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Cheap flights from Seattle to Jacksonville from C$ 249

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
7 Sep — 14 Sep1
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 8 August 2026.

Sat 5/911:10 p.m. -
1 stop8h 57m
Fri 11/95:40 p.m. -
1 stop9h 15m
Deal found 5/8C$ 513
Sat 5/97:50 a.m. -
1 stop7h 10m
Fri 11/94:50 p.m. -
2 stops10h 55m
Deal found 5/8C$ 527
Fri 11/911:05 p.m. -
1 stop8h 58m
Tue 15/911:59 a.m. -
1 stop9h 46m
Deal found 6/8C$ 530
Tue 25/89:10 a.m. -
1 stop9h 33m
Thu 10/95:40 p.m. -
1 stop9h 15m
Deal found 4/8C$ 537
Tue 25/811:59 p.m. -
1 stop7h 46m
Mon 31/84:45 p.m. -
1 stop8h 58m
Deal found 4/8C$ 540
Wed 26/87:10 a.m. -
2 stops9h 30m
Wed 9/95:25 p.m. -
1 stop9h 15m
Deal found 4/8C$ 544
Sat 12/911:05 p.m. -
1 stop8h 58m
Mon 14/95:40 p.m. -
1 stop9h 15m
Deal found 6/8C$ 547
Sat 7/116:45 a.m. -
2 stops10h 15m
Mon 9/111:30 p.m. -
1 stop8h 45m
Deal found 5/8C$ 554
Fri 4/911:59 p.m. -
1 stop7h 46m
Fri 11/94:45 p.m. -
1 stop9h 00m
Deal found 7/8C$ 556
Mon 16/116:10 a.m. -
1 stop7h 00m
Thu 19/116:35 a.m. -
2 stops14h 15m
Deal found 4/8C$ 562

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 8 August 2026.

Round-trip from

C$ 513

One-way from

C$ 249

Popular in

March

Cheapest in

October

Average price

C$ 633
Delta
  • Delta
  • 5/9-11/9
  • 2 total stops
  • 18h 12m total
  • Seattle to Jacksonville
Search Deals
Frontier
  • Frontier
  • 8/10
  • 2 total stops
  • 41h 35m total
  • Seattle to Jacksonville
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 8 August 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 Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Tue 13/10

7:00 a.m.-7:09 p.m.

1 stop9h 09m

Jacksonville

Sat 17/10

4:58 p.m.-10:56 p.m.

1 stop8h 58m

C$ 540

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Sat 17/10

11:14 p.m.-11:00 a.m.

1 stop8h 46m

Jacksonville

Tue 20/10

4:58 p.m.-10:56 p.m.

1 stop8h 58m

C$ 540
Quickest round-trip

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Fri 4/9

11:59 p.m.-10:45 a.m.

1 stop7h 46m

Jacksonville

Fri 11/9

4:45 p.m.-10:45 p.m.

1 stop9h 00m

C$ 556

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Sat 7/11

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

2 stops10h 15m

Jacksonville

Sat 14/11

12:35 p.m.-9:50 p.m.

2 stops12h 15m

C$ 561

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Mon 12/10

12:10 a.m.-12:50 p.m.

2 stops9h 40m

Jacksonville

Sat 17/10

6:10 a.m.-1:55 p.m.

2 stops10h 45m

C$ 561

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Tue 26/1

8:00 a.m.-7:46 p.m.

1 stop8h 46m

Jacksonville

Fri 29/1

4:45 p.m.-10:29 p.m.

1 stop8h 44m

C$ 573

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Fri 16/10

10:59 p.m.-11:37 a.m.

1 stop9h 38m

Jacksonville

Tue 27/10

5:49 p.m.-11:52 p.m.

1 stop9h 03m

C$ 580

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Mon 21/9

11:05 p.m.-12:55 p.m.

2 stops10h 50m

Jacksonville

Fri 25/9

7:25 a.m.-1:55 p.m.

1 stop9h 30m

C$ 587

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Tue 26/1

6:35 a.m.-8:10 p.m.

2 stops10h 35m

Jacksonville

Fri 29/1

11:05 a.m.-9:30 p.m.

2 stops13h 25m

C$ 596

SeattleJacksonville

SEA Seattle/Tacoma Intl - JAX Jacksonville

SEAJAX

Seattle/Tacoma Intl

Wed 9/9

11:05 p.m.-1:20 p.m.

2 stops11h 15m

Jacksonville

Sun 13/9

12:25 p.m.-9:45 p.m.

2 stops12h 20m

C$ 618

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 21 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?

The best time to book flights from Seattle to Jacksonville is 74 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, October is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of C$ 619). Flying from Seattle to Jacksonville in March is currently the most expensive (average of C$ 751). 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?

Airfare is below average for this route at the moment.

Seattle to Jacksonville flights typically cost between C$ 517 and C$ 706 in September.
The cheapest round-trip price found within the last 5 days was C$ 513 on Delta (5 Sep-11 Sep).

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$ 540, United Airlines can have you in Jacksonville from Seattle in 8h 46m. 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.

  • 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, October is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of C$ 619). Flying from Seattle to Jacksonville in March is currently the most expensive (average of C$ 751). 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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Seattle to Miami flights
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Seattle to Orlando flights
Bellingham to Miami flights

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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