Title: $878 Cheap flights from Seoul to Appleton (ICN to ATW) - Expedia.com ![Appleton Wisconsin Fox river view](https://images.trvl-media.com/place/6059808/80cf832b-bfb5-49c6-a018-6e1ceaced794.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6059808/80cf832b-bfb5-49c6-a018-6e1ceaced794.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $878 Cheap Flights from Seoul (ICN) to Appleton (ATW) [View $878 flight on Mon, Sep 28, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:ICN,to:ATW,departure:9/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:877.13&airProductToken=AQqoAQo-CMqYARIENTIwNhjIaCCtnAEo3_6YAzD1_5gDOFNAAFgBagZFQ09TVkZyCFNMWDAwWVo5egkIy4oBEgM3MDUKMQjKmAESAjU2GK2cASCuHCjthZkDMKSLmQM4U0ABWAFqBkVDT1NWRnIIU0xYMDBZWjkKMwjBggESBDMzNDEYrhwg4LQBKNSPmQMwjpCZAzhTQAFYAWoGRUNPU1ZGcghTTFgwMFlaORIKCAEQARgBKgJKTBgBIgQIARABKAIoBCgGMAE) - [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 Incheon Intl. Airport (ICN) to Appleton, WI (ATW-Appleton Intl.) - ![](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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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:ICN,to:ATW,departure:3/10/2026TANYT&leg2=from:ATW,to:ICN,departure:3/17/2026TANYT&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 Seoul to Appleton (ICN-ATW) Prices were available within the past 7 days and start at $878 for one-way flights and $1,682 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,682 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1681.13&airProductToken=AQqiAQozCNWCARIDODA2GMhoILJxKJbzkgMwqviSAzhTQABYAWoIRUNPQkFTSUNyCFNISzQ3U0JJCjQI1YIBEgQyNDgwGLJxIK4cKKn8kgMwu_6SAzhTQAFYAWoIRUNPQkFTSUNyCFNISzQ3U0JJCjUI1YIBEgQ0NDk1GK4cIOC0ASiF_5IDMNv_kgM4U0ABWAFqCEVDT0JBU0lDcghTSEs0N1NCSQqiAQo1CNWCARIENDQ2MBjgtAEgrhwoi_SUAzDa9JQDOFNAAFgBaghFQ09CQVNJQ3IIU0hLNDdTQkkKNAjVggESBDIxMDYYrhwgsnEo__WUAzCm-JQDOFNAAVgBaghFQ09CQVNJQ3IIU0hLNDdTQkkKMwjVggESAzg5MxiycSDIaCiE_ZQDMOiClQM4U0ABWAFqCEVDT0JBU0lDcghTSEs0N1NCSRIKCAEQARgBKgJVQRgBIgQIARABKAIoBCgGMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,707 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1706.19&airProductToken=AQqiAQozCNWCARIDODA2GMhoILJxKJbzkgMwqviSAzhTQABYAWoIRUNPQkFTSUNyCFNISzQ3U0JJCjQI1YIBEgQyNDgwGLJxIK4cKKn8kgMwu_6SAzhTQAFYAWoIRUNPQkFTSUNyCFNISzQ3U0JJCjUI1YIBEgQ0NDk1GK4cIOC0ASiF_5IDMNv_kgM4U0ABWAFqCEVDT0JBU0lDcghTSEs0N1NCSQqiAQo1CNWCARIENTY5MRjgtAEgrhwon_OUAzDt85QDOFNAAFgBaghFQ09CQVNJQ3IIU0hLNDdTQkkKNAjVggESBDIxNzkYrhwgsnEovfSUAzDm9pQDOFNAAVgBaghFQ09CQVNJQ3IIU0hLNDdTQkkKMwjVggESAzg5MxiycSDIaCiE_ZQDMOiClQM4U0ABWAFqCEVDT0JBU0lDcghTSEs0N1NCSRIKCAEQARgBKgJVQRgBIgQIARABKAIoBCgGMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,739 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1738.13&airProductToken=AQqlAQo0CNWCARIDODkyGMhoILJxKNb1kgMw9PqSAzhTQABYAWoJNl9lY29mbGV4cghTSEs0N1NCSQo1CNWCARIEMjQ4MBiycSCuHCip_JIDMLv-kgM4U0AAWAFqCTZfZWNvZmxleHIIU0hLNDdTQkkKNgjVggESBDQ0OTUYrhwg4LQBKIX_kgMw2_-SAzhTQABYAWoJNl9lY29mbGV4cghTSEs0N1NCSQqlAQo2CNWCARIENTY5MRjgtAEgrhwon_OUAzDt85QDOFNAAFgBagk2X2Vjb2ZsZXhyCFNISzQ3U0JJCjUI1YIBEgQyMTc5GK4cILJxKL30lAMw5vaUAzhTQABYAWoJNl9lY29mbGV4cghTSEs0N1NCSQo0CNWCARIDODA1GLJxIMhoKP_3lAMw6P2UAzhTQABYAWoJNl9lY29mbGV4cghTSEs0N1NCSRIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAs) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,752 