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$141+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
May 21 — May 281
Thu 5/21
Thu 5/28
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 April 21, 2026.

This Delta deal was found by Cheapflights users on 4/21. 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 5/206:00 am
SEA
-
JAX
1 stop7h 35m
Delta
Wed 5/275:30 pm
JAX
-
SEA
1 stop9h 14m
Delta
Deal found 4/21$305
This Delta deal was found by Cheapflights users on 4/20. 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.
Wed 5/136:00 am
SEA
-
JAX
1 stop8h 59m
Delta
Wed 6/32:35 pm
JAX
-
SEA
1 stop9h 15m
Delta
Deal found 4/20$323
This American Airlines deal was found by Cheapflights users on 4/21. 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 8/2010:17 am
SEA
-
JAX
1 stop10h 20m
American Airlines
Tue 8/2511:03 am
JAX
-
SEA
1 stop9h 22m
American Airlines
Deal found 4/21$337
This Delta deal was found by Cheapflights users on 4/21. 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 5/1910:35 pm
SEA
-
JAX
1 stop9h 54m
Delta
Wed 5/205:30 pm
JAX
-
SEA
1 stop9h 14m
Delta
Deal found 4/21$341
This American Airlines deal was found by Cheapflights users on 4/21. 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 5/275:15 am
SEA
-
JAX
1 stop8h 59m
American Airlines
Thu 6/46:05 pm
JAX
-
SEA
1 stop7h 54m
American Airlines
Deal found 4/21$355
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:05 am
SEA
-
JAX
1 stop8h 12m
American Airlines
Thu 9/1712:59 pm
JAX
-
SEA
1 stop8h 50m
American Airlines
Deal found 4/20$369
This Delta deal was found by Cheapflights users on 4/21. 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.
Sat 5/166:00 am
SEA
-
JAX
1 stop7h 35m
Delta
Wed 5/205:30 pm
JAX
-
SEA
1 stop9h 14m
Delta
Deal found 4/21$374
This Delta deal was found by Cheapflights users on 4/21. 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.
Mon 5/1810:35 pm
SEA
-
JAX
1 stop11h 28m
Delta
Wed 5/205:30 pm
JAX
-
SEA
1 stop9h 14m
Delta
Deal found 4/21$378
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:15 am
SEA
-
JAX
1 stop7h 58m
American Airlines
Thu 9/245:50 pm
JAX
-
SEA
1 stop10h 23m
American Airlines
Deal found 4/20$379
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:06 am
SEA
-
JAX
2 stops27h 29m
Multiple Airlines
Tue 5/199:23 am
JAX
-
SEA
1 stop12h 12m
Multiple Airlines
Deal found 4/19$380
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:35 pm
SEA
-
JAX
1 stop11h 32m
American Airlines
Tue 6/21:44 pm
JAX
-
SEA
1 stop10h 23m
American Airlines
Deal found 4/16$391
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:40 am
SEA
-
JAX
1 stop8h 15m
Southwest
Tue 9/295:25 pm
JAX
-
SEA
1 stop9h 10m
Southwest
Deal found 4/20$392

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 April 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$305
(Delta)

One-way from

$141
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$511
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. 6% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 21, 2026.
Use the filters below to find and compare flights from Seattle to Jacksonville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 6/3

5:30 am-5:19 pm

1 stop8h 49m

Jacksonville

Sun 6/7

5:49 pm-11:59 pm

1 stop9h 10m

$391

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 5/19

5:30 am-5:19 pm

1 stop8h 49m

Jacksonville

Wed 5/20

5:30 pm-11:44 pm

1 stop9h 14m

$407

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 5/18

11:05 pm-10:45 am

1 stop8h 40m

Jacksonville

Wed 5/20

5:30 pm-11:44 pm

1 stop9h 14m

$442

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 5/19

10:35 pm-11:29 am

1 stop9h 54m

Jacksonville

Sat 5/23

2:35 pm-9:45 pm

1 stop10h 10m

$450
Quickest round-trip

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 7/2

9:00 am-6:35 pm

1 stop6h 35m

Jacksonville

Tue 7/7

2:55 pm-9:45 pm

1 stop9h 50m

$477

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 5/13

6:00 am-8:45 pm

2 stops11h 45m

Jacksonville

Sat 5/16

5:10 am-10:25 am

1 stop8h 15m

$480

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 5/19

6:00 am-9:30 pm

2 stops12h 30m

Jacksonville

Mon 5/25

5:10 am-10:25 am

1 stop8h 15m

$513

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 5/13

7:00 am-8:02 pm

1 stop10h 02m

Jacksonville

Sun 5/24

7:20 am-3:41 pm

1 stop11h 21m

$552

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 6/3

5:00 am-8:06 pm

2 stops12h 06m

Jacksonville

Tue 6/9

4:42 pm-11:59 pm

1 stop10h 17m

$580

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Sun 5/24

9:00 am-11:42 pm

2 stops11h 42m

Jacksonville

Fri 5/29

8:52 am-8:28 pm

2 stops14h 36m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 23 resultsSorted by cheapest first
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 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 FlightHub the most. FlightHub 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 April 17, 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, August is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of $392). Flying from Seattle to Jacksonville in May is currently the most expensive (average of $557). 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.

How much does it cost to fly round-trip from Seattle to Jacksonville?

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 April 21, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,434 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,613 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,645 reviews
Southwest
8.0
Very good
4,331 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 6h 35m. 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, Delta ($228), United Airlines ($291), and American Airlines ($306) offers the cheapest pricing from Seattle to Jacksonville. These flights start at 51% 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 $114. 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 Charlotte.

  • 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 North Carolina Blumenthal Performing Arts Center, NASCAR Hall of Fame, or Mint Museum Uptown. North Carolina Blumenthal Performing Arts Center, NASCAR Hall of Fame, and Mint Museum Uptown are located about 5.8 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 $51.

  • 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 $392). Flying from Seattle to Jacksonville in May is currently the most expensive (average of $557). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Seattle to Jacksonville

Discover the top 4 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 April 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$503FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$291Average$486FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$478FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$321Average$467FlexibilityNo cancel feeOn-time63%

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