Title: Cheap Flights from Billings (BIL) to Sidney (SDY) - Expedia.ca ![Adobe](https://images.trvl-media.com/place/3119/a06eb185-b670-43b5-a222-b9723a9fdab0.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3119/a06eb185-b670-43b5-a222-b9723a9fdab0.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Billings (BIL) to Sidney (SDY) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Billings Logan Intl. Airport (BIL) to Sidney, MT (SDY-Sidney-Richland Municipal) - ![Cape Air](https://a.travel-assets.com/air/airlines/9k_sq.svg) Cape Air [](https://www.expedia.ca/Flights-Search?leg1=from:bil,to:sdy,departure:18/10/2025TANYT&leg2=from:sdy,to:bil,departure:25/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"9K"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Frequently asked questions ### How much is a flight from BIL to Sidney-Richland Airport? > The lowest price advertised for a round-trip journey between BIL and SDY is . But you better act quick. This price is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Billings Logan International Airport to Sidney-Richland Municipal Airport (SDY)? > Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from BIL to Sidney-Richland Municipal Airport (SDY) that have flexible change policies? > Flights from Billings Logan International Airport to Sidney-Richland Airport with flexible change policies are available with many airlines. Simply use our "No change fees" filter during your search. You'll only need to cover the cost difference between the two flights, with no added fees to worry about. ### How many hours is the flight from Billings Logan International Airport to Sidney-Richland Airport? > It only takes around 1 hour and 46 minutes to fly from BIL to Sidney-Richland Airport — just enough time for a nap. You'll be starting your descent into Sidney by the time you open your eyes. ### How far is the flight from Billings Logan International Airport to SDY? > A flight distance of just 390 kilometres separates Billings and Sidney. Once you're up in the skies, you won't get a chance to do much more than flip through the pages of the in-flight magazine. ### Which airlines fly direct from BIL to Sidney-Richland Airport? > A popular option with many frequent travellers, Cape Air (9K) operates 152 flights every month from Logan Intl. Airport (BIL) to Sidney-Richland Airport. Pick the one that fits with your travel plans and book your ticket today. ### Are Logan Intl. Airport (BIL) to Sidney-Richland Airport flight tickets cheaper when they're purchased at the last minute? > Last-minute bookings from Logan Intl. Airport (BIL) to Sidney-Richland Municipal Airport (SDY) can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out altogether! If you'd prefer to play it safe and start planning your trip ahead of time, Expedia compares flight deals up to a year in advance. Just remember that not all airlines list their prices so far in advance. Our advice? Check back often as updates are made regularly. ## Travel information | Origin airport | Logan Intl. | | --- | --- | | Destination airport | Sidney-Richland Municipal | | Distance | 391 km | | Average flight time | 1 hour 42 mins | ## Book with confidence ### Billings to Sidney Flights **The easy way to book your flights from Billings to Sidney**  With Expedia, it’s simple to find and book flights to Sidney from Billings whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are Cape Air nonstop flights to Sidney-Richland Municipal, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Billings to Sidney today, tomorrow, or this week.   **Save dollars with cheap flights from Logan Intl., BIL to Sidney-Richland Municipal, SDY**  Sort your search results by price to find great deals on your flight from Billings to Sidney—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sidney from Billings currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Sidney   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Sidney from Billings**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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