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$133+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/20. 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 3/176:32 am
SEA
-
JAX
2 stops11h 42m
United Airlines
Tue 3/315:27 pm
JAX
-
SEA
1 stop8h 23m
United Airlines
Deal found 1/20$364
This Sun Country Air deal was found by Cheapflights users on 1/20. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/29:24 am
SEA
-
JAX
1 stop23h 48m
Sun Country Air
Mon 7/612:56 pm
JAX
-
SEA
1 stop21h 59m
Sun Country Air
Deal found 1/20$365
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 2/108:04 am
SEA
-
JAX
1 stop10h 04m
American Airlines
Sat 2/141:22 pm
JAX
-
SEA
1 stop9h 20m
American Airlines
Deal found 1/19$367
This Southwest deal was found by Cheapflights users on 1/19. 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.
Tue 2/176:35 am
SEA
-
JAX
1 stop7h 15m
Southwest
Tue 2/247:35 am
JAX
-
SEA
2 stops13h 15m
Southwest
Deal found 1/19$372
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 2/2411:05 pm
SEA
-
JAX
1 stop6h 39m
Delta
Wed 3/187:10 am
JAX
-
SEA
1 stop18h 12m
Delta
Deal found 1/20$375
This American Airlines deal was found by Cheapflights users on 1/19. 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 2/261:44 pm
SEA
-
JAX
1 stop7h 15m
American Airlines
Wed 3/48:17 am
JAX
-
SEA
1 stop10h 40m
American Airlines
Deal found 1/19$376
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:30 pm
SEA
-
JAX
1 stop22h 29m
Multiple Airlines
Wed 3/188:18 pm
JAX
-
SEA
2 stops23h 51m
Multiple Airlines
Deal found 1/20$380
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:30 pm
SEA
-
JAX
1 stop22h 29m
Multiple Airlines
Mon 3/165:58 pm
JAX
-
SEA
2 stops26h 11m
Multiple Airlines
Deal found 1/20$381
This Delta deal was found by Cheapflights users on 1/20. 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.
Thu 2/2611:05 pm
SEA
-
JAX
1 stop8h 16m
Delta
Tue 3/177:10 am
JAX
-
SEA
1 stop15h 38m
Delta
Deal found 1/20$384
This American Airlines deal was found by Cheapflights users on 1/19. 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 2/2610:08 pm
SEA
-
JAX
1 stop7h 43m
American Airlines
Mon 3/27:00 am
JAX
-
SEA
1 stop8h 47m
American Airlines
Deal found 1/19$385
This Southwest deal was found by Cheapflights users on 1/19. 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 2/189:55 am
SEA
-
JAX
1 stop9h 00m
Southwest
Thu 2/267:50 am
JAX
-
SEA
2 stops14h 15m
Southwest
Deal found 1/19$387

Find 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$364
(United Airlines)

One-way from

$133
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$447
Provider with most accurate pricing for Seattle/Tacoma Intl-Jacksonville flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Jacksonville flights.
Search Deals
From Seattle/Tacoma Intl to Jacksonville
Search Deals
One-way flight from Seattle/Tacoma Intl to Jacksonville
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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 2/25

6:15 am-4:51 pm

1 stop7h 36m

Jacksonville

Wed 3/18

7:10 am-10:22 pm

1 stop18h 12m

$375

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 2/26

11:05 pm-10:21 am

1 stop8h 16m

Jacksonville

Tue 3/17

7:10 am-7:48 pm

1 stop15h 38m

$384

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 2/18

6:05 am-8:35 pm

2 stops11h 30m

Jacksonville

Thu 2/26

7:50 am-7:05 pm

2 stops14h 15m

$392

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 2/18

6:45 am-4:50 pm

1 stop7h 05m

Jacksonville

Sat 2/21

5:10 am-10:15 am

1 stop8h 05m

$408

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 3/23

11:55 pm-1:45 pm

2 stops10h 50m

Jacksonville

Sat 3/28

5:00 am-10:30 am

1 stop8h 30m

$416

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 2/19

8:35 am-10:15 pm

2 stops10h 40m

Jacksonville

Fri 2/27

10:50 am-7:05 pm

2 stops11h 15m

$422

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 3/2

11:15 pm-11:14 am

1 stop8h 59m

Jacksonville

Fri 3/20

11:58 am-10:15 pm

1 stop13h 17m

$425

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 2/10

9:55 am-9:55 pm

1 stop9h 00m

Jacksonville

Sun 2/15

4:20 pm-10:50 pm

1 stop9h 30m

$428

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 2/27

9:45 pm-10:34 am

1 stop9h 49m

Jacksonville

Thu 3/19

7:10 am-10:22 pm

1 stop18h 12m

$429

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 4/10

8:55 am-9:46 pm

1 stop9h 51m

Jacksonville

Fri 4/17

6:35 am-12:47 pm

1 stop9h 12m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 21 results
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Compare providers for flights from Seattle to Jacksonville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Jacksonville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Jacksonville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Jacksonville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Jacksonville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Jacksonville flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Jacksonville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 January 16, 2026.

To ensure you get the cheapest price possible for a flight from Seattle to Jacksonville, you should look to book at least 48 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, June is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of $148). Flying from Seattle to Jacksonville in April is currently the most expensive (average of $330). 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.

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 January 21, 2026.
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
4,266 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,088 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,191 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,173 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Sun Country Air
6.9
Okay
343 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 36m. Fly via Delta or Southwest 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 ($121), Delta ($268), and United Airlines ($283) offers the cheapest pricing from Seattle to Jacksonville. These flights start at 73% 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 Sun Country Air. According to our data, you can fly for as low as $115. Users have also found prices from $134 and $152 on United Airlines and American Airlines, respectively.

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

    The most popular layover on flights from Seattle to Jacksonville is Atlanta. Atlanta is followed by Charlotte 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 Atlanta?

    If you're on a layover in Atlanta and looking for things to do, consider visiting Georgia Aquarium, Fox Theatre, or Centennial Olympic Park. Georgia Aquarium, Fox Theatre, and Centennial Olympic Park are located about 8.6 mi, 9.3 mi, and 8.4 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 $51.

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

    Carowind, NASCAR Hall of Fame, and North Carolina Blumenthal Performing Arts Center are the most popular attractions in Charlotte if you're in need of something to do during your layover. Carowind, NASCAR Hall of Fame, and North Carolina Blumenthal Performing Arts Center can be visited by traveling about 8.2 mi, 5.7 mi, and 5.8 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 $46.

  • 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, June is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of $148). Flying from Seattle to Jacksonville in April is currently the most expensive (average of $330). 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
Fernandina Beach
Kingsland
Waycross
Yulee

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Alternative routes for Seattle to Jacksonville

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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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$121Average$370FlexibilityNo cancel feeOn-time83%
DeltaCheapest$268Average$458FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$468FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$459FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$321Average$440FlexibilityNo cancel feeOn-time63%

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