Cheapest airlines flights from Seattle to Jacksonville

Fly from Seattle to Jacksonville with 1 carriers, including Delta Air Lines, Hawaiian Airlines offers the cheapest flights from Seattle to Jacksonville.

Find Seattle to Jacksonville flight deals for the next 3 months. One way flights from US$120, round trip flights from US$318.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Seattle to Jacksonville Flight Information

The distance between Seattle and Jacksonville is approximately 3,934.31 km. The most popular month to fly to Jacksonville is July. The off-season for travel is November.

Cheapest one-way flight priceUS$120
Cheapest return ticket priceUS$318
Cheapest monthNovember
Peak season for travelJuly
Flight distance3,934.31 km
Popular airlineDelta Air Lines

When is the cheapest time to book flights from Seattle to Jacksonville?

Best time for cheap flights from Seattle to Jacksonville are between Nov 30 and Dec 7 with one way fares from US$120

Cheapest flights
From price
Search
  • 1623
  • 2330
  • Dec

    307
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
  • 18
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer flights from Seattle to Jacksonville?

    At the moment, several airlines serve connecting flights from Seattle to Jacksonville, including: Delta Air Lines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Jacksonville is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • The cheapest months to fly from Seattle to Jacksonville is November, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Seattle to Jacksonville on November 24, 2025 with Frontier Airlines, with prices starting at US$106.
  • You can land at any one of the following hubs in Jacksonville, with Seattle–Tacoma International Airport to Jacksonville International Airport (SEA-JAX) is by far the most common option on this route: Jacksonville International Airport (JAX) Naval Air Station Jacksonville (NIP) Cecil Airport (VQQ).
  • The time difference between Jacksonville and Seattle is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.