Cheap flights from Seoul to Philadelphia from $427
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Philadelphia departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seoul to Philadelphia
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Delta flights from Seoul to Philadelphia
Our best Delta deals on Seoul to Philadelphia flight tickets
Air Canada flights from Seoul to Philadelphia
Our best Air Canada deals on Seoul to Philadelphia flight tickets
See travel insights to Philadelphia from
How to get the cheapest flight ticket from Seoul to Philadelphia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Philadelphia?
The cheapest day to depart from Seoul to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $919. On the other hand, Saturday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,072.
What is the cheapest time of day to depart on your flight to Philadelphia?
According to our data, the cheapest time of day to fly to Philadelphia is in the afternoon. momondo users have found flights departing from Seoul to Philadelphia in the afternoon for as low as $916. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the evening when prices are around $1,846.
How far in advance should I book a flight to Philadelphia?
You are more likely to see cheaper flights to Philadelphia from Seoul when booking 2 weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $1,002 when searching 2 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Seoul for as low as $682 on momondo.
How have Seoul to Philadelphia flight prices changed over time?
As of April 2025, prices for Seoul to Philadelphia flights are approximately 62% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seoul to Philadelphia?
Delta, American Airlines, and United Airlines are the most popular carriers operating from Seoul to Philadelphia
What airlines fly to Philadelphia?
AIR PREMIA, United Airlines and Air Canada are the top three most popular airlines that fly to Philadelphia from Seoul according to our data. AIR PREMIA is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.
When to book flights from Seoul to Philadelphia
Cheap Seoul to Philadelphia (SEL to PHL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seoul to Philadelphia
How far is Seoul to Philadelphia by plane?
There are 6895.9 mi between Seoul and Philadelphia. Flights usually cover this in 16h 23m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seoul to Philadelphia Airport?
Prices for flights from Seoul to Philadelphia Airport refresh daily.
How many operators does momondo search for flights from Seoul to Philadelphia Airport?
As of April 2025, there are 4 operators available to choose from for flights from Seoul to Philadelphia Airport.
How old do you have to be to fly from Seoul to Philadelphia Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Seoul to Philadelphia?
momondo data reveals that the most frequently booked airline on the route from Seoul to Philadelphia is American Airlines, representing 100% of all bookings.
Best airlines flying from Seoul to Philadelphia
Compare and see reviews for airlines that fly from Seoul to Philadelphia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $552 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $659 | Free Cancellation | Rating 7.4 8,629 reviews | |||
| PriceFrom $887 | Free Cancellation | Rating 7.0 9,066 reviews | |||
| PriceFrom $954 | Free Cancellation | Rating 8.4 1,056 reviews |
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seoul to Philadelphia?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to Philadelphia. momondo saves you time and could save you money on your trip.
Can I find flights from Seoul to Philadelphia with flexible booking policies on momondo?
Yes. All flights to Philadelphia from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Seoul to Philadelphia?
Once all potential Seoul to Philadelphia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Seoul to Philadelphia right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Seoul and alert you when they change.