Roundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 21WedOct 30Fri
9 nights27°
Roundtrip fare
฿4,380
Steal
฿5,480-20%฿1,100 below avg
Thai VietJet AirCheapest Time to Fly to Phnom Penh
Compare the cheapest months to fly from Bangkok to Phnom Penh in THB. See separate one-way and roundtrip fare ranges, sample sizes and current deals.
One way from ฿2,071
Roundtrip from ฿4,380
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Current deals to Phnom Penh · Roundtrip
Outbound and return flights together in one total fare · Available fares behind the monthly comparison
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 23FriOct 30Fri
7 nights27°
Roundtrip fare
฿4,380
Steal
฿5,480-20%฿1,100 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 21WedNov 1Sun
11 nights27°
Roundtrip fare
฿4,388
Steal
฿5,480-20%฿1,092 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 21WedOct 31Sat
10 nights27°
Roundtrip fare
฿4,388
Steal
฿5,480-20%฿1,092 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 23FriNov 1Sun
9 nights27°
Roundtrip fare
฿4,388
Steal
฿5,480-20%฿1,092 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 23FriOct 31Sat
8 nights27°
Roundtrip fare
฿4,388
Steal
฿5,480-20%฿1,092 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 23FriOct 29Thu
6 nights27°
Roundtrip fare
฿4,388
Steal
฿5,480-20%฿1,092 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 23FriOct 28Wed
5 nights27°
Roundtrip fare
฿4,404
Steal
฿5,480-20%฿1,076 below avg
Thai VietJet AirRoundtrip
Holiday
🇰🇭Phnom Penh
Cambodia
City
Oct 18SunOct 30Fri
12 nights27°
Roundtrip fare
฿4,417
Steal
฿5,480-19%฿1,063 below avg
Thai VietJet AirRoundtrip
🇰🇭Phnom Penh
Cambodia
City
Oct 25SunOct 30Fri
5 nights27°
Roundtrip fare
฿4,417
Steal
฿5,480-19%฿1,063 below avg
Thai VietJet AirMonthly fare comparison
Lowest and average fares with sample sizes.
Monthly fare comparison
Lowest and average fares with sample sizes.
January 2027
645 fares
One way31
- Min
- ฿2,075
- Avg
- ฿2,353
Roundtrip614
- Min
- ฿4,622
- Avg
- ฿5,440
February 2027
576 fares
One way28
- Min
- ฿2,075
- Avg
- ฿2,180
Roundtrip548
- Min
- ฿4,622
- Avg
- ฿5,250
March 2027
540 fares
One way26
- Min
- ฿2,072
- Avg
- ฿2,261
Roundtrip514
- Min
- ฿4,652
- Avg
- ฿5,514
September 2026
469 fares
One way21
- Min
- ฿2,206
- Avg
- ฿2,804
Roundtrip448
- Min
- ฿4,684
- Avg
- ฿5,799
October 2026
512 fares
One way31
- Min
- ฿2,085
- Avg
- ฿2,200
Roundtrip481
- Min
- ฿4,380
- Avg
- ฿5,143
November 2026
582 fares
One way30
- Min
- ฿2,075
- Avg
- ฿2,180
Roundtrip552
- Min
- ฿4,448
- Avg
- ฿4,993
December 2026
611 fares
One way31
- Min
- ฿2,071
- Avg
- ฿2,792
Roundtrip580
- Min
- ฿4,433
- Avg
- ฿6,206
How to read the monthly fare data
- Compare one-way prices only with the one-way series and roundtrip prices only with the roundtrip series.
- Use the fare count to judge how much current evidence sits behind a monthly average.
- Treat the lowest fare as an observed option, not a guaranteed future price.
- Open a month to compare exact departure dates, airlines, stops and travel time.
FAQ: Cheapest Time to Fly to Phnom Penh
Which month has the cheapest one-way flights from Bangkok to Phnom Penh?
October currently has the lowest observed one-way fare, from ฿2,071. This compares one-way fares only.
Which month has the cheapest roundtrip flights from Bangkok to Phnom Penh?
October currently has the lowest observed roundtrip fare, from ฿4,380. This compares complete roundtrips only.
How are the cheapest months for Phnom Penh calculated?
We compare current observed fares from Bangkok by departure month. One-way and roundtrip prices stay in separate series, and each monthly table shows its available fare count.
Does the cheapest month guarantee the same price later?
No. It identifies the lowest fare in the current dataset, not a future price guarantee. Confirm the final itinerary total, airports, baggage and availability before booking.
Quick Answers
Which month is cheapest one way?
October currently starts at ฿2,071, the lowest observed one-way fare among the available months.
Which month is cheapest roundtrip?
October currently starts at ฿4,380, the lowest observed complete-roundtrip fare.
What does this comparison include?
Each month shows the lowest and average observed itinerary total plus the number of available fares in that series.
Can one-way and roundtrip prices be compared?
No. They represent different products, so this page keeps their prices, averages and sample sizes separate.