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Cheap flights from Washington, D.C. to Vientiane from $602

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Vientiane departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Washington, D.C. to Vientiane

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:00 pm - 7:45 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
35h 45m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:30 pm - 3:40 pmVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
30h 10m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,184Multiple Airlines
Tue, Sep 29 - Fri, Oct 23
Multiple Airlines Logo
9:00 pm - 7:45 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
35h 45m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:30 pm - 3:40 pmVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
37h 10m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,201Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
9:00 pm - 12:40 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
28h 40m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:30 pm - 3:40 pmVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
30h 10m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,211Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:05 pm - 7:45 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
35h 40m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:35 am - 8:30 amVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
36h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,212Multiple Airlines
Fri, Nov 27 - Thu, Dec 10
Multiple Airlines Logo
8:05 pm - 1:05 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
29h 00m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:35 am - 3:55 pmVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
44h 20m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,217Multiple Airlines
Mon, Nov 9 - Wed, Feb 10
Multiple Airlines Logo
8:05 pm - 1:05 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
29h 00m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:35 am - 8:30 amVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
36h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,250Multiple Airlines
Fri, Nov 27 - Thu, Dec 10
Multiple Airlines Logo
9:00 pm - 12:40 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
28h 40m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:20 am - 3:40 pmVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
39h 20m3 stops Phnom Penh Techo Intl Ho Chi Minh City Doha Hamad Intl
$1,286Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
1:15 pm - 10:10 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
45h 55m2 stops Incheon Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
6:20 pm - 11:05 amVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
27h 45m2 stops Bangkok Suvarnabhumi Incheon Intl
$1,295Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Multiple Airlines Logo
9:00 pm - 12:40 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
28h 40m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:20 am - 8:45 amVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
32h 25m3 stops Phnom Penh Techo Intl Ho Chi Minh City Doha Hamad Intl
$1,323Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
11:05 am - 12:40 pmIAD  Washington, D.C. Dulles Intl-VTE Vientiane Wattay
38h 35m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
11:20 am - 3:40 pmVTE  Vientiane Wattay-IAD Washington, D.C. Dulles Intl
39h 20m3 stops Phnom Penh Techo Intl Ho Chi Minh City Doha Hamad Intl
$1,331Multiple Airlines
Tue, Sep 29 - Fri, Oct 23

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Customize your flight search to find flights from Washington, D.C. to Vientiane that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Vientiane that are best for you.

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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

Tue 9/29

9:00 pm-7:45 pm

2 stops35h 45m

Vientiane Wattay

Fri 10/23

8:30 pm-3:40 pm

2 stops30h 10m

$1,184

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Mon 9/28

9:00 pm-7:45 pm

2 stops35h 45m

Vientiane Wattay

Mon 10/5

1:30 pm-3:40 pm

2 stops37h 10m

$1,201
Quickest round-trip

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Mon 9/14

9:00 pm-12:40 pm

2 stops28h 40m

Vientiane Wattay

Mon 9/21

8:30 pm-3:40 pm

2 stops30h 10m

$1,211

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-7:45 pm

2 stops35h 40m

Vientiane Wattay

Thu 12/10

7:35 am-8:30 am

2 stops36h 55m

$1,212

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Mon 11/9

8:05 pm-1:05 pm

2 stops29h 00m

Vientiane Wattay

Wed 2/10

7:35 am-3:55 pm

2 stops44h 20m

$1,217

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-1:05 pm

2 stops29h 00m

Vientiane Wattay

Thu 12/10

7:35 am-8:30 am

2 stops36h 55m

$1,250

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Mon 9/28

9:00 pm-12:40 pm

2 stops28h 40m

Vientiane Wattay

Mon 10/5

11:20 am-3:40 pm

3 stops39h 20m

$1,286

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Sat 9/26

1:15 pm-10:10 pm

2 stops45h 55m

Vientiane Wattay

Sat 10/3

6:20 pm-11:05 am

2 stops27h 45m

$1,295

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Mon 9/14

9:00 pm-12:40 pm

2 stops28h 40m

Vientiane Wattay

Mon 9/21

11:20 am-8:45 am

3 stops32h 25m

$1,323

Washington, D.C.Vientiane

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

IADVTE

Washington, D.C. Dulles Intl

Tue 9/29

11:05 am-12:40 pm

2 stops38h 35m

Vientiane Wattay

Fri 10/23

11:20 am-3:40 pm

3 stops39h 20m

$1,331

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Vientiane from

How to get the cheapest flight ticket from Washington, D.C. to Vientiane

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Vientiane?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Vientiane you fly into. For example, flying from Washington, D.C. to Vientiane takes 26h 15m on average. On the other hand, flying from Baltimore to Vientiane takes 36h 10m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When to book flights from Washington, D.C. to Vientiane

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Vientiane according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Vientiane (WAS to VTE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Vientiane

Fastest flight time

25h 50m

Direct flights

None
The fastest flight from Washington, D.C. to Vientiane takes 25h 50m
There are no direct flights from Washington, D.C. to Vientiane. There are no popular flight routes from Washington, D.C. to Vientiane.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Vientiane

  • How far is Washington, D.C. to Vientiane Wattay by plane?

    Washington, D.C. and Vientiane Wattay are 8501.3 mi apart from one another. By plane, this route typically takes 25h 50m.

  • When did momondo last update prices for flights from Washington, D.C. to Vientiane Wattay Airport?

    Prices for flights from Washington, D.C. to Vientiane Wattay Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Vientiane Wattay Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Vientiane Wattay Airport.

  • What documentation or ID do you need to fly to Vientiane Wattay Airport?

    The required travel and health documents for your Vientiane Wattay Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vientiane Wattay Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Vientiane?

Finding the right flight to Vientiane from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Vientiane quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Vientiane with flexible booking policies on momondo?

Yes. All flights to Vientiane from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Vientiane?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Vientiane.

I’m not ready to book a flight from Washington, D.C. to Vientiane right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Vientiane, momondo offers a useful price alert feature which will track prices for flights to Vientiane from Washington, D.C. and alert you when they change.

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