£501 Cheap Flights from Seattle (SEA) to Vientiane (VTE)

View £501 flight on Fri, 8 Aug 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Wattay Intl. Airport (VTE)

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Cheap Flights from Seattle (SEA) to Vientiane (VTE)

Prices were available within the past 7 days and start at £501 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flight from Seattle to Vientiane route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Wattay Intl.
Distance
11409 km

Compare flights from Seattle to Vientiane easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Vientiane. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Wattay Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Wattay Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Wattay Intl. (VTE)

The easiest way to view the best deals on flights from Seattle to Vientiane today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Wattay Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Vientiane
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Vientiane flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Wattay Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Sea-Tac Airport to Wattay Intl. Airport (VTE)?
The lowest price advertised for a round-trip journey from Seattle - Tacoma Intl. Airport (SEA) to Vientiane Airport is . But you better act quick. This price is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Vientiane Airport?
Most flights can be conveniently cancelled online, but whether you incur a fee all comes down to your airline. If you do have to cancel your break, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Sea-Tac Airport to Vientiane Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to Wattay Intl. Airport (VTE) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from SEA to VTE?
Averaging 19 hours and 50 minutes, the flight from SEA to Vientiane Airport is a lengthy one. To make your time on board more relaxing, bring a good neck pillow and a set of earplugs.
How far is the flight from Sea-Tac Airport to Wattay Intl. Airport (VTE)?
You'll have 11,500 kilometres to cover on the long-haul SeaTac to Vientiane route. Dress in layers of comfortable clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from SEA to VTE?
If you want to travel straight from SEA to Vientiane Airport, you'll have to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route.
Are Seattle - Tacoma Intl. Airport (SEA) to Vientiane Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an amazing last-minute deal from Seattle - Tacoma Intl. Airport (SEA) to VTE, but it's also possible to miss out entirely! As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest easy knowing you're always getting the latest offers.

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