Flight Udon Thani - Nha Trang prices from $143.75

Bamboo Airways is a Vietnamese airline that was founded in 2017 and began operations in 2019. It is owned by the FLC Group, a Vietnamese conglomerate that operates in real estate, hospitality, and other industries. Bamboo Airways operates domestic and international flights to destinations in Asia, Europe, and North America. The airline has a fleet of modern aircraft, including Airbus A320s, A321neos, and Boeing 787-9 Dreamliners. Bamboo Airways aims to provide affordable and high-quality air travel to customers, with a focus on safety, comfort, and convenience. The airline has received several awards for its services, including the "Best New Airline" award at the 2019 Asia-Pacific Aviation Awards.

Thai AirAsia is a low-cost airline based in Bangkok, Thailand. It is a subsidiary of AirAsia, a Malaysian low-cost airline. Thai AirAsia operates domestic and international flights to various destinations in Asia, including China, India, Japan, South Korea, and Vietnam. The airline has a fleet of Airbus A320 aircraft and offers a range of services, including in-flight meals, seat selection, and baggage allowance. Thai AirAsia is known for its affordable fares and has won several awards for its services, including the World's Best Low-Cost Airline award at the Skytrax World Airline Awards in 2019.

Thai Airways is the national flag carrier airline of Thailand, headquartered in Bangkok. It was founded in 1960 and operates a fleet of over 80 aircraft, serving more than 80 destinations in 37 countries. Thai Airways is a member of the Star Alliance and has codeshare agreements with several other airlines. The airline offers a range of classes, including Royal First Class, Royal Silk Class, and Economy Class. Thai Airways is known for its high-quality service, including its in-flight meals and entertainment options. The airline has won numerous awards for its service, including the Skytrax World Airline Awards for Best Economy Class Onboard Catering and Best Airline Lounge Spa Facility.

Thai Lion Air is a low-cost airline based in Bangkok, Thailand. It was founded in 2013 as a joint venture between Lion Air, a leading Indonesian airline, and Thai investors. The airline operates domestic and international flights to destinations across Asia, including China, India, Indonesia, Malaysia, Myanmar, Singapore, and Vietnam. Thai Lion Air's fleet consists of modern Airbus A330 and Boeing 737 aircraft, and the airline offers a range of services and amenities to its passengers, including in-flight meals, entertainment, and Wi-Fi. With its affordable fares and convenient routes, Thai Lion Air has become a popular choice for budget-conscious travelers in Southeast Asia.

VietJet Air is a low-cost airline based in Vietnam. It was founded in 2007 and began operations in 2011. The airline operates both domestic and international flights to destinations in Asia, including Thailand, Singapore, South Korea, Japan, and China. VietJet Air has a fleet of modern aircraft, including Airbus A320s and A321s. The airline is known for its affordable fares and has become a popular choice for budget-conscious travelers. VietJet Air has won several awards for its service, including the "Best Ultra Low-Cost Airline" award at the 2019 World Travel Awards.

Vietnam Airlines is the national flag carrier of Vietnam, headquartered in Hanoi. It was founded in 1956 and operates flights to 64 destinations in 17 countries, including Asia, Europe, and Australia. The airline has a fleet of over 100 aircraft, including Airbus A350, Boeing 787, and Boeing 777. Vietnam Airlines is a member of the SkyTeam alliance and has codeshare agreements with several airlines, including Delta Air Lines, Air France, and KLM. The airline offers a range of services, including economy, premium economy, and business class, as well as cargo services. Vietnam Airlines is committed to providing safe, reliable, and comfortable air travel to its passengers.

Nok Air is a low-cost airline based in Thailand. It was founded in 2004 and operates domestic and international flights to destinations in Southeast Asia, including Thailand, Myanmar, Vietnam, Cambodia, and China. The airline's fleet consists of Boeing 737-800 and ATR 72-500 aircraft, and it offers a range of services to its passengers, including in-flight meals, entertainment, and Wi-Fi. Nok Air is known for its colorful branding and fun, playful approach to air travel, with its planes featuring bright colors and cartoon characters. The airline has won several awards for its service and is a popular choice for budget-conscious travelers in the region.