Title: $650 Cheap flights from Sofia to Ermoupolis (SOF to JSY) - Expedia.com ![Adobe](https://images.trvl-media.com/place/6062862/97d8b9dc-632e-456b-a730-862c899ca25c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6062862/97d8b9dc-632e-456b-a730-862c899ca25c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $650 Cheap Flights from Sofia (SOF) to Ermoupolis (JSY) [View $650 flight on Thu, May 28, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:SOF,to:JSY,departure:5/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:649.30&airProductToken=AQqeAQozCMyeARIDNjM2GNIrIJawASjRk44DMMmUjgM4S0AAWAFqCEVDT1NUQU5EcgdLMVNURDE0CjMIzJ4BEgM2MDMYlrABIOA8KKSYjgMwyZmOAzhLQAFYAWoIRUNPU1RBTkRyB0sxU1REMTQKMgjHogESAjIwGOA8IMnEASi9oo4DMOCijgM4T0ABWAFqCEVDT1NUQU5EcgdLMVNURDE0EgoIARABGAEqAkxPGAEiBAgBEAEoAigDKAQwAQ) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers 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 Sofia Airport (SOF) to Ermoupolis (JSY-Syros Island National) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&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_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](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 OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Sofia to Ermoupolis (SOF-JSY) Prices were available within the past 7 days and start at $650 for one-way flights and $281 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 4 - Fri, May 22 SOF Sofia JSY Ermoupoli $281 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/4/2026TANYT&leg2=from:JSY,to:SOF,departure:5/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:280.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoy4eMAzCqiIwDOFVAAFgBCh8Ix6IBEgIyMBjgPCDJxAEojpOMAzCxk4wDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCie1I0DMMHUjQM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyiE1o0DMO3WjQM4VUABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 11 - Fri, May 29 SOF Sofia JSY Ermoupoli $299 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/11/2026TANYT&leg2=from:JSY,to:SOF,departure:5/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:298.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoq9aMAzCK14wDOFVAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo7uGMAzCR4owDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCj-oo4DMKGjjgM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjkpI4DMM2ljgM4VEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 8 - Fri, Mar 27 SOF Sofia JSY Ermoupoli $304 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/8/2026TANYT&leg2=from:JSY,to:SOF,departure:3/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:303.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwo7IuHAzDLjIcDOFNAAFgBCh8Ix6IBEgIyMBjgPCDJxAEor5KHAzDSkocDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCit3ogDMNDeiAM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjA4IgDMKnhiAM4VUABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, Mar 30 - Fri, Apr 17 SOF Sofia JSY Ermoupoli $309 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/30/2026TANYT&leg2=from:JSY,to:SOF,departure:4/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:308.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwo6_2IAzDK_ogDOFRAAFgBCh8Ix6IBEgIyMBjgPCDJxAEoromJAzDRiYkDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCi-yooDMOHKigM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjgzIoDMMnNigM4VEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 11 - Wed, May 27 SOF Sofia JSY Ermoupoli $312 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/11/2026TANYT&leg2=from:JSY,to:SOF,departure:5/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:311.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoq9aMAzCK14wDOFVAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo7uGMAzCR4owDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCiPi44DMLKLjgM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyi_lI4DMKiVjgM4U0ABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 4 - Sun, May 17 SOF Sofia JSY Ermoupoli $319 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/4/2026TANYT&leg2=from:JSY,to:SOF,departure:5/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:318.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoy4eMAzCqiIwDOFVAAFgBCh8Ix6IBEgIyMBjgPCDJxAEojpOMAzCxk4wDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCj-m40DMKGcjQM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjknY0DMM2ejQM4UEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 22 - Fri, Apr 10 SOF Sofia JSY Ermoupoli $322 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/22/2026TANYT&leg2=from:JSY,to:SOF,departure:4/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:321.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4DworKmIAzCLqogDOFNAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo76-IAzCSsIgDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCje-4kDMIH8iQM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjY_YkDMMH-iQM4VEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 11 - Sun, May 24 SOF Sofia JSY Ermoupoli $330 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/11/2026TANYT&leg2=from:JSY,to:SOF,departure:5/24/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:329.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoq9aMAzCK14wDOFVAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo7uGMAzCR4owDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCje6o0DMIHrjQM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjf8o0DMMjzjQM4S0ABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 22 - Tue, Apr 7 SOF Sofia JSY Ermoupoli $335 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/22/2026TANYT&leg2=from:JSY,to:SOF,departure:4/7/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:334.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4DworKmIAzCLqogDOFNAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo76-IAzCSsIgDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCjP2IkDMPLYiQM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyj_4YkDMOjiiQM4U0ABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 18 - Sun, May 31 SOF Sofia JSY Ermoupoli $337 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/18/2026TANYT&leg2=from:JSY,to:SOF,departure:5/31/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:336.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoi6WNAzDqpY0DOFRAAFgBCh8Ix6IBEgIyMBjgPCDJxAEozrCNAzDxsI0DOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCi-uY4DMOG5jgM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyi_wY4DMKjCjgM4UEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 8 - Sun, Mar 29 SOF Sofia JSY Ermoupoli $342 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/8/2026TANYT&leg2=from:JSY,to:SOF,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:341.