$436 Cheap Flights from Penang (PEN) to Seattle (SEA)

View $436 flight on Thu, Oct 30, 2025Opens in a new window

Popular airlines from Penang Intl. Airport (PEN) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Penang to Seattle (PEN-SEA)

Prices were available within the past 7 days and start at $436 for one-way flights and $1,019 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Mon, Jun 1 - Fri, Jul 31
PEN
Penang
SEA
Seattle
$1,019 Roundtrip, found 5 days ago
$1,019
Roundtrip
found 5 days ago
Select China Airlines flight, departing Mon, Jun 1 from Penang to Seattle, returning Fri, Jul 31, priced at $1,019 found 5 days ago
Singapore Airlines
Wed, Jan 21 - Sun, Jan 25
PEN
Penang
SEA
Seattle
$1,028 Roundtrip, found 3 days ago
$1,028
Roundtrip
found 3 days ago
Select Singapore Airlines flight, departing Wed, Jan 21 from Penang to Seattle, returning Sun, Jan 25, priced at $1,028 found 3 days ago
Singapore Airlines
Wed, Jan 21 - Sun, Jan 25
PEN
Penang
SEA
Seattle
$1,043 Roundtrip, found 3 days ago
$1,043
Roundtrip
found 3 days ago
Select Singapore Airlines flight, departing Wed, Jan 21 from Penang to Seattle, returning Sun, Jan 25, priced at $1,043 found 3 days ago
China Airlines
Mon, Jun 1 - Fri, Jul 31
PEN
Penang
SEA
Seattle
$1,050 Roundtrip, found 5 days ago
$1,050
Roundtrip
found 5 days ago
Select China Airlines flight, departing Mon, Jun 1 from Penang to Seattle, returning Fri, Jul 31, priced at $1,050 found 5 days ago
Singapore Airlines
Wed, Jan 21 - Sun, Jan 25
PEN
Penang
SEA
Seattle
$1,050 Roundtrip, found 3 days ago
$1,050
Roundtrip
found 3 days ago
Select Singapore Airlines flight, departing Wed, Jan 21 from Penang to Seattle, returning Sun, Jan 25, priced at $1,050 found 3 days ago
Singapore Airlines
Wed, Jan 21 - Sun, Jan 25
PEN
Penang
SEA
Seattle
$1,055 Roundtrip, found 3 days ago
$1,055
Roundtrip
found 3 days ago
Select Singapore Airlines flight, departing Wed, Jan 21 from Penang to Seattle, returning Sun, Jan 25, priced at $1,055 found 3 days ago
China Airlines
Sun, Nov 16 - Tue, Feb 3
PEN
Penang
SEA
Seattle
$1,055 Roundtrip, found 6 days ago
$1,055
Roundtrip
found 6 days ago
Select China Airlines flight, departing Sun, Nov 16 from Penang to Seattle, returning Tue, Feb 3, priced at $1,055 found 6 days ago
Cathay Pacific
Sun, Nov 16 - Tue, Feb 3
PEN
Penang
SEA
Seattle
$1,117 Roundtrip, found 6 days ago
$1,117
Roundtrip
found 6 days ago
Select Cathay Pacific flight, departing Sun, Nov 16 from Penang to Seattle, returning Tue, Feb 3, priced at $1,117 found 6 days ago
Thai Airways International
Mon, Jun 1 - Fri, Jul 31
PEN
Penang
SEA
Seattle
$1,119 Roundtrip, found 5 days ago
$1,119
Roundtrip
found 5 days ago
Select Thai Airways International flight, departing Mon, Jun 1 from Penang to Seattle, returning Fri, Jul 31, priced at $1,119 found 5 days ago
Air Canada
Wed, Jan 21 - Sun, Jan 25
PEN
Penang
SEA
Seattle
$1,127 Roundtrip, found 3 days ago
$1,127
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Jan 21 from Penang to Seattle, returning Sun, Jan 25, priced at $1,127 found 3 days ago
Flights from Penang (PEN) to Seattle (SEA)
Origin airport
Penang Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
British Airways, Malaysia Airlines, United
Roundtrip price
$1,019
Distance
7969 mi

Penang to Seattle Flights

The cheapest times to fly from Penang to Seattle

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

 

The best time to book a flight from Penang to Seattle

Sunday is one of the best days to book for cheap flights from Penang to Seattle: 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 Penang to Seattle

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 Penang to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $436 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 Penang to Seattle 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 Penang to Seattle 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.

 

Frequently asked questions

How much does a flight from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA) cost?
Snag a cheap one-way flight from $436 or cheap return flight from $1,019 from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA)?
Planning your getaway for June may help you find better deals, as it's the cheapest month for flights between PEN and SEA. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from PEN to SEA. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA)?
You'll need to catch a flight with a layover if you're traveling from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PEN to SEA?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA)?
To arrive at Seattle - Tacoma Intl. Airport (SEA) on time, book a flight that leaves from Penang Intl. Airport (PEN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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.
Is it cheaper to buy a plane ticket from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your plane ticket from PEN to SEA right before your trip is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a PEN to SEA flight and hotel package?
Compared with arranging hotels and flights separately, booking a PEN to SEA flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Penang Intl. Airport (PEN) to Seattle - Tacoma Intl. Airport (SEA)?
Usually, it's possible to cancel or reschedule your PEN to SEA flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.