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$135+ Cheap flights from Jacksonville to Seattle (JAX - SEA)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — SEA
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Jacksonville to Seattle/Tacoma Intl are usually found in September or October, booked 76 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Jacksonville to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) to Seattle (SEA). 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 July 28, 2025.

Round-trip from

$307
(Delta)

One-way from

$135
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$496
From Jacksonville to Seattle/Tacoma Intl
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One-way flight from Jacksonville to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 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 Jacksonville to Seattle

Cheapest flights from Jacksonville to Seattle
Explore the most affordable flight options available from Jacksonville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Delta deal was found by Cheapflights users on 7/25. 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.
Mon 8/186:44 pmJAX - SEA
1 stop8h 15mDelta
Wed 8/276:00 amSEA - JAX
1 stop7h 47mDelta
Deal found 7/25$307
This United Airlines deal was found by Cheapflights users on 7/25. 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 8/207:00 amJAX - SEA
2 stops11h 19mUnited Airlines
Wed 8/2711:54 pmSEA - JAX
1 stop7h 31mUnited Airlines
Deal found 7/25$312
This American Airlines deal was found by Cheapflights users on 7/26. 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 9/108:01 amJAX - SEA
1 stop9h 33mAmerican Airlines
Wed 9/1711:40 amSEA - JAX
1 stop8h 15mAmerican Airlines
Deal found 7/26$321
This Southwest deal was found by Cheapflights users on 7/26. 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 10/2811:25 amJAX - SEA
2 stops11h 25mSouthwest
Fri 10/315:45 amSEA - JAX
1 stop12h 00mSouthwest
Deal found 7/26$347
This Trip.com deal was found by Cheapflights users on 7/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:42 amJAX - SEA
1 stop11h 47mMultiple Airlines
Wed 9/177:00 amSEA - JAX
2 stops25h 43mMultiple Airlines
Deal found 7/26$405

Cheapflights Fare Finder

 
Customize your flight search to find flights from Jacksonville to Seattle 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 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Jacksonville to Seattle that are best for you.

Fly from

Jacksonville

Fly to

Seattle

Route

Depart

Return

Price

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Mon 8/18

6:44 pm-11:59 pm

1 stop8h 15m

Seattle/Tacoma Intl

Wed 8/27

6:00 am-4:47 pm

1 stop7h 47m

$307

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Wed 8/20

7:00 am-3:19 pm

2 stops11h 19m

Seattle/Tacoma Intl

Wed 8/27

11:54 pm-10:25 am

1 stop7h 31m

$312

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Wed 9/10

8:01 am-2:34 pm

1 stop9h 33m

Seattle/Tacoma Intl

Wed 9/17

11:40 am-10:55 pm

1 stop8h 15m

$321

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Wed 8/20

6:15 am-3:05 pm

2 stops11h 50m

Seattle/Tacoma Intl

Wed 8/27

6:45 am-8:00 pm

2 stops10h 15m

$372

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Wed 9/10

9:42 am-6:29 pm

1 stop11h 47m

Seattle/Tacoma Intl

Wed 9/17

7:00 am-11:43 am

2 stops25h 43m

$405

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Thu 10/16

12:23 pm-5:25 pm

1 stop8h 02m

$145

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Tue 8/19

11:37 am-4:57 pm

1 stop8h 20m

$154

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Tue 8/19

7:00 am-3:19 pm

2 stops11h 19m

$159

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Fri 9/26

6:37 pm-11:54 pm

1 stop8h 17m

$169

JacksonvilleSeattle

JAX - SEA

JAXSEA

Jacksonville

Mon 8/25

8:49 pm-10:20 am

1 stop16h 31m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 12 results
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Best time to book a flight from Jacksonville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Jacksonville 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 Jacksonville to Seattle

How far ahead should I book a flight from Jacksonville to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Jacksonville to Seattle. Price data was last updated on July 25, 2025.

