Title: Cheap Flights to Erwin , SD from CA $657 - Expedia.ca ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights to Erwin , SD from CA $657 [View CA $657 flight on Sat, Mar 21, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:XWA,to:ATY,departure:21/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:656.80&airProductToken=AQprCjMI1YIBEgQ1MzY3GNcFIINpKJ-biAMwoZyIAzhIQABYAWoHRUNPTk9NWXIISEFBNEFERE4KNAjVggESBDUwMzUYg2kg4MQBKPqeiAMw5Z-IAzhMQAFYAWoHRUNPTk9NWXIITEFBNEFBRE4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAB) [Hotels in Erwin](https://expedia.ca/Erwin-Hotels.d553248634983296644.Travel-Guide-Hotels)[Erwin Car Rentals](https://expedia.ca/Car-Rentals-In-Erwin.d553248634983296644.Car-Rental-Guide)[Erwin Vacation Packages](https://expedia.ca/Erwin.d553248634983296644.Destination-Travel-Guides) ## Popular airlines to Erwin - ![](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:CMH,to:Erwin, South Dakota, United States of America,departure:22/03/2026TANYT&leg2=from:Erwin, South Dakota, United States of America,to:CMH,departure:29/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](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:CMH,to:Erwin, South Dakota, United States of America,departure:22/03/2026TANYT&leg2=from:Erwin, South Dakota, United States of America,to:CMH,departure:29/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](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\* - ![](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\* - ![](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) ## How much is the cheapest flight to Erwin? Prices were available within the past 7 days and start at CA $657 for one-way flights and CA $582 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sun, Apr 12 - Tue, Apr 28 XWA Williston ATY Watertown CA $582 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:XWA,to:ATY,departure:12/04/2026TANYT&leg2=from:ATY,to:XWA,departure:28/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:582.00&airProductToken=AQpFCiAIxJgBEgQ0Mjg0GNcFIMx8KNOWigMwypeKAzhVQABYAQohCMSYARIENDI5ORjMfCDgxAEo85eKAzC5mIoDOFVAAVgBCkUKIQjEmAESBDQyOTgY4MQBIMx8KMHGiwMwi8eLAzhVQABYAQogCMSYARIENDI2MRjMfCDXBSiEyIsDMPrIiwM4VUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sun, Apr 26 - Sun, May 10 XWA Williston ATY Watertown CA $682 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:XWA,to:ATY,departure:26/04/2026TANYT&leg2=from:ATY,to:XWA,departure:10/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:681.90&airProductToken=AQpFCiAIxJgBEgQ0Mjg0GNcFIMx8KJO0iwMwhLWLAzhVQABYAQohCMSYARIENDI5ORjMfCDgxAEos7WLAzD6tYsDOFVAAVgBCkUKIQjEmAESBDQyOTgY4MQBIMx8KOLMjAMwqc2MAzhVQABYAQogCMSYARIENDI4ORjMfCDXBSj604wDMO_UjAM4S0ABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sun, Mar 22 - Sun, Apr 5 XWA Williston ATY Watertown CA $685 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:XWA,to:ATY,departure:22/03/2026TANYT&leg2=from:ATY,to:XWA,departure:05/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:684.10&airProductToken=AQpFCiAIxJgBEgQ0Mjg0GNcFIMx8KLOqiAMwqquIAzhLQABYAQohCMSYARIENDI5ORjMfCDgxAEo06uIAzCfrIgDOFVAAVgBCkUKIQjEmAESBDQyOTgY4MQBIMx8KOHDiQMwq8SJAzhVQABYAQogCMSYARIENDI2MRjMfCDXBSiuxYkDMKDGiQM4VUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sun, Mar 15 - Mon, Mar 30 XWA Williston ATY Watertown CA $752 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:XWA,to:ATY,departure:15/03/2026TANYT&leg2=from:ATY,to:XWA,departure:30/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:751.80&airProductToken=AQpFCiAIxJgBEgQ0Mjg0GNcFIMx8KNPbhwMwytyHAzhLQABYAQohCMSYARIENDI5ORjMfCDgxAEo89yHAzC_3YcDOFFAAVgBCkUKIQjEmAESBDQyOTgY4MQBIMx8KKGAiQMw64CJAzhVQABYAQogCMSYARIENDI2MRjMfCDXBSjugYkDMOCCiQM4VUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Mar 24 - Fri, Mar 27 XWA Williston ATY Watertown CA $836 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:XWA,to:ATY,departure:24/03/2026TANYT&leg2=from:ATY,to:XWA,departure:27/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:835.70&airProductToken=AQpFCiAI1YIBEgQ1MzY3GNcFIINpKP-8iAMwgb6IAzhMQABYAQohCNWCARIENTAzNRiDaSDgxAEo2sCIAzDFwYgDOExAAVgBCkUKIQjVggESBDUwMTkY4MQBIINpKJHkiAMwhOWIAzhMQABYAQogCNWCARIENDY3MxiDaSDXBSjI7ogDMMDviAM4VEABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.ca/deals?rfrr=FTG_SPRING_PROMO_) ## Book with confidence Expedia.ca gives you the best tools to secure great deals on flights to Erwin. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Erwin. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Erwin. Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Erwin flights with full confidence knowing that you've found the best deal online. Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Erwin. Looking to save even more? Get additional savings by bundling your Erwin flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Erwin trip! ## Travel information | Destination airport | Watertown Regional | | ----------------------------- | ------------------ | | Destination airport IATA code | ATY | | Destination city name | Watertown | | Roundtrip price | CA $582 | \*Available to Expedia members.