$713 Cheap Flights from Chiang Rai (CEI) to Seattle (SEA)

View $713 flight on Wed, Oct 8, 2025Opens in a new window

Popular airlines from Chiang Rai Intl. Airport (CEI) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Chiang Rai to Seattle (CEI-SEA)

Prices were available within the past 7 days and start at $713 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA) cost?
Snag a cheap one-way flight from $713 or cheap return flight from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from CEI to SEA is , when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline flying from CEI to SEA, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CEI to SEA?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA)?
To reach Seattle - Tacoma Intl. Airport (SEA) on schedule, opt for a flight that takes off from Chiang Rai Intl. Airport (CEI) 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 Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your flight from CEI to SEA shortly before your trip is typically more expensive. But if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a CEI to SEA flight and hotel package?
Opting for a CEI to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chiang Rai Intl. Airport (CEI) to Seattle - Tacoma Intl. Airport (SEA)?
Typically, it's possible to reschedule or cancel your CEI to SEA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Chiang Rai Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
7094 mi

Book with confidence

Book with confidence

Chiang Rai to Seattle Flights

The cheapest times to fly from Chiang Rai 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 Chiang Rai to Seattle are during the month of . You can find some of the cheapest flights from Chiang Rai to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chiang Rai to Seattle

Sunday is one of the best days to book for cheap flights from Chiang Rai 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 Chiang Rai 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 Chiang Rai to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $713 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 Chiang Rai 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 Chiang Rai 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.

 

Chiang Rai to Seattle Flights

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*Available to One Key members.