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Cheap flights from Seattle to Jacksonville from C$ 234

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
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

C$ 416

One-way from

C$ 234

Popular in

December

Cheapest in

September

Average price

C$ 653
Sun Country Air
  • Sun Country Air
  • 28/8-1/9
  • 2 total stops
  • 35h 36m total
  • Seattle to Jacksonville
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Delta
  • Delta
  • 8/10
  • 1 total stop
  • 8h 27m total
  • Seattle to Jacksonville
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 3 July 2025.

Thu 28/811:55 p.m.SEA - JAX
1 stop8h 51mSun Country Air
Mon 1/911:13 a.m.JAX - SEA
1 stop26h 45mSun Country Air
Deal found 1/7C$ 416
Wed 13/89:10 p.m.SEA - JAX
1 stop10h 25mSouthwest
Mon 18/84:05 p.m.JAX - SEA
1 stop8h 25mSouthwest
Deal found 1/7C$ 461
Tue 5/811:45 p.m.SEA - JAX
1 stop7h 54mUnited Airlines
Tue 12/83:41 p.m.JAX - SEA
1 stop8h 31mUnited Airlines
Deal found 2/7C$ 467
Wed 27/89:45 p.m.SEA - JAX
1 stop9h 20mDelta
Wed 3/97:00 a.m.JAX - SEA
1 stop19h 15mDelta
Deal found 30/6C$ 488

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 3 July 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

Thu 28/8

11:55 p.m.-11:46 a.m.

1 stop8h 51m

Jacksonville

Mon 1/9

11:13 a.m.-10:58 a.m.

1 stop26h 45m

C$ 416

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 13/8

9:10 p.m.-10:35 a.m.

1 stop10h 25m

Jacksonville

Mon 18/8

4:05 p.m.-9:30 p.m.

1 stop8h 25m

C$ 461

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 18/9

11:54 p.m.-10:25 a.m.

1 stop7h 31m

Jacksonville

Mon 22/9

8:00 a.m.-3:32 p.m.

1 stop10h 32m

C$ 467

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 29/7

9:45 p.m.-10:45 a.m.

1 stop10h 00m

Jacksonville

Tue 2/9

5:20 a.m.-10:27 a.m.

1 stop8h 07m

C$ 470

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 8/10

9:20 p.m.-8:47 a.m.

1 stop8h 27m

C$ 234

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 20/8

7:34 p.m.-10:51 a.m.

2 stops12h 17m

C$ 241

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 8/10

5:50 a.m.-6:15 p.m.

2 stops9h 25m

C$ 252

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 8/7

11:20 p.m.-1:29 p.m.

1 stop11h 09m

C$ 440

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 8/8

12:25 a.m.-10:45 a.m.

1 stop7h 20m

C$ 571

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

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 27 June 2025.

The best time to book flights from Seattle to Jacksonville is 90 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, January is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of C$ 408). Flying from Seattle to Jacksonville in December is currently the most expensive (average of C$ 530). 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.

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 3 July 2025.
See what other customers who have flown with Alaska Airlines,Southwest, andDelta from Seattle to Jacksonville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

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
Check prices

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

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
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

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
2,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

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?

    Currently priced at C$ 416, Sun Country Air will fly you from Seattle to Jacksonville and back. In addition to Sun Country Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and United Airlines - these airlines can fly you to your destination from C$ 461 and C$ 467, respectively. Sun Country Air is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Jacksonville one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 234. Users have also found prices from C$ 241 and C$ 252 on United Airlines and Southwest, 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, January is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of C$ 408). Flying from Seattle to Jacksonville in December is currently the most expensive (average of C$ 530). 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 Seattle?

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

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Alternative routes for Seattle to Jacksonville

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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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