⚡ Fare recorded April 25, 2026 · Prices change daily

Hanoi to Siem Reap flights

Hanoi (HAN) to Siem Reap (SAI): 552 miles (889 km) great-circle, about 1h 35m nonstop by our estimate. Cheapest fare observed: $248 round-trip on Vietnam Airlines, nonstop, departing May 9, 2026.

VNVietnam AirlinesVN837
Depart
HAN
Hanoi, Vietnam
15:30
2026-05-09
✈
Arrive
SAI
Siem Reap, Cambodia
Returns 19:05
2026-05-15
Stops
non-stop
Distance
552 mi
Est. nonstop time
1h 35m
Trip type
Round-trip
$248
Round-trip · per person
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About this flight

When did the cheapest Hanoi to Siem Reap fare fly?

$248 round-trip, Vietnam Airlines VN837, departing 2026-05-09 at 15:30, returning 2026-05-15. The recorded itinerary left on a Saturday, returning on a Friday 6 nights later; the fare was observed 14 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Hanoi from Siem Reap?

  • Distance: 552 miles (889 km) great-circle, heading south.
  • Estimated nonstop flight time: about 1h 35m.
  • Departure airport: Noi Bai International Airport (HAN), Hanoi, Vietnam, UTC+7 on May 9, 2026.
  • Arrival: Siem Reap Angkor International Airport (SAI), Cambodia, UTC+7 on May 9, 2026.
  • Time difference: none on the recorded date.
  • Route type: international, Vietnam to Cambodia.
  • Arrival airport elevation: 191 ft.
  • Recorded itinerary: Vietnam Airlines VN837, non-stop, round-trip, 6 days between departure and return.
Fare comparison

How does the Hanoi to Siem Reap fare compare with other routes from HAN?

At $248, it ranked 12th of the 30 round-trip fares we recorded from HAN (median $271). That is 44.9 cents per great-circle mile (round-trip price over one-way distance), above the HAN median of 25.9 cents across 30 round-trip routes.

Routes from HAN of similar length: Quy Nhon (545 mi) at $131 and Hong Kong (526 mi) at $212.

Vietnam Airlines had the cheapest fare on 2 of 30 HAN routes. It is the 26th longest of the 30 routes we track from HAN.

Other ways in

What did other cities pay to fly to Siem Reap?

Of 2 departure airports with a fare to Siem Reap, Hanoi (HAN) ranked 1st at $248. Lowest: $248 from Hanoi (HAN); highest: $257 from Ho Chi Minh City (SGN); 2 nonstop. Cheapest-fare airlines (routes): airline K6 (1) and Vietnam Airlines (1).

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Ho_Chi_Minh, Asia/Phnom_Penh; flight time is our estimate.

FAQ

Hanoi to Siem Reap flight questions

How far is Hanoi from Siem Reap by plane?

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Hanoi is about 552 miles (889 km) from Siem Reap on a great-circle line from Noi Bai International Airport (HAN) to Siem Reap Angkor International Airport (SAI), heading south. It is the 26th longest of the 30 routes we track from HAN. The recorded itinerary was nonstop.

How long is the flight from Hanoi to Siem Reap?

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About 1h 35m nonstop by our estimate for 552 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded Vietnam Airlines fare was nonstop. 2 airports in our feed had a fare to Siem Reap; this one ranked 1st, and 2 of the 2 were nonstop.

What is the time difference between Hanoi and Siem Reap?

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On May 9, 2026, Hanoi was on UTC+7 (Asia/Ho_Chi_Minh) and Siem Reap on UTC+7 (Asia/Phnom_Penh), so the two cities shared the same clock time: noon in Hanoi was 12:00 in Siem Reap. Neither Asia/Ho_Chi_Minh nor Asia/Phnom_Penh shifts for daylight saving, so the gap holds all year.

How much is a flight from Hanoi to Siem Reap?

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As observed on April 25, 2026: $248 per person round-trip on Vietnam Airlines flight VN837, departing May 9, 2026, returning May 15, 2026, nonstop. At $248, it ranked 12th of the 30 round-trip fares we recorded from HAN (median $271). That is 44.9 cents per great-circle mile (round-trip price over one-way distance), above the HAN median of 25.9 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Hanoi to Siem Reap?

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Yes, the cheapest recorded fare was a nonstop Vietnam Airlines flight, VN837, on May 9, 2026. Into Siem Reap, 2 of the 2 recorded fares were nonstop. From HAN, 15 of 30 were. Routes from HAN of similar length: Quy Nhon (545 mi) at $131 and Hong Kong (526 mi) at $212.

Which airports serve flights from Hanoi to Siem Reap?

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It departs Noi Bai International Airport (HAN) in Hanoi, Vietnam, and arrives at Siem Reap Angkor International Airport (SAI) in Siem Reap, Cambodia. An international flight, Vietnam to Cambodia. Vietnam Airlines had the cheapest fare on 2 of 30 HAN routes.

Where else near Siem Reap can you fly from Hanoi?

Phu Quoc (PQC) $179Bangkok (BKK) $165Ho Chi Minh City (SGN) $192Da Nang (DAD) $112Quy Nhon (UIH) $131Nha Trang (NHA) $186All flights from Hanoi →

Other cities with flights to Siem Reap

From Ho Chi Minh City (SGN) $257

Ready to fly?

Book Vietnam Airlines HAN → SAI · $248 →