JAX - SEA

$67 Find Cheap Flights from Jacksonville 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 Jacksonville to Seattle departing on 12/4. 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

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

Cheapest round-trip
$319
Typical prices: $365-$533
Southwest
Wed 1/7Sun 1/11
JAX - SEA • 1 stop
Cheapest one-way
$67
Typical prices: $367-$565
Frontier
Thu 12/4
JAX - SEA • 1 stop
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Top airlines
Southwest
Cheapest • from $319 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 35% compared to booking last minute.
Insights
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When to travel
September
Cheapest • 13% price drop
July
Most popular
Good to know
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+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Jacksonville to Seattle (JAX-SEA)

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

Wed, Jan 7 - Sun, Jan 11
Southwest Logo
5:50 am - 10:45 amJAX-SEA
7h 55m1 stop
Southwest Logo
6:35 am - 4:50 pmSEA-JAX
7h 15m1 stop
$319Southwest
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Wed, Dec 10 - Sun, Dec 14
Southwest Logo
1:05 pm - 10:55 pmJAX-SEA
12h 50m2 stops
Southwest Logo
5:35 am - 7:35 pmSEA-JAX
11h 00m2 stops
$330Southwest
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Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
9:38 am - 10:06 amJAX-SEA
27h 28m1 stop
Multiple Airlines Logo
12:48 pm - 5:36 pmSEA-JAX
25h 48m2 stops
$332Multiple Airlines
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Wed, Dec 10 - Sat, Dec 13
American Airlines Logo
4:48 pm - 11:38 pmJAX-SEA
9h 50m1 stop
American Airlines Logo
12:38 am - 11:43 amSEA-JAX
8h 05m1 stop
$339American Airlines
Find Deal
Thu, Feb 12 - Wed, Feb 18
United Airlines Logo
4:28 pm - 10:43 pmJAX-SEA
9h 15m1 stop
United Airlines Logo
7:00 am - 9:32 pmSEA-JAX
11h 32m2 stops
$343United Airlines
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Fri, Dec 5 - Mon, Dec 8
United Airlines Logo
3:40 pm - 12:50 amJAX-SEA
12h 10m2 stops
United Airlines Logo
5:00 am - 3:24 pmSEA-JAX
7h 24m1 stop
$364United Airlines
Find Deal
Tue, Dec 2 - Mon, Dec 8
American Airlines Logo
6:18 am - 1:09 pmJAX-SEA
9h 51m1 stop
American Airlines Logo
12:31 am - 11:21 amSEA-JAX
7h 50m1 stop
$369American Airlines
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Fri, Nov 21 - Thu, Dec 4
Delta Logo
5:05 am - 10:15 amJAX-SEA
8h 10m1 stop
Delta Logo
11:15 pm - 10:51 amSEA-JAX
8h 36m1 stop
$379Delta
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Sat, Nov 22 - Sun, Dec 7
Delta Logo
6:38 pm - 11:59 pmJAX-SEA
8h 21m1 stop
Delta Logo
6:00 am - 5:35 pmSEA-JAX
8h 35m1 stop
$382Delta
Find Deal
Fri, Nov 14 - Sun, Nov 16
Multiple Airlines Logo
9:43 am - 7:37 pmJAX-SEA
12h 54m1 stop
Multiple Airlines Logo
2:22 pm - 7:01 pmSEA-JAX
25h 39m2 stops
$391Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Jacksonville to Seattle flights

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

Find cheap flights to Seattle
Find cheap flights to Seattle

Planning a trip from Jacksonville to Seattle? 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.

How much is a round-trip flight from Jacksonville 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 Jacksonville to Seattle departing in January.

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

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

Your flight ticket price will generally be cheaper if you fly to Seattle on a Tuesday and more expensive on a Sunday. On your return trip to Jacksonville, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Jacksonville 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 Jacksonville to Seattle is September, where tickets cost $416 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $567 and $556 respectively.

How far in advance should I book a flight from Jacksonville 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 Jacksonville 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 Jacksonville to Seattle, you should book around 5 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$67
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Jacksonville to Seattle

When to book flights from Jacksonville to Seattle

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

  • Where can I relax at Jacksonville International Airport before flying to Seattle?

    Delta Sky Club at JAX is near gate A3 in the main terminal. It offers drinks, comfy seats, and dining options. It also has showers for you to freshen up before you travel. To access this lounge, you must be a first or business class member and a Delta SkyMiles member with elite status. If you do not meet these criteria, you can purchase a day pass to the Sky Club.

  • Are there layovers on flights from Jacksonville to Seattle?

    Layovers on this route frequently include Atlanta, Denver, and Dallas. American, Delta, and United Airlines use these cities as stopovers. These layover spots offer flexibility in travel plans and connect flights when nonstop flights are unavailable. Layover durations depend on the airline's route and travel dates.

