A calm sea with a sailboat and rocky coastline.

Flights to Great Diamond Island, Portland from NT$37,721

View NT$27,129 flight on Fri, 2026/10/23Opens 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 NT$27,129 for one-way flights and NT$37,721 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Etihad Airways
United
Asiana Airlines
EVA Airways

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, NT$37,721 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 Taipei (TPE) sold for just NT$27,129 in the last seven days. During this period, the price of a return airfare to Great Diamond Island ranged between NT$37,721 and NT$48,604. 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 NT$37,721 to NT$48,604 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.

Travel information

Destination airport
Portland Intl. Jetport
Destination airport IATA code
PWM
Destination city name
Portland
Roundtrip price
NT$37,721

Trending flights to Great Diamond Island

Prices were available within the past 7 days and start at NT$27,129 for one-way flights and NT$37,721 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta

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