Cheap Flights from Seattle to Siem Reap
No deal from Seattle to Siem Reap has cleared our price bar yet. What we have seen on the route is below.
Across 4 months of observations from Seattle to Siem Reap, the lowest round-trip fare we recorded was $980, in September. The typical fare was $1048. September was the cheapest month we saw and July the dearest.
The most recent price we saw on this route was $984 on Cathay Pacific and Bangkok Airways, seen Oct 28. It is an unverified observation and may have changed.
See every deal <a href="/from/seattle">from Seattle</a>, <a href="/to/siem-reap">to Siem Reap</a>, or the return direction <a href="/from/siem-reap/to/seattle">Siem Reap to Seattle</a>.
Latest price we saw: Seattle to Siem Reap
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Seattle (SEA) to Siem Reap (SAI) | $984 | 6.7¢ | Nov 2 – Nov 10 | Cathay Pacific and Bangkok Airways | Oct 28 | Check price |
Price history: Seattle to Siem Reap
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $984 | $986 | 56 |
| Sep 2026 | $980 | $1002 | 68 |
| Aug 2026 | $984 | $1038 | 93 |
| Jul 2026 | $1165 | $1165 | 2 |
Frequently asked questions
How many flight deals from Seattle to Siem Reap are on Sparkflights right now?
There are 0 verified deals from Seattle to Siem Reap on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Seattle to Siem Reap?
The lowest fare we've recorded from Seattle to Siem Reap is $980, based on 219 price observations over 4 months.
How much does a flight from Seattle to Siem Reap cost?
The typical round-trip fare we observed from Seattle to Siem Reap is $1048, against a recorded low of $980. These are observations, not quotes.
When is the cheapest month to fly Seattle to Siem Reap?
September was the cheapest month we observed from Seattle to Siem Reap and July the dearest, over 4 months of data.
What is the current price from Seattle to Siem Reap?
The most recent fare our sweep saw from Seattle to Siem Reap is $984, on Oct 28. It is an unverified observation rather than a verified deal, so check it before booking.