$1,187 Cheap Flights from Utapao (UTP) to Seattle (SEA)

View $1,187 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from Utapao (UTP-Utapao Intl.) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Utapao to Seattle (UTP-SEA)

Prices were available within the past 7 days and start at $1,187 for one-way flights and $7,774 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$7,774 Roundtrip, found 2 days ago
$7,774
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $7,774 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$8,081 Roundtrip, found 2 days ago
$8,081
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $8,081 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$8,085 Roundtrip, found 2 days ago
$8,085
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $8,085 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$8,243 Roundtrip, found 2 days ago
$8,243
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $8,243 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$8,490 Roundtrip, found 2 days ago
$8,490
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $8,490 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$8,805 Roundtrip, found 2 days ago
$8,805
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $8,805 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$8,812 Roundtrip, found 2 days ago
$8,812
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $8,812 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$9,482 Roundtrip, found 2 days ago
$9,482
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $9,482 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$9,486 Roundtrip, found 2 days ago
$9,486
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $9,486 found 2 days ago
Qatar Airways
Fri, Aug 29 - Fri, Sep 5
UTP
Chonburi Province
SEA
Seattle
$9,674 Roundtrip, found 2 days ago
$9,674
Roundtrip
found 2 days ago
Select Qatar Airways flight, departing Fri, Aug 29 from Chonburi Province to Seattle, returning Fri, Sep 5, priced at $9,674 found 2 days ago
Flights from Utapao (UTP) to Seattle (SEA)
Origin airport
Utapao Intl.
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
$7,774
Distance
7501 mi

Utapao to Seattle Flights

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

 

The best time to book a flight from Utapao to Seattle

Sunday is one of the best days to book for cheap flights from Utapao 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 Utapao 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 Utapao to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,187 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 Utapao 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 Utapao 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 Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA) cost?
Get a cheap one-way flight from $1,187 or cheap return flight from $7,774 from Utapao Intl. Airport (UTP) 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 Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA)?
August is the most affordable month to fly from UTP to SEA. Avoiding peak travel times is often the key to finding a great deal.
What is the cheapest airline that flies from Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest UTP to SEA flight.
How many flights per day from Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA)?
You'll need to take a flight with a layover when traveling from Utapao Intl. Airport (UTP) 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 UTP to SEA?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA)?
Opt for a flight from Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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 Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from UTP to SEA are generally more expensive. For the best prices, start looking for flights well ahead of time. That being said, if you're flexible with your travel plans, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book an UTP to SEA flight and hotel package?
Booking an UTP to SEA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Utapao Intl. Airport (UTP) to Seattle - Tacoma Intl. Airport (SEA)?
In most cases, you can reschedule or cancel your UTP to SEA flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more details, go to our Customer Service portal.

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*Available to One Key members.