--- title: "Augusta to Sidney cheap flights (AGS to SDY) - Expedia" description: "Cheap Flights from Augusta (AGS) to Sidney (SDY) start at for one-way and for round trip. Earn your airline miles on top of our rewards!" canonical: "https://www.expedia.com/lp/flights/ags/sdy/augusta-to-sidney" language: en-US market: US currency: USD prices_as_of: 2026-11-14T02:05:27Z --- # Cheap Flights from Augusta (AGS) to Sidney (SDY) ![A wheat field with a grain elevator and silo under a cloudy sky.](https://images.trvl-media.com/place/3119/a06eb185-b670-43b5-a222-b9723a9fdab0.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ## Popular airlines from Augusta Regional Airport (AGS) to Sidney, MT (SDY-Sidney-Richland Municipal) [American Airlines](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) [United](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) [Southwest Airlines](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) Southwest A · irlines [Delta](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) [Frontier Airlines](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) [JetBlue Airways](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) [Alaska Airlines](https://www.expedia.com/Flights-Search?leg1=from:AGS,to:SDY,departure:11/28/2026TANYT&leg2=from:SDY,to:AGS,departure:12/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) ## Book with confidence ### Augusta to Sidney Flights #### The cheapest times to fly from Augusta 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 Augusta to Sidney are during the month of . You can find some of the cheapest flights from Augusta to Sidney with Expedia's search tool and vast selection of airlines. #### The best time to book a flight from Augusta to Sidney Sunday is one of the best days to book for cheap flights from Augusta 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 Augusta 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 Augusta to Sidney in 2026\. 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 Augusta 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](https://www.expedia.com/package-deals). Bundling together your Augusta 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.* ## Frequently Asked Questions ### How much does a flight from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) cost? You can find cheap one-way flights and cheap return flights AGS to SDY with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when AGS to SDY ticket fares go up or down. ### What is the cheapest month to fly from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? The cheapest month to fly from AGS to SDY is when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route. ### Which airlines fly direct from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? Enter AGS to SDY and your travel dates, then apply the 'Nonstop' filter to see only direct flights. ### How do I find cheap flights from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? To find a cheap flight from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up [Price Tracking](https://www.expedia.com/why/price-tracking) and receive alerts when fares go up or down. ### What is the best time to fly from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience. ### What is the earliest flight from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from AGS to SDY. To compare more early flights, use the "Early Morning" and "Morning" filters in your search. ### Can you fly business or first class from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? Select the "Business class" and "First class" filters when looking for AGS to SDY flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip. ### How