$220 Cheap Flights from Orange County (SNA) to Sidney (SDY)

View $220 flight on Tue, Nov 3, 2026Opens in a new window

Popular airlines from John Wayne Airport (SNA) to Sidney, MT (SDY-Sidney-Richland Municipal)

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Cheap Flights from Orange County to Sidney (SNA-SDY)

Prices were available within the past 7 days and start at $220 for one-way flights and $438 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$438 Roundtrip, found 2 days ago
$438
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $438 found 2 days ago
Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$443 Roundtrip, found 2 days ago
$443
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $443 found 2 days ago
United
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$443 Roundtrip, found 2 days ago
$443
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $443 found 2 days ago
Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$448 Roundtrip, found 2 days ago
$448
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $448 found 2 days ago
Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$448 Roundtrip, found 2 days ago
$448
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $448 found 2 days ago
United
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$538 Roundtrip, found 2 days ago
$538
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $538 found 2 days ago
United
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$543 Roundtrip, found 2 days ago
$543
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $543 found 2 days ago
United
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$588 Roundtrip, found 2 days ago
$588
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $588 found 2 days ago
United
Wed, Apr 1 - Thu, Apr 2
SNA
Orange County
SDY
Sidney
$608 Roundtrip, found 1 day ago
$608
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 1 from Orange County to Sidney, returning Thu, Apr 2, priced at $608 found 1 day ago
United
Tue, Nov 3 - Tue, Nov 10
SNA
Orange County
SDY
Sidney
$633 Roundtrip, found 2 days ago
$633
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 3 from Orange County to Sidney, returning Tue, Nov 10, priced at $633 found 2 days ago

Frequently asked questions

How much does a flight from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY) cost?
Grab a cheap one-way flight from $220 or cheap return flight from $438 from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY)?
Planning your getaway for November may help you find better deals, as it's the cheapest month for flights between SNA and SDY. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SNA to SDY flight.
How many flights per day from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY)?
Direct flights from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SNA to SDY?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY)?
To reach Sidney-Richland Municipal Airport (SDY) on schedule, book a flight that leaves from John Wayne Airport (SNA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY) last-minute?
Waiting until right before your break to book your flight from SNA to SDY generally means paying more. While you may find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book a SNA to SDY flight and hotel package?
You'll typically save money by booking a SNA to SDY flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your preferred accommodations and flights, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from John Wayne Airport (SNA) to Sidney-Richland Municipal Airport (SDY)?
If you reserved your SNA to SDY flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
John Wayne
Destination airport
Sidney-Richland Municipal
Roundtrip price
$437
Distance
1201 mi

Book with confidence

Orange County to Sidney Flights

The cheapest times to fly from Orange County to Sidney

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

 

The best time to book a flight from Orange County to Sidney

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

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 Orange County to Sidney in 2026. You can also book with separate airlines for your outbound and return journeys, from $220 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 Orange County to Sidney 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 Orange County to Sidney 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.

 

Orange County to Sidney Flights

*Flight schedules are subject to change.

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*Available to One Key members.