Cheap Flights to Sumner

View ₩139,200 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines to Sumner

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How much is the cheapest flight to Sumner?

Prices were available within the past 7 days and start at ₩139,200 for one-way flights and ₩246,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Oct 8 - Wed, Oct 15
ONT
Ontario
SEA
Seattle
₩246,000 Roundtrip, found 1 day ago
₩246,000
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Oct 8 from Ontario to Seattle, returning Wed, Oct 15, priced at ₩246,000 found 1 day ago
Delta
Sat, Oct 4 - Sat, Oct 18
ONT
Ontario
SEA
Seattle
₩246,100 Roundtrip, found 4 days ago
₩246,100
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Oct 4 from Ontario to Seattle, returning Sat, Oct 18, priced at ₩246,100 found 4 days ago
American Airlines
Wed, Feb 4 - Sat, Feb 7
LAX
Los Angeles
SEA
Seattle
₩291,100 Roundtrip, found 2 days ago
₩291,100
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Feb 4 from Los Angeles to Seattle, returning Sat, Feb 7, priced at ₩291,100 found 2 days ago
United
Sat, Oct 25 - Sat, Nov 1
LAX
Los Angeles
SEA
Seattle
₩315,600 Roundtrip, found 6 days ago
₩315,600
Roundtrip
found 6 days ago
Select United flight, departing Sat, Oct 25 from Los Angeles to Seattle, returning Sat, Nov 1, priced at ₩315,600 found 6 days ago
Korean Air
Mon, Oct 27 - Fri, Oct 31
ICN
Seoul
SEA
Seattle
₩625,700 Roundtrip, found 3 hours ago
₩625,700
Roundtrip
found 3 hours ago
Select Korean Air flight, departing Mon, Oct 27 from Seoul to Seattle, returning Fri, Oct 31, priced at ₩625,700 found 3 hours ago

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

August is typically the cheapest month to fly

From ₩189,590 - ₩349,064 per traveler.

Book with confidence

Book with confidence

Searching for cheap flights to Sumner? No travel company presents more choices than Expedia if you're looking to compare flights to Sumner. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Washington. Expedia provides the cheapest flights to many destinations in Washington and you may find even greater savings if you combine your flight with a hotel stay in Sumner.

Travel information

Travel information

Destination airport
Lake Union Seaplane Base
Destination airport IATA code
LKE
Destination city name
Seattle
Roundtrip price
₩688,100

Trending flights to Sumner

Prices were available within the past 7 days and start at ₩139,200 for one-way flights and ₩246,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Fri, Oct 17 - Sun, Oct 19
ICN
Seoul
SEA
Seattle
₩468,500 Roundtrip, just found
₩468,500
Roundtrip
just found
Select Hawaiian Airlines flight, departing Fri, Oct 17 from Seoul to Seattle, returning Sun, Oct 19, priced at ₩468,500 just found

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Explore a world of travel with Expedia

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