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$136+ Cheap flights from Seattle to Jacksonville (SEA - JAX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Jacksonville are usually found in September or August, booked 70 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Jacksonville

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Jacksonville (JAX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$303
(Priceline)

One-way from

$136
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$396

Good round-trip deal

$337 or less
From Seattle/Tacoma Intl to Jacksonville
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One-way flight from Seattle/Tacoma Intl to Jacksonville
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Highest demand for flights based on searches. 10% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Jacksonville.
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Find flight deals from Seattle to Jacksonville

Cheapest flights from Seattle to Jacksonville
Explore the most affordable flight options available from Seattle to Jacksonville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Priceline deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1411:56 pmSEA - JAX
1 stop13h 21mJetBlue
Tue 10/2111:30 amJAX - SEA
1 stop13h 51mJetBlue
Deal found 9/15$303
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:00 amSEA - JAX
1 stop8h 30mDelta
Tue 11/45:10 amJAX - SEA
1 stop8h 04mDelta
Deal found 9/17$317
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1411:40 pmSEA - JAX
1 stop7h 45mUnited Airlines
Tue 10/218:15 amJAX - SEA
2 stops11h 05mUnited Airlines
Deal found 9/16$322
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:59 pmSEA - JAX
1 stop21h 30mDelta
Wed 11/57:05 amJAX - SEA
1 stop10h 33mDelta
Deal found 9/17$325
This Priceline deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2111:56 pmSEA - JAX
1 stop13h 21mJetBlue
Fri 10/2411:30 amJAX - SEA
1 stop14h 06mJetBlue
Deal found 9/15$330
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:00 amSEA - JAX
1 stop8h 30mDelta
Thu 11/65:10 amJAX - SEA
1 stop8h 04mDelta
Deal found 9/17$334
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:37 pmSEA - JAX
2 stops12h 04mUnited Airlines
Tue 10/284:57 pmJAX - SEA
1 stop8h 49mUnited Airlines
Deal found 9/15$337
This JetBlue deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:59 pmSEA - JAX
1 stop31h 41mJetBlue
Sat 10/116:35 amJAX - SEA
1 stop19h 01mJetBlue
Deal found 9/15$338
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1111:10 pmSEA - JAX
1 stop8h 31mUnited Airlines
Tue 10/143:38 pmJAX - SEA
2 stops10h 37mUnited Airlines
Deal found 9/17$339
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/231:02 pmSEA - JAX
2 stops18h 50mFrontier
Sun 10/269:59 pmJAX - SEA
2 stops17h 08mFrontier
Deal found 9/15$343
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:15 amSEA - JAX
2 stops11h 20mSouthwest
Wed 11/191:05 pmJAX - SEA
2 stops12h 50mSouthwest
Deal found 9/16$344
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:50 amSEA - JAX
1 stop11h 20mSouthwest
Wed 10/222:30 pmJAX - SEA
2 stops12h 15mSouthwest
Deal found 9/15$345

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Jacksonville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Seattle to Jacksonville that are best for you.

