Cheap Flights from Washington (IAD) to Udon Thani (UTH)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Udon Thani (UTH-Udon Thani Intl.)

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Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH) cost?
Grab a cheap one-way flight or cheap return flight from Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH)?
The cheapest month to fly from IAD to UTH is , when there's less demand. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IAD to UTH flight.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to UTH?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a number of factors, including the carrier and season.*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 Udon Thani Intl. Airport (UTH)?
To arrive at Udon Thani Intl. Airport (UTH) on time, select a flight that takes off from Washington Dulles Intl. Airport (IAD) 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 Washington Dulles Intl. Airport (IAD) to Udon Thani Intl. Airport (UTH) last-minute?
Holding off until just before your departure to book a ticket from IAD to UTH often results in higher prices. While you may find some last-minute deals, there's no guarantee. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book an IAD to UTH flight and hotel package?
Booking an IAD to UTH flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our impressive range of accommodations and then add flights, activities 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 Udon Thani Intl. Airport (UTH)?
It's generally possible to reschedule or cancel your IAD to UTH flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Udon Thani Intl.
Distance
8543 mi

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Washington to Udon Thani Flights

The cheapest times to fly from Washington to Udon Thani

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

 

The best time to book a flight from Washington to Udon Thani

Sunday is one of the best days to book for cheap flights from Washington to Udon Thani: 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 Udon Thani

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 Udon Thani 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 Udon Thani 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 Udon Thani 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.

 

Washington to Udon Thani Flights

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