United Airlines flights from Singapore to Seattle (SIN - SEA)
SIN — SEA
5 Nov — 12 Nov1
Find United Airlines flight deals from Singapore to Seattle
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Cheapest United Airlines flights from Singapore to SeattleExplore the most affordable United Airlines flight options available from Singapore to Seattle. Find the lowest fares with prices last updated on 6 October 2026.
Explore the most affordable United Airlines flight options available from Singapore to Seattle. Find the lowest fares with prices last updated on 6 October 2026.
Tue 13-1008:45 -
1 stop20h 32m
Thu 29-1007:00 -
1 stop22h 15m
Deal found 1-10S$ 1,212
Thu 5-1110:10 -
1 stop22h 17m
Sun 22-1119:04 -
2 stops33h 11m
Deal found 4-10S$ 1,214
Tue 13-1008:45 -
1 stop20h 32m
Sat 31-1015:35 -
1 stop24h 25m
Deal found 1-10S$ 1,267
Best United Airlines flights from Singapore to SeattleDiscover carefully curated United Airlines flight deals from Singapore to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.
Discover carefully curated United Airlines flight deals from Singapore to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.
Mon 26-1010:10 -
1 stop21h 17m
Mon 2-1116:39 -
2 stops35h 36m
Deal found 2-10S$ 1,212
Sun 8-1110:10 -
1 stop26h 37m
Mon 30-1116:39 -
2 stops35h 36m
Deal found 5-10S$ 1,212
Thu 22-1020:35 -
1 stop32h 42m
Sun 8-1116:39 -
2 stops35h 36m
Deal found 6-10S$ 1,212
Last-minute United Airlines flights from Singapore to SeattleDiscover last-minute United Airlines flight deals from Singapore to Seattle. Data last updated 6 October 2026 and is based on user searches.
Discover last-minute United Airlines flight deals from Singapore to Seattle. Data last updated 6 October 2026 and is based on user searches.
Tue 13-1008:45 -
1 stop20h 32m
Thu 29-1007:00 -
1 stop22h 15m
Deal found 1-10S$ 1,212
Thu 5-1110:10 -
1 stop22h 17m
Sun 22-1119:04 -
2 stops33h 11m
Deal found 4-10S$ 1,214
Tue 13-1008:45 -
1 stop20h 32m
Sat 31-1015:35 -
1 stop24h 25m
Deal found 1-10S$ 1,267
One-way United Airlines flights to SeattleSearch for one-way United Airlines flight options to Seattle. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.
Search for one-way United Airlines flight options to Seattle. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.
Wed 21-1020:35 -
1 stop34h 59m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 2-10S$ 650
Mon 26-1022:20 -
1 stop37h 27m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 4-10S$ 652
Fri 20-1122:20 -
1 stop41h 11m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 1-10S$ 653
United Airlines flights from Singapore to Seattle in 2026
Find detailed information about United Airlines flights from Singapore to Seattle. Explore the options provided by United Airlines to plan your journey from Singapore to Seattle. Data last updated 6 October 2026.
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).
Best time to book a flight from Singapore to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Singapore with our price prediction graph.
SIN-SEA
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Browse thousands of different options on Cheapflights for your next trip
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Fly from Singapore to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on 6 October 2026.
Other United Airlines flights from Singapore
Browse through other United Airlines flights departing from Singapore. Flight routes are based on user searches made on Cheapflights and were last updated on 6 October 2026.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Other airlines serving Singapore and Seattle
Choose from other airlines serving Singapore and Seattle.
Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 6 October 2026.
Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 6 October 2026.
See what others are saying about United Airlines
Read reviews and see what other travellers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated 6 October 2026.
Overview
Reviews
United Airlines
10,000 reviews
Overview
Comfort
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Entertainment
7.1
Recent reviews
10.0
|Oct 2026Is good
10.0
|Sept 2026Everything was good
8.0
|Sept 2026The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
10.0
|Aug 2026Staff friendly, good boarding experience
4.0
|Aug 2026Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
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