Cheap Flights from Santa Rosa (STS) to Dillon (DLN)

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Dillon, MT (DLN)

Frequently asked questions

How much does a flight from Sonoma County Airport (STS) to Dillon, MT (DLN) cost?
Lock in a cheap one-way flight or cheap return flight from Sonoma County Airport (STS) to Dillon, MT (DLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sonoma County Airport (STS) to Dillon, MT (DLN)?
is the least expensive month to fly from STS to DLN. Traveling during an off-peak travel window is often the key to finding better deals on flights.
What is the cheapest airline that flies from Sonoma County Airport (STS) to Dillon, MT (DLN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STS to DLN flight.
How many flights per day from Sonoma County Airport (STS) to Dillon, MT (DLN)?
Direct flights from Sonoma County Airport (STS) to Dillon, MT (DLN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STS to DLN?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sonoma County Airport (STS) to Dillon, MT (DLN)?
Book a flight from Sonoma County Airport (STS) to Dillon, MT (DLN) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Sonoma County Airport (STS) to Dillon, MT (DLN) last-minute?
Booking your flight from STS to DLN right before your getaway is typically more expensive. But if you're flexible with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a STS to DLN flight and hotel package?
You'll typically save money by booking a STS to DLN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your ideal accommodations and flights, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Sonoma County Airport (STS) to Dillon, MT (DLN)?
It's usually possible to cancel or reschedule your STS to DLN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Sonoma County
Destination airport
Dillon
Distance
702 mi

Book with confidence

Santa Rosa to Dillon Flights

The cheapest times to fly from Santa Rosa to Dillon

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

 

The best time to book a flight from Santa Rosa to Dillon

Sunday is one of the best days to book for cheap flights from Santa Rosa to Dillon: 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 Santa Rosa to Dillon

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 Santa Rosa to Dillon in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Santa Rosa to Dillon 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 Santa Rosa to Dillon 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.

 

Santa Rosa to Dillon Flights

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*Available to One Key members.