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$151+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Jacksonville are usually found in September or August, booked 46 days in advance, depart on a Friday or Tuesday and return on a Monday

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 December 8, 2025.

This American Airlines deal was found by Cheapflights users on 12/8. 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 12/255:23 amSEA - JAX
1 stop7h 41mAmerican Airlines
Thu 1/16:00 amJAX - SEA
1 stop9h 37mAmerican Airlines
Deal found 12/8$503
This American Airlines deal was found by Cheapflights users on 12/6. 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 12/3012:43 pmSEA - JAX
1 stop8h 16mAmerican Airlines
Mon 1/54:55 pmJAX - SEA
1 stop9h 13mAmerican Airlines
Deal found 12/6$520
This American Airlines deal was found by Cheapflights users on 12/6. 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 12/177:00 amSEA - JAX
1 stop12h 55mAmerican Airlines
Wed 1/76:11 amJAX - SEA
1 stop10h 51mAmerican Airlines
Deal found 12/6$535
This Southwest deal was found by Cheapflights users on 12/7. 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 12/316:35 amSEA - JAX
1 stop7h 20mSouthwest
Sun 1/45:05 pmJAX - SEA
2 stops11h 20mSouthwest
Deal found 12/7$544
This Kiwi.com deal was found by Cheapflights users on 12/6. 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.
Wed 12/176:08 pmSEA - JAX
2 stops24h 12mMultiple Airlines
Wed 1/79:39 amJAX - SEA
1 stop26h 25mMultiple Airlines
Deal found 12/6$567
This American Airlines deal was found by Cheapflights users on 12/8. 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 12/177:00 amSEA - JAX
1 stop12h 55mAmerican Airlines
Wed 12/243:43 pmJAX - SEA
1 stop10h 59mAmerican Airlines
Deal found 12/8$579
This Southwest deal was found by Cheapflights users on 12/7. 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 12/256:35 amSEA - JAX
1 stop7h 20mSouthwest
Fri 1/25:05 pmJAX - SEA
2 stops11h 20mSouthwest
Deal found 12/7$583
This Delta deal was found by Cheapflights users on 12/8. 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 12/1811:40 amSEA - JAX
1 stop9h 25mDelta
Wed 12/243:12 pmJAX - SEA
1 stop8h 33mDelta
Deal found 12/8$604
This Delta deal was found by Cheapflights users on 12/8. 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 12/2510:55 pmSEA - JAX
1 stop6h 53mDelta
Sun 1/48:04 pmJAX - SEA
2 stops17h 41mDelta
Deal found 12/8$606

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$301
(United Airlines)

One-way from

$151
(Delta)

Popular in

December

Cheapest in

September

Average price

$566
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. 5% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 8, 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 1/7

10:58 am-9:44 pm

1 stop7h 46m

Jacksonville

Sat 1/10

7:00 am-3:44 pm

2 stops11h 44m

$306

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 1/6

9:59 pm-10:27 am

1 stop9h 28m

Jacksonville

Thu 1/15

2:35 pm-8:46 pm

1 stop9h 11m

$320

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 1/8

8:10 am-8:10 pm

1 stop9h 00m

Jacksonville

Wed 1/14

5:05 pm-10:59 pm

1 stop8h 54m

$320

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 1/14

6:45 am-4:50 pm

1 stop7h 05m

Jacksonville

Sat 1/17

5:00 am-10:10 am

1 stop8h 10m

$334

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 1/6

9:59 pm-10:27 am

1 stop9h 28m

Jacksonville

Sat 1/17

2:03 pm-7:38 pm

1 stop8h 35m

$334

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 1/14

6:00 am-6:47 pm

2 stops9h 47m

Jacksonville

Sat 1/17

2:42 pm-9:50 pm

2 stops10h 08m

$344

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 1/28

6:15 am-6:52 pm

1 stop9h 37m

Jacksonville

Sat 1/31

7:30 am-2:18 pm

1 stop9h 48m

$367

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 1/28

11:55 am-10:57 pm

1 stop8h 02m

Jacksonville

Sat 1/31

2:42 pm-10:20 pm

2 stops10h 38m

$372

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 12/25

8:15 am-6:56 pm

1 stop7h 41m

$151

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 12/24

12:44 pm-11:16 pm

1 stop7h 32m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 15 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Jacksonville flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Jacksonville, you should look to book at least 46 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 March is currently the most expensive (average of $342). 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 December 8, 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 22% 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 December 8, 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
4,252 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
4,252 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
8,011 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
9,078 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
11,044 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
334 reviews
Southwest
8.0
Very good
4,252 reviews

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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 46m. Fly via United Airlines or Delta 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 ($254), and United Airlines ($288) 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 $153 and $153 on American Airlines and JetBlue, 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 $54.

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

    Carowind, NASCAR Hall of Fame, and Mint Museum Uptown 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 Mint Museum Uptown can be visited by traveling about 8.2 mi, 5.7 mi, and 5.4 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 $49.

  • 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 March is currently the most expensive (average of $342). 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

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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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$200Average$370FlexibilityNo cancel feeOn-time83%
DeltaCheapest$297Average$454FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$300Average$495FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$316Average$463FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$358Average$490FlexibilityNo cancel feeOn-time63%

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