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Jacksonville to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Jacksonville to Seattle?

Currently, January is the cheapest month in which you can book a flight from Jacksonville to Seattle (average of $238). Flying from Jacksonville to Seattle in June is currently the most expensive (average of $389). 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.

What is the cheapest time of day to fly from JAX to SEA?

Find hourly flight availability from Jacksonville to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

It’s optimal to fly from Jacksonville to Seattle in the afternoon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Jacksonville to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Jacksonville to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Jacksonville to Seattle flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from Jacksonville to Seattle?

Share of 1-stop round-trip flights from Jacksonville to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

Dallas (DFW) – chosen by Cheapflights users on 75% of 1-stop itineraries from Jacksonville to Seattle on Cheapflights.

What’s the cheapest layover airport for flights from Jacksonville to Seattle?

Average round-trip fare for 1-stop flights from Jacksonville to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $551.

What’s the fastest layover option from Jacksonville to Seattle?

Shortest average travel time for 1-stop one-way flights from Jacksonville to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Dallas (DFW) have the shortest average one-way travel time for 1-stop routes: 5h 31m.

Which airport typically offers the quickest layover for flights from Jacksonville to Seattle?

Average layover duration for 1-stop one-way flights from Jacksonville to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dallas (DFW) offer the fastest connection on this route, with an average layover time of 1h 12m.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated July 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Jacksonville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,975 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,892 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,914 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Jacksonville to Seattle. 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 Jacksonville to Seattle round-trip?

    According to our current data, Delta ($307), United Airlines ($312), and American Airlines ($321) offers the cheapest pricing from Jacksonville to Seattle. Delta is priced at 34% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is Sun Country Air, with whom users have recently found tickets for as low as $135. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Jacksonville to Seattle for a low price.

  • Where are the most common layover locations when flying from Jacksonville to Seattle?

    The most popular layover on flights from Jacksonville to Seattle is Dallas. Charlotte sees the second most layovers for non-direct flights flying from Jacksonville to Seattle.

  • What are some popular things to do or see while on a layover in Dallas?

    American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion are currently the most popular points of interest in Dallas at the moment. American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion can be accessed by traveling approximately 15.0 mi, 15.5 mi, and 18.3 mi, respectively from Dallas/Fort Worth. Those looking to explore during their layover in Dallas can rent a car from Dallas/Fort Worth for about $51 per day.

  • What are some popular points of interest to see during a layover in Charlotte?

    Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are the most popular attractions in Charlotte if you're in need of something to do during your layover. Travelers on a layover in Charlotte can visit Carowind, Mint Museum Uptown, and NASCAR Hall of Fame, by traveling 8.2 mi, 5.4 mi, and 5.7 mi, respectively after landing at Charlotte Douglas. Travelers can book a car rental at Charlotte Douglas for about $49 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Jacksonville to Seattle flights?

    The least popular layover on flights from Jacksonville to Seattle is Atlanta.

  • Can I find deals for flights from Jacksonville to Seattle that include hotel bookings?

    Yes. In addition to deals on Jacksonville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Jacksonville to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Jacksonville to Seattle.

  • Can I find deals for business class flights from Jacksonville to Seattle?

    Yes. Cheapflights offers flight deals from Jacksonville to Seattle 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 Jacksonville to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Jacksonville to Seattle (average of $238). Flying from Jacksonville to Seattle in June is currently the most expensive (average of $389). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
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Issaquah
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Shoreline
Federal Way
Shelton

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Top 7 airlines flying from Jacksonville to Seattle

Discover the top 7 airlines that operate flights from Jacksonville to Seattle. 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 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$161Average$350FlexibilityNo cancel feeOn-time83%
JetBlueCheapest$255Average$325FlexibilityNo cancel feeOn-time62%
DeltaCheapest$277Average$432FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$309Average$464FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$332Average$500FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$393Average$531FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$456Average$622FlexibilityNo cancel feeOn-time75%

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