Title: Cheap Flights from Adelaide (ADL) 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 Adelaide (ADL) 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 Adelaide, SA Airport (ADL) to Sidney, MT (SDY-Sidney-Richland Municipal) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:adl,to:sdy,departure:30/09/2025TANYT&leg2=from:sdy,to:adl,departure:07/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) ![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 ADL to Sidney-Richland Airport? > Pack your bags, because round-trip flights from ADL to Sidney-Richland Municipal Airport (SDY) start from . That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from ADL to Sidney-Richland Airport? > The majority of flights can be cancelled online, but every air carrier has its own set of terms and conditions. If you do need to cancel your flight, check out our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from ADL to Sidney-Richland Municipal Airport (SDY) that have flexible change policies? > Many airlines will allow you to reschedule your flight at no extra charge. All you pay is the cost difference between flights. When looking for Adelaide Airport to Sidney-Richland Airport flights, you'll see a "No change fees" box for you to select. ### How far is the flight from Adelaide Airport to Sidney-Richland Municipal Airport (SDY)? > With around 14,800 kilometres separating Adelaide Airport and SDY, your flight will be a long one. Pack wisely to make your time in the air more comfortable. Little things like warm clothing and a cozy travel pillow can make a massive difference. ### Which airlines fly direct from ADL to SDY? > At the moment, no airlines offer direct flights from Adelaide Airport (ADL) to SDY. You'll have to book a flight with one or more stops. To score the best connections and price, lock in your airfare well in advance. ### Are Adelaide Airport (ADL) to Sidney-Richland Airport flight tickets cheaper when they're purchased at the last minute? > Late planners can occasionally score a bargain, with some super cheap airfares from ADL to SDY arising a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals frequently — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines release prices that far in advance. ## Travel information | Origin airport | Adelaide | | --- | --- | | Destination airport | Sidney-Richland Municipal | | Distance | 14655 km | ## Book with confidence ### Adelaide to Sidney Flights **The easy way to book your flights from Adelaide to Sidney**  With Expedia, it’s simple to find and book flights to Sidney from Adelaide 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 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 Adelaide to Sidney today, tomorrow, or this week.   **Save dollars with cheap flights from Adelaide, ADL to Sidney-Richland Municipal, SDY**  Sort your search results by price to find great deals on your flight from Adelaide to Sidney—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sidney from Adelaide 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 Adelaide**  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. So book your flight to Sidney with Expedia today. ## Explore a world of travel with Expedia - Trending Routes - Trending Flights - Top Flights Destinations - Other Airlines - Expedia's Latest Trends ### Top Routes from Adelaide - [Adelaide to Calgary (ADL - YYC)](https://expedia.ca/lp/flights/adl/yyc/adelaide-to-calgary) - [Adelaide to Auckland (ADL - AKL)](https://expedia.ca/lp/flights/adl/akl/adelaide-to-auckland) - [Adelaide to Cairns (ADL - CNS)](https://expedia.ca/lp/flights/adl/cns/adelaide-to-cairns) - [Adelaide to Delhi (ADL - DEL)](https://expedia.ca/lp/flights/adl/del/adelaide-to-delhi) - [Adelaide to Launceston (ADL - LST)](https://expedia.ca/lp/flights/adl/lst/adelaide-to-launceston) - [Adelaide to Gold Coast (ADL - OOL)](https://expedia.ca/lp/flights/adl/ool/adelaide-to-gold-coast) - [Adelaide to Vancouver (ADL - YVR)](https://expedia.ca/lp/flights/adl/yvr/adelaide-to-vancouver) - [Adelaide to Melbourne (ADL - MEL)](https://expedia.ca/lp/flights/adl/mel/adelaide-to-melbourne) - [Adelaide to Brisbane (ADL - BNE)](https://expedia.ca/lp/flights/adl/bne/adelaide-to-brisbane) - [Adelaide to Ahmedabad (ADL - AMD)](https://expedia.ca/lp/flights/adl/amd/adelaide-to-ahmedabad) - [Adelaide to Edmonton (ADL - YEG)](https://expedia.ca/lp/flights/adl/yeg/adelaide-to-edmonton) - [Adelaide to Toronto (ADL - YYZ)](https://expedia.ca/lp/flights/adl/yyz/adelaide-to-toronto) ### Top Routes to Sidney - [Montreal to Sidney (YUL - SDY)](https://expedia.ca/lp/flights/yul/sdy/montreal-to-sidney) - [Calgary to Sidney (YYC - SDY)](https://expedia.ca/lp/flights/yyc/sdy/calgary-to-sidney) - [Vancouver to Sidney (YVR - SDY)](https://expedia.ca/lp/flights/yvr/sdy/vancouver-to-sidney) - [Toronto to Sidney (YYZ - SDY)](https://expedia.ca/lp/flights/yyz/sdy/toronto-to-sidney) ### Top Routes from Adelaide - [Cathay Pacific Adelaide to Delhi](https://expedia.ca/lp/flight-routes/cathay-pacific-from-adelaide-to-indira-gandhi-intl/cx/adl/del) ### Top Flight Destinations - [Flights to Las Vegas](https://expedia.ca/Cheap-Flights-To-Las-Vegas.d178276.Travel-Guide-Flights) - [Flights to New York](https://expedia.ca/Cheap-Flights-To-New-York.d178293.Travel-Guide-Flights) - [Flights to Orlando](https://expedia.ca/Cheap-Flights-To-Orlando.d178294.Travel-Guide-Flights) - [Flights to Chicago](https://expedia.ca/Cheap-Flights-To-Chicago.d178248.Travel-Guide-Flights) - [Flights to San Diego](https://expedia.ca/Cheap-Flights-To-San-Diego.d3073.Travel-Guide-Flights) - [Flights to San Francisco](https://expedia.ca/Cheap-Flights-To-San-Francisco.d178305.Travel-Guide-Flights) - [Flights to Los Angeles](https://expedia.ca/Cheap-Flights-To-Los-Angeles.d178280.Travel-Guide-Flights) - [Flights to Boston](https://expedia.ca/Cheap-Flights-To-Boston.d178239.Travel-Guide-Flights) - [Flights to Miami](https://expedia.ca/Cheap-Flights-To-Miami.d178286.Travel-Guide-Flights) - [Flights to Houston](https://expedia.ca/Cheap-Flights-To-Houston.d178265.Travel-Guide-Flights) - [Flights to Pigeon Forge](https://expedia.ca/Cheap-Flights-To-Pigeon-Forge.d8264.Travel-Guide-Flights) - [Flights to Nashville](https://expedia.ca/Cheap-Flights-To-Nashville.d178291.Travel-Guide-Flights) - [Flights to Myrtle Beach](https://expedia.ca/Cheap-Flights-To-Myrtle-Beach.d601685.Travel-Guide-Flights) - [Flights to Atlanta](https://expedia.ca/Cheap-Flights-To-Atlanta.d178232.Travel-Guide-Flights) - [Flights to San Antonio](https://expedia.ca/Cheap-Flights-To-San-Antonio.d178303.Travel-Guide-Flights) - [Flights to Denver](https://expedia.ca/Cheap-Flights-To-Denver.d178254.Travel-Guide-Flights) - [Flights to Honolulu](https://expedia.ca/Cheap-Flights-To-Honolulu.d1488.Travel-Guide-Flights) - [Flights to Gatlinburg](https://expedia.ca/Cheap-Flights-To-Gatlinburg.d7474.Travel-Guide-Flights) - [Flights to Panama City Beach](https://expedia.ca/Cheap-Flights-To-Panama-City-Beach.d8021.Travel-Guide-Flights) - [Flights to Atlantic City](https://expedia.ca/Cheap-Flights-To-Atlantic-City.d602179.Travel-Guide-Flights) ### Other Airlines - [Qantas Airways](https://expedia.ca/Qantas-Airways-Flights.cQF.Travel-Guide-Airlines) - [Virgin Australia](https://expedia.ca/Virgin-Australia-Flights.cVA.Travel-Guide-Airlines) - [Air Canada](https://expedia.ca/Air-Canada-Flights.cAC.Travel-Guide-Airlines) - [Cathay Pacific](https://expedia.ca/Cathay-Pacific-Flights.cCX.Travel-Guide-Airlines) - [Qatar Airways](https://expedia.ca/Qatar-Airways-Flights.cQR.Travel-Guide-Airlines) - [Air New Zealand](https://expedia.ca/Air-New-Zealand-Flights.cNZ.Travel-Guide-Airlines) - [United](https://expedia.ca/United-Flights.cUA.Travel-Guide-Airlines) - [American Airlines](https://expedia.ca/American-Airlines-Flights.cAA.Travel-Guide-Airlines) - [Emirates](https://expedia.ca/Emirates-Flights.cEK.Travel-Guide-Airlines) - [Singapore Airlines](https://expedia.ca/Singapore-Airlines-Flights.cSQ.Travel-Guide-Airlines) - [Malaysia