Economy fares · SEA to SIN
Lowest fare in our last check: $1,661 per person, round trip · checked Oct 31, 2026. Fares change and are confirmed when you book.
Photo of Seattle, where this route departs: Seattle skyline with the Space Needle and Mount Rainier, seen from Queen Anne Hill. Daniel Schwen, CC BY-SA 4.0, via Wikimedia Commons, cropped; the crop is shared under the same licence.
Distance
8,065 mi
SEA to SIN, straight line
Nonstop
Seen
in our Oct 31 check
Airlines seen
3
EVA Air, Singapore Airlines, Starlux Airlines
Fare checks
3
since Sep 21, 2026, latest Oct 31
United Airlines operates flights from Seattle to Singapore, typically requiring a layover before crossing the Pacific. Checking current pricing and comparing travel times on our site helps you find an itinerary that fits your schedule.
From 10 real fares found in our latest check. Prices are per person and can change.
$364 between the cheapest and priciest fare
In this check, fares on this route ranged from $1,661 to $2,025, a 18% difference. Airline, stops and travel dates all change the price, so compare the options below before you book.
10 real fares from our latest check, cheapest first. Prices are per person and can change until ticketed.
Starlux Airlines
1 stop · 21h 40m · Tue, Dec 15
$1,661
Check availabilitySingapore Airlines
Nonstop · 17h 5m · Tue, Dec 15
$1,989
Check availabilityEVA Air
1 stop · 23h · Tue, Dec 15
$2,025
Check availabilityEVA Air
1 stop · 23h · Tue, Dec 15
$2,025
Check availabilityEVA Air
1 stop · 23h · Tue, Dec 15
$2,025
Check availabilityUnited Airlines provides regular service on the route from Seattle to Singapore. Fares found recently show 1 stop itineraries, with total travel times ranging from 24h 25m up to 30h 55m depending on the connection. Compare the live fares shown above to evaluate how different layover durations affect your overall trip.
Pricing patterns often reflect holiday demand. Fares tend to remain relatively low in November and January, but travel costs spike significantly during the December holiday period. To understand what you might pay, review the live fares shown above for your specific travel dates.
Flexibility is a major factor in securing a lower fare. Shifting your departure or return by a few days can reveal alternative pricing options. Check the airline's baggage allowance before booking, as extra fees for checked luggage can alter your overall budget. Comparing flights early and avoiding peak travel months like December will also give you more control over the cost.
We have not found nonstop flights from Seattle to Singapore in our recent data. Options typically involve 1 stop, which breaks up the long journey. Total travel times vary from 24h 25m to 30h 55m depending on your chosen connection.
Our search tools display live fares from Seattle to Singapore without adding booking fees. If you prefer speaking to someone about current pricing or complicated itineraries, our advisors are ready to help on the phone. We make it easy to compare flights so you can confidently plan your trip.
Recent data shows United Airlines operating on this route. Check the live fares shown above to see all available carriers for your travel dates.
Total journey times on 1 stop itineraries range from 24h 25m to 30h 55m. The duration depends heavily on where you connect.
Recent searches have not found nonstop flights between these cities. Available itineraries typically require 1 stop.
Prices tend to be more favorable in November and January. Demand drives costs up significantly during December, so review current pricing early if you must travel over the winter holidays.
ASAirspace focuses entirely on economy fares for travelers wanting to monitor their budgets. We do not compare premium options like business class flights from Seattle to Singapore.
While some travelers search for Singapore Airlines business class Seattle to Singapore, our platform is designed strictly for comparing economy flights. Check the airline directly for their premium cabin availability.
Luggage rules vary by carrier and ticket type. Always check the airline's baggage allowance before booking to understand what is included in your fare.
Booking early gives you more options for connection times. Fares can fluctuate, so monitor the live pricing shown above and book when you see an itinerary that matches your schedule.
A round trip is often priced differently than booking two separate one-way tickets. Use our search tool to compare both options using current pricing.
Seasonality, connection lengths, and how far ahead you book all impact the cost. Peak holiday periods like December typically see higher demand and correspondingly higher pricing.
