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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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 23 March 2026.

Tue 21/46:00 a.m.
SEA
-
JAX
1 stop12h 15m
Southwest
Tue 28/42:20 p.m.
JAX
-
SEA
2 stops11h 10m
Southwest
Deal found 22/3C$ 435
Wed 27/512:04 p.m.
SEA
-
JAX
1 stop8h 16m
United Airlines
Tue 2/64:42 p.m.
JAX
-
SEA
1 stop10h 17m
United Airlines
Deal found 19/3C$ 530
Wed 13/510:35 p.m.
SEA
-
JAX
1 stop8h 06m
Delta
Wed 3/65:30 p.m.
JAX
-
SEA
1 stop9h 13m
Delta
Deal found 20/3C$ 536
Wed 15/46:50 a.m.
SEA
-
JAX
2 stops10h 45m
Southwest
Wed 29/44:30 p.m.
JAX
-
SEA
1 stop9h 00m
Southwest
Deal found 20/3C$ 543
Sat 18/46:00 a.m.
SEA
-
JAX
1 stop8h 06m
Delta
Tue 28/47:00 a.m.
JAX
-
SEA
1 stop10h 42m
Delta
Deal found 20/3C$ 547
Wed 27/56:00 a.m.
SEA
-
JAX
1 stop12h 15m
Southwest
Tue 2/62:20 p.m.
JAX
-
SEA
2 stops11h 10m
Southwest
Deal found 19/3C$ 551

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 23 March 2026.

Round-trip from

C$ 435

One-way from

C$ 254

Popular in

March

Cheapest in

August

Average price

C$ 748
Southwest
  • Southwest
  • 21/4-28/4
  • 3 total stops
  • 23h 25m total
  • Seattle to Jacksonville
Search Deals
Southwest
  • Southwest
  • 25/4
  • 1 total stop
  • 7h 25m total
  • Seattle to Jacksonville
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 629,999 searches. Data last updated 23 March 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

Thu 16/4

5:15 a.m.-10:05 p.m.

1 stop13h 50m

Jacksonville

Wed 22/4

4:30 p.m.-10:30 p.m.

1 stop9h 00m

C$ 564

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 10/6

5:00 a.m.-9:40 p.m.

1 stop13h 40m

Jacksonville

Sun 14/6

6:55 a.m.-7:05 p.m.

1 stop15h 10m

C$ 576

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Sat 9/5

7:15 a.m.-7:47 p.m.

1 stop9h 32m

Jacksonville

Thu 14/5

5:30 p.m.-11:44 p.m.

1 stop9h 14m

C$ 578
Quickest round-trip

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 15/4

11:15 p.m.-8:47 a.m.

1 stop6h 32m

Jacksonville

Tue 16/6

5:55 p.m.-11:26 p.m.

1 stop8h 31m

C$ 595

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 29/4

6:00 a.m.-8:45 p.m.

2 stops11h 45m

Jacksonville

Mon 4/5

3:35 p.m.-11:30 p.m.

2 stops10h 55m

C$ 624

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 10/4

10:35 p.m.-10:21 a.m.

1 stop8h 46m

Jacksonville

Wed 15/4

6:35 a.m.-12:47 p.m.

1 stop9h 12m

C$ 637

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 15/6

9:25 p.m.-10:25 a.m.

1 stop10h 00m

Jacksonville

Wed 24/6

2:55 p.m.-9:45 p.m.

1 stop9h 50m

C$ 654

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 24/4

5:15 a.m.-7:35 p.m.

2 stops11h 20m

Jacksonville

Mon 4/5

5:10 a.m.-10:25 a.m.

1 stop8h 15m

C$ 661

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 9/7

7:50 a.m.-10:35 p.m.

2 stops11h 45m

Jacksonville

Mon 13/7

7:15 p.m.-12:25 a.m.

1 stop8h 10m

C$ 661

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 3/6

12:04 p.m.-11:20 p.m.

1 stop8h 16m

Jacksonville

Tue 9/6

6:30 p.m.-11:59 p.m.

1 stop8h 29m

C$ 667

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/3

Showing 1-10 of 22 resultsSorted by cheapest first
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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 13 March 2026.

The best time to book flights from Seattle to Jacksonville is 48 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$ 199). Flying from Seattle to Jacksonville in February is currently the most expensive (average of C$ 465). 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$ 564, Southwest can have you in Jacksonville from Seattle in 13h 50m. There are 3924 km between Seattle and Jacksonville.

  • 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$ 199). Flying from Seattle to Jacksonville in February is currently the most expensive (average of C$ 465). 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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