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1751.13&airProductToken=AQqoAQo1CNWCARIDODA2GMhoILJxKJbzkgMwqviSAzhTQABYAWoKRUNPUEFSVFJFRnIIU0hLNDdTRDIKNgjVggESBDI0ODAYsnEgrhwoqfySAzC7_pIDOFNAAVgBagpFQ09QQVJUUkVGcghTSEs0N1NEMgo3CNWCARIENDQ5NRiuHCDgtAEohf-SAzDb_5IDOFNAAVgBagpFQ09QQVJUUkVGcghTSEs0N1NEMgqoAQo3CNWCARIENDQ2MBjgtAEgrhwoi_SUAzDa9JQDOFNAAFgBagpFQ09QQVJUUkVGcghTSEs0N1NEMgo2CNWCARIEMjEwNhiuHCCycSj_9ZQDMKb4lAM4U0ABWAFqCkVDT1BBUlRSRUZyCFNISzQ3U0QyCjUI1YIBEgM4OTMYsnEgyGgohP2UAzDogpUDOFNAAVgBagpFQ09QQVJUUkVGcghTSEs0N1NEMhIKCAEQARgBKgJVQRgBIgQIARABKAIoBCgGMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,777 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1776.19&airProductToken=AQqiAQozCNWCARIDODA2GMhoILJxKJbzkgMwqviSAzhXQABYAWoIRUNPQkFTSUNyCFdIS1UwU0JJCjQI1YIBEgQxNTY4GLJxIK4cKJP5kgMwp_uSAzhXQAFYAWoIRUNPQkFTSUNyCFdIS1UwU0JJCjUI1YIBEgQ0NDk1GK4cIOC0ASiF_5IDMNv_kgM4V0ABWAFqCEVDT0JBU0lDcghXSEtVMFNCSQqiAQo1CNWCARIENTY5MRjgtAEgrhwon_OUAzDt85QDOFNAAFgBaghFQ09CQVNJQ3IIU0hLNDdTQkkKNAjVggESBDIxNzkYrhwgsnEovfSUAzDm9pQDOFNAAVgBaghFQ09CQVNJQ3IIU0hLNDdTQkkKMwjVggESAzg5MxiycSDIaCiE_ZQDMOiClQM4U0ABWAFqCEVDT0JBU0lDcghTSEs0N1NCSRIKCAEQARgBKgJVQRgBIgQIARABKAIoBCgGMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,777 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1776.88&airProductToken=AQqoAQo1CNWCARIDODA2GMhoILJxKJbzkgMwqviSAzhTQABYAWoKRUNPUEFSVFJFRnIIU0hLNDdTRDIKNgjVggESBDI0ODAYsnEgrhwoqfySAzC7_pIDOFNAAVgBagpFQ09QQVJUUkVGcghTSEs0N1NEMgo3CNWCARIENDQ5NRiuHCDgtAEohf-SAzDb_5IDOFNAAVgBagpFQ09QQVJUUkVGcghTSEs0N1NEMgqoAQo3CNWCARIENTY5MRjgtAEgrhwon_OUAzDt85QDOFNAAFgBagpFQ09QQVJUUkVGcghTSEs0N1NEMgo2CNWCARIEMjE3ORiuHCCycSi99JQDMOb2lAM4U0ABWAFqCkVDT1BBUlRSRUZyCFNISzQ3U0QyCjUI1YIBEgM4OTMYsnEgyGgohP2UAzDogpUDOFNAAVgBagpFQ09QQVJUUkVGcghTSEs0N1NEMhIKCAEQARgBKgJVQRgBIgQIARABKAIoBCgGMAE) ![Korean Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/ke.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,807 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1806.53&airProductToken=AQp-CkIIy4oBEgQ3MjczGMhoIOO0ASjL8pIDMOv4kgM4TEAAWAFqCkVZU1RBTkRBUkRyCExIWDAwS1lLegkIxJgBEgMxNTgKOAjEmAESBDQ2OTYY47QBIOC0ASjX-ZIDMKr6kgM4VUABWAFqCkVZU1RBTkRBUkRyCExIWDAwS1lLEgoIARABGAEqAktFGAEiBAgBEAEoAigEKAYwAQ) ![Japan Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/JL.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,841 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1840.13&airProductToken=AQq1AQpDCMqYARIENTIwNhjIaCCtnAEov_aSAzDV95IDOFNAAFgBagpFQ09TRU1GTFhGcghTSFgwMFlOOHoKCMuKARIENTIwNgo1CMqYARICNTYYrZwBIK4cKM39kgMwnYOTAzhTQAFYAWoKRUNPU0VNRkxYRnIIU0hYMDBZTjgKNwjBggESBDM0MTAYrhwg4LQBKJ-IkwMw6oiTAzhTQAFYAWoKRUNPU0VNRkxYRnIIU0hYMDBZTjgSCggBEAEYASoCSkwYASIECAEQASgCKAQoBjAB) ![Qatar Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QR.