Cheap flights from Boston to Phnom Penh

View AU$773 flight on Mon, 25 Aug. 2025Opens in a new window

Popular airlines from Boston to Phnom Penh

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Cheap Flights from Boston (BOS) to Phnom Penh (KH-12)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, 25 Aug. - Sun, 7 Sep.
BOS
Boston
PNH
Phnom Penh
AU$1,381 Return, found 5 days ago
AU$1,381
Return
found 5 days ago
Select Korean Air flight, departing Mon, 25 Aug. from Boston to Phnom Penh, returning Sun, 7 Sep., priced at AU$1,381 found 5 days ago
Delta
Mon, 25 Aug. - Sun, 7 Sep.
BOS
Boston
PNH
Phnom Penh
AU$1,384 Return, found 5 days ago
AU$1,384
Return
found 5 days ago
Select Delta flight, departing Mon, 25 Aug. from Boston to Phnom Penh, returning Sun, 7 Sep., priced at AU$1,384 found 5 days ago
Cathay Pacific
Mon, 25 Aug. - Sun, 7 Sep.
BOS
Boston
PNH
Phnom Penh
AU$1,447 Return, found 5 days ago
AU$1,447
Return
found 5 days ago
Select Cathay Pacific flight, departing Mon, 25 Aug. from Boston to Phnom Penh, returning Sun, 7 Sep., priced at AU$1,447 found 5 days ago
Etihad Airways
Mon, 25 Aug. - Sun, 7 Sep.
BOS
Boston
PNH
Phnom Penh
AU$1,989 Return, found 5 days ago
AU$1,989
Return
found 5 days ago
Select Etihad Airways flight, departing Mon, 25 Aug. from Boston to Phnom Penh, returning Sun, 7 Sep., priced at AU$1,989 found 5 days ago
United
Mon, 25 Aug. - Sun, 7 Sep.
BOS
Boston
PNH
Phnom Penh
AU$1,996 Return, found 5 days ago
AU$1,996
Return
found 5 days ago
Select United flight, departing Mon, 25 Aug. from Boston to Phnom Penh, returning Sun, 7 Sep., priced at AU$1,996 found 5 days ago
Turkish Airlines
Mon, 25 Aug. - Sun, 7 Sep.
BOS
Boston
PNH
Phnom Penh
AU$2,762 Return, found 5 days ago
AU$2,762
Return
found 5 days ago
Select Turkish Airlines flight, departing Mon, 25 Aug. from Boston to Phnom Penh, returning Sun, 7 Sep., priced at AU$2,762 found 5 days ago

Find the cheapest month to fly from Boston (BOS) to Phnom Penh (PNH)

September is typically the cheapest month to fly

From AU$1,241 - AU$2,278 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.