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Cheap flights from Seattle to Jacksonville from C$ 254

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Seattle to Jacksonville

Enter your travel dates to find the best prices.

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 13 November 2025.

Mon 24/117:20 a.m.SEA - JAX
1 stop12h 06mDelta
Sat 6/1212:10 p.m.JAX - SEA
1 stop13h 13mDelta
Deal found 13/11C$ 500
Tue 9/122:03 p.m.SEA - JAX
1 stop7h 02mDelta
Wed 17/125:35 p.m.JAX - SEA
1 stop9h 23mDelta
Deal found 12/11C$ 503
Wed 10/125:00 a.m.SEA - JAX
1 stop7h 24mUnited Airlines
Wed 17/124:30 p.m.JAX - SEA
2 stops11h 20mUnited Airlines
Deal found 11/11C$ 510
Thu 4/1211:59 p.m.SEA - JAX
1 stop10h 05mDelta
Wed 10/125:35 p.m.JAX - SEA
1 stop9h 23mDelta
Deal found 12/11C$ 521
Thu 4/127:05 a.m.SEA - JAX
2 stops9h 10mSouthwest
Wed 10/121:05 p.m.JAX - SEA
2 stops12h 50mSouthwest
Deal found 12/11C$ 535
Thu 11/1212:35 p.m.SEA - JAX
1 stop7h 39mUnited Airlines
Thu 18/124:55 p.m.JAX - SEA
1 stop10h 39mUnited Airlines
Deal found 13/11C$ 539
Fri 12/1212:35 p.m.SEA - JAX
1 stop7h 39mUnited Airlines
Mon 15/125:16 p.m.JAX - SEA
1 stop8h 31mUnited Airlines
Deal found 12/11C$ 576
Fri 12/125:15 a.m.SEA - JAX
2 stops11h 20mSouthwest
Mon 15/128:15 a.m.JAX - SEA
2 stops13h 25mSouthwest
Deal found 12/11C$ 598
Fri 5/1212:35 p.m.SEA - JAX
1 stop7h 39mUnited Airlines
Mon 8/124:37 p.m.JAX - SEA
1 stop8h 51mUnited Airlines
Deal found 11/11C$ 618
Thu 25/125:40 a.m.SEA - JAX
1 stop9h 40mSouthwest
Wed 31/127:40 a.m.JAX - SEA
1 stop14h 00mSouthwest
Deal found 12/11C$ 635

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 13 November 2025.

Round-trip from

C$ 479

One-way from

C$ 254

Popular in

December

Cheapest in

September

Average price

C$ 745
JetBlue
  • JetBlue
  • 5/5-14/5
  • 2 total stops
  • 25h 07m total
  • Seattle to Jacksonville
Search Deals
Southwest
  • Southwest
  • 20/2
  • 2 total stops
  • 8h 40m total
  • Seattle to Jacksonville
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 629,999 searches. Data last updated 13 November 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

Tue 5/5

11:59 p.m.-3:43 p.m.

1 stop12h 44m

Jacksonville

Thu 14/5

11:30 a.m.-8:53 p.m.

1 stop12h 23m

C$ 479

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 3/3

6:04 a.m.-4:44 p.m.

1 stop7h 40m

Jacksonville

Wed 4/3

7:30 a.m.-12:20 p.m.

1 stop7h 50m

C$ 503

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 28/1

6:15 a.m.-6:52 p.m.

1 stop9h 37m

Jacksonville

Sat 31/1

7:30 a.m.-12:20 p.m.

1 stop7h 50m

C$ 509

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Sat 14/2

2:05 p.m.-11:50 p.m.

1 stop6h 45m

Jacksonville

Thu 19/2

4:20 p.m.-10:50 p.m.

1 stop9h 30m

C$ 516

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 5/2

6:35 a.m.-4:50 p.m.

1 stop7h 15m

Jacksonville

Tue 10/2

5:50 a.m.-10:45 a.m.

1 stop7h 55m

C$ 521

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Sun 1/2

6:35 a.m.-9:15 p.m.

2 stops11h 40m

Jacksonville

Sat 7/2

5:00 a.m.-10:10 a.m.

1 stop8h 10m

C$ 570

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 9/1

8:10 a.m.-8:10 p.m.

1 stop9h 00m

Jacksonville

Mon 12/1

8:10 a.m.-1:57 p.m.

1 stop8h 47m

C$ 576

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 29/1

6:15 a.m.-6:52 p.m.

1 stop9h 37m

Jacksonville

Sun 1/2

5:30 a.m.-10:07 a.m.

1 stop7h 37m

C$ 576

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 20/2

5:00 a.m.-4:40 p.m.

2 stops8h 40m

C$ 254

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 15/12

12:35 p.m.-11:14 p.m.

1 stop7h 39m

C$ 270

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 17 results
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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 7 November 2025.

The best time to book flights from Seattle to Jacksonville is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 C$ 206). Flying from Seattle to Jacksonville in March is currently the most expensive (average of C$ 479). 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.

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?

    For as low as C$ 503, JetBlue can have you in Jacksonville from Seattle in 7h 40m. There are 3924 km between Seattle and Jacksonville. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 C$ 254. Users have also found prices from C$ 270 and C$ 284 on United Airlines and JetBlue, respectively.

  • 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 C$ 206). Flying from Seattle to Jacksonville in March is currently the most expensive (average of C$ 479). 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

Travelling to a place near Jacksonville?

Book flights to Jacksonville if you plan to visit one of these locations
Kingsland

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Alternative routes for Seattle to Jacksonville

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Jacksonville?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Jacksonville. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Jacksonville?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Jacksonville from Seattle.

Can Cheapflights find flights from Seattle to Jacksonville with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Jacksonville with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Jacksonville become cheaper?

Yes! Start tracking prices for Seattle to Jacksonville flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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