seattle? 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.
7.9
DeltaOverall score based on 7998 reviews
8.5Crew
7.3Food
7.9Comfort
8.1Boarding
7.9Entertainment
Airline reviews

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

8.0 ExcellentDavid, Nov 2025FLL - BOS
Read more Delta reviews

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

the over had ligth did not work'd for the all way

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

United has come a long way, it’s been a fantastic experience traveling with them.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Great crew, excellent landing, good food. Over all great experience. Thank you!

Older aircraft, no meal, only food was for purchase. Not impressed United.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

The inflight staff is never the issue always the extra and charges american charges! Literally 30 bucks for WiFi! Is insane and then it’s choppy and slow. If you pay for it once you don’t need to pay again for switching aircraft especially when there is flight delays

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

flight was good until we arrived at cmh ten minutes early but then sat on tarmac for twenty minutes because a plane was at our gate, so we had to wait despite the pilot tellling us that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Friendly crew. Poor food service maybe due to full flight. All in all, you get what you pay for.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

Speaker airport didn't work well, so we couldn't hear the boarding call but the plane was on time leaving and on time arriving took a while for them to open the door and there was a non-disruptive guy who was inebriated a few rows ahead of us. Overall the flight was good and we appreciate the on-time-ness

The plane was freezing and everyone had on their winter coats. I pulled out my sweaters out of my carryon to cover myself and put on an extra pair of socks. They offered NO FREE drinks or snacks on a 6 hour flight. The seats don’t have plugs or charges or any form of entertainment- so I just played my one downloaded game on my phone because I couldn’t sleep because I was too cold. Miserable flight though we landed safely.

Bought round trip tickets. Ended up upgrading to first class. Both flights were new planes but hadn’t been equipped with WiFi and there were no charging ports at my seat despite it being new and first class accommodations.

The flight was on time and the crew was very professional and accommodating. When other airlines are canceling flights Spirit is still flying with on time flights. I have no complaints and will continue to choose Spirit when it is the best option for me.

Very uncomfortable seat. Hard bar under cushion. Flight had no solution except to walk a around at times

Endless, trip oof my life, we still are in in plane waiting for getting off.after 3 hours delay. Not even a glass of water.

The checkin in laguardia was a disaster, scrambling left and right, it was constantly a trying to sell you something, better seat, constantly selling

It was cheap. Spirit is what it is. I got to my destination and home safely. There was no food or entertainment without paying extra, which is fine. That’s why the flight was inexpensive.

Like: seats that don't move; fast boarding; engaging crew; low-prices; individual gate at LGA; access to restrooms at the gate Dislike: no water on the flight

No leg room. My knee was sore for a day.

Everything you need to know for your flight from San Juan to Seattle

Information on your arrival and departure airports