do I earn miles on a Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) flight with Expedia? It's easy to earn miles on a Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of [One Key™](https://www.expedia.com/welcome-one-key), you can also earn OneKeyCash™\* on top of your airline miles when you book with Expedia. \*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands. ### Is it cheaper to buy a plane ticket from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) at the last minute? Typically, booking a last minute flight from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare. ### Is it cheaper to book a Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) flight and hotel package? Securing a Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars. ### Can I cancel or change the date of my flight from Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal)? If you booked your Augusta, GA (AGS-Augusta Regional) to Sidney, MT (SDY-Sidney-Richland Municipal) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in [your itinerary](https://www.expedia.com/trips) or confirmation email. Or, head to our [Customer Service portal](https://www.expedia.com/helpcenter/) if you'd like more information. ## Travel information | Origin airport | Augusta Regional Airport | | ------------------- | ------------------------ | | Destination airport | Sidney, MT | | Distance | 1,520 miles away | ## Explore a world of travel with Expedia - [Flights](?equalTargetTab=tab-0) - [Flights from Washington (IAD) to Sidney (SDY)](https://www.expedia.com/lp/flights/iad/sdy/washington-to-sidney) - [Flights from Sioux Falls (FSD) to Sidney (SDY)](https://www.expedia.com/lp/flights/fsd/sdy/sioux-falls-to-sidney) - [Flights from Philadelphia (PHL) to Sidney (SDY)](https://www.expedia.com/lp/flights/phl/sdy/philadelphia-to-sidney) - [Flights from Los Angeles (LAX) to Sidney (SDY)](https://www.expedia.com/lp/flights/lax/sdy/los-angeles-to-sidney) - [Flights from Ovalau (LEV) to Sidney (SDY)](https://www.expedia.com/lp/flights/lev/sdy/ovalau-to-sidney) - [Flights from Fort Collins (FNL) to Sidney (SDY)](https://www.expedia.com/lp/flights/fnl/sdy/fort-collins-to-sidney) - 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[Flights from New York (NYC) to Sidney (SDY)](https://www.expedia.com/lp/flights/nyc/sdy/new-york-to-sidney) - [Flights from Casper (CPR) to Sidney (SDY)](https://www.expedia.com/lp/flights/cpr/sdy/casper-to-sidney) - [Flights from Albuquerque (ABQ) to Sidney (SDY)](https://www.expedia.com/lp/flights/abq/sdy/albuquerque-to-sidney) - [Flights from Bozeman (BZN) to Sidney (SDY)](https://www.expedia.com/lp/flights/bzn/sdy/bozeman-to-sidney) - [Flights from San Diego (SAN) to Sidney (SDY)](https://www.expedia.com/lp/flights/san/sdy/san-diego-to-sidney) - [Flights from Grand Rapids (GRR) to Sidney (SDY)](https://www.expedia.com/lp/flights/grr/sdy/grand-rapids-to-sidney) - [Flights from Hartford (BDL) to Sidney (SDY)](https://www.expedia.com/lp/flights/bdl/sdy/hartford-to-sidney) - [Flights from Pensacola (PNS) to Sidney (SDY)](https://www.expedia.com/lp/flights/pns/sdy/pensacola-to-sidney) - [Flights from Great Falls (GTF) to Sidney (SDY)](https://www.expedia.com/lp/flights/gtf/sdy/great-falls-to-sidney) - [Flights from Orlando (MCO) to Sidney (SDY)](https://www.expedia.com/lp/flights/mco/sdy/orlando-to-sidney) - [Flights from Fayetteville (XNA) to Sidney (SDY)](https://www.expedia.com/lp/flights/xna/sdy/fayetteville-to-sidney) - [Flights from Rapid City (RAP) to Sidney (SDY)](https://www.expedia.com/lp/flights/rap/sdy/rapid-city-to-sidney) - [Flights from Tampa (TPA) to Sidney (SDY)](https://www.expedia.com/lp/flights/tpa/sdy/tampa-to-sidney) - [Flights from Seattle (SEA) to Sidney (SDY)](https://www.expedia.com/lp/flights/sea/sdy/seattle-to-sidney) - [Flights from Oklahoma City (OKC) to Sidney (SDY)](https://www.expedia.com/lp/flights/okc/sdy/oklahoma-city-to-sidney) - [Flights from Dallas (DFW) to Sidney (SDY)](https://www.expedia.com/lp/flights/dfw/sdy/dallas-to-sidney) - [Flights from Houston (HOU) to Sidney (SDY)](https://www.expedia.com/lp/flights/hou/sdy/houston-to-sidney) - [Flights from Idaho Falls (IDA) to Sidney (SDY)](https://www.expedia.com/lp/flights/ida/sdy/idaho-falls-to-sidney) - [Flights from Welkom (WEL) to Sidney (SDY)](https://www.expedia.com/lp/flights/wel/sdy/welkom-to-sidney) - [Flights from Minneapolis (MSP) to Sidney (SDY)](https://www.expedia.com/lp/flights/msp/sdy/minneapolis-to-sidney) - [Flights from New York (JFK) to Sidney (SDY)](https://www.expedia.com/lp/flights/jfk/sdy/new-york-to-sidney) - [Flights from Cleveland (CLE) to Sidney (SDY)](https://www.expedia.com/lp/flights/cle/sdy/cleveland-to-sidney) - [Flights from Wichita (ICT) to Sidney (SDY)](https://www.expedia.com/lp/flights/ict/sdy/wichita-to-sidney) - [Flights from Santiago (SCL) to Sidney (SDY)](https://www.expedia.com/lp/flights/scl/sdy/santiago-to-sidney) - [Flights from Rock Springs (RKS) to Sidney (SDY)](https://www.expedia.com/lp/flights/rks/sdy/rock-springs-to-sidney) - [Flights from Detroit (DTW) to Sidney (SDY)](https://www.expedia.com/lp/flights/dtw/sdy/detroit-to-sidney) - [Flights from Missoula (MSO) to Sidney (SDY)](https://www.expedia.com/lp/flights/mso/sdy/missoula-to-sidney) - [Flights from Medford (MFR) to Sidney (SDY)](https://www.expedia.com/lp/flights/mfr/sdy/medford-to-sidney) - [Flights from Bemidji (BJI) to Sidney (SDY)](https://www.expedia.com/lp/flights/bji/sdy/bemidji-to-sidney) - [Flights from New Orleans (MSY) to Sidney (SDY)](https://www.expedia.com/lp/flights/msy/sdy/new-orleans-to-sidney) - [Flights from Miami (MIA) to Sidney (SDY)](https://www.expedia.com/lp/flights/mia/sdy/miami-to-sidney) - [Flights from Las Vegas (LAS) to Sidney (SDY)](https://www.expedia.com/lp/flights/las/sdy/las-vegas-to-sidney) - [Flights from Pittsburgh (PIT) to Sidney (SDY)](https://www.expedia.com/lp/flights/pit/sdy/pittsburgh-to-sidney) - [Flights from Redmond (RDM) to Sidney (SDY)](https://www.expedia.com/lp/flights/rdm/sdy/redmond-to-sidney) - [Flights from Syracuse (SYR) to Sidney (SDY)](https://www.expedia.com/lp/flights/syr/sdy/syracuse-to-sidney) - [Flights from Paris (CDG) to Sidney (SDY)](https://www.expedia.com/lp/flights/cdg/sdy/paris-to-sidney) - [Flights from Eugene (EUG) to Sidney (SDY)](https://www.expedia.com/lp/flights/eug/sdy/eugene-to-sidney) - [Flights from Fresno (FAT) to Sidney (SDY)](https://www.expedia.com/lp/flights/fat/sdy/fresno-to-sidney) - [Flights from Twin Falls (TWF) to Sidney (SDY)](https://www.expedia.com/lp/flights/twf/sdy/twin-falls-to-sidney) - [Flights from San Antonio (SAT) to Sidney (SDY)](https://www.expedia.com/lp/flights/sat/sdy/san-antonio-to-sidney) - [Flights from Raleigh (RDU) to Sidney (SDY)](https://www.expedia.com/lp/flights/rdu/sdy/raleigh-to-sidney) - [Flights from Helena (HLN) to Sidney (SDY)](https://www.expedia.com/lp/flights/hln/sdy/helena-to-sidney) - [Flights from Cincinnati (CVG) to Sidney (SDY)](https://www.expedia.com/lp/flights/cvg/sdy/cincinnati-to-sidney) - [Flights from Bellingham (BLI) to Sidney (SDY)](https://www.expedia.com/lp/flights/bli/sdy/bellingham-to-sidney) - [Flights from Salt Lake City (SLC) to Sidney (SDY)](https://www.expedia.com/lp/flights/slc/sdy/salt-lake-city-to-sidney) - [Flights from Sydney (SYD) to Sidney (SDY)](https://www.expedia.com/lp/flights/syd/sdy/sydney-to-sidney) - [Flights