SEA - JAX

$129 Find Cheap Flights from Seattle to Jacksonville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Jacksonville departing on 2/2. 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 Jacksonville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Jacksonville, 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 Jacksonville, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$308
Overall average: $425
Multiple Airlines
Fri 1/9Sun 1/18
SEA - JAX • 1 stop
Cheapest one-way
$129
Typical prices: $227-$428
Multiple Airlines
Mon 2/2
SEA - JAX • 3 stops
Video guide: How to find cheap flights to Jacksonville
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Top airlines
United Airlines
Cheapest • from $354 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 15% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Jacksonville (SEA-JAX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Jacksonville 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 Seattle to Jacksonville

Fri, Jan 9 - Sun, Jan 18
Multiple Airlines Logo
9:02 pm - 7:59 pm
SEA
-
JAX
19h 57m1 stop
Multiple Airlines Logo
4:13 pm - 11:09 am
JAX
-
SEA
21h 56m2 stops
$308Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Delta Logo
11:10 pm - 11:09 am
SEA
-
JAX
8h 59m1 stop
Delta Logo
5:39 pm - 11:15 pm
JAX
-
SEA
8h 36m1 stop
$327Delta
Fri, Jan 16 - Tue, Jan 20
American Airlines Logo
11:12 pm - 11:57 am
SEA
-
JAX
9h 45m1 stop
American Airlines Logo
6:00 am - 11:45 am
JAX
-
SEA
8h 45m1 stop
$330American Airlines
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
5:00 am - 3:15 pm
SEA
-
JAX
7h 15m1 stop
United Airlines Logo
4:17 pm - 9:15 pm
JAX
-
SEA
7h 58m1 stop
$334United Airlines
Sun, Jan 18 - Sat, Jan 24
American Airlines Logo
8:04 am - 8:58 pm
SEA
-
JAX
9h 54m1 stop
American Airlines Logo
2:42 pm - 10:20 pm
JAX
-
SEA
10h 38m2 stops
$335American Airlines
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
8:10 am - 8:10 pm
SEA
-
JAX
9h 00m1 stop
United Airlines Logo
11:40 am - 9:15 pm
JAX
-
SEA
12h 35m2 stops
$339United Airlines
Tue, Dec 30 - Thu, Jan 8
Delta Logo
12:55 am - 2:09 pm
SEA
-
JAX
10h 14m1 stop
Delta Logo
2:03 pm - 7:38 pm
JAX
-
SEA
8h 35m1 stop
$347Delta
Wed, Jan 21 - Tue, Jan 27
Delta Logo
10:59 pm - 10:17 am
SEA
-
JAX
8h 18m1 stop
Delta Logo
6:30 am - 12:20 pm
JAX
-
SEA
8h 50m1 stop
$353Delta
Fri, Jan 9 - Sun, Jan 18
United Airlines Logo
8:10 am - 8:10 pm
SEA
-
JAX
9h 00m1 stop
United Airlines Logo
6:40 am - 12:49 pm
JAX
-
SEA
9h 09m1 stop
$354United Airlines
Wed, Jan 28 - Sat, Jan 31
Delta Logo
11:10 pm - 11:09 am
SEA
-
JAX
8h 59m1 stop
Delta Logo
7:30 am - 12:20 pm
JAX
-
SEA
7h 50m1 stop
$356Delta
Booking Insights

KAYAK's insights & trends for Seattle to Jacksonville flights

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

Find cheap flights to Jacksonville
Find cheap flights to Jacksonville

Planning a trip from Seattle to Jacksonville? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

The average price of all round-trip flights from Seattle to Jacksonville clicked on KAYAK for each day over the last 12 months.

When flying from Seattle to Jacksonville, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Seattle to Jacksonville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Jacksonville, 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 Jacksonville is September, where tickets cost $394 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $587 and $561 respectively.

How far in advance should I book a flight from Seattle to Jacksonville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Jacksonville, 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 Seattle to Jacksonville, you should book around 5 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$129
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Seattle to Jacksonville

When to book flights from Seattle to Jacksonville

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

  • What parking facilities are available at Seattle-Tacoma International Airport?

    For both long-term and short-term parking, the airport offers about 12,100 spots accessible for both leisure and business passengers. Travelers who reserve parking in advance might receive discounts on both short and long-term parking. The garage exit lanes and easy pay machines accept American Express, MasterCard, and Visa credit cards.

  • How do I get from the city center to Seattle-Tacoma International Airport?

    Seattle-Tacoma International Airport is about 12 miles south ofSeattle and 22 miles north of Tacoma. The Link Right Rail is the easiest way to get to the airport from downtown Seattle. To get to the airport, you can also use the bus services provided by King County Metro and Sound Transit. Only Wingz, Lyft, and Uber are permitted to provide ridesharing services within airports.

  • What accessibility services are provided at Seattle-Tacoma International Airport?

    Seattle-Tacoma International Airport aims to give passengers a safe, convenient, and comfortable travel experience while at the airport. The airlines that fly out of the airport provide complimentary wheelchair transportation for travelers with mobility issues. In order to accommodate travelers from certain ground transportation points to ticketing counters, the airport now offers a pre-security wheelchair service. The airport offers portable induction loops for individuals who need T-coil hearing aids at specific spots and employs Aira to help the visually impaired.

