Cheap Flights to Great Diamond Island

View ₩1,397,600 flight on Thu, Nov 20, 2025Opens in a new window

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How much is the cheapest flight to Great Diamond Island?

Prices were available within the past 7 days and start at ₩1,397,600 for one-way flights and ₩1,777,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jan 20 - Tue, Feb 3
ICN
Seoul
PWM
Portland
₩1,777,100 Roundtrip, found 13 hours ago
₩1,777,100
Roundtrip
found 13 hours ago
Select United flight, departing Tue, Jan 20 from Seoul to Portland, returning Tue, Feb 3, priced at ₩1,777,100 found 13 hours ago
Korean Air
Thu, Nov 20 - Thu, Nov 27
ICN
Seoul
PWM
Portland
₩2,103,700 Roundtrip, found 13 hours ago
₩2,103,700
Roundtrip
found 13 hours ago
Select Korean Air flight, departing Thu, Nov 20 from Seoul to Portland, returning Thu, Nov 27, priced at ₩2,103,700 found 13 hours ago
Delta
Mon, Dec 8 - Sat, Dec 27
ICN
Seoul
PWM
Portland
₩2,159,200 Roundtrip, found 13 hours ago
₩2,159,200
Roundtrip
found 13 hours ago
Select Delta flight, departing Mon, Dec 8 from Seoul to Portland, returning Sat, Dec 27, priced at ₩2,159,200 found 13 hours ago
KLM
Sun, Jan 11 - Fri, Jan 23
ICN
Seoul
PWM
Portland
₩2,598,000 Roundtrip, found 13 hours ago
₩2,598,000
Roundtrip
found 13 hours ago
Select KLM flight, departing Sun, Jan 11 from Seoul to Portland, returning Fri, Jan 23, priced at ₩2,598,000 found 13 hours ago
American Airlines
Thu, Jan 1 - Tue, Jan 13
ICN
Seoul
PWM
Portland
₩3,185,700 Roundtrip, found 13 hours ago
₩3,185,700
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Thu, Jan 1 from Seoul to Portland, returning Tue, Jan 13, priced at ₩3,185,700 found 13 hours ago

Find the cheapest month to fly from Columbus (CMH) to Portland (PWM)

September is typically the cheapest month to fly

From ₩177,219 - ₩472,533 per traveler.

Frequently asked questions

How do I find cheap flights to Great Diamond Island that have flexible change policies?
We know that plans can change from one day to the next, so locking in a flexible fare with Expedia is always a clever idea. Tick the "No change fee" box directly under the "Flexible change policies" filter. Your low-priced, flexible flight to Great Diamond Island is only a few clicks away.
Which airlines fly to Great Diamond Island?
With a great range of airlines that fly into or near Great Diamond Island, you're spoiled for choice:

  • United Airlines - 316 flights to or near Great Diamond Island each month, including 316 flights to Portland Intl. Jetport Airport (PWM) per month.
  • Delta Air Lines - 294 flights to or near Great Diamond Island each month, including 294 flights to Portland Intl. Jetport Airport (PWM) per month.
  • American Airlines - 290 flights to or near Great Diamond Island each month, including 290 flights to Portland Intl. Jetport Airport (PWM) per month.

How can I find cheap tickets to Great Diamond Island?
In the last seven days, ₩1,777,100 was the lowest price for a flight to Great Diamond Island. For even bigger savings, book in advance and be flexible with your dates. Search for your flight to Great Diamond Island, then see prices for similar time frames by clicking on our "flexible dates" link.
How much is a flight to Great Diamond Island?
One-way flights taking off from Seoul (ICN) sold for just ₩1,397,600 in the last seven days. During this period, the price of a return airfare to Great Diamond Island ranged between ₩1,777,100 and ₩3,185,700. If you find a bargain ticket, book fast — these fares don't hang about.
What are the most popular airports to fly into in Great Diamond Island?
Start organizing your Great Diamond Island trip by booking one of the 1,140 flights every month to Portland Intl. Jetport Airport (PWM). This is the region's main gateway.
When is the cheapest time to fly to Great Diamond Island?
If you're not fixed on what date you jet off to Great Diamond Island, try to fly out earlier in the week. The most economical day to take off is generally Tuesday, followed closely by Monday. Saturday is typically the most expensive day, with a lot of people opting to take off on the weekend.
How much is a plane ticket to Great Diamond Island?
Plane tickets to Great Diamond Island ranged from ₩1,777,100 to ₩3,185,700 in the last seven days. Typically, the quicker you book the bigger the bargain.
What months are the cheapest to book a flight to Great Diamond Island?
Book your ticket in February to enjoy awesome flight deals to Great Diamond Island. The month of December is often the most expensive time to buy an airfare.

Book with confidence

Searching for cheap flights to Great Diamond Island? No travel company presents more choices than Expedia if you're looking to compare flights to Great Diamond Island. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Portland. Expedia provides the cheapest flights to many destinations in Portland and you may find even greater savings if you combine your flight with a hotel stay in Great Diamond Island.

Travel information

Destination airport
Portland Intl. Jetport
Destination airport IATA code
PWM
Destination city name
Portland
Roundtrip price
₩1,777,100

Trending flights to Great Diamond Island

Prices were available within the past 7 days and start at ₩1,397,600 for one-way flights and ₩1,777,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jan 20 - Tue, Feb 3
ICN
Seoul
PWM
Portland
₩1,777,100 Roundtrip, found 13 hours ago
₩1,777,100
Roundtrip
found 13 hours ago
Select United flight, departing Tue, Jan 20 from Seoul to Portland, returning Tue, Feb 3, priced at ₩1,777,100 found 13 hours ago

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