Cheap flights from Seattle to Shanghai from $435 BFI, SEA → PVG, SHA
Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → Shanghai Pudong International Airport (PVG), Shanghai Hongqiao International Airport (SHA)
The cheapest one-way found recently is $435 with Philippine Airlines, 1 Oct 2027, found 19 hours ago.
- Cheapest one-way found recently
- $435, Philippine Airlines, found 19 hours ago
- Cheapest month to fly
- March 2027, one-way fares from $403 found in the last 7 days
One-way
The cheapest one-way fare on each of 3 departure dates is usually $411 to $427.
Cheapest one-way found recently
$435
1 Oct 2027 · Philippine Airlines
Seattle-Tacoma International Airport (SEA) → Shanghai Pudong International Airport (PVG)
Leaves 11:55 p.m. · 24 h trip
1 stop · via Ninoy Aquino International Airport (MNL) · overnight connection · 7 h connection
found 19 hours ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$435 1 Oct 2027found 19 hours agoOpen this trip
$403 10 Mar 2027found 2 days agoOpen this trip
What have prices looked like?
Over 32 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was $419 to $1,672.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 10 Mar 2027 to 1 Oct 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 1 Oct 2027 to compare.
Every date we hold
25 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 10 Mar 2027 | $403 | Philippine Airlines | Seattle-Tacoma International Airport (SEA) → Shanghai Pudong International Airport (PVG) | 1 stop | found 2 days ago | Open this trip |
| 11 Mar 2027 | $419 | Philippine Airlines | Seattle-Tacoma International Airport (SEA) → Shanghai Pudong International Airport (PVG) | 1 stop | found 2 days ago | Open this trip |
| 1 Oct 2027 | $435 | Philippine Airlines | Seattle-Tacoma International Airport (SEA) → Shanghai Pudong International Airport (PVG) | 1 stop | found 19 hours ago | Open this trip |
Which month looks cheapest?
March 2027 is the cheapest month — from $403.
Airlines on the cheapest dates: Philippine Airlines.
Premium cabin fares from Seattle to Shanghai
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 1 Oct 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Shanghai?
One-way
Fares 180 or more days before departure were typically 8% lower than 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 12 Nov (32 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $467 | $467 | +9% | 7 |
| 60–89 days | $518 | $442 | +21% | 21 |
| 90–179 days | $440 | $419 | +3% | 22 |
| 180+ days | $429 | $429 | Cheapest seen | 9 |
Live price for these dates
The cheapest one-way found recently is for 1 Oct 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a one-way flight from Seattle to Shanghai?
The cheapest one-way found recently is $435 with Philippine Airlines, 1 Oct 2027, found 19 hours ago. The cheapest one-way we hold, of any age, is $403 with Philippine Airlines, 10 Mar 2027, found 2 days ago. The cheapest one-way fare on each of 3 departure dates is usually $411 to $427.
What is the cheapest month to fly from Seattle to Shanghai?
March 2027 is the cheapest month for a one-way, from $403, 10 Mar 2027, found 2 days ago.
How far ahead should I book a flight from Seattle to Shanghai?
In 32 days of prices between 24 Sept and 12 Nov, one-way fares 180 or more days before departure were typically 8% lower than 30 to 59 days before departure.
How long is the flight from Seattle to Shanghai?
The cheapest one-way found recently, with Philippine Airlines on 1 Oct 2027, takes 24 h with 1 stop, including a 7 h connection.
Which airlines have the cheapest flights from Seattle to Shanghai?
Between 10 Mar 2027 and 1 Oct 2027, Philippine Airlines has the cheapest one-way on all 3 departure dates we hold.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work