Cheap Flights from Seattle (SEA) to Tachilek (THL)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Tachilek (THL)

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Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL) cost?
Secure a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL) 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 Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL)?
is the cheapest month to fly from SEA to THL. Traveling during quieter months is often the key to finding better fares.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SEA to THL flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to THL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on various factors, including the season 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 Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL)?
To land at Tachilek Airport (THL) without delays, select a flight that takes off from Seattle - Tacoma Intl. Airport (SEA) 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 Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL) last-minute?
Waiting until just before your departure to book a flight from SEA to THL often results in higher prices. While you may find some last-minute deals, there's no guarantee. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book a SEA to THL flight and hotel package?
Securing a SEA to THL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our wide range of stays and then add car rentals, activities and flights 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 Seattle - Tacoma Intl. Airport (SEA) to Tachilek Airport (THL)?
In most instances, you're able to reschedule or cancel your SEA to THL flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Tachilek
Distance
7061 mi

Book with confidence

Book with confidence

Seattle to Tachilek Flights

The cheapest times to fly from Seattle to Tachilek

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

 

The best time to book a flight from Seattle to Tachilek

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

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

 

Seattle to Tachilek Flights
*Available to One Key members.