Fly from

Seattle

Fly to

Jacksonville

Route

Depart

Return

Price

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/15

10:39 am-10:38 pm

1 stop8h 59m

Jacksonville

Wed 10/22

5:54 pm-12:27 am

1 stop9h 33m

$317

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/29

11:55 pm-12:40 pm

1 stop9h 45m

Jacksonville

Tue 11/4

11:39 am-6:23 pm

1 stop9h 44m

$317

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/15

11:10 pm-10:41 am

1 stop8h 31m

Jacksonville

Wed 10/22

4:20 pm-9:34 pm

1 stop8h 14m

$317

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/29

6:20 am-6:34 pm

1 stop9h 14m

Jacksonville

Wed 11/5

4:26 pm-11:10 pm

1 stop9h 44m

$317

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 10/28

6:00 am-5:30 pm

1 stop8h 30m

Jacksonville

Wed 11/5

11:39 am-6:23 pm

1 stop9h 44m

$317

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 10/27

9:59 pm-4:37 pm

1 stop15h 38m

Jacksonville

Wed 11/5

5:10 am-10:14 am

1 stop8h 04m

$325

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/29

11:55 pm-12:40 pm

1 stop9h 45m

Jacksonville

Mon 11/3

7:10 pm-11:54 pm

1 stop7h 44m

$334

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 10/30

11:55 pm-12:43 pm

1 stop9h 48m

Jacksonville

Wed 11/5

7:10 pm-11:54 pm

1 stop7h 44m

$334

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 12/16

11:55 pm-1:04 pm

1 stop10h 09m

$159

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/15

10:39 am-10:38 pm

1 stop8h 59m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 20 results
1
2

Best time to book a flight from Seattle to Jacksonville

Have a flexible travel schedule? Discover the best time to fly to Jacksonville from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Jacksonville. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Jacksonville, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Jacksonville?

Currently, August is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of $278). Flying from Seattle to Jacksonville in March is currently the most expensive (average of $365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to JAX?

Find hourly flight availability from Seattle to Jacksonville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Seattle to Jacksonville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 31% versus a flight in the evening.

Reviews of airlines servicing Jacksonville

Get insights into the airlines that provide service to Jacksonville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Jacksonville. Reviews last updated September 17, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Seattle to Jacksonville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Sun Country Air
6.9
Okay
330 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Seattle to Jacksonville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Jacksonville?

    There are many flights that can get you from Seattle to Jacksonville in 8h 31m. Fly via American Airlines, Delta, or United Airlines to get the fastest option. The distance between Seattle and Jacksonville is about 2438 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Jacksonville round-trip?

    According to our current data, Sun Country Air ($200), United Airlines ($308), and Delta ($322) offers the cheapest pricing from Seattle to Jacksonville. These flights start at 57% lower than the current average price 3 months from now.

  • What are the cheapest flights from Seattle to Jacksonville?

    On average you can expect to pay $358 for a flight from Seattle to Jacksonville. The cheapest flight overall is $337 while the most popular route, (Seattle/Tacoma Intl - Jacksonville) is currently priced at $317.

  • Where are the most common layover locations when flying from Seattle to Jacksonville?

    The most popular layover on flights from Seattle to Jacksonville is Charlotte. Charlotte is followed by Atlanta in terms of the most popular layover location on flights from Seattle to Jacksonville.

  • What are some popular things to do or see while on a layover in Charlotte?

    If you're on a layover in Charlotte and looking for things to do, consider visiting Carowind, Mint Museum Uptown, or NASCAR Hall of Fame. Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are located about 8.2 mi, 5.4 mi, and 5.7 mi, respectively from Charlotte Douglas. Those on a layover in Charlotte in need of a rental car can book one at Charlotte Douglas for about $43.

  • What are some popular points of interest to see during a layover in Atlanta?

    Georgia Aquarium, Tabernacle, and Fox Theatre are the most popular attractions in Atlanta if you're in need of something to do during your layover. Georgia Aquarium, Tabernacle, and Fox Theatre can be visited by traveling about 8.6 mi, 8.3 mi, and 9.3 mi respectively from Atlanta Hartsfield-Jackson. Those on a layover in Atlanta in need of a rental car can book one at Atlanta Hartsfield-Jackson for about $52.

  • Where are the least popular layover locations for Seattle to Jacksonville flights?

    Seattle to Jacksonville flights have a layover in Dallas the least frequently.

  • Can I find deals for flights from Seattle to Jacksonville that include hotel bookings?

    Yes. In addition to deals on Seattle to Jacksonville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Jacksonville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Jacksonville.

  • Can I find deals for business class flights from Seattle to Jacksonville?

    Yes. Cheapflights offers flight deals from Seattle to Jacksonville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Jacksonville?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of $278). Flying from Seattle to Jacksonville in March is currently the most expensive (average of $365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Jacksonville Beach
Orange Park
Kingsland
Fernandina Beach
Waycross

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Alternative routes for Seattle to Jacksonville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Seattle to Jacksonville

Discover the top 6 airlines that operate flights from Seattle to Jacksonville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$200Average$370FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$308Average$496FlexibilityNo cancel feeOn-time69%
DeltaCheapest$322Average$481FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$325Average$466FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$366Average$558FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$462Average$522FlexibilityNo cancel feeOn-time75%

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