Roundtrip
Last Minute
🇦🇺Perth
Australia
City Beach
Sep 22TueOct 13Tue
20 nights15°
Roundtrip fare
฿11,646
Steal
฿18,117-36%฿6,471 below avg
ScootCheapest Time to Fly to Perth
Compare the cheapest months to fly from Bangkok to Perth in THB. See separate one-way and roundtrip fare ranges, sample sizes and current deals.
One way from ฿5,446
Roundtrip from ฿11,646
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Current deals to Perth · Roundtrip
Outbound and return flights together in one total fare · Available fares behind the monthly comparison
ScootCurrent deals to Perth · One way
Outbound-only fares for flexible and open-ended plans · Available fares behind the monthly comparison
One way
Perth
Australia
Beach City
Sep 23Wed
One-way fare
฿5,446
Steal
฿8,252-34%฿2,806 below avg
ScootOne way
Last Minute
Perth
Australia
Beach City
Sep 17Thu
One-way fare
฿5,455
Steal
฿8,252-34%฿2,797 below avg
ScootOne way
Last Minute
Perth
Australia
Beach City
Sep 18Fri
One-way fare
฿5,456
Steal
฿8,252-34%฿2,796 below avg
ScootOne way
Last Minute
Perth
Australia
Beach City
Sep 19Sat
One-way fare
฿5,466
Steal
฿8,252-34%฿2,786 below avg
ScootOne way
Last Minute
Perth
Australia
Beach City
Sep 20Sun
One-way fare
฿5,466
Steal
฿8,252-34%฿2,786 below avg
ScootOne way
Last Minute
Perth
Australia
Beach City
Sep 21Mon
One-way fare
฿5,466
Steal
฿8,252-34%฿2,786 below avg
ScootOne way
Perth
Australia
Beach City
Oct 19Mon
One-way fare
฿5,466
Steal
฿8,252-34%฿2,786 below avg
ScootOne way
Perth
Australia
Beach City
Oct 24Sat
One-way fare
฿5,466
Steal
฿8,252-34%฿2,786 below avg
ScootOne way
Perth
Australia
Beach City
Oct 26Mon
One-way fare
฿5,466
Steal
฿8,252-34%฿2,786 below avg
ScootMonthly fare comparison
Lowest and average fares with sample sizes.
Monthly fare comparison
Lowest and average fares with sample sizes.
January 2027
649 fares
One way29
- Min
- ฿12,226
- Avg
- ฿14,210
Roundtrip620
- Min
- ฿18,714
- Avg
- ฿21,854
February 2027
588 fares
One way28
- Min
- ฿6,063
- Avg
- ฿8,207
Roundtrip560
- Min
- ฿12,270
- Avg
- ฿15,781
March 2027
567 fares
One way27
- Min
- ฿6,064
- Avg
- ฿6,984
Roundtrip540
- Min
- ฿12,280
- Avg
- ฿16,014
September 2026
460 fares
One way22
- Min
- ฿5,446
- Avg
- ฿6,371
Roundtrip438
- Min
- ฿11,646
- Avg
- ฿16,906
October 2026
649 fares
One way31
- Min
- ฿5,466
- Avg
- ฿6,997
Roundtrip618
- Min
- ฿12,342
- Avg
- ฿14,776
November 2026
625 fares
One way30
- Min
- ฿6,007
- Avg
- ฿6,956
Roundtrip595
- Min
- ฿13,425
- Avg
- ฿17,775
December 2026
616 fares
One way31
- Min
- ฿6,004
- Avg
- ฿7,666
Roundtrip585
- Min
- ฿13,611
- Avg
- ฿23,120
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 Perth
Which month has the cheapest one-way flights from Bangkok to Perth?
September currently has the lowest observed one-way fare, from ฿5,446. This compares one-way fares only.
Which month has the cheapest roundtrip flights from Bangkok to Perth?
September currently has the lowest observed roundtrip fare, from ฿11,646. This compares complete roundtrips only.
How are the cheapest months for Perth 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?
September currently starts at ฿5,446, the lowest observed one-way fare among the available months.
Which month is cheapest roundtrip?
September currently starts at ฿11,646, 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.