--- title: "Yeosu to Allentown cheap flights (RSU to ABE) - Expedia" description: "Cheap Flights from Yeosu (RSU) to Allentown (ABE) 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/rsu/abe/yeosu-to-allentown" language: en-US market: US currency: USD prices_as_of: 2026-11-15T20:11:31Z --- # Cheap Flights from Yeosu (RSU) to Allentown (ABE) ![A wooden bridge over a fast-flowing river with a rocky waterfall in the foreground.](https://images.trvl-media.com/place/6265969/8bfb8182-b22c-48e9-a776-d9af4c699daa.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ## Popular airlines from Yeosu (RSU) to Lehigh Valley Intl. Airport (ABE) [American Airlines](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&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:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&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:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) [Delta](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&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:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&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:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&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:RSU,to:ABE,departure:11/29/2026TANYT&leg2=from:ABE,to:RSU,departure:12/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Alternative airports near Allentown Prices were available within the past 7 days. Prices and availability are subject to change. [Select flight to Philadelphia Intl. PHL. Average driving time to city center is 1 hour 21 minutes.](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:PHL,departure:11/29/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 21 min · Search flights [Select flight to Mercer TTN. Average driving time to city center is 1 hour 16 minutes.](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:TTN,departure:11/29/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 16 mi · n · Search flights [Select flight to Scranton Intl. AVP. Average driving time to city center is 1 hour 15 minutes.](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:AVP,departure:11/29/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 15 min · Search flights [Select flight to Lancaster, PA LNS. Average driving time to city center is 1 hour 20 minutes.](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:LNS,departure:11/29/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 20 min · Search flights [Select flight to Northeast Philadelphia PNE. Average driving time to city center is 1 hour 12 minutes.](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:PNE,departure:11/29/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 12 min · Search flights [Select flight to Reading Regional RDG. Average driving time to city center is 47 minutes.](https://www.expedia.com/Flights-Search?leg1=from:RSU,to:RDG,departure:11/29/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 47 min · Search flights ## Book with confidence ### Yeosu to Allentown Flights #### The cheapest times to fly from Yeosu to Allentown 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 Yeosu to Allentown are during the month of . You can find some of the cheapest flights from Yeosu to Allentown with Expedia's search tool and vast selection of airlines. #### The best time to book a flight from Yeosu to Allentown Sunday is one of the best days to book for cheap flights from Yeosu to Allentown: 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 Yeosu to Allentown 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 Yeosu to Allentown 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 Yeosu to Allentown 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 Yeosu to Allentown 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.* ## Travel information | Origin airport | Yeosu | | ------------------- | --------------------------- | | Destination airport | Lehigh Valley Intl. 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