Airlines](https://expedia.ca/Malaysia-Airlines-Flights.cMH.Travel-Guide-Airlines) - [Lufthansa](https://expedia.ca/Lufthansa-Flights.cLH.Travel-Guide-Airlines) - [Jetstar](https://expedia.ca/Jetstar-Flights.cJQ.Travel-Guide-Airlines) - [Air India](https://expedia.ca/Air-India-Flights.cAI.Travel-Guide-Airlines) - [British Airways](https://expedia.ca/British-Airways-Flights.cBA.Travel-Guide-Airlines) - [Fiji Airways](https://expedia.ca/Fiji-Airways-Flights.cFJ.Travel-Guide-Airlines) ### Expedia's Latest Trends Flights - [Flights from Kalispell to Salt Lake City](https://expedia.ca/lp/flights/fca/slc/kalispell-to-salt-lake-city) - [Flights from Kalispell to Phoenix](https://expedia.ca/lp/flights/fca/phx/kalispell-to-phoenix) - [Flights from Lethbridge to Kalispell](https://expedia.ca/lp/flights/yql/fca/lethbridge-to-kalispell) - [Flights from Kalispell to Seattle](https://expedia.ca/lp/flights/fca/sea/kalispell-to-seattle) - [Flights from Billings to Calgary](https://expedia.ca/lp/flights/bil/yyc/billings-to-calgary) - [Flights from Toronto to Missoula](https://expedia.ca/lp/flights/yyz/mso/toronto-to-missoula) - [Flights from Vancouver to Kalispell](https://expedia.ca/lp/flights/yvr/fca/vancouver-to-kalispell) - [Flights from Edmonton to Missoula](https://expedia.ca/lp/flights/yeg/mso/edmonton-to-missoula) - [Flights from Calgary to Billings](https://expedia.ca/lp/flights/yyc/bil/calgary-to-billings) - [Flights from Cranbrook to Kalispell](https://expedia.ca/lp/flights/yxc/fca/cranbrook-to-kalispell) - [Flights from Kalispell to San Diego](https://expedia.ca/lp/flights/fca/san/kalispell-to-san-diego) - [Flights from Calgary to Missoula](https://expedia.ca/lp/flights/yyc/mso/calgary-to-missoula) - [Flights from Winnipeg to Billings](https://expedia.ca/lp/flights/ywg/bil/winnipeg-to-billings) - [Flights from Kalispell to Tampa](https://expedia.ca/lp/flights/fca/tpa/kalispell-to-tampa) - [Flights from Kalispell to Las Vegas](https://expedia.ca/lp/flights/fca/las/kalispell-to-las-vegas) - [Flights from Kalispell to Nashville](https://expedia.ca/lp/flights/fca/bna/kalispell-to-nashville) - [Flights from Saskatoon to Billings](https://expedia.ca/lp/flights/yxe/bil/saskatoon-to-billings) - [Flights from Saskatoon to Kalispell](https://expedia.ca/lp/flights/yxe/fca/saskatoon-to-kalispell) - [Flights from Kalispell to Orlando](https://expedia.ca/lp/flights/fca/sfb/kalispell-to-orlando) - [Flights from Kelowna to Billings](https://expedia.ca/lp/flights/ylw/bil/kelowna-to-billings) - [Flights from Toronto to Kalispell](https://expedia.ca/lp/flights/yyz/fca/toronto-to-kalispell) - [Flights from Toronto to Billings](https://expedia.ca/lp/flights/yyz/bil/toronto-to-billings) - [Flights from Vancouver to Billings](https://expedia.ca/lp/flights/yvr/bil/vancouver-to-billings) - [Flights from Edmonton to Kalispell](https://expedia.ca/lp/flights/yeg/fca/edmonton-to-kalispell) - [Flights from Kalispell to Los Angeles](https://expedia.ca/lp/flights/fca/lax/kalispell-to-los-angeles) - [Flights from Edmonton to Billings](https://expedia.ca/lp/flights/yeg/bil/edmonton-to-billings) - [Flights from Kalispell to Calgary](https://expedia.ca/lp/flights/fca/yyc/kalispell-to-calgary) - [Flights from Calgary to Butte](https://expedia.ca/lp/flights/yyc/btm/calgary-to-butte) - [Flights from Vancouver to Missoula](https://expedia.ca/lp/flights/yvr/mso/vancouver-to-missoula) - [Flights from Kalispell to Palm Springs](https://expedia.ca/lp/flights/fca/psp/kalispell-to-palm-springs) \*Available to Expedia members. ![](https://a.travel-assets.com/mad-service/footer/bnaBanners/BEX_Footer.jpg) ## Go further with the Expedia app Save on select hotels and earn double points when you book on the app. Our app deals help you to save on trips so you can travel more and manage it all on the go. Scan the QR code with your device camera and download our app ![QR code to download the app](https://a.travel-assets.com/mad-service/qr-code/footer_qr/4_QR_FOOTER.png)