Nonstop flight route between Chiang Rai, Thailand and Ontario (near Los Angeles), California, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from CEI to ONT:
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- About this route
- CEI Airport Information
- ONT Airport Information
- Facts about CEI
- Facts about ONT
- Map of Nearest Airports to CEI
- List of Nearest Airports to CEI
- Map of Furthest Airports from CEI
- List of Furthest Airports from CEI
- Map of Nearest Airports to ONT
- List of Nearest Airports to ONT
- Map of Furthest Airports from ONT
- List of Furthest Airports from ONT
About this route:
A direct, nonstop flight between Chiang Rai International Airport (CEI), Chiang Rai, Thailand and LA/Ontario International Airport (ONT), Ontario (near Los Angeles), California, United States would travel a Great Circle distance of 7,964 miles (or 12,817 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Chiang Rai International Airport and LA/Ontario International Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Chiang Rai International Airport and LA/Ontario International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CEI / VTCT | 
| Airport Names: | 
 | 
| Location: | Chiang Rai, Thailand | 
| GPS Coordinates: | 19°57'7"N by 99°52'58"E | 
| Operator/Owner: | Airports of Thailand | 
| Airport Type: | Public | 
| Elevation: | 1280 feet (390 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from CEI | 
| More Information: | CEI Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | ONT / KONT | 
| Airport Name: | LA/Ontario International Airport | 
| Location: | Ontario (near Los Angeles), California, United States | 
| GPS Coordinates: | 34°3'21"N by 117°36'3"W | 
| Area Served: | Ontario, California / Inland Empire, California | 
| Operator/Owner: | Los Angeles World Airports | 
| Airport Type: | Public | 
| Elevation: | 944 feet (288 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from ONT | 
| More Information: | ONT Maps & Info | 
Facts about Chiang Rai International Airport (CEI):
- The closest airport to Chiang Rai International Airport (CEI) is Tachilek Airport (THL), which is located 37 miles (59 kilometers) N of CEI.
- Chiang Rai International Airport (CEI) currently has only 1 runway.
- A new road which can be accessed by turning left upon exiting the airport also leads southbound to the city centre and is a less congested route, as it is not used by intercity buses heading north.
- In addition to being known as "Chiang Rai International Airport", another name for CEI is "ท่าอากาศยานแม่ฟ้าหลวง เชียงราย".
- Chiang Rai International Airport handled 1,053,863 passengers last year.
- The furthest airport from Chiang Rai International Airport (CEI) is Maria Reiche Neuman Airport (NZC), which is located 11,947 miles (19,227 kilometers) away in Nazca, Ica Region, Peru.
- It consists of a single passenger terminal which features a Dairy Queen outlet as well as a Black Canyon Coffee along with several other shops, with both the international and domestic arrivals and departures handled on the same floor but in separate areas.
Facts about LA/Ontario International Airport (ONT):
- LA/Ontario Airport is owned by the city of Los Angeles.
- The furthest airport from LA/Ontario International Airport (ONT) is Pierrefonds Airport (ZSE), which is located 11,460 miles (18,443 kilometers) away in Saint-Pierre, Réunion.
- LA/Ontario International Airport (ONT) has 2 runways.
- LA/Ontario International Airport handled 4,812,006 passengers last year.
- Remote parking is located on the east end of the airport.
- LA/Ontario has few noise restrictions/abatement rules, unlike other Southern California airports such as John Wayne Airport, Bob Hope Airport, Long Beach Airport, and San Diego International Airport, which all have very strict policies.
- In 1946, the Ontario Municipal Airport was renamed the "Ontario International Airport" because of the transpacific cargo flights originating from the facility.
- In 2013, LAWA offered to return the airport to local control for a purchase price of $474mm, which was rejected.
- Because of LA/Ontario International Airport's relatively low elevation of 944 feet, planes can take off or land at LA/Ontario International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The closest airport to LA/Ontario International Airport (ONT) is Chino Airport (CNO), which is located only 6 miles (10 kilometers) SSW of ONT.




