In terms of precipitation, rainfall in Vientiane ranges from 0.4 - 4.7 inches per month. July is typically the wettest month, when rainfall can reach 4.7 in. January is typically the driest time to visit Vientiane when rainfall is around 0.4 in.

If weather is an important factor for your trip to Vientiane, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).

What is the cheapest time of day to fly from IAD to VTE?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Vientiane as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Vientiane flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Vientiane flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Vientiane flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Vientiane flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Vientiane flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Vientiane from Washington, D.C. Dulles Intl?

For a flight from Washington, D.C. Dulles Intl to Vientiane, you will be flying into Wattay. Vientiane Wattay (VTE) is just 2.8 mi from the center of the city. Wattay is the only Vientiane airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Vientiane Wattay from Washington, D.C. Dulles Intl on a regular basis.

Can I find deals for flights from Dulles Intl to Vientiane that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Vientiane flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Vientiane?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Vientiane.

Can I find deals for business class flights from Dulles Intl to Vientiane?

Yes. Cheapflights offers flight deals from Dulles Intl to Vientiane by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$548+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Vientiane

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Cheap flight deals from Dulles Intl to Vientiane

Cheapest

Best

Last-minute

One-way

Cheapest flights from Dulles Intl to Vientiane
Explore the most affordable flight options available from Dulles Intl to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 29, 2026.

Tue 10/133:10 pm -

2 stops34h 30m

Tue 11/101:55 pm -

2 stops31h 10m

Deal found 8/24

$1,179

Tue 10/209:00 pm -

2 stops35h 45m

Mon 11/236:15 pm -

2 stops33h 40m

Deal found 8/26

$1,184

Mon 11/92:35 pm -

2 stops41h 10m

Thu 2/111:55 pm -

2 stops31h 10m

Deal found 8/24

$1,255

Fri 9/253:10 pm -

2 stops34h 30m

Wed 9/308:30 pm -

2 stops48h 15m

Deal found 8/26

$1,259

Fri 11/278:05 pm -

2 stops27h 10m

Thu 12/101:55 pm -

2 stops38h 00m

Deal found 8/27

$1,283

Tue 12/292:35 pm -

2 stops39h 15m

Sun 2/282:40 pm -

2 stops30h 25m

Deal found 8/24

$1,349

Best flights from Dulles Intl to Vientiane
Discover carefully curated flight deals from Dulles Intl to Vientiane that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.

Sat 2/208:05 pm -

2 stops29h 00m

Sun 3/146:15 pm -

2 stops33h 40m

Deal found 8/25

$1,323

Thu 2/48:05 pm -

2 stops29h 00m

Thu 2/2511:35 am -

3 stops32h 55m

Deal found 8/24

$1,333

Fri 11/278:05 pm -

2 stops27h 10m

Thu 12/107:30 am -

3 stops44h 25m

Deal found 8/28

$1,339

Wed 2/39:20 pm -

3 stops57h 35m

Wed 2/2411:35 am -

3 stops43h 50m

Deal found 8/25

$1,376

Tue 10/209:00 pm -

3 stops35h 35m

Mon 11/2311:35 am -

3 stops40h 20m

Deal found 8/26

$1,503

Tue 12/299:55 am -

2 stops26h 30m

Sat 2/2712:15 am -

1 stop32h 20m

Deal found 8/24

$1,830

Sun 12/209:20 pm -

2 stops27h 45m

Sun 1/2411:35 am -

3 stops36h 10m

Deal found 8/27

$2,084

Thu 12/242:35 pm -

2 stops34h 30m

Fri 1/11:55 pm -

2 stops31h 10m

Deal found 8/27

$2,166

One-way flights from Dulles Intl to Vientiane
Search for one-way flight options from Dulles Intl to Vientiane. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.

Sun 9/203:10 pm -

2 stops44h 00m

Deal found 8/26

$548

Wed 9/309:00 pm -

2 stops38h 10m

Deal found 8/25

$607

Mon 9/219:00 pm -

2 stops27h 00m

Deal found 8/25

$623

Wed 9/239:00 pm -

2 stops28h 40m

Deal found 8/26

$633

Fri 9/251:15 pm -

2 stops34h 45m

Deal found 8/26

$648

Thu 9/243:10 pm -

3 stops32h 25m

Deal found 8/26

$692

Find flight deals from Dulles Intl to Vientiane

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,179 (oojo)
One-way from	$548 (Trip.com)

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Vientiane Wattay flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Vientiane Wattay flights.

