฿4,000 Cheap Flights from Seoul (SEL) to Chiang Rai (CEI)

View ฿4,000 flight on Tue, 25 Nov 2025Opens in a new window

Popular airlines from Seoul to Chiang Rai (CEI-Chiang Rai Intl.)

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Cheap Flights from Seoul (SEL) to Chiang Rai (CEI)

Prices were available within the past 7 days and start at ฿4,000 for one-way flights and ฿20,375 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai AirAsia X
Tue, 30 Dec - Sat, 3 Jan
ICN
Seoul
CEI
Chiang Rai
฿20,375 Return, found 4 days ago
฿20,375
Return
found 4 days ago
Select Thai AirAsia X flight, departing Tue, 30 Dec from Seoul to Chiang Rai, returning Sat, 3 Jan, priced at ฿20,375 found 4 days ago
Thai AirAsia X
Tue, 30 Dec - Sat, 3 Jan
ICN
Seoul
CEI
Chiang Rai
฿20,793 Return, found 4 days ago
฿20,793
Return
found 4 days ago
Select Thai AirAsia X flight, departing Tue, 30 Dec from Seoul to Chiang Rai, returning Sat, 3 Jan, priced at ฿20,793 found 4 days ago
Thai Airways International
Tue, 30 Dec - Sat, 3 Jan
ICN
Seoul
CEI
Chiang Rai
฿30,014 Return, found 4 days ago
฿30,014
Return
found 4 days ago
Select Thai Airways International flight, departing Tue, 30 Dec from Seoul to Chiang Rai, returning Sat, 3 Jan, priced at ฿30,014 found 4 days ago
Thai Airways International
Tue, 30 Dec - Sat, 3 Jan
ICN
Seoul
CEI
Chiang Rai
฿30,539 Return, found 4 days ago
฿30,539
Return
found 4 days ago
Select Thai Airways International flight, departing Tue, 30 Dec from Seoul to Chiang Rai, returning Sat, 3 Jan, priced at ฿30,539 found 4 days ago
Thai Airways International
Tue, 30 Dec - Sat, 3 Jan
ICN
Seoul
CEI
Chiang Rai
฿31,318 Return, found 4 days ago
฿31,318
Return
found 4 days ago
Select Thai Airways International flight, departing Tue, 30 Dec from Seoul to Chiang Rai, returning Sat, 3 Jan, priced at ฿31,318 found 4 days ago
Thai Airways International
Tue, 30 Dec - Sat, 3 Jan
ICN
Seoul
CEI
Chiang Rai
฿31,838 Return, found 4 days ago
฿31,838
Return
found 4 days ago
Select Thai Airways International flight, departing Tue, 30 Dec from Seoul to Chiang Rai, returning Sat, 3 Jan, priced at ฿31,838 found 4 days ago

Frequently asked questions

How much is a flight from Seoul (SEL-All Airports) to Mae Fah Luang - Chiang Rai Intl. Airport?
Round-trip journeys between Seoul (SEL-All Airports) and Chiang Rai Intl. Airport (CEI) start from ฿20,375. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seoul (SEL-All Airports) to Mae Fah Luang - Chiang Rai Intl. Airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Seoul (SEL-All Airports) to CEI that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seoul (SEL-All Airports) to Chiang Rai Intl. Airport (CEI) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seoul (SEL-All Airports) to CEI?
Expect to be cruising at altitude for a while, as the flight distance between South Korea and Chiang Rai is 3,300 kilometres. Put together a playlist of your favourite podcasts before you leave home to stay entertained during your journey.
Which airlines fly direct from Seoul (SEL-All Airports) to Chiang Rai Intl. Airport (CEI)?
Direct flights aren't available, so you'll have to make at least one stop between Seoul (SEL-All Airports) and Chiang Rai Intl. Airport (CEI). Take advantage of the layover time to stretch your legs and freshen up.
Are Seoul (SEL-All Airports) to Chiang Rai Intl. Airport (CEI) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Seoul (SEL-All Airports) to Mae Fah Luang - Chiang Rai Intl. Airport can be hit-or-miss. You might be lucky and score a bargain, but you could also miss out completely! If you'd rather start your trip planning ahead of time, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines release their prices that far in advance. Our advice? Check back often as prices are updated frequently.

Travel information

Travel information

Origin airport
Incheon Intl.
Destination airport
Chiang Rai Intl.
Return price
฿20,374
Distance
3201 km

Book with confidence

Book with confidence

Incheon to Chiang Rai Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Incheon to Chiang Rai will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Chiang Rai.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEL to CEI flights that won’t make your bank account wince. Ready to temporarily leave behind Incheon for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to CEI with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Incheon to Chiang Rai Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

Seoul Airports

Seoul

Incheon Intl. to Chiang Rai
฿20,374.05
*Available to Expedia members.