Cheap Flights from Seoul (ICN) to Portsmouth (PSM)

Popular airlines from Incheon Intl. Airport (ICN) to Portsmouth, NH (PSM-Portsmouth Intl.)

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Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM) cost?
Grab a cheap one-way flight or cheap return flight from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM)?
The cheapest month to fly from ICN to PSM is , when demand is low. Off-peak season is typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from ICN to PSM. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM)?
Direct flights from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ICN to PSM?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a range of 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 Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM)?
Select a flight from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour 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.
What airports do you fly into for Portsmouth from Incheon Intl. Airport (ICN)?
Logan Intl. Airport (BOS) is the only airport in Portsmouth with direct flights from Incheon Intl. Airport (ICN). Browse the options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM) last-minute?
Last-minute fares from ICN to PSM are usually more expensive. To secure the lowest rates, start searching for flights ahead of time. That said, if you're flexible with your travel dates, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book an ICN to PSM flight and hotel package?
Securing an ICN to PSM flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Portsmouth Intl. Airport (PSM)?
Typically, you can cancel or reschedule your ICN to PSM flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Origin airport
Incheon Intl.
Destination airport
Portsmouth Intl.
Distance
6766 mi

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Seoul to Portsmouth Flights

The cheapest times to fly from Seoul to Portsmouth

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

 

The best time to book a flight from Seoul to Portsmouth

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

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 Portsmouth 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 Seoul to Portsmouth 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 Seoul to Portsmouth 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.

 

Seoul to Portsmouth Flights

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*Available to One Key members.