HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Jacksonville

$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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Jacksonville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Jacksonville are usually found in September or October, booked 90 days in advance, depart on a Tuesday or Wednesday 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 June 12, 2025.

Round-trip from

$255
(American Airlines)

One-way from

$133
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$456
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. 9% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 8/276:10 amSEA - JAX
1 stop13h 17mAmerican Airlines
Tue 9/211:03 amJAX - SEA
1 stop11h 59mAmerican Airlines
Deal found 6/12$255
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2111:54 pmSEA - JAX
1 stop7h 31mUnited Airlines
Mon 8/257:00 amJAX - SEA
2 stops11h 14mUnited Airlines
Deal found 6/10$302
This Southwest deal was found by Cheapflights users on 6/12. 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 9/911:10 pmSEA - JAX
1 stop11h 35mSouthwest
Tue 9/161:20 pmJAX - SEA
2 stops10h 35mSouthwest
Deal found 6/12$308
This Delta deal was found by Cheapflights users on 6/12. 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 9/1512:40 amSEA - JAX
1 stop9h 38mDelta
Tue 10/143:45 pmJAX - SEA
1 stop9h 40mDelta
Deal found 6/12$328
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2411:59 pmSEA - JAX
1 stop8h 49mSun Country Air
Mon 7/2812:56 pmJAX - SEA
1 stop12h 51mSun Country Air
Deal found 6/10$340
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/311:59 pmSEA - JAX
1 stop9h 07mMultiple Airlines
Fri 7/115:14 pmJAX - SEA
2 stops26h 11mMultiple Airlines
Deal found 6/10$381
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/612:25 amSEA - JAX
1 stop7h 22mAlaska Airlines
Sat 8/167:30 amJAX - SEA
1 stop10h 45mAlaska Airlines
Deal found 6/10$482

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 June 12, 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 8/27

6:10 am-10:27 pm

1 stop13h 17m

Jacksonville

Tue 9/2

11:03 am-8:02 pm

1 stop11h 59m

$255

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 8/21

11:54 pm-10:25 am

1 stop7h 31m

Jacksonville

Mon 8/25

7:00 am-3:14 pm

2 stops11h 14m

$302

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 9/9

11:10 pm-1:45 pm

1 stop11h 35m

Jacksonville

Tue 9/16

1:20 pm-8:55 pm

2 stops10h 35m

$308

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 9/15

12:40 am-1:18 pm

1 stop9h 38m

Jacksonville

Tue 10/14

3:45 pm-10:25 pm

1 stop9h 40m

$328

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 7/24

11:59 pm-11:48 am

1 stop8h 49m

Jacksonville

Mon 7/28

12:56 pm-10:47 pm

1 stop12h 51m

$340

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 7/3

11:59 pm-12:06 pm

1 stop9h 07m

Jacksonville

Fri 7/11

5:14 pm-4:25 pm

2 stops26h 11m

$381

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 8/6

12:25 am-10:47 am

1 stop7h 22m

Jacksonville

Sat 8/16

7:30 am-3:15 pm

1 stop10h 45m

$482

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 8/20

6:10 am-10:27 pm

1 stop13h 17m

$133

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 8/7

3:15 pm-12:55 am

1 stop6h 40m

$149

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 8/11

11:10 pm-1:45 pm

1 stop11h 35m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 15 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 June 9, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Jacksonville, you should look to book at least 90 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 June 12, 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 afternoon, which can drop the price by up to 17% versus a flight in the evening.

Rainfall in Jacksonville by month

Plan your trip to Jacksonville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Jacksonville ranges from 2.1 - 8.2 inches per month. September is typically the wettest month, when rainfall can reach 8.2 in. November is typically the driest time to visit Jacksonville when rainfall is around 2.1 in.

Temperature in Jacksonville by month

Plan your trip to Jacksonville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Jacksonville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Seattle to Jacksonville. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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.

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

    According to our current data, American Airlines ($255), United Airlines ($302), and Southwest ($308) offers the cheapest pricing from Seattle to Jacksonville. These flights start at 47% 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 American Airlines. According to our data, you can fly for as low as $133. Users have also found prices from $149 and $154 on Delta and Southwest, 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 Dallas. Dallas 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 Dallas?

    If you're on a layover in Dallas and looking for things to do, consider visiting American Airlines Center, Dallas World Aquarium, or Reunion Tower. American Airlines Center, Dallas World Aquarium, and Reunion Tower are located about 15.0 mi, 15.5 mi, and 15.6 mi, respectively from Dallas/Fort Worth. Those on a layover in Dallas in need of a rental car can book one at Dallas/Fort Worth for about $61.

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

    Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are the most popular attractions in Charlotte if you're in need of something to do during your layover. Carowind, Mint Museum Uptown, and NASCAR Hall of Fame can be visited by traveling 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 $48.

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

    Seattle to Jacksonville flights have a layover in Atlanta 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 Seattle?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Jacksonville

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Orlando flights
Seattle to Miami flights
Seattle to Fort Lauderdale flights
Portland to Orlando flights
Seattle to Tampa flights
Portland to Miami flights
Portland to Tampa flights
Seattle to Pensacola flights
Portland to Fort Lauderdale flights
Seattle to Fort Myers flights
Seattle to West Palm Beach flights
Portland to Jacksonville flights
Seattle to Panama City flights
Spokane to Orlando flights
Seattle to Valparaiso flights
Portland to Pensacola flights
Seattle to Sarasota flights
Portland to Fort Myers flights
Portland to Panama City flights
Seattle to Tallahassee flights
Spokane to Tampa flights
Portland to Sarasota flights
Spokane to Jacksonville flights
Pasco to Orlando flights
Spokane to Miami flights
Spokane to Fort Lauderdale flights
Wenatchee to Orlando flights
Seattle to Key West flights
Portland to West Palm Beach flights
Pasco to Tampa flights
Portland to Valparaiso flights
Portland to Key West flights
Portland to Melbourne flights
Seattle to Daytona Beach flights
Portland to Daytona Beach flights
Seattle to Melbourne flights
Seattle to Gainesville flights
Wenatchee to Fort Lauderdale flights
Pasco to Miami flights
Wenatchee to Tampa flights
Spokane to Fort Myers flights
Spokane to Tallahassee flights
Pasco to Pensacola flights
Spokane to Valparaiso flights
Spokane to Daytona Beach flights
Portland to Gainesville flights
Walla Walla to Orlando flights
Spokane to Pensacola flights
Bellingham to Orlando flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$310Average$473FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$469FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$342Average$487FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$401Average$629FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$426Average$522FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.