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Ontario to Chiang Mai

  • ONT, United States – CNX, Thailand
  • Delta, Korean Air
  • Economy
Chiang Mai

Photo: Nopparuj Lamaikul / Unsplash

$766
Round trip, in USD
via FlightHub · travel agency
Korean Air direct: $786
Checked
One ticket on more than one airline.
DepartsJan 25, 2027
ReturnsFeb 1, 2027

Compare links search this route and dates. Prices there can differ.

Follow Ontario to Chiang Mai

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$0.05
Cost per mile
16,132
Miles

Flight segments

ONT to SEA · DL · DL 3816
SEA to ICN · KE · KE 42
ICN to CNX · KE · KE 683
CNX to ICN · KE · KE 684
ICN to SEA · KE · KE 47
SEA to ONT · DL · DL 3884

Available dates

Prices in USD. Each option opens its own dates on Google Flights.

Oldest price check:

Available flight dates and booking prices
Departs Returns Airline Price Checked Booking link
Jan 23, 2027 Jan 30, 2027 — $1083 View flights
Jan 24, 2027 Jan 31, 2027 — $1153 View flights
Jan 25, 2027 Feb 1, 2027 Delta, Korean Air $766 Lowest View flights
Jan 26, 2027 Feb 2, 2027 — $952 View flights
Jan 27, 2027 Feb 3, 2027 — $1055 View flights

This is an economy deal to Chiang Mai from Ontario on Delta, Korean Air for Jan 25, 2027 – Feb 1, 2027.

Priced at $766 round trip. The route covers 16,132 miles round trip.

Chiang Mai, set amid the green foothills of northern Thailand, draws travelers with its mix of historic charm, mountain scenery, and a slower pace than Bangkok or the southern beach resorts. The old city is ringed by remnants of its ancient walls and moat, and within it you’ll find some of the country’s most atmospheric temples, including Wat Phra Singh and Wat Chedi Luang. Beyond the center, the city’s appeal broadens into lively markets, leafy cafés, artisan studios, and easy access to day trips for trekking, waterfalls, and hill-tribe villages, making it a strong choice for both culture-focused and outdoors-minded visitors.

The best time to visit is generally from November to February, when temperatures are cooler and skies are often clearer, ideal for sightseeing and exploring on foot. The hot season runs from roughly March to May, while the rainy season from June to October brings heavier showers but also lush landscapes and fewer crowds. Food is another major draw: Chiang Mai is known for northern Thai specialties such as khao soi, a rich coconut curry noodle soup, along with sai ua sausage, sticky rice, and a vibrant street-food scene. Neighborhoods like the Old City, Nimmanhaemin, and the riverside each offer a different mood, from heritage and temples to modern dining and nightlife, giving the city broad appeal for a first visit or a longer stay.

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