  • How do I get from Jacksonville International Airport to downtown Jacksonville?

    The cheapest way to get from Jacksonville International Airport to downtown Jacksonville is by taking the Line 1 bus, which you can catch from the JIA Station and takes approximately 1 hour to get to the city center. You can also opt to take a taxi, rideshare service, or get a car rental from the rental car center at the airport, which will take you approximately 20 minutes to get to downtown Jacksonville.

  • What is the cheapest flight from Seattle to Jacksonville?

    In the last 3 days, the lowest price for a flight from Seattle to Jacksonville was $129 for a one-way ticket and $308 for a round-trip.

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

    A passport is not required to fly from Seattle to Jacksonville.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Jacksonville?

    Only American Airlines offers inflight Wi-Fi service on the Seattle to Jacksonville flight route.

  • Which aircraft models fly most regularly from Seattle to Jacksonville?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Seattle to Jacksonville flight route.

  • Which airline alliances offer flights from Seattle to Jacksonville?

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

  • What is the most popular layover when flying to Jacksonville from Seattle?

    Atlanta is the most popular layover city among KAYAK users traveling from Seattle to Jacksonville.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Jacksonville are Delta and Southwest. With an average price for the route of $458 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $436 and an overall rating of 7.9.

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

    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 Jacksonville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Jacksonville from Seattle 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 Seattle to Jacksonville?

    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 Jacksonville with an airline and back to Seattle with another airline. Booking your flights between Seattle and JAX 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 Seattle to Jacksonville?

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

KAYAK’s top tips for finding a cheap flight from Seattle to Jacksonville

  • In order to accommodate nursing moms, Seattle-Tacoma International Airport (SEA) offers a variety of services, including nursing suites, nursing rooms, and nursing pods. Each area has a lockable door, a flat surface, a place to sit, and an electrical outlet.
  • To keep kids entertained before their flight to Jacksonville International Airport (JAX), Seattle-Tacoma International Airport provides a playground just across from Gate A1. For optimal hygiene for the children, hand sanitizer and disinfecting wipes are provided in the play area.
  • When flying from Seattle-Tacoma International Airport to Jacksonville International Airport, arrive at the airport at least 2 hours before the flight’s scheduled time of departure as this will give you sufficient time to check in and go through the necessary security checks.
  • In the event that you lose any of your items upon arrival at Jacksonville International Airport in the terminal or airport grounds, head over to the lost and found department where you can fill a lost item claim.
  • Visit the airport lounges when you arrive at Jacksonville International Airport (JAX) to take advantage of a range of amenities like food, beverages, and free Wi-Fi. The lounges are situated outside security at the Main Terminal and inside security at Concourse A.

Reviews of the top 5 airlines serving from Seattle to Jacksonville

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Jacksonville. 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 Jacksonville? 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
SouthwestOverall score based on 4251 reviews
7.5Entertainment
7.0Food
8.6Crew
8.0Comfort
8.1Boarding
Airline reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

2.0 MediocreRobert, Dec 2025
LAS - TPA
Read more Southwest reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Good seats in Main cabin, excellent service and excellent landing

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

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.

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

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

The flight was an hour and a half late departing which was inconvenient

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

The food and sitting need improvements. They were extremely bad.. If you choose to recline, there is no room for the passenger behind you. This is one of the worst sitting arrangements that I ever experience. The aircraft was not properly clean before boarding.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

We didn't take off until an hour after we boarded.

Wish they had the seat-back video screens for watching movies or playing games.

Very good but wish they had the seat-back video screens for movies & games

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

It was a good experience. I do wish the seats were roomier. Also, I did not like being charged for my carry on bag

Exceptional take off and landing in snow and wind…thank you to the well skilled pilots!

I liked entertainment system being downloaded on my iPad. The selections were limited but I appreciated being able to use my own screen. The flight was just fine. My only issue was both terminals being far from the main airport. Especially stoning at LAX near midnight and having to wait for a bus to take us to baggage pickup. Very inconvenient.

Just fine but comfort is always an issue since the seats are so close

The Flight was fine, the staff treated me well, the flight got delayed over 5 1/2 hours for maintenance issues....but it worked out OK,, they were very apologetic about it, and it is better to not fly if there is any issue than endanger peoples lives, so in reality that was a good thing, It did cost me extra for parking because I went beyond the time I had purchased for parking at MSP. But all in all, Good flight

I did not take this flight because the reservation made by Kayak was wrong! Kayak owes me a trip from Minneapolis to Duluth.

When I got to the airport in Seattle, they told me the flight "did not exist". Kayak reserved me a seat on a flight that did not exist. This is inexcusable. I was able to change my reservation to a flight that actually did exist, but the flight was later and then I didn't make it in time for the next leg of my trip from Minneapolis to Duluth. Kayak owes me a trip from Minneapolis to Duluth, and a big apology for messing up my reservation.

The plane was freezing cold. Asked for a blanket and there were none. Was told twice that the pilots would warm the plane and it never happened Worst experience flying ever

Multiple delays because they screwed up on the crew schedule and had to wait for over an hour for more people to come.

It was good. Basic flight. Drinks only. Pay budget. Get budget and I’m good with that. I want to get where I need to go. Not hard to please. Female First Officer is an absolute bonus for me!

Everything you need to know for your flight from Seattle to Jacksonville

Information on your arrival and departure airports