Cheap Flights from Portsmouth (PSM) to Yeosu (RSU)

Popular airlines from Portsmouth, NH (PSM-Portsmouth Intl.) to Yeosu (RSU)

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Frequently asked questions

How much does a flight from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU) cost?
Grab a cheap one-way flight or cheap return flight from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU)?
is the cheapest month to fly from PSM to RSU. Traveling outside of peak seasons is often the key to finding better fares.
What is the cheapest airline that flies from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU)?
To find the cheapest airline flying from PSM to RSU, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU)?
There aren't any daily direct flights from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from PSM to RSU?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU)?
Book a flight from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU) last-minute?
Booking your flight from PSM to RSU just before your getaway is typically more expensive. However, if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a PSM to RSU flight and hotel package?
You'll typically save money by booking a PSM to RSU flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Portsmouth Intl. Airport (PSM) to Yeosu Airport (RSU)?
If you reserved your PSM to RSU flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Portsmouth Intl.
Destination airport
Yeosu
Distance
6928 mi

Book with confidence

Book with confidence

Portsmouth to Yeosu Flights

The cheapest times to fly from Portsmouth to Yeosu

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 Portsmouth to Yeosu are during the month of . You can find some of the cheapest flights from Portsmouth to Yeosu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portsmouth to Yeosu

Sunday is one of the best days to book for cheap flights from Portsmouth to Yeosu: 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 Portsmouth to Yeosu

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 Portsmouth to Yeosu in 2025. 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 Portsmouth to Yeosu 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. Bundling together your Portsmouth to Yeosu 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.

 

Portsmouth to Yeosu Flights

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