$770 Cheap Flights from Phoenix (PHX) to Udon Thani (UTH)

View $770 flight on Fri, Nov 28, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Udon Thani (UTH-Udon Thani Intl.)

Cheap Flights from Phoenix to Udon Thani (PHX-UTH)

Prices were available within the past 7 days and start at $770 for one-way flights and $11,660 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$11,660 Roundtrip, found 16 hours ago
$11,660
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $11,660 found 16 hours ago
United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$11,665 Roundtrip, found 16 hours ago
$11,665
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $11,665 found 16 hours ago
United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$13,860 Roundtrip, found 16 hours ago
$13,860
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $13,860 found 16 hours ago
United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$13,865 Roundtrip, found 16 hours ago
$13,865
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $13,865 found 16 hours ago
United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$13,866 Roundtrip, found 16 hours ago
$13,866
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $13,866 found 16 hours ago
United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$13,871 Roundtrip, found 16 hours ago
$13,871
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $13,871 found 16 hours ago
United
Thu, Jul 9 - Fri, Jul 31
PHX
Phoenix
UTH
Udon Thani
$13,873 Roundtrip, found 16 hours ago
$13,873
Roundtrip
found 16 hours ago
Select United flight, departing Thu, Jul 9 from Phoenix to Udon Thani, returning Fri, Jul 31, priced at $13,873 found 16 hours ago

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH) cost?
Secure a cheap one-way flight from $770 or cheap return flight from $11,660 from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH)?
The cheapest month to fly from PHX to UTH is July, when there's less demand. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PHX to UTH flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH)?
There aren't any daily nonstop flights departing from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from PHX to UTH?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a number of factors, such as the airline 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 Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH)?
To touch down at Udon Thani Intl. Airport (UTH) without delays, select a flight that takes off from Sky Harbor Intl. Airport (PHX) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH) last-minute?
Booking your plane ticket from PHX to UTH just before your journey is usually more expensive. But if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a PHX to UTH flight and hotel package?
You can save money by securing a PHX to UTH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your preferred flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Udon Thani Intl. Airport (UTH)?
In most instances, you can modify or cancel your PHX to UTH flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Udon Thani Intl.
Roundtrip price
$11,660
Distance
8242 mi

Book with confidence

Phoenix to Udon Thani Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Phoenix 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 Phoenix 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 Phoenix to Udon Thani in 2025. You can also book with separate airlines for your outbound and return journeys, from $770 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 Phoenix 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 Phoenix 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.

 

Phoenix to Udon Thani Flights

Explore a world of travel with Expedia

*Available to One Key members.