Cheap Flights to Black Diamond

View ₩124,800 flight on Sat, Nov 1, 2025Opens in a new window

Popular airlines to Black Diamond

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Black Diamond?

Prices were available within the past 7 days and start at ₩124,800 for one-way flights and ₩197,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Fri, Nov 14 - Tue, Nov 18
ONT
Ontario
SEA
Seattle
₩197,300 Roundtrip, found 1 day ago
₩197,300
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Fri, Nov 14 from Ontario to Seattle, returning Tue, Nov 18, priced at ₩197,300 found 1 day ago
Delta
Thu, Oct 30 - Sat, Nov 1
ONT
Ontario
SEA
Seattle
₩250,400 Roundtrip, found 3 days ago
₩250,400
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 30 from Ontario to Seattle, returning Sat, Nov 1, priced at ₩250,400 found 3 days ago
United
Thu, Oct 30 - Sat, Nov 1
ONT
Ontario
SEA
Seattle
₩348,600 Roundtrip, found 3 days ago
₩348,600
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 30 from Ontario to Seattle, returning Sat, Nov 1, priced at ₩348,600 found 3 days ago
Alaska Airlines
Thu, Oct 23 - Fri, Oct 31
ICN
Seoul
SEA
Seattle
₩478,300 Roundtrip, found 3 days ago
₩478,300
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Oct 23 from Seoul to Seattle, returning Fri, Oct 31, priced at ₩478,300 found 3 days ago
American Airlines
Fri, Oct 24 - Sat, Oct 25
ONT
