Are direct flights from Philadelphia to Seoul always the best option?

Direct flights offer convenience and save time, but they are not always the most budget-friendly choice. Flights with layovers can often be cheaper, though they will extend your travel duration. Consider your priorities for cost versus travel time when making your decision.

Can flexible travel dates help on Philadelphia to Seoul flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Flying during off-peak seasons or on less popular days of the week often results in lower fares. Even shifting your departure or return by a day or two may yield savings.

What extra costs should I check before booking Philadelphia to Seoul flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for meals or entertainment. Understanding these additional expenses helps you calculate the total cost of your trip.

Flights From Philadelphia

To Seoul

Cheap Flights from Philadelphia to Seoul

Browse current best options from Philadelphia. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Philadelphia

RatePunk searches hundreds of travel sites at once for deals on flights to Seoul

Prices updated today

485 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Nov 2, 2026.)

Today’s best flight deals from Philadelphia to Seoul

Explore current cheapest deals departing from Philadelphia to Seoul

2026-11-08 – 2026-11-16
PHL - Seoul
76% AI deal score
$1,073
$1,148
Round trip
2026-11-18 – 2026-11-26
PHL - Seoul
76% AI deal score
$1,048
$1,148
Round trip
2026-12-09 – 2026-12-16
PHL - Seoul
78% AI deal score
$1,221
$1,157
Round trip
2027-04-15 – 2027-04-29
PHL - Seoul
80% AI deal score
$1,277
$1,183
Round trip
2026-11-10 – 2026-11-30
PHL - Seoul
75% AI deal score
$1,020
$1,214
Round trip
2026-11-20 – 2026-11-29
PHL - Seoul
72% AI deal score
$1,047
$1,298
Round trip
2026-11-22 – 2026-11-29
PHL - Seoul
74% AI deal score
$1,072
$1,338
Round trip
2026-11-21 – 2026-11-29
PHL - Seoul
72% AI deal score
$1,049
$1,355
Round trip
2027-01-01 – 2027-01-09
PHL - Seoul
70% AI deal score
$1,036
$1,430
Round trip
2026-12-13 – 2026-12-24
PHL - Seoul
74% AI deal score
$1,177
$1,588
Round trip

Philadelphia to Seoul: Overview

Insights for flights from Philadelphia to Seoul

A typical journey from Philadelphia to Seoul takes about 38h 5m including connections. Given that most itineraries on this long-haul route involve at least one stop, this duration accounts for the total travel time from departure to arrival, including layovers. This is a significant travel time, reflecting the considerable distance between the two cities.

For travelers seeking cheap flights from Philadelphia to Seoul, fares typically range from $1506 to $2467, with a median of $1776. Right now, current fares are above the typical level, and only 2% of recent fares were classified as a good price. New deals show up several times a week, so setting up a price alert can help you track fare changes.

The cheapest time to fly from Philadelphia to Seoul is typically during January, with a median fare of $1061. Other cost-effective months include August, where the median fare is $1105, and July, with a median of $1140. Planning your trip during these months could result in more favorable pricing.

When flying from Philadelphia to Seoul, most itineraries connect at least once. In fact, 0% of recent fares were for direct flights from Philadelphia to Seoul. For connecting itineraries, the typical number of stopovers is 2, indicating that you should expect multiple stops on this route. The significant distance of 11,135 km classifies this as a long-haul journey.

How much is a round trip from Philadelphia to Seoul

Regular price: $1,043 - $2,057

Prices for flights from Philadelphia to Seoul are currently below the regular range.

The regular price range for this route is typically between $1043 and $2057. The current lowest deal is $1032 with Frontier Airlines for travel from Dec 8-Dec 15.

now $1,032

Low $1,043

High $2,057

The cheapest time to fly from Philadelphia to Seoul

The cheapest month to fly from Philadelphia to Seoul is January, with a median price of $1061. The most expensive month is December, with a median price of $2565. Prices are generally lower from January to November.

January

Cheapest

Flights from $1,061

December

Most Expensive

Flights from $2,565

Jan

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Philadelphia to Seoul

Korean Air

Alaska Airlines, Inc.

United Airlines

Frontier Airlines

Last-minute flights going from Philadelphia to Seoul

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,227

$1,232

One-way

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,128

$1,376

One-way

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,163

$1,450

One-way

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,228

$1,450

One-way

Wed, Oct 28

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,128

$1,137

One-way

Wed, Oct 28

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,228

$1,271

One-way

Biggest price drops on these dates for flights from Philadelphia to Seoul

7 nights

Dec 8 - Dec 15

$1,221 → $1,032

16%

4 nights

Oct 29 - Nov 2

$1,429 → $1,292

10%

9 nights

Apr 16 - Apr 25

$1,276 → $1,140

11%

9 nights

Apr 17 - Apr 26

$1,276 → $1,141

11%

Popular Airports to fly from Philadelphia to Seoul

Philadelphia - Seoul route insights

💸 Price insights

Recent fares are above the typical level

Recent roundtrip airfares from Philadelphia to Seoul are above the typical level at $1032.

