$124+ Cheap flights from Seattle to Jacksonville (SEA - JAX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — JAX
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Jacksonville
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Best
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One-way
Cheapest flights from Seattle to JacksonvilleExplore 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 October 25, 2026.
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 October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
1 stop7h 58m
Mon 12/74:45 pm -
1 stop8h 58m
Deal found 10/21![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:00 am -
1 stop8h 38m
Sat 12/52:32 pm -
1 stop9h 18m
Deal found 10/22![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:05 am -
2 stops9h 53m
Wed 12/164:45 pm -
1 stop9h 00m
Deal found 10/23![United Airlines logo]()
$324
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:40 am -
2 stops11h 40m
Mon 12/216:55 pm -
1 stop9h 25m
Deal found 10/22![Southwest logo]()
$329
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:30 am -
1 stop7h 35m
Thu 12/177:05 pm -
1 stop8h 30m
Deal found 10/22![Southwest logo]()
$330
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:10 am -
2 stops12h 05m
Thu 12/101:30 pm -
2 stops12h 20m
Deal found 10/20![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:30 am -
1 stop7h 35m
Wed 12/91:30 pm -
2 stops12h 20m
Deal found 10/21![Southwest logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:32 pm -
1 stop28h 14m
Fri 12/115:47 pm -
2 stops24h 56m
Deal found 10/22![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:32 pm -
1 stop28h 14m
Wed 12/93:39 pm -
2 stops23h 52m
Deal found 10/22![Multiple Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:09 am -
1 stop10h 01m
Mon 11/234:45 pm -
1 stop9h 22m
Deal found 10/20![United Airlines logo]()
$356
Best flights from Seattle to JacksonvilleDiscover carefully curated flight deals from Seattle to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Seattle to Jacksonville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:05 am -
1 stop7h 12m
Wed 12/164:45 pm -
1 stop9h 00m
Deal found 10/23![United Airlines logo]()
$318
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:30 am -
1 stop7h 35m
Wed 12/91:30 pm -
1 stop13h 05m
Deal found 10/19![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
1 stop7h 58m
Mon 12/74:45 pm -
1 stop8h 58m
Deal found 10/22![United Airlines logo]()
$318
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:20 am -
2 stops10h 55m
Sun 1/105:30 am -
1 stop8h 15m
Deal found 10/21![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:30 am -
2 stops11h 45m
Thu 11/194:15 pm -
1 stop8h 04m
Deal found 10/19![United Airlines logo]()
$370
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:10 am -
2 stops12h 05m
Mon 12/215:15 pm -
2 stops11h 30m
Deal found 10/23![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/910:48 am -
1 stop7h 48m
Sat 12/124:25 pm -
1 stop7h 56m
Deal found 10/22![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:00 am -
1 stop7h 58m
Tue 12/1511:37 am -
2 stops13h 21m
Deal found 10/19![United Airlines logo]()
$458
Last-minute flights from Seattle to JacksonvilleDiscover last-minute flight deals from Seattle to Jacksonville. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Jacksonville. Data last updated October 25, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:09 pm -
2 stops18h 59m
Tue 11/107:03 pm -
2 stops23h 09m
Deal found 10/22![Frontier logo]()
$434
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:05 am -
1 stop6h 58m
Thu 11/128:00 am -
2 stops11h 27m
Deal found 10/21![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:25 am -
1 stop9h 21m
Tue 11/175:05 am -
1 stop8h 00m
Deal found 10/20![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:30 am -
2 stops11h 45m
Tue 1/55:26 pm -
1 stop8h 28m
Deal found 10/20![United Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:40 am -
2 stops12h 40m
Tue 1/56:35 am -
2 stops14h 15m
Deal found 10/20![Southwest logo]()
$431
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:45 pm -
1 stop9h 03m
Mon 11/166:22 am -
1 stop8h 15m
Deal found 10/20![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:45 pm -
1 stop9h 21m
Thu 11/196:36 am -
1 stop11h 15m
Deal found 10/21![American Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:05 am -
1 stop7h 55m
Tue 11/244:15 pm -
2 stops11h 44m
Deal found 10/20![United Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
1 stop7h 25m
Tue 12/15:00 am -
1 stop8h 12m
Deal found 10/22![American Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:20 am -
1 stop7h 50m
Sat 11/215:30 pm -
2 stops11h 05m
Deal found 10/20![Southwest logo]()
$437
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:09 am -
1 stop10h 01m
Mon 11/234:45 pm -
1 stop9h 22m
Deal found 10/20![United Airlines logo]()
$356
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:40 am -
1 stop8h 48m
Wed 12/27:20 am -
1 stop9h 39m
Deal found 10/24![American Airlines logo]()
$393
One-way flights from Seattle to JacksonvilleSearch for one-way flight options from Seattle to Jacksonville. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Seattle to Jacksonville. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:58 pm -
2 stops42h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:32 pm -
2 stops21h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:58 pm -
3 stops36h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$159
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:40 pm -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Delta logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/24:58 pm -
3 stops45h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$163
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:35 pm -
2 stops12h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:10 am -
2 stops12h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$168
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:30 am -
1 stop7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:56 pm -
2 stops38h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:27 pm -
3 stops37h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$187
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $318 (United Airlines) |
One-way from | $124 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $545 |
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 7,457,451 searches. Data last updated October 25, 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
Cheapest round-trip
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Tue 11/10
6:00 am-5:43 pm
1 stop8h 43m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$162
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Tue 12/8
7:30 pm-10:44 am
2 stops12h 14m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$167
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Wed 11/11
7:35 pm-10:44 am
2 stops12h 09m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$167
Quickest round-trip
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Sun 1/17
6:35 am-4:45 pm
1 stop7h 10m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$169
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Thu 12/24
9:55 pm-10:07 am
1 stop9h 12m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$197
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Tue 12/1
11:15 pm-11:05 am
1 stop8h 50m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$197
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Sat 11/21
10:56 pm-11:10 am
1 stop9h 14m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$197
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Sun 3/28
9:55 pm-10:49 am
1 stop9h 54m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Fri 11/20
6:00 am-4:30 pm
1 stop7h 30m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
SeattleJacksonville
SEA Seattle/Tacoma Intl - JAX Jacksonville
SEAJAX
Seattle/Tacoma Intl
Tue 12/1
5:40 am-9:20 pm
2 stops12h 40m
Jacksonville
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$257
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Jacksonville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Jacksonville in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Jacksonville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Jacksonville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Jacksonville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Jacksonville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Jacksonville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
SEA-JAX
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?
To ensure you get the cheapest price possible for a flight from Seattle to Jacksonville, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Jacksonville?
Currently, August is the cheapest month in which you can book a flight from Seattle to Jacksonville (average of $453). Flying from Seattle to Jacksonville in December is currently the most expensive (average of $561). 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 $389 and $680 in December.The cheapest round-trip price found within the last 5 days was $318 on United Airlines (Dec 3-Dec 7).
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 October 25, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Seattle to Jacksonville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Crew
8.6
Overall
7.9
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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.
Traveling to a place near Jacksonville?
Book flights to Jacksonville if you plan to visit one of these locationsJacksonville Beach
Fernandina Beach
Orange Park
Kingsland
Waycross
Atlantic Beach
Yulee
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Top 4 airlines flying from Seattle to Jacksonville
Discover the top 4 airlines that operate flights from Seattle to Jacksonville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$506 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$342 | Average$505 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$358 | Average$492 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$366 | Average$506 | FlexibilityNo cancel fee | On-time63% |