SEA - JAX

$115 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 12/30. 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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Everything you should know

Cheapest round-trip
$314
Overall average: $496
Frontier
Sun 11/23Thu 12/4
SEA - JAX • 1 stop
Cheapest one-way
$115
Typical prices: $283-$429
Frontier
Tue 12/30
SEA - JAX • 2 stops
Video guide: How to find cheap flights to Jacksonville
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Top airlines
Frontier
Cheapest • from $314 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 17% price drop
December
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

Sun, Nov 23 - Thu, Dec 4
Frontier Logo
9:32 am - 8:48 pmSEA-JAX
8h 16m1 stop
Frontier Logo
1:57 pm - 8:46 amJAX-SEA
21h 49m1 stop
$314Frontier
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Sun, Nov 16 - Thu, Dec 4
Frontier Logo
2:22 pm - 7:01 pmSEA-JAX
25h 39m2 stops
Frontier Logo
1:57 pm - 8:46 amJAX-SEA
21h 49m1 stop
$316Frontier
Find Deal
Thu, Jan 15 - Tue, Jan 20
American Airlines Logo
7:35 am - 7:59 pmSEA-JAX
9h 24m1 stop
American Airlines Logo
7:19 am - 3:34 pmJAX-SEA
11h 15m1 stop
$320American Airlines
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Mon, Nov 24 - Wed, Dec 3
United Airlines Logo
10:53 am - 9:22 pmSEA-JAX
7h 29m1 stop
United Airlines Logo
4:30 pm - 9:46 pmJAX-SEA
8h 16m1 stop
$330United Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
Southwest Logo
6:05 am - 6:10 pmSEA-JAX
9h 05m2 stops
Southwest Logo
5:50 am - 10:45 amJAX-SEA
7h 55m1 stop
$335Southwest
Find Deal
Tue, Dec 9 - Wed, Dec 17
American Airlines Logo
12:31 am - 11:21 amSEA-JAX
7h 50m1 stop
American Airlines Logo
9:10 am - 5:51 pmJAX-SEA
11h 41m1 stop
$338American Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
Southwest Logo
8:45 am - 9:55 pmSEA-JAX
10h 10m2 stops
Southwest Logo
1:35 pm - 10:30 pmJAX-SEA
11h 55m2 stops
$340Southwest
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Tue, Mar 3 - Wed, Mar 4
Delta Logo
6:00 am - 5:28 pmSEA-JAX
8h 28m1 stop
Delta Logo
5:30 am - 10:29 amJAX-SEA
7h 59m1 stop
$351Delta
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Wed, Jan 28 - Sat, Jan 31
Delta Logo
6:15 am - 6:52 pmSEA-JAX
9h 37m1 stop
Delta Logo
1:16 pm - 7:00 pmJAX-SEA
8h 44m1 stop
$359Delta
Find Deal
Thu, Dec 11 - Mon, Dec 15
United Airlines Logo
12:35 pm - 11:14 pmSEA-JAX
7h 39m1 stop
United Airlines Logo
3:40 pm - 12:50 amJAX-SEA
12h 10m2 stops
$374United Airlines
Find Deal
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 $636 and $559 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 4 weeks before departure, which saves you about 42% 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$115
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 34% increase in price.
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 $115 for a one-way ticket and $314 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?

    Charlotte 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Jacksonville are Southwest and Delta. With an average price for the route of $518 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 $487 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.
8.0
SouthwestOverall score based on 4242 reviews
8.0Comfort
7.0Food
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

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.

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.

Food was surprisingly good but the WiFi was not great

this crew didn't care much. bumping carts into seats more times than i care to remember

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

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.

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

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Dreadful experience. Our flight was delayed more than 8 hours due to a maintenance issue and the assistance from rebooking was poor. I was travelling with a bad knee and needed assistance waited in one place more than 3 hours before someone came with a wheelchair. The woman next to me was a 91 year old great grandmother who had waited more than 4 hours. There were moments of support from the staff but it appeared as they were going against the direction of management. It was apathy, lack of ownership and dismissive responses with small moments of kindness and understanding typically from grey haired, female, veteran staff..

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

This flight never occurred because AA couldn’t get their act together.

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!

The Wi-Fi was off, the arm rests are hard plastic.

The assistance with the wheel chairs was fabulous. All the people were so very friendly and helpful. I want to thank them all.

We almost missed our return flight. We got to the gate one minute from closing the cabin door, and the agent got us aboard the plane! We are so very grateful!!!!!

I already filled out a survey for this flight. We booked through KAYAK with airfare assist, and airfare assist did not confirm or honor our flight. Therefore, we had to go to a different place with a different travel agency. I tried very hard with airfare assist, They also promoted this on cheapair.com, but it was a bait and switch in both instances.

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

Information on your arrival and departure airports

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