Fastest€36.72
- Cambodia Angkor Air (K6) CA873506:0646m06:52Siem Reap SAIPhnom Penh KTI
Door to door 3h 56mCO2 58.3 kgChanges 0Fixed, no changes
Siem Reap to Phnom Penh flight
Flights from Siem Reap to Phnom Penh start at €33.77 and take 3h 56m at their fastest.
The Flights from Siem Reap to Phnom Penh starts at €33.77 and takes 3h 56m door to door, run by 1 operator over 237 km, with around 2 departures a day. Fares bottom out about 30 days before departure.
- 3h 56mDoor to door
- 46mMoving
- €33.77From
- 58.3 kgCO2
The cheapest and the fastest on October 4, 2026
Two journeys we can sell today, with the service number each operator files them under.
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
| Cambodia Angkor Air (K6) | €31.41 | 3h 53m | 740 km/h | Fixed fare | Not published |
Phnom Penh sits on the water, which usually settles which side of town you want to wake up on. Rooms are not ours to sell.
Looking for somewhere to stay in Phnom Penh?
Sort by distance from Phnom Penh railway station and you can see which places are ten minutes on foot and which are not.
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When to book Siem Reap to Phnom Penh
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €15.0390 days
- €15.5860 days
- €14.4845 days
- €11.7330 days
- €13.9321 days
- €19.4314 days
- €18.337 days
- €18.883 days
- €24.931 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €11.73.
- How much it moves
- The gap between the cheapest and most expensive lead time is 113 percent. The most expensive point is €24.93, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €18.33Sun
- €19.97Mon
- €16.13Tue
- €18.87Wed
- €23.28Thu
- €21.08Fri
- €17.78Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Siem Reap
Air
- SAI
Phnom Penh
Air
- KTI
- PNH
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 40% of the services we sell on this corridor run through without a change. The remaining 60% involve one connection.
- How far it really runs
- The route covers 237 km against 231 km in a straight line, a detour of 1 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Ho Chi Minh City, Pursat, Kampong Chhnang. The gap between arriving and leaving is 52 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 18 percent chance of not being made on the timetable alone. Both legs are sold on one booking, so a missed connection is ours to fix and you are rebooked at no charge.
- First and last departure
- The first service of the day leaves Siem Reap at 06:06 and the last at 07:30, across 2 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Flights against the other ways to make this journey
The same corridor, door to door, with every mode that runs it.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 3h 56m | 46m | 3h 10m | €33.77 | 58.3 kg | 2 |
| Coach | 3h 59m | 3h 15m | 44m | €16.13 | 6.2 kg | 3 |
Questions about Siem Reap to Phnom Penh
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Siem Reap to Phnom Penh take?
The Flight from Siem Reap to Phnom Penh takes 3h 56m door to door, of which 46m is spent moving. The route runs 237 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Siem Reap to Phnom Penh cost?
The Flight from Siem Reap to Phnom Penh starts at €33.77 for one passenger, checked on September 13, 2026. A typical fare is €58.26. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Siem Reap to Phnom Penh?
1 operators run the Flight from Siem Reap to Phnom Penh: Cambodia Angkor Air (K6). Between them they file around 2 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Siem Reap to Phnom Penh use?
The Flight from Siem Reap to Phnom Penh leaves from Siem Reap SAI and arrives at Phnom Penh KTI. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
Is the Flight the best way from Siem Reap to Phnom Penh?
Traveling from Siem Reap to Phnom Penh by Coach costs €16.13 and takes 3h 59m door to door, against 3h 56m by Flight. Which is better depends on whether the money or the hours matter more on this trip. The comparison table on this page shows every mode side by side.
When should I book the Flight from Siem Reap to Phnom Penh?
Fares for the Flight from Siem Reap to Phnom Penh bottom out around 30 days ahead, at €11.73. The gap between the cheapest and most expensive lead time across the window is 113 percent, measured on September 13, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Siem Reap to Phnom Penh produce?
The Flight from Siem Reap to Phnom Penh produces about 58.3 kg of CO2 per passenger over 237 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Siem Reap to Phnom Penh on September 13, 2026: 237 km of route against 231 km in a straight line, 2 services a day, 1 operators, a cheapest fare of €33.77, and 3h 56m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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KTI is not in Phnom Penh, and the drive in from it is the part of the trip nobody plans. We sell the flight and stop at the terminal door.
Getting from KTI into Phnom Penh?
A price agreed before you fly, a driver at arrivals, and a car big enough for the bags.
Book a ride from KTI with Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.