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwo7IuHAzDLjIcDOFNAAFgBCh8Ix6IBEgIyMBjgPCDJxAEor5KHAzDSkocDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCje9IgDMIH1iAM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjE9ogDMK33iAM4UEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 8 - Wed, Mar 25 SOF Sofia JSY Ermoupoli $361 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/8/2026TANYT&leg2=from:JSY,to:SOF,departure:3/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:360.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwo7IuHAzDLjIcDOFNAAFgBCh8Ix6IBEgIyMBjgPCDJxAEor5KHAzDSkocDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCjrxogDMI7HiAM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyi50IgDMKLRiAM4SkABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, Mar 30 - Sun, Apr 19 SOF Sofia JSY Ermoupoli $393 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/30/2026TANYT&leg2=from:JSY,to:SOF,departure:4/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:392.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwo6_2IAzDK_ogDOFRAAFgBCh8Ix6IBEgIyMBjgPCDJxAEoromJAzDRiYkDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCj-4IoDMKHhigM4RUAAWAEKHwjHogESAzY4MBjgPCDSKyjz4ooDMNzjigM4REABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Mon, May 18 - Fri, Jun 5 SOF Sofia JSY Ermoupoli $401 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:5/18/2026TANYT&leg2=from:JSY,to:SOF,departure:6/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:400.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwoi6WNAzDqpY0DOFRAAFgBCh8Ix6IBEgIyMBjgPCDJxAEozrCNAzDxsI0DOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCiq8I4DMM3wjgM4RUAAWAEKHwjHogESAzY4MBjgPCDSKyjE844DMK30jgM4REABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 22 - Sun, Apr 12 SOF Sofia JSY Ermoupoli $406 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/22/2026TANYT&leg2=from:JSY,to:SOF,departure:4/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:405.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4DworKmIAzCLqogDOFNAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo76-IAzCSsIgDOFdAAVgBCkIKHwjHogESAjIxGMnEASDgPCiekooDMMGSigM4RUAAWAEKHwjHogESAzY4MBjgPCDSKyiElIoDMO2UigM4REABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Mar 1 - Wed, Mar 18 SOF Sofia JSY Ermoupoli $413 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:3/1/2026TANYT&leg2=from:JSY,to:SOF,departure:3/18/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:412.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4DwojL2GAzDrvYYDOERAAFgBCh8Ix6IBEgIyMBjgPCDJxAEoz8OGAzDyw4YDOEVAAVgBCkIKHwjHogESAjIxGMnEASDgPCiL-IcDMK74hwM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyjZgYgDMMKCiAM4UEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Feb 22 - Fri, Mar 13 SOF Sofia JSY Ermoupoli $439 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:2/22/2026TANYT&leg2=from:JSY,to:SOF,departure:3/13/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:438.80&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4DworO6FAzCL74UDOExAAFgBCh8Ix6IBEgIyMBjgPCDJxAEo7_SFAzCS9YUDOEVAAVgBCkIKHwjHogESAjIxGMnEASDgPCjtwIcDMJDBhwM4V0AAWAEKHwjHogESAzY4MBjgPCDSKyiAw4cDMOnDhwM4VEABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ![SKY express](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/GQ.gif) Sun, Jun 14 - Fri, Jun 26 SOF Sofia JSY Ermoupoli $451 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SOF,to:JSY,departure:6/14/2026TANYT&leg2=from:JSY,to:SOF,departure:6/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:450.50&airProductToken=AQpCCh8Ix6IBEgM2ODEY0isg4Dwo8NmPAzDP2o8DOFVAAFgBCh8Ix6IBEgIyMBjgPCDJxAEopOCPAzDH4I8DOE1AAVgBCkIKHwjHogESAjIxGMnEASDgPCjK3JADMO3ckAM4TUAAWAEKHwjHogESAzY4MBjgPCDSKyjk35ADMM3gkAM4VUABWAESCggBEAEYASoCR1EYASIECAEQASgEMAE) ## Alternative airports near Ermoupoli Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:3/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) JSY Syros Island National CheapestClosest 2 min [Flights from $837 ](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:JSY,departure:2/19/2026TANYT&leg2=from:JSY,to:SOF,departure:3/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) __Flights from Sofia (SOF) to Ermoupolis (JSY)__ | Origin airport | Sofia | | ------------------- | --------------------- | | Destination airport | Syros Island National | | Roundtrip price | $280 | | Distance | 372 mi | ## Sofia to Ermoupolis Flights The cheapest times to fly from Sofia to Ermoupolis 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 Sofia to Ermoupolis are during the month of May. You can find some of the cheapest flights from Sofia to Ermoupolis with Expedia's search tool and vast selection of airlines. The best time to book a flight from Sofia to Ermoupolis Sunday is one of the best days to book for cheap flights from Sofia to Ermoupolis: 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 Sofia to Ermoupolis 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 Sofia to Ermoupolis in 2026\. You can also book with separate airlines for your outbound and return journeys, from $650 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 Sofia to Ermoupolis 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 Sofia to Ermoupolis 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 Sofia (SOF) to Ermoupolis (JSY-Syros Island National) cost? ### What is the cheapest month to fly from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### Which airlines fly direct from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### What is the cheapest airline that flies from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### How do I find cheap flights from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### What is the best time to fly from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### What is the earliest flight from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### How long does it take to fly from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### Can you fly business or first class from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? ### How do I earn miles on a Sofia (SOF) to Ermoupolis (JSY-Syros Island National) flight with Expedia? ### Is it cheaper to buy a plane ticket from Sofia (SOF) to Ermoupolis (JSY-Syros Island National) at the last minute? ### Is it cheaper to book a Sofia (SOF) to Ermoupolis (JSY-Syros Island National) flight and hotel package? ### Can I cancel or change the date of my flight from Sofia (SOF) to Ermoupolis (JSY-Syros Island National)? \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - 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