  • What carry-on and baggage regulations should I know about on flights from Jacksonville to Seattle?

    Economy passengers on American and Delta Air Lines are allowed one personal item, a bag with a maximum weight of 40 lbs and dimensions of 22 x 14 x 9 inches. Business or first class travelers can bring one individual item and two carry-on items with dimensions of 22 × 14 × 9 inches and a maximum weight of 70 lbs.

  • Which airlines flying between Jacksonville and Seattle are sustainable?

    Environmentally friendly airlines from Jacksonville to Seattle include Southwest and JetBlue Airlines. Southwest Airlines has implemented several initiatives to reduce its carbon footprint, such as using fuel-efficient planes. JetBlue Airlines uses sustainable aviation fuel and works on facilitating and recycling waste.

  • What is the cheapest flight from Jacksonville to Seattle?

    In the last 3 days, the lowest price for a flight from Jacksonville to Seattle was $67 for a one-way ticket and $319 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    Jacksonville airport is called Jacksonville and the only airport in Seattle is Seattle/Tacoma Intl.

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

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

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

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

  • Which airline alliances offer flights from Jacksonville to Seattle?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Jacksonville to Seattle are Southwest and Alaska Airlines. With an average price for the route of $533 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $622 and an overall rating of 8.0.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Jacksonville 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 Jacksonville 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 Jacksonville with another airline. Booking your flights between Jacksonville 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 Jacksonville 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 Jacksonville 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 Jacksonville to Seattle

  • Jacksonville's primary airport is Jacksonville International Airport (JAX). JAX is located around 15 miles north of downtown. American, Southwest, and JetBlue Airlines serve JAX. The airport is linked to transit options like taxis, cars, and ride-sharing services, making traveling to the airport quick. It offers international flights to Toronto and other destinations in Canada, but JAX specializes in domestic flights.
  • United Airlines is a viable option if you wish to upgrade to first class. Upgrades are offered to non-elite members who purchase them at the gate or check-in. Depending on availability and status, elite members can take advantage of the airline's complimentary upgrades. Availability and pricing for upgrades may vary, so it's best to check directly with United Airlines.
  • American and United Airlines are good options for business travelers from Jacksonville to Seattle. American Airlines offers lie-flat seats allowing all passengers to sit more comfortably during the flight. United Airlines has noise-canceling headphones. These headphones help keep you more focused while working, and the chances of getting distracted are minimal.
  • Seattle-Tacoma International Airport (SEA) is the city's major airport. It operates many domestic flights to Los Angeles, Chicago, and Denver. SEA is a hub for Alaska Airlines. SEA is connected to modes of transportation, including rental cars, taxis, and buses, making it simple for all travelers to get to and from the airport.
  • Frontier and Spirit Airlines offer affordable flights between Jacksonville and Seattle. Frontier Airlines offers budget-friendly fares by charging for optional services instead of including them in the ticket and operates a route-route network which allows it to keep costs low. Spirit Airlines has low base fares and uses fuel-efficient aircraft to keep operating prices low.

Reviews of the top 5 airlines serving from Jacksonville to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville 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 Jacksonville 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.
8.0
SouthwestOverall score based on 4237 reviews
8.6Crew
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

6.0 GoodDavid, Aug 2025MCO - DEN
Read more Southwest reviews

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

I would have liked to arrive on time - not 5 hours late!

WiFi on the flight was not working. Thus, entertainment options were limited.

Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Check in process was terrible. Lady at counter didn’t know what she was doing

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Flight was an hour late, who knows why. It was OK, nothing outstanding.

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

Excellent check-in. Crew was good. Excellent communication from flight deck.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

Staff members were not helpful they ignored all calls for an attendant.

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Multiple delays and not straight answer from the United team

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

We had 3 flights. 1 & 2 were on the same plane but we had to de-board just to re-board 30 mins later. That may have been due to a crew change though. Our 3rd flight had a couple “maintenance” issues that held us up. They were quickly resolved but it took forever for someone to bring the paperwork needed so we could leave. Apparently there was a computer glitch so a driver had to bring a physical copy. It delayed us about 1 1/2 hrs. The flights themselves were smooth & no problems. For boarding, I don’t know why they don’t start with the back of the plane & move forward. It would eliminate the back up from people trying to find their seats & put their bags in the overhead bins. Unless you’re on an overseas flight, there is no food, you get a beverage & either a small bag of pretzels or a biscuit cookie. Take your own food or snacks of you want something more.

Lost bag and 2 days no word leaving for cruise no clothes or stuff

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

Internet was a bit expensive and did not work ask that week otherwise a good flight

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

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 Jacksonville to Seattle

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