Cheap Flights from Washington (DCA) to Chiang Rai (CEI)

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI)

Cheap Flights from Washington to Chiang Rai (DCA-CEI)

Prices were available within the past 7 days and start at for one-way flights and $11,938 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$11,938 Roundtrip, found 3 days ago
$11,938
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $11,938 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$12,035 Roundtrip, found 3 days ago
$12,035
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $12,035 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$14,109 Roundtrip, found 3 days ago
$14,109
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $14,109 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$14,111 Roundtrip, found 3 days ago
$14,111
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $14,111 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$14,113 Roundtrip, found 3 days ago
$14,113
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $14,113 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$14,114 Roundtrip, found 3 days ago
$14,114
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $14,114 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$14,116 Roundtrip, found 3 days ago
$14,116
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $14,116 found 3 days ago
United
Sat, Nov 8 - Mon, Dec 8
DCA
Washington
CEI
Chiang Rai
$14,117 Roundtrip, found 3 days ago
$14,117
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from Washington to Chiang Rai, returning Mon, Dec 8, priced at $14,117 found 3 days ago

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI) cost?
Secure a cheap one-way flight or cheap return flight from $11,938 from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI) 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 Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI)?
November is the most affordable month to fly from DCA to CEI. Timing your trip outside of the busy season is often the key to finding better fares.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DCA to CEI flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI)?
You'll need to catch a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from DCA to CEI?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI)?
Opt for a flight from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI) last-minute?
Booking your flight from DCA to CEI shortly before your journey is generally more expensive. However, if you're flexible with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a DCA to CEI flight and hotel package?
Compared with arranging flights and hotels separately, booking a DCA to CEI flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place takes the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Chiang Rai Intl. Airport (CEI)?
If you reserved your DCA to CEI flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Chiang Rai Intl.
Roundtrip price
$11,938
Distance
8368 mi

Book with confidence

Washington to Chiang Rai Flights

The cheapest times to fly from Washington to Chiang Rai

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

 

The best time to book a flight from Washington to Chiang Rai

Sunday is one of the best days to book for cheap flights from Washington to Chiang Rai: 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 Chiang Rai

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 Chiang Rai 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 Chiang Rai 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 Chiang Rai 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 Chiang Rai Flights

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*Available to One Key members.