
Popular airlines from Chiang Rai Intl. Airport (CEI) to Singapore Changi Airport (SIN)
- Thai Airways International
Thai Airways International
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Cheap Flights from Chiang Rai to Singapore (CEI-SIN)
Prices were available within the past 7 days and start at $172 for one-way flights and $360 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Origin airport | Chiang Rai Intl. |
Destination airport | Changi |
Airlines serving | Thai Airways International |
Roundtrip price | $359 |
Distance | 1314 mi |
Chiang Rai to Singapore Flights
The cheapest times to fly from Chiang Rai to Singapore
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 Chiang Rai to Singapore are during the month of May. You can find some of the cheapest flights from Chiang Rai to Singapore with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Chiang Rai to Singapore
Sunday is one of the best days to book for cheap flights from Chiang Rai to Singapore: 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 Chiang Rai to Singapore
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 Chiang Rai to Singapore in 2025. You can also book with separate airlines for your outbound and return journeys, from $172 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 Chiang Rai to Singapore 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 Chiang Rai to Singapore 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
Explore a world of travel with Expedia
Flights
- AirAsia
- Turkish Airlines
- EVA Airways
- Thai AirAsia
- Air Canada
- Thai Airways International
- Thai Lion Mantari
- Thai Vietjet
- Lufthansa
- Philippine Airlines Manila (MNL) to Singapore (SIN) flights
- Flights to Singapore
- Flights from Sukhothai
- Flights from Phrae
- Flights from Chiang Mai Intl.
- Flights from Mae Hong Son
- Flights from Lampang
- Flights from Nan
- Flights from Singapore (SIN) to Phuket (HKT)
- Flights from Chiang Rai (CEI) to Phuket (HKT)
- Flights from Singapore (SIN) to Los Angeles (LAX)
- Flights from Chiang Rai (CEI) to Los Angeles (LAX)
- Flights from Chiang Rai (CEI) to Bangkok (DMK)
- Flights from Singapore (SIN) to Kuala Lumpur (KUL)
- Flights from Chiang Rai (CEI) to Kuala Lumpur (KUL)
- Flights from Chiang Rai (CEI) to Luang Prabang (LPQ)
- Flights from Singapore (SIN) to Bangkok (BKK)
- Flights from Chiang Rai (CEI) to Bangkok (BKK)
- Flights from Chiang Rai (CEI) to Hong Kong (HKG)
- Flights from Singapore (SIN) to New York (JFK)
- Flights from San Diego (SAN) to Singapore (SIN)
- Flights from Bengaluru (BLR) to Singapore (SIN)
- Flights from Washington (IAD) to Singapore (SIN)
- Flights from Seattle (SEA) to Singapore (SIN)
- Flights from Houston (IAH) to Singapore (SIN)
- Flights from Accra (ACC) to Singapore (SIN)
- Flights from Colombo (CMB) to Singapore (SIN)
- Flights from Newark Liberty Intl. Airport (EWR) to Singapore (SIN)
- Flights from Kathmandu (KTM) to Singapore (SIN)
- Flights from Taipei (TPE) to Singapore (SIN)
- Flights from Los Angeles (LAX) to Singapore (SIN)
- Flights from New York (JFK) to Singapore (SIN)
- Flights from Miami (MIA) to Singapore (SIN)
- Flights from Dallas (DFW) to Singapore (SIN)
- Flights from Dhaka (DAC) to Singapore (SIN)
- Flights from New York (LGA) to Singapore (SIN)
- Flights from Manila (MNL) to Singapore (SIN)
- Flights from Seoul (ICN) to Singapore (SIN)
- Flights from Honolulu (HNL) to Singapore (SIN)
- Flights from Nairobi (NBO) to Singapore (SIN)
- Flights from Boston (BOS) to Singapore (SIN)
- Flights from Bangkok (DMK) to Singapore (SIN)
- Flights from Bangkok (BKK) to Singapore (SIN)
- Flights from Ho Chi Minh City (SGN) to Singapore (SIN)
- Flights from Phnom Penh (PNH) to Singapore (SIN)
- Flights from San Francisco (SFO) to Singapore (SIN)
- Flights from Chicago (ORD) to Singapore (SIN)
- Flights from Chiang Rai (CEI) to Mexico City (MEX)
- Flights from Singapore (SIN) to Manila (MNL)
- Flights from Chiang Rai (CEI) to Da Nang (DAD)
- Flights from Chiang Rai (CEI) to Denpasar (DPS)
- Flights from Singapore (SIN) to Denpasar (DPS)
- Flights from Chiang Rai (CEI) to Vientiane (VTE)
- Flights from Chiang Rai (CEI) to Hanoi (HAN)