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,886 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1885.53&airProductToken=AQqzAQo1CNGkARIDODU5GMhoIMM7KLTukgMwjPOSAzhTQABYAWoKRUNPTlZFTklFTnIIU0xLUlIxU0kKNQjRpAESAzcyNRjDOyCuHCin9JIDMKb7kgM4U0ABWAFqCkVDT05WRU5JRU5yCFNMS1JSMVNJCkMI0aQBEgQ4Nzg1GK4cIOC0ASjo_pIDMK__kgM4T0ABWAFqCkVDT05WRU5JRU5yCFNMS1JSMVNJegoIwYIBEgQzNzkwEgoIARABGAEqAlFSGAEiBAgBEAEoAigEKAYwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Jul 21 - Wed, Aug 12 ICN Seoul ATW Appleton $1,927 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ICN,to:ATW,departure:7/21/2026TANYT&leg2=from:ATW,to:ICN,departure:8/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1926.23&airProductToken=AQpwCjUIxJgBEgMxNTgYyGgg47QBKMvykgMw6_iSAzhMQABYAWoJTUFJTkVYVFJBcghMSFgwWktZSwo3CMSYARIENDY5NhjjtAEg4LQBKNf5kgMwqvqSAzhMQAFYAWoJTUFJTkVYVFJBcghMSFgwWktZSwpuCjYIxJgBEgQzOTc1GOC0ASDMfCjy7pQDML_vlAM4VEAAWAFqCU1BSU5FWFRSQXIIVEhYNDdLWUsKNAjEmAESAzE3MRjMfCDIaCiW8pQDMNT4lAM4VEABWAFqCU1BSU5FWFRSQXIIVEhYNDdLWUsSCggBEAEYASoCREwYASIECAEQASgCKAQoBjAB) ![](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.com/deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### How much does a flight from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW) cost? ### What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW)? ### What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW)? ### How many flights per day from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW)? ### What day of the week has the most flights from ICN to ATW? ### What is the best time to fly from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW)? ### Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW) last-minute? ### Is it cheaper to book an ICN to ATW flight and hotel package? ### Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Appleton Intl. Airport (ATW)? ## Travel information | Origin airport | Incheon Intl. | | ------------------- | -------------- | | Destination airport | Appleton Intl. | | Roundtrip price | $1,681 | | Distance | 6382 mi | ## Book with confidence # Seoul to Appleton Flights The cheapest times to fly from Seoul to Appleton 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 Seoul to Appleton are during the month of July. You can find some of the cheapest flights from Seoul to Appleton with Expedia's search tool and vast selection of airlines. The best time to book a flight from Seoul to Appleton Sunday is one of the best days to book for cheap flights from Seoul to Appleton: 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 Seoul to Appleton 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 Seoul to Appleton in 2026\. You can also book with separate airlines for your outbound and return journeys, from $878 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 Seoul to Appleton 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 Seoul to Appleton 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\. 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