Search Deals

From Washington, D.C. Dulles Intl to Vientiane Wattay

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Vientiane Wattay

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Vientiane that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Sat 2/20

8:05 pm-1:05 pm

2 stops29h 00m

Vientiane Wattay

Sun 3/14

6:15 pm-4:55 pm

2 stops33h 40m

$1,323

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Thu 2/4

8:05 pm-1:05 pm

2 stops29h 00m

Vientiane Wattay

Thu 2/25

11:35 am-8:30 am

3 stops32h 55m

$1,333

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Fri 11/27

8:05 pm-11:15 am

2 stops27h 10m

Vientiane Wattay

Thu 12/10

7:30 am-3:55 pm

3 stops44h 25m

$1,339

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Wed 2/3

9:20 pm-6:55 pm

3 stops57h 35m

Vientiane Wattay

Wed 2/24

11:35 am-7:25 pm

3 stops43h 50m

$1,376

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Tue 10/20

9:00 pm-7:35 pm

3 stops35h 35m

Vientiane Wattay

Mon 11/23

11:35 am-3:55 pm

3 stops40h 20m

$1,503

Quickest round-trip

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Tue 12/29

9:55 am-12:25 am

2 stops26h 30m

Vientiane Wattay

Sat 2/27

12:15 am-8:35 pm

1 stop32h 20m

$1,830

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Sun 12/20

9:20 pm-1:05 pm

2 stops27h 45m

Vientiane Wattay

Sun 1/24

11:35 am-11:45 am

3 stops36h 10m

$2,084

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Thu 12/24

2:35 pm-1:05 pm

2 stops34h 30m

Vientiane Wattay

Fri 1/1

1:55 pm-9:05 am

2 stops31h 10m

$2,166

Cheapest one-way

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Wed 9/30

9:00 pm-10:10 pm

2 stops38h 10m

$607

Quickest one-way

Washington, D.C.Vientiane

IAD Washington, D.C. Dulles Intl - VTE Vientiane Wattay

IADVTE

Washington, D.C. Dulles Intl

Wed 9/23

9:00 pm-12:40 pm

2 stops28h 40m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/25

Showing 1-10 of 11 resultsSorted by cheapest first

Compare providers for flights from Dulles Intl to Vientiane

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Vientiane in August.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Vientiane flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Vientiane flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Vientiane flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Vientiane flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Vientiane flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Vientiane

Have a flexible travel schedule? Discover the best time to fly to Vientiane from Dulles Intl with our price prediction graph.

IAD-VTE

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

What airport do you fly into for flights to Vientiane from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Vientiane, you will be flying into Wattay. Vientiane Wattay (VTE) is just 2.8 mi from the center of the city. Wattay is the only Vientiane airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Vientiane Wattay from Washington, D.C. Dulles Intl on a regular basis.
Can I find deals for flights from Dulles Intl to Vientiane that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Vientiane flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Vientiane?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Vientiane.
Can I find deals for business class flights from Dulles Intl to Vientiane?
Yes. Cheapflights offers flight deals from Dulles Intl to Vientiane by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$548+ Cheap flights from Dulles Intl (IAD) to Vientiane (VTE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Vientiane with Cheapflights

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Cheap flight deals from Dulles Intl to Vientiane

Cheapest flights from Dulles Intl to VientianeExplore the most affordable flight options available from Dulles Intl to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 29, 2026.

Explore the most affordable flight options available from Dulles Intl to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 29, 2026.

Best flights from Dulles Intl to VientianeDiscover carefully curated flight deals from Dulles Intl to Vientiane that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.

Discover carefully curated flight deals from Dulles Intl to Vientiane that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.

Last-minute flights from Dulles Intl to VientianeDiscover last-minute flight deals from Dulles Intl to Vientiane. Data last updated August 29, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Vientiane. Data last updated August 29, 2026 and is based on user searches.

One-way flights from Dulles Intl to VientianeSearch for one-way flight options from Dulles Intl to Vientiane. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.

Search for one-way flight options from Dulles Intl to Vientiane. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.

Find flight deals from Dulles Intl to Vientiane

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Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Vientiane that are best for you.

Compare providers for flights from Dulles Intl to Vientiane

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Vientiane in August.

Best time to book a flight from Dulles Intl to Vientiane

Have a flexible travel schedule? Discover the best time to fly to Vientiane from Dulles Intl with our price prediction graph.

Related info for your journey

What airport do you fly into for flights to Vientiane from Washington, D.C. Dulles Intl?

Can I find deals for flights from Dulles Intl to Vientiane that include hotel bookings?

How can I find direct flights from Dulles Intl to Vientiane?

Can I find deals for business class flights from Dulles Intl to Vientiane?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to Vientiane

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Search flights from Dulles Intl to Vientiane by cabin class

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Dulles Intl and Vientiane flights

Browse other Dulles Intl and Vientiane flight options. Last updated on August 29, 2026.

Other flights from Dulles Intl

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Cheapest flights from Dulles Intl to Vientiane
Explore the most affordable flight options available from Dulles Intl to Vientiane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 29, 2026.

Best flights from Dulles Intl to Vientiane
Discover carefully curated flight deals from Dulles Intl to Vientiane that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 29, 2026.

Last-minute flights from Dulles Intl to Vientiane
Discover last-minute flight deals from Dulles Intl to Vientiane. Data last updated August 29, 2026 and is based on user searches.

One-way flights from Dulles Intl to Vientiane
Search for one-way flight options from Dulles Intl to Vientiane. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.