JAX - SEA

$145 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 4/20. 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 Jacksonville to Seattle, 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 Jacksonville to Seattle, 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
$305
Typical prices: $614-$429
United Airlines
Tue 5/5Tue 5/12
JAX - SEA • 1 stop
Cheapest one-way
$145
Typical prices: $199-$342
Frontier
Mon 4/20
JAX - SEA • 2 stops
Top airlines
Cheapest • from $305 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Jacksonville and Seattle. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $391 (round-trip)
Shortest trip • 8h 01m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
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

Tue, May 5 - Tue, May 12
United Airlines Logo
5:00 pm - 10:47 pm
JAX
-
SEA
8h 47m
1 stop
United Airlines Logo
11:53 pm - 10:28 am
SEA
-
JAX
7h 35m
1 stop
$305United Airlines
Tue, May 5 - Tue, May 12
Southwest Logo
4:30 pm - 10:30 pm
JAX
-
SEA
9h 00m
1 stop
Southwest Logo
6:50 am - 8:35 pm
SEA
-
JAX
10h 45m
2 stops
$310Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
1:50 pm - 10:30 pm
JAX
-
SEA
11h 40m
2 stops
Southwest Logo
6:50 am - 8:35 pm
SEA
-
JAX
10h 45m
2 stops
$315Southwest
Tue, Apr 21 - Sat, Apr 25
Delta Logo
9:55 am - 2:28 pm
JAX
-
SEA
7h 33m
1 stop
Delta Logo
6:00 am - 5:06 pm
SEA
-
JAX
8h 06m
1 stop
$337Delta
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
3:15 pm - 10:42 pm
JAX
-
SEA
10h 27m
1 stop
United Airlines Logo
11:59 pm - 10:21 am
SEA
-
JAX
7h 22m
1 stop
$341United Airlines
Mon, Apr 20 - Wed, Apr 22
American Airlines Logo
7:48 pm - 12:44 am
JAX
-
SEA
7h 56m
1 stop
American Airlines Logo
10:25 am - 11:44 pm
SEA
-
JAX
10h 19m
1 stop
$342American Airlines
Thu, Apr 16 - Wed, Apr 22
American Airlines Logo
7:48 pm - 12:44 am
JAX
-
SEA
7h 56m
1 stop
American Airlines Logo
7:09 am - 6:52 pm
SEA
-
JAX
8h 43m
1 stop
$356American Airlines
Wed, Apr 22 - Tue, Apr 28
Delta Logo
5:39 pm - 11:53 pm
JAX
-
SEA
9h 14m
1 stop
Delta Logo
11:14 pm - 10:50 am
SEA
-
JAX
8h 36m
1 stop
$360Delta
Thu, Jun 4 - Tue, Jun 9
American Airlines Logo
7:39 pm - 12:59 am
JAX
-
SEA
8h 20m
1 stop
American Airlines Logo
8:10 am - 8:53 pm
SEA
-
JAX
9h 43m
1 stop
$361American Airlines
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
2:20 pm - 10:30 pm
JAX
-
SEA
11h 10m
2 stops
Southwest Logo
6:00 am - 8:45 pm
SEA
-
JAX
11h 45m
2 stops
$366Southwest
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.

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 May.

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 February, where tickets cost $411 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $618 and $537 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 4 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$145
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 2% 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

  • 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 $145 for a one-way ticket and $305 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 Delta?

    The two airlines most popular with KAYAK users for flights from Jacksonville to Seattle are Southwest and Delta. With an average price for the route of $499 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 $456 and an overall rating of 7.9.

  • 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.

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 4329 reviews
7.0Food
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

6.0 GoodDavid, Mar 2026
RSW - BWI
Read more Southwest reviews

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

I liked it better when you were truer to your roots Am paying more for less fun

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

Long layover between flights to Long Island from BWI - need better coordination between flights

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

An entire day of delays. Cost lots of money. Meals and a hotel.

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Flights were on time. Free Wifi on plane. Everything was well organized.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

The staff are very, very professional. It's what flying should feel like.

The flight attendant in business class was excellent! Professional, friendly and attentive.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

It was great. Smooth flight, comfortable, left on time and landed on time.

Really good. I accidentally left my duffel on the plane and the reps were so friendly in retrieving it.

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Flights were constantly delayed. CRW took 50 minutes to get bags

Where do I start!! I was delayed with my flight from Dallas to Tampa. On the way back from Tampa to Dallas the flight was delayed over 4 hours+. I was put on another flight that was also delayed but not as long. Traveling on American Airlines is becoming exhausing.

Everything went very smoothly! Thanks for a great first experience flying with small children!

Crew members great. Everything else a 0! Got on plane at 530am. Got de boarded for mechanical issue. Supposed to leave by 830 am. Zero communication from gate agents. Then supposed to leave by 230pm. Then delayed till 330pm. Still zero communication with gate agents. All they would say is if you have an issue call the 1800 number. You call and sit on hold minimum 45 minutes for zero answer. Finally board at 345pm didn’t take off till after 4pm! Sat in airport for 11 hours with 4 adults and 3 kids. Finally offered a $100 (we are sorry) voucher for next trip. Missed whole day in Florida had to change reservations in Florida! Absolute joke of an airline! And I usually really like sun country.

Booked through Kayak for $236. They canceled the flight unknown to me; retaining $100 for canceling it. Found out when I went to check in. Rebooked the same flight for $400. Incredibly disappointed. The Sun Country part was as to be expected. Crowded, no food, no arm room but got me where I wanted to go.

3 seperate extremely rude unhelpful staff. Delayed flight. Lost my bag

Sat between 2 big men. I was uncomfortable. Flight was delayed twice. About 2 hours altogether.

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

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

Information on your arrival and departure airports