Cheap Flights from Washington (IAD) to Khon Kaen (KKC)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Khon Kaen (KKC)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Washington to Khon Kaen (IAD-KKC)

Prices were available within the past 7 days and start at for one-way flights and $1,151 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Thu, Sep 4 - Mon, Sep 22
IAD
Washington
KKC
Khon Kaen
$1,151 Roundtrip, found 1 day ago
$1,151
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Thu, Sep 4 from Washington to Khon Kaen, returning Mon, Sep 22, priced at $1,151 found 1 day ago
Qatar Airways
Thu, Sep 4 - Mon, Sep 22
IAD
Washington
KKC
Khon Kaen
$1,154 Roundtrip, found 1 day ago
$1,154
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Thu, Sep 4 from Washington to Khon Kaen, returning Mon, Sep 22, priced at $1,154 found 1 day ago
Qatar Airways
Thu, Sep 4 - Mon, Sep 22
IAD
Washington
KKC
Khon Kaen
$1,156 Roundtrip, found 1 day ago
$1,156
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Thu, Sep 4 from Washington to Khon Kaen, returning Mon, Sep 22, priced at $1,156 found 1 day ago
Etihad Airways
Thu, Sep 4 - Mon, Sep 22
IAD
Washington
KKC
Khon Kaen
$1,161 Roundtrip, found 1 day ago
$1,161
Roundtrip
found 1 day ago
Select Etihad Airways flight, departing Thu, Sep 4 from Washington to Khon Kaen, returning Mon, Sep 22, priced at $1,161 found 1 day ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$1,586 Roundtrip, found 5 days ago
$1,586
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $1,586 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$1,589 Roundtrip, found 5 days ago
$1,589
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $1,589 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$1,682 Roundtrip, found 5 days ago
$1,682
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $1,682 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$1,684 Roundtrip, found 5 days ago
$1,684
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $1,684 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$1,893 Roundtrip, found 5 days ago
$1,893
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $1,893 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$1,896 Roundtrip, found 5 days ago
$1,896
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $1,896 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$2,039 Roundtrip, found 5 days ago
$2,039
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $2,039 found 5 days ago
Qatar Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$2,042 Roundtrip, found 5 days ago
$2,042
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $2,042 found 5 days ago
Etihad Airways
Tue, Aug 26 - Sat, Aug 30
IAD
Washington
KKC
Khon Kaen
$2,471 Roundtrip, found 5 days ago
$2,471
Roundtrip
found 5 days ago
Select Etihad Airways flight, departing Tue, Aug 26 from Washington to Khon Kaen, returning Sat, Aug 30, priced at $2,471 found 5 days ago
Flights from Washington (IAD) to Khon Kaen (KKC)
Origin airport
Washington Dulles Intl.
Destination airport
Khon Kaen
Roundtrip price
$1,150
Distance
8607 mi

Washington to Khon Kaen Flights

The cheapest times to fly from Washington to Khon Kaen

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

 

The best time to book a flight from Washington to Khon Kaen

Sunday is one of the best days to book for cheap flights from Washington to Khon Kaen: 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 Washington to Khon Kaen

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 Washington to Khon Kaen 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 Washington to Khon Kaen 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 Washington to Khon Kaen 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 Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC) cost?
Secure a cheap one-way flight or cheap return flight from $1,151 from Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC) 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 Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC)?
September is the least expensive month to fly from IAD to KKC. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from IAD to KKC. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC)?
You'll have to take a flight with a layover when traveling from Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from IAD to KKC?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC)?
To avoid potential delays on the Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC) route, aim to fly before 3 PM. Later flights are 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 Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC) last-minute?
Last-minute bookings from IAD to KKC are typically more expensive. To secure the best prices, start searching for flights early. That said, if you can play around with your travel dates, it's possible to find a cheap fare right before your journey.
Is it cheaper to book an IAD to KKC flight and hotel package?
Opting for an IAD to KKC flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Khon Kaen Airport (KKC)?
If you booked your IAD to KKC flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Explore a world of travel with Expedia

*Available to One Key members.