📅 Best time to fly

January is historically cheapest

Historically, January is the cheapest month to fly from Philadelphia to Seoul, with a median price of $1061.

⏱️ Flight duration

Connecting flights average 38h 5m

Connecting flights from Philadelphia to Seoul typically take 38h 5m, covering a long-haul distance of 11135 km.

✈️ Airlines & availability

Connecting flights are dominant

There are no direct flights available; connecting flights are dominant for this route.

🏆 Airline highlight

Frontier Airlines offers a recent deal

Frontier Airlines recently offered a roundtrip deal for $1032 from Philadelphia to Seoul.

🎯 Booking tip

Deals appear regularly

Deals for flights from Philadelphia to Seoul appear regularly, with 2% considered good prices.

Philadelphia main airports to depart from

Philadelphia International (PHL)

Cheapest

Philadelphia International Airport is a convenient departure point for flights from Philadelphia to Seoul.

📍 ~11 km from city center (reachable by car or train)

💸 Flights from ~$1,094

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Incheon International Airport is a good choice for flights to Seoul, offering competitive prices from Philadelphia.

📍 ~48 km from Seoul city center (reachable by car)

💸 Flights from ~$1,123

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International Airport is a useful alternative for regional international routes, with excellent bus and rail connectivity.

📍 ~110 km from Seoul (reachable by bus and rail)

💸 Flights from ~$1,104

Business & First Class Flight Deals to Seoul

Discover luxury on the budget with premium cabin class on flights from Philadelphia to Seoul.

Elite

Best Elite deals to Seoul

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From PHL

Elite

Dec 05

Seoul, South Korea

83% AI deal score

$26,505

$23,094

Save $3,411

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Dec 05

Seoul, South Korea

81% AI deal score

$25,082

$23,094

Save $1,988

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Nov 30

Seoul, South Korea

80% AI deal score

$24,530

$23,178

Save $1,352

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Nov 19

Seoul, South Korea

79% AI deal score

$23,466

$22,990

Save $476

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Nov 14

Seoul, South Korea

79% AI deal score

$23,582

$23,094

Save $488

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Nov 14

Seoul, South Korea

79% AI deal score

$23,582

$23,094

Save $488

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Dec 05

Seoul, South Korea

79% AI deal score

$24,091

$23,094

Save $997

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Jan 01

Seoul, South Korea

79% AI deal score

$23,917

$23,112

Save $805

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Jan 03

Seoul, South Korea

79% AI deal score

$25,877

$25,238

Save $639

Alaska Airlines, Inc., +1

Business Class

From PHL

Elite

Dec 05

Seoul, South Korea

78% AI deal score

$4,771

$4,553

Save $218

Air Canada, +1

Business Class

From PHL

Elite

Nov 21

Seoul, South Korea

78% AI deal score

$5,039

$4,857

Save $182

Air Canada, +1

Business Class

From PHL

Elite

Nov 19

Seoul, South Korea

78% AI deal score

$22,990

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Seoul

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking flights in advance, often several months out, can sometimes lead to lower prices. However, last-minute deals can also appear, so it's wise to monitor price trends. Weekday bookings may also offer different pricing compared to weekend bookings.

Comparing nearby airports at both your origin and destination can sometimes uncover more economical flight options. While it may add to travel time, the potential savings could be significant. Always factor in ground transportation costs and convenience when considering this approach.

Related routes

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Flights to Seoul from other cities

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Philadelphia to Seoul: Overview

Insights for flights from Philadelphia to Seoul

How much is a round trip from Philadelphia to Seoul

Regular price: $1,043 - $2,057

Prices for flights from Philadelphia to Seoul are currently below the regular range.

The regular price range for this route is typically between $1043 and $2057. The current lowest deal is $1032 with Frontier Airlines for travel from Dec 8-Dec 15.

now $1,032

Low $1,043

High $2,057

The cheapest time to fly from Philadelphia to Seoul

January

Cheapest

Flights from $1,061

December

Most Expensive

Flights from $2,565

Jan

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Philadelphia to Seoul

Korean Air

Alaska Airlines, Inc.

