Bangkok to Phnom Penh is one of Southeast Asia’s quickest international hops — barely over an hour in the air to Cambodia’s riverside capital, with its Royal Palace, buzzing markets and sobering history. It’s a competitive short-haul route flown by full-service and budget carriers alike, so fares stay reasonable year-round. This guide covers who flies non-stop, a fair return fare in baht, and the one big thing that changed in 2025: the airport you’ll now land at.
Route: Bangkok (Suvarnabhumi BKK / Don Mueang DMK) → Phnom Penh, Cambodia (now Techo International, KTI)
Distance: approximately 535 km (330 miles)
Non-stop flight time: about 1h 10m – 1h 15m
Direct flights: Yes — Thai Airways, Bangkok Airways, Thai AirAsia, Thai Vietjet, Cambodia Angkor Air (Air Cambodia) and Turkish Airlines all fly non-stop. One of the shortest international routes in the region. Every fare we found is direct, from ฿4,533 return on Thai Vietjet.
Fares from Bangkok to Phnom Penh (THB)
With several airlines competing on such a short sector, fares rarely spike the way long-haul routes do. Prices firm up around Khmer New Year, the Water Festival (Bon Om Touk) and the year-end holidays, and ease off in the low-season middle months. The figures below are typical economy return fares in baht — budget carriers set the floor, while Thai Airways and Bangkok Airways sit higher with bags and service included.
| Month | Demand | What to expect |
|---|---|---|
| January | — | high |
| February | — | medium-high |
| March | — | medium |
| April | — | medium-high (Khmer & Thai New Year) |
| May | — | medium |
| June | — | low |
| July | — | low-medium |
| August | — | medium |
| September | — | low |
| October | — | low-medium |
| November | — | medium (Water Festival) |
| December | — | very high |
Checked against every return fare on sale as we write, the budget fares sit in a tight band: the floor is ฿4,533 on Thai Vietjet, the median ฿4,749, and four fares in five are under ฿5,106. So a return in the high 4,000s is simply the going rate, a strong one is under about ฿4,739, and there is nothing at 4,000 to wait for. The next tier up is a different product: Cambodia Angkor Air at ฿6,541–฿6,727 and Turkish Airlines at ฿6,389–฿7,627, with checked bags included.
Airlines on this route
Non-stop (about 1¼ hours):
- Thai Airways — the flag carrier, from Suvarnabhumi (BKK); full service with meals and checked baggage.
- Bangkok Airways — the self-styled “boutique airline”, from Suvarnabhumi, with lounge access on many fares and generous bags.
- Thai Vietjet — the cheapest fares we found, ฿4,533–฿4,757 return, and mostly from Suvarnabhumi rather than Don Mueang, which is worth knowing if you are connecting.
- Thai AirAsia — low-cost, from Don Mueang (DMK); two thirds of the cheapest seats at ฿4,716–฿5,133.
- Turkish Airlines — sells the Bangkok–Phnom Penh sector non-stop from Suvarnabhumi as part of its Istanbul service, ฿6,389–฿7,627.
- Cambodia Angkor Air (Air Cambodia) — Cambodia’s national carrier, non-stop from Suvarnabhumi at ฿6,541–฿6,727.
Because the flight is so short, the choice comes down to price versus comfort. Budget carriers win on fare, but once you add a checked bag their all-in price often lands close to Bangkok Airways or Thai Airways — both of which include the bag and a meal on this route.
When to book & how to save
- Book 3–8 weeks ahead for the best short-haul fares; prices climb in the final two weeks and around the festivals.
- Dodge the peaks: Khmer New Year (mid-April), the November Water Festival and the year-end holidays are the busiest and dearest.
- Compare all-in, not headline: add your bag to a budget fare before comparing — the full-service carriers often close the gap once baggage is included.
- Mind the Bangkok airport: budget flights leave from Don Mueang (DMK) and full-service from Suvarnabhumi (BKK) — they’re on opposite sides of the city.
- Have your Cambodia e-visa ready: most visitors need one, and sorting it online before you fly saves time on arrival.
Arriving in Phnom Penh
Since September 2025, flights land at the brand-new Techo International Airport (KTI), about 20 km south of the city, which has replaced the old Phnom Penh International (Pochentong, PNH) as the capital’s main gateway. A metered taxi or ride-hail into the centre takes 30–50 minutes depending on traffic and costs roughly ฿400–฿700 equivalent in US dollars or riel; shuttle-bus links into town are being expanded as the airport ramps up. US dollars are widely accepted alongside the riel, so you don’t need to change much money on arrival.
Frequently asked questions
How long is the flight from Bangkok to Phnom Penh?
The non-stop flight takes about 1 hour 10 minutes to 1 hour 15 minutes, making it one of the shortest international routes in Southeast Asia. Add boarding and taxi time and you’re still door-to-door in well under half a day, even factoring in the airport transfers at both ends.
Are there direct flights from Bangkok to Phnom Penh?
Yes, plenty. Thai Airways, Bangkok Airways, Thai AirAsia, Thai Vietjet, Cambodia Angkor Air (Air Cambodia) and Turkish Airlines all fly non-stop. With several carriers competing, there are departures throughout the day and fares stay competitive — every one of the hundred cheapest fares we found is direct, from ฿4,533 return.
How much does it cost to fly from Bangkok to Phnom Penh?
A typical budget economy return runs about ฿4,739–฿5,106, median ฿4,749, with the Thai Vietjet and Thai AirAsia fares spanning ฿4,533–฿5,133. Booked early, budget carriers start at ฿4,533. Bag-included and full-service tickets are the next tier — ฿6,389–฿7,627 — and the December peak pushes both bands up.
What is the cheapest month to fly from Bangkok to Phnom Penh?
June and September are usually the cheapest. In the dates we could price, returns started at ฿4,533. Avoid December, Khmer New Year in mid-April and the November Water Festival, when demand and fares both rise.
Which airlines fly from Bangkok to Phnom Penh?
Non-stop, cheapest first in our fare data: Thai Vietjet (฿4,533–฿4,757, the floor, mostly from Suvarnabhumi rather than Don Mueang), Thai AirAsia (฿4,716–฿5,133, two thirds of the cheapest fares, all from Don Mueang), Turkish Airlines (฿6,389–฿7,627, from Suvarnabhumi) and Cambodia Angkor Air (฿6,541–฿6,727). Thai Airways and Bangkok Airways also fly it full service from Suvarnabhumi but neither appeared among the cheapest when we checked. The budget carriers do set the lowest fares.
Which airport do I fly into in Phnom Penh?
You now land at the new Techo International Airport (KTI), about 20 km south of the city, which took over as Phnom Penh’s main airport in September 2025 from the older Phnom Penh International (Pochentong, PNH). Check your booking, as some older listings still show the previous airport.
How far in advance should I book Bangkok to Phnom Penh flights?
Aim for 3 to 8 weeks ahead. It’s a short, well-served route, so there’s no need to book months out, but the cheapest seats do sell first and prices climb in the last fortnight and around Cambodian and Thai holidays.
Is it cheaper to fly on weekdays?
Often, yes. Tuesday-to-Thursday departures usually undercut weekend travel, and because the sector is so short even a small fare difference is worth chasing. Flexible dates plus an early booking are the surest way to the lowest price.
Fare guidance based on aifly.one deal tracking and current airline schedules; last reviewed July 2026. Prices are indicative economy returns and change with demand — always check the live fare before booking.
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