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Cheap flights from Seattle to Jacksonville from C$ 204

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 406

One-way from

C$ 204

Popular in

December

Cheapest in

September

Average price

C$ 623
United Airlines
  • United Airlines
  • 12/8-14/8
  • 2 total stops
  • 17h 33m total
  • Seattle to Jacksonville
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Delta
  • Delta
  • 24/9
  • 1 total stop
  • 9h 38m total
  • Seattle to Jacksonville
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Highest demand for flights based on searches. 9% potential increase in price (C$ 89 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 June 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 12 June 2025.

Tue 12/811:20 p.m.SEA - JAX
1 stop8h 32mUnited Airlines
Thu 14/86:55 p.m.JAX - SEA
1 stop9h 01mUnited Airlines
Deal found 12/6C$ 406
Fri 14/1112:40 a.m.SEA - JAX
1 stop9h 38mDelta
Tue 2/122:30 p.m.JAX - SEA
1 stop9h 02mDelta
Deal found 11/6C$ 418
Tue 9/911:10 p.m.SEA - JAX
1 stop11h 35mSouthwest
Tue 16/91:20 p.m.JAX - SEA
2 stops10h 35mSouthwest
Deal found 12/6C$ 421
Thu 24/711:59 p.m.SEA - JAX
1 stop8h 49mSun Country Air
Mon 28/712:56 p.m.JAX - SEA
1 stop12h 51mSun Country Air
Deal found 11/6C$ 520
Fri 18/75:19 a.m.SEA - JAX
1 stop9h 01mAmerican Airlines
Mon 21/75:38 p.m.JAX - SEA
1 stop9h 19mAmerican Airlines
Deal found 9/6C$ 570
Thu 17/712:25 a.m.SEA - JAX
1 stop14h 38mMultiple Airlines
Mon 21/71:02 p.m.JAX - SEA
1 stop12h 45mMultiple Airlines
Deal found 9/6C$ 580
Fri 5/912:59 a.m.SEA - JAX
1 stop9h 12mAlaska Airlines
Wed 10/92:24 p.m.JAX - SEA
2 stops11h 05mAlaska Airlines
Deal found 12/6C$ 618

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 12 June 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 12/8

11:20 p.m.-10:52 a.m.

1 stop8h 32m

Jacksonville

Thu 14/8

6:55 p.m.-12:56 a.m.

1 stop9h 01m

C$ 406

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 14/11

12:40 a.m.-1:18 p.m.

1 stop9h 38m

Jacksonville

Tue 2/12

2:30 p.m.-8:32 p.m.

1 stop9h 02m

C$ 418

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Tue 9/9

11:10 p.m.-1:45 p.m.

1 stop11h 35m

Jacksonville

Tue 16/9

1:20 p.m.-8:55 p.m.

2 stops10h 35m

C$ 421

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 24/7

11:59 p.m.-11:48 a.m.

1 stop8h 49m

Jacksonville

Mon 28/7

12:56 p.m.-10:47 p.m.

1 stop12h 51m

C$ 520

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 18/7

5:19 a.m.-5:20 p.m.

1 stop9h 01m

Jacksonville

Mon 21/7

5:38 p.m.-11:57 p.m.

1 stop9h 19m

C$ 570

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 17/7

12:25 a.m.-6:03 p.m.

1 stop14h 38m

Jacksonville

Mon 21/7

1:02 p.m.-10:47 p.m.

1 stop12h 45m

C$ 580

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Fri 5/9

12:59 a.m.-1:11 p.m.

1 stop9h 12m

Jacksonville

Wed 10/9

2:24 p.m.-10:29 p.m.

2 stops11h 05m

C$ 618

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Wed 24/9

12:40 a.m.-1:18 p.m.

1 stop9h 38m

C$ 204

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Mon 11/8

11:10 p.m.-1:45 p.m.

1 stop11h 35m

C$ 211

SeattleJacksonville

SEA - JAX

SEAJAX

Seattle/Tacoma Intl

Thu 3/7

11:59 p.m.-12:06 p.m.

1 stop9h 07m

C$ 223

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 13 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 9 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.

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 53.0 - 208.0 mm per month. September is typically the wettest month, when rainfall can reach 208.0 mm. November is typically the driest time to visit Jacksonville when rainfall is around 53.0 mm.

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 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.0 C).

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 12 June 2025.
To help decide which airline to fly from Seattle to Jacksonville, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

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
Check prices

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
Check prices

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
Check prices

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
Check prices

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
Check prices

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?

    Currently priced at C$ 406, United Airlines will fly you from Seattle to Jacksonville and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from C$ 418 and C$ 421, respectively. United Airlines is priced at 38% 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$ 204. Users have also found prices from C$ 211 and C$ 223 on Southwest and Sun Country Air, 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?

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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.

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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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