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$105+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Jacksonville are usually found in September or October, 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 11, 2025.

Round-trip from

$214
(Southwest)

One-way from

$105
(Southwest)

Popular in

December

Cheapest in

September

Average price

$398

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. 9% potential increase in price ($52 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 11, 2025.

This Southwest deal was found by Cheapflights users on 9/11. 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 10/298:35 amSEA - JAX
1 stop8h 35mSouthwest
Wed 11/51:05 pmJAX - SEA
2 stops12h 50mSouthwest
Deal found 9/11$214
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 11/155:45 amSEA - JAX
1 stop8h 10mSouthwest
Wed 11/191:05 pmJAX - SEA
2 stops12h 50mSouthwest
Deal found 9/9$230
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:04 amSEA - JAX
1 stop8h 54mAmerican Airlines
Tue 11/412:26 pmJAX - SEA
1 stop13h 52mAmerican Airlines
Deal found 9/10$242
This Delta deal was found by Cheapflights users on 9/11. 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 9/11$243
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:42 amSEA - JAX
1 stop7h 48mAmerican Airlines
Tue 11/1812:26 pmJAX - SEA
1 stop13h 52mAmerican Airlines
Deal found 9/11$269
This Delta deal was found by Cheapflights users on 9/11. 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 10/291:40 pmSEA - JAX
1 stop7h 19mDelta
Thu 11/67:10 pmJAX - SEA
1 stop7h 44mDelta
Deal found 9/11$270
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 11/1311:59 pmSEA - JAX
1 stop7h 34mUnited Airlines
Tue 11/1811:40 amJAX - SEA
2 stops12h 11mUnited Airlines
Deal found 9/11$275
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:30 pmSEA - JAX
1 stop7h 27mAmerican Airlines
Thu 11/63:39 pmJAX - SEA
1 stop8h 20mAmerican Airlines
Deal found 9/10$282
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:23 amSEA - JAX
1 stop8h 17mAmerican Airlines
Wed 11/1912:26 pmJAX - SEA
1 stop13h 52mAmerican Airlines
Deal found 9/11$283
This Delta deal was found by Cheapflights users on 9/11. 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 10/2911:55 pmSEA - JAX
1 stop9h 45mDelta
Fri 11/72:39 pmJAX - SEA
1 stop9h 06mDelta
Deal found 9/11$284
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sat 11/155:45 amSEA - JAX
2 stops11h 25mSouthwest
Thu 11/279:55 amJAX - SEA
1 stop10h 20mSouthwest
Deal found 9/10$286

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 11, 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 10/29

8:35 am-8:10 pm

1 stop8h 35m

Jacksonville

Wed 11/5

1:05 pm-10:55 pm

2 stops12h 50m

$214

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 1/28

6:45 am-4:50 pm

1 stop7h 05m

Jacksonville

Sat 1/31

5:00 am-10:10 am

1 stop8h 10m

$224

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/29

6:00 am-5:30 pm

1 stop8h 30m

Jacksonville

Tue 11/4

5:10 am-10:14 am

1 stop8h 04m

$243

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 3/3

6:00 am-5:28 pm

1 stop8h 28m

Jacksonville

Wed 3/4

5:30 am-10:29 am

1 stop7h 59m

$243

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/29

10:53 am-9:22 pm

1 stop7h 29m

Jacksonville

Thu 11/6

11:30 am-6:52 pm

1 stop10h 22m

$270

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

$270

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/29

11:55 pm-12:40 pm

1 stop9h 45m

Jacksonville

Fri 11/7

2:39 pm-8:45 pm

1 stop9h 06m

$284

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 10/31

1:40 pm-11:59 pm

1 stop7h 19m

Jacksonville

Wed 11/5

5:32 pm-11:54 pm

1 stop9h 22m

$284

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 10/7

5:50 am-6:55 pm

2 stops10h 05m

Jacksonville

Tue 10/14

8:00 am-3:05 pm

1 stop10h 05m

$332

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 12/10

5:40 am-6:20 pm

1 stop9h 40m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 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 August 29, 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 11, 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 26% 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 11, 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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

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
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

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 7h 29m. Fly via Southwest, 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), Delta ($323), and American Airlines ($326) 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 airlines to fly from Seattle to Jacksonville one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $105. Users have also found prices from $122 and $122 on United Airlines and Delta, respectively.

  • What are the cheapest flights from Seattle to Jacksonville?

    On average you can expect to pay $379 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 $230.

  • 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 $44.

  • 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 $53.

  • 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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Top 5 airlines flying from Seattle to Jacksonville

Discover the top 5 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$200Average$370FlexibilityNo cancel feeOn-time83%
DeltaCheapest$323Average$475FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$466FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$330Average$496FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$550FlexibilityNo cancel feeOn-time63%

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