$128 Cheap Flights from Jacksonville (JAX) to Seattle (SEA)

View $128 flight on Thu, Sep 4, 2025Opens in a new window

Popular airlines from Jacksonville International Airport (JAX) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Jacksonville to Seattle (JAX-SEA)

Prices were available within the past 7 days and start at $128 for one-way flights and $266 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Oct 24 - Sun, Oct 26
JAX
Jacksonville
SEA
Seattle
$266 Roundtrip, found 2 hours ago
$266
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Jacksonville to Seattle, returning Sun, Oct 26, priced at $266 found 2 hours ago
Frontier Airlines
Fri, Oct 31 - Sun, Nov 2
JAX
Jacksonville
SEA
Seattle
$270 Roundtrip, found 14 hours ago
$270
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Jacksonville to Seattle, returning Sun, Nov 2, priced at $270 found 14 hours ago
Frontier Airlines
Thu, Oct 23 - Tue, Oct 28
JAX
Jacksonville
SEA
Seattle
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Oct 23 from Jacksonville to Seattle, returning Tue, Oct 28, priced at $271 found 1 day ago
American Airlines
Wed, Jan 14 - Wed, Jan 21
JAX
Jacksonville
SEA
Seattle
$277 Roundtrip, found 11 hours ago
$277
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Wed, Jan 14 from Jacksonville to Seattle, returning Wed, Jan 21, priced at $277 found 11 hours ago
Delta
Wed, Jan 14 - Wed, Jan 21
JAX
Jacksonville
SEA
Seattle
$277 Roundtrip, found 11 hours ago
$277
Roundtrip
found 11 hours ago
Select Delta flight, departing Wed, Jan 14 from Jacksonville to Seattle, returning Wed, Jan 21, priced at $277 found 11 hours ago
United
Wed, Jan 14 - Wed, Jan 21
JAX
Jacksonville
SEA
Seattle
$277 Roundtrip, found 11 hours ago
$277
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Jan 14 from Jacksonville to Seattle, returning Wed, Jan 21, priced at $277 found 11 hours ago
United
Wed, Jan 14 - Wed, Jan 21
JAX
Jacksonville
SEA
Seattle
$279 Roundtrip, found 11 hours ago
$279
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Jan 14 from Jacksonville to Seattle, returning Wed, Jan 21, priced at $279 found 11 hours ago
United
Wed, Jan 14 - Wed, Jan 21
JAX
Jacksonville
SEA
Seattle
$282 Roundtrip, found 11 hours ago
$282
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Jan 14 from Jacksonville to Seattle, returning Wed, Jan 21, priced at $282 found 11 hours ago
United
Tue, Sep 30 - Wed, Oct 1
JAX
Jacksonville
SEA
Seattle
$286 Roundtrip, found 1 day ago
$286
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 30 from Jacksonville to Seattle, returning Wed, Oct 1, priced at $286 found 1 day ago
Sun Country Airlines
Fri, Nov 7 - Wed, Nov 12
JAX
Jacksonville
SEA
Seattle
$295 Roundtrip, found 3 days ago
$295
Roundtrip
found 3 days ago
Select Sun Country Airlines flight, departing Fri, Nov 7 from Jacksonville to Seattle, returning Wed, Nov 12, priced at $295 found 3 days ago

Find the cheapest month to fly from Jacksonville (JAX) to Seattle (SEA)

September is typically the cheapest month to fly

From $198 - $545 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $495
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $495
Flights from Jacksonville (JAX) to Seattle (SEA)
Origin airport
Jacksonville Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$266
Distance
2438 mi
Average flight time
8 hours 25 mins

Jacksonville to Seattle Flights

The cheapest times to fly from Jacksonville to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Jacksonville to Seattle are during the month of October. You can find some of the cheapest flights from Jacksonville to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Jacksonville to Seattle

Sunday is one of the best days to book for cheap flights from Jacksonville to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Jacksonville to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Jacksonville to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $128 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Jacksonville to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Jacksonville to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight from $128 or cheap return flight from $266 from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA)?
Traveling in October can help you save, as it's the cheapest month for flights between JAX and SEA. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from JAX to SEA. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA)?
You'll have to hop on a flight with a layover if you're traveling from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from JAX to SEA?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA)?
To land at Seattle - Tacoma Intl. Airport (SEA) on time, book a flight that leaves Jacksonville Intl. Airport (JAX) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from JAX to SEA are typically more expensive. To lock in the best rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, you may find a cheap ticket right before your trip.
Is it cheaper to book a JAX to SEA flight and hotel package?
Compared with arranging flights and hotels separately, booking a JAX to SEA flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Jacksonville Intl. Airport (JAX) to Seattle - Tacoma Intl. Airport (SEA)?
In most cases, you can cancel or reschedule your JAX to SEA flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.