$314 Cheap Flights from Sidney (SDY) to Jacksonville (JAX)

View $314 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Sidney, MT (SDY-Sidney-Richland Municipal) to Jacksonville International Airport (JAX)

Cheap Flights from Sidney to Jacksonville (SDY-JAX)

Prices were available within the past 7 days and start at $314 for one-way flights and $511 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Wed, Nov 26 - Fri, Dec 5
SDY
Sidney
JAX
Jacksonville
$511 Roundtrip, found 4 days ago
$511
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Nov 26 from Sidney to Jacksonville, returning Fri, Dec 5, priced at $511 found 4 days ago
Cape Air
Wed, Nov 26 - Thu, Dec 4
SDY
Sidney
JAX
Jacksonville
$536 Roundtrip, found 4 days ago
$536
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Nov 26 from Sidney to Jacksonville, returning Thu, Dec 4, priced at $536 found 4 days ago
Cape Air
Mon, Nov 24 - Fri, Dec 5
SDY
Sidney
JAX
Jacksonville
$614 Roundtrip, found 4 days ago
$614
Roundtrip
found 4 days ago
Select Cape Air flight, departing Mon, Nov 24 from Sidney to Jacksonville, returning Fri, Dec 5, priced at $614 found 4 days ago
Cape Air
Mon, Nov 24 - Thu, Dec 4
SDY
Sidney
JAX
Jacksonville
$639 Roundtrip, found 4 days ago
$639
Roundtrip
found 4 days ago
Select Cape Air flight, departing Mon, Nov 24 from Sidney to Jacksonville, returning Thu, Dec 4, priced at $639 found 4 days ago
Cape Air
Wed, Nov 26 - Wed, Dec 3
SDY
Sidney
JAX
Jacksonville
$669 Roundtrip, found 4 days ago
$669
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Nov 26 from Sidney to Jacksonville, returning Wed, Dec 3, priced at $669 found 4 days ago
Cape Air
Wed, Nov 26 - Tue, Dec 2
SDY
Sidney
JAX
Jacksonville
$715 Roundtrip, found 4 days ago
$715
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Nov 26 from Sidney to Jacksonville, returning Tue, Dec 2, priced at $715 found 4 days ago
Cape Air
Wed, Nov 26 - Sun, Dec 7
SDY
Sidney
JAX
Jacksonville
$717 Roundtrip, found 4 days ago
$717
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Nov 26 from Sidney to Jacksonville, returning Sun, Dec 7, priced at $717 found 4 days ago
Cape Air
Thu, Nov 27 - Fri, Nov 28
SDY
Sidney
JAX
Jacksonville
$1,040 Roundtrip, found 2 days ago
$1,040
Roundtrip
found 2 days ago
Select Cape Air flight, departing Thu, Nov 27 from Sidney to Jacksonville, returning Fri, Nov 28, priced at $1,040 found 2 days ago
Flights from Sidney (SDY) to Jacksonville (JAX)
Origin airport
Sidney-Richland Municipal
Destination airport
Jacksonville Intl.
Roundtrip price
$510
Distance
1682 mi

Sidney to Jacksonville Flights

The cheapest times to fly from Sidney to Jacksonville

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 Sidney to Jacksonville are during the month of November. You can find some of the cheapest flights from Sidney to Jacksonville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sidney to Jacksonville

Sunday is one of the best days to book for cheap flights from Sidney to Jacksonville: 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 Sidney to Jacksonville

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 Sidney to Jacksonville in 2025. You can also book with separate airlines for your outbound and return journeys, from $314 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 Sidney to Jacksonville 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 Sidney to Jacksonville 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 Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX) cost?
Lock in a cheap one-way flight from $314 or cheap return flight from $511 from Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX) 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 Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX)?
The cheapest month to fly from SDY to JAX is November, when there's less demand. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from SDY to JAX. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX)?
You'll have to catch a flight with a layover when traveling from Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SDY to JAX?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX)?
To avoid possible delays on the Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX) last-minute?
Last-minute bookings from SDY to JAX are usually more expensive. To lock in the best rates, start searching for flights as soon as possible. That being said, if you can play around with your travel dates, it's possible to score a cheap ticket right before your journey.
Is it cheaper to book a SDY to JAX flight and hotel package?
You'll generally save money by securing a SDY to JAX flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your ideal accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Sidney-Richland Municipal Airport (SDY) to Jacksonville Intl. Airport (JAX)?
You can usually reschedule or cancel your SDY to JAX flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.