United Airlines

Frontier Airlines

Last-minute flights going from Philadelphia to Seoul

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,227

$1,232

One-way

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,128

$1,376

One-way

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,163

$1,450

One-way

Tue, Oct 27

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,228

$1,450

One-way

Wed, Oct 28

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,128

$1,137

One-way

Wed, Oct 28

⌛ Last-Minute

PHL - Seoul

Philadelphia (PHL) - Seoul (ICN)

Korean Air

$1,228

$1,271

One-way

Biggest price drops on these dates for flights from Philadelphia to Seoul

7 nights

Dec 8 - Dec 15

$1,221 → $1,032

16%

4 nights

Oct 29 - Nov 2

$1,429 → $1,292

10%

9 nights

Apr 16 - Apr 25

$1,276 → $1,140

11%

9 nights

Apr 17 - Apr 26

$1,276 → $1,141

11%

Popular Airports to fly from Philadelphia to Seoul

Philadelphia - Seoul route insights

💸 Price insights

Recent fares are above the typical level

Recent roundtrip airfares from Philadelphia to Seoul are above the typical level at $1032.

📅 Best time to fly

January is historically cheapest

Historically, January is the cheapest month to fly from Philadelphia to Seoul, with a median price of $1061.

⏱️ Flight duration

Connecting flights average 38h 5m

Connecting flights from Philadelphia to Seoul typically take 38h 5m, covering a long-haul distance of 11135 km.

✈️ Airlines & availability

Connecting flights are dominant

There are no direct flights available; connecting flights are dominant for this route.

🏆 Airline highlight

Frontier Airlines offers a recent deal

Frontier Airlines recently offered a roundtrip deal for $1032 from Philadelphia to Seoul.

🎯 Booking tip

Deals appear regularly

Deals for flights from Philadelphia to Seoul appear regularly, with 2% considered good prices.

Philadelphia main airports to depart from

Philadelphia International (PHL)

Cheapest

Philadelphia International Airport is a convenient departure point for flights from Philadelphia to Seoul.

📍 ~11 km from city center (reachable by car or train)

💸 Flights from ~$1,094

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Incheon International Airport is a good choice for flights to Seoul, offering competitive prices from Philadelphia.

📍 ~48 km from Seoul city center (reachable by car)

💸 Flights from ~$1,123

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International Airport is a useful alternative for regional international routes, with excellent bus and rail connectivity.

Seoul, South Korea

78% AI deal score

$22,990

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to Seoul

Cheap Flights from Philadelphia to Seoul

Today’s best flight deals from Philadelphia to Seoul

Philadelphia to Seoul: Overview

Insights for flights from Philadelphia to Seoul

How much is a round trip from Philadelphia to Seoul

The cheapest time to fly from Philadelphia to Seoul

Direct flights from Philadelphia to Seoul

Last-minute flights going from Philadelphia to Seoul

Biggest price drops on these dates for flights from Philadelphia to Seoul

Popular Airports to fly from Philadelphia to Seoul

Philadelphia - Seoul route insights

Recent fares are above the typical level

January is historically cheapest

Connecting flights average 38h 5m

Connecting flights are dominant

Frontier Airlines offers a recent deal

Deals appear regularly

Philadelphia main airports to depart from

Seoul main airports to arrive at

Airports nearby Seoul used as alternative

Business & First Class Flight Deals to Seoul

Best Elite deals to Seoul

Dec 05

Dec 05

Nov 30

Nov 19

Nov 14

Nov 14

Dec 05

Jan 01

Jan 03

Dec 05

Nov 21

Nov 19

Frequently Asked Questions About Flights to Seoul

How can I find cheap flights from Philadelphia to Seoul?

When should I book flights from Philadelphia to Seoul?

Should I compare nearby airports for flights from Philadelphia to Seoul?

Are direct flights from Philadelphia to Seoul always the best option?

Can flexible travel dates help on Philadelphia to Seoul flights?

What extra costs should I check before booking Philadelphia to Seoul flights?

Related routes

More routes from Philadelphia

Flights to Seoul from other cities

Philadelphia to Seoul: Overview

Insights for flights from Philadelphia to Seoul

How much is a round trip from Philadelphia to Seoul

The cheapest time to fly from Philadelphia to Seoul

Direct flights from Philadelphia to Seoul

Last-minute flights going from Philadelphia to Seoul

Biggest price drops on these dates for flights from Philadelphia to Seoul

Popular Airports to fly from Philadelphia to Seoul

Philadelphia - Seoul route insights

Recent fares are above the typical level

January is historically cheapest

Connecting flights average 38h 5m

Connecting flights are dominant

Frontier Airlines offers a recent deal

Deals appear regularly

Philadelphia main airports to depart from

Seoul main airports to arrive at

Airports nearby Seoul used as alternative

Business & First Class Flight Deals to Seoul

Best Elite deals to Seoul

Dec 05

Dec 05

Nov 30

Nov 19

Nov 14

Nov 14

Dec 05

Jan 01

Jan 03

Dec 05

Nov 21

Nov 19

Frequently Asked Questions About Flights to Seoul

How can I find cheap flights from Philadelphia to Seoul?

When should I book flights from Philadelphia to Seoul?

Should I compare nearby airports for flights from Philadelphia to Seoul?