Book a trip from Boston to Phnom Penh with Cathay Pacific , fares from USD931
Book a trip from Boston to Phnom Penh ..
expand_more
1 Passenger(s), Economy
expand_moreDISCOUNT CODE (OPTIONAL)
expand_moretoday
today
Deals on Boston (BOS) to Phnom Penh (PNH) flights
expand_more
location_on
location_on
Book flights to Phnom Penh PNH
flight_takeoff
flight_land
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 18/09/2025 - 14/10/2025 | From USD931 Seen 1 day ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 16/09/2025 - 27/10/2025 | From USD931 Seen 17 hours ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 15/09/2025 - 25/10/2025 | From USD981 Seen 1 day ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 10/01/2026 - 17/01/2026 | From USD1,031 Seen 1 day ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 14/09/2025 - 24/10/2025 | From USD1,555 Seen 20 hours ago |
Book Business Class flights to Phnom Penh - selected offers
flight_takeoff
flight_land
There are no fares that match your filter criteria. Please adjust your filters.
There are no fares that match your filter criteria. Please adjust your filters.Explore More Flights from Other Popular Origins
Explore More Flights from Other Popular Origins
The Cathay Pacific experience
-
Spacious cabins and world-class service
-
Complete flexibility when you book
-
Fresher flavours, now ready for Business
-
Our intuitive digital experience
All fares displayed include taxes and carrier-imposed surcharges. All fares, government taxes and fees, and surcharges are subject to change at any time. For ticket cancellations, where applicable, the Hong Kong Passenger Security Charge, the Hong Kong Air Passenger Departure Tax, and the Hong Kong International Airport Construction Fee will be refunded without any administration fees.
Flight Deals for Popular Routes on Cathay Pacific
flight_takeoff
flight_land
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 21/05/2026 - 18/06/2026 | From USD1,278 Seen 1 day ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 11/04/2026 - 09/05/2026 | From USD1,376 Seen 1 day ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 01/04/2026 - 25/04/2026 | From USD1,667 Seen 16 hours ago | |
| Boston (BOS) | Phnom Penh (KTI) | Round-trip / Economy | 07/05/2026 - 27/08/2026 | From USD1,692 Seen 22 hours ago |
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.
Travel to Phnom Penh in Premium Economy
Boston (BOS)to
Phnom Penh (KTI)20/12/2025 - 11/01/2026FromUSD6,851Seen 1 day agoRound-tripPremium Economy
Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)