from Glendive (GDV) to Sidney (SDY)](https://www.expedia.com/lp/flights/gdv/sdy/glendive-to-sidney) - [Flights from Lake Minchumina (LMA) to Sidney (SDY)](https://www.expedia.com/lp/flights/lma/sdy/lake-minchumina-to-sidney) - [Flights from Bismarck (BIS) to Sidney (SDY)](https://www.expedia.com/lp/flights/bis/sdy/bismarck-to-sidney) - [Flights from Houston (IAH) to Sidney (SDY)](https://www.expedia.com/lp/flights/iah/sdy/houston-to-sidney) - [Flights from Spokane (GEG) to Sidney (SDY)](https://www.expedia.com/lp/flights/geg/sdy/spokane-to-sidney) - [Flights from Portland (PDX) to Sidney (SDY)](https://www.expedia.com/lp/flights/pdx/sdy/portland-to-sidney) - [Flights from Harlingen (HRL) to Sidney (SDY)](https://www.expedia.com/lp/flights/hrl/sdy/harlingen-to-sidney) - [Flights from Greenville (GSP) to Sidney (SDY)](https://www.expedia.com/lp/flights/gsp/sdy/greenville-to-sidney) - [Flights from Fargo (FAR) to Sidney (SDY)](https://www.expedia.com/lp/flights/far/sdy/fargo-to-sidney) - [Flights from Phoenix (PHX) to Sidney (SDY)](https://www.expedia.com/lp/flights/phx/sdy/phoenix-to-sidney) - [Flights from Tulsa (TUL) to Sidney (SDY)](https://www.expedia.com/lp/flights/tul/sdy/tulsa-to-sidney) - [Flights from Baltimore (BWI) to Sidney (SDY)](https://www.expedia.com/lp/flights/bwi/sdy/baltimore-to-sidney) - [Flights from Charlotte (CLT) to Sidney (SDY)](https://www.expedia.com/lp/flights/clt/sdy/charlotte-to-sidney) - [Flights from Fort Lauderdale (FLL) to Sidney (SDY)](https://www.expedia.com/lp/flights/fll/sdy/fort-lauderdale-to-sidney) - [Flights from Jacksonville (JAX) to Sidney (SDY)](https://www.expedia.com/lp/flights/jax/sdy/jacksonville-to-sidney) - [Flights from Boise (BOI) to Sidney (SDY)](https://www.expedia.com/lp/flights/boi/sdy/boise-to-sidney) - [Flights from Knoxville (TYS) to Sidney (SDY)](https://www.expedia.com/lp/flights/tys/sdy/knoxville-to-sidney) - [Flights from Newark Liberty Intl. Airport (EWR) to Sidney (SDY)](https://www.expedia.com/lp/flights/ewr/sdy/newark-liberty-intl-airport-to-sidney) - [Flights from Vancouver (YVR) to Sidney (SDY)](https://www.expedia.com/lp/flights/yvr/sdy/vancouver-to-sidney) - [Flights from Atlanta (ATL) to Sidney (SDY)](https://www.expedia.com/lp/flights/atl/sdy/atlanta-to-sidney) - [Flights from Toledo (TOL) to Sidney (SDY)](https://www.expedia.com/lp/flights/tol/sdy/toledo-to-sidney) - [Flights from Milwaukee (MKE) to Sidney (SDY)](https://www.expedia.com/lp/flights/mke/sdy/milwaukee-to-sidney) - [Flights from Kansas City (MCI) to Sidney (SDY)](https://www.expedia.com/lp/flights/mci/sdy/kansas-city-to-sidney) - [Flights from Billings (BIL) to Sidney (SDY)](https://www.expedia.com/lp/flights/bil/sdy/billings-to-sidney) - [Flights from Richmond (RIC) to Sidney (SDY)](https://www.expedia.com/lp/flights/ric/sdy/richmond-to-sidney) - [Flights from Glasgow (GGW) to Sidney (SDY)](https://www.expedia.com/lp/flights/ggw/sdy/glasgow-to-sidney) - [Flights from Springfield (SGF) to Sidney (SDY)](https://www.expedia.com/lp/flights/sgf/sdy/springfield-to-sidney) - [Flights from Denver (DEN) to Sidney (SDY)](https://www.expedia.com/lp/flights/den/sdy/denver-to-sidney) \*Available to One Key members. ## Other language versions ```yaml hreflang: x-default: https://www.expedia.com/lp/flights/ags/sdy/augusta-to-sidney zh-CN: https://www.expedia.com/cn/lp/flights/ags/sdy/augusta-to-sidney es: https://www.expedia.com/es/lp/vuelos/ags/sdy/augusta-a-sidney en-TH: https://www.expedia.co.th/en/lp/flights/ags/sdy/augusta-to-sidney en-US: https://www.expedia.com/lp/flights/ags/sdy/augusta-to-sidney ar: https://www.expedia.sa/lp/flights/ags/sdy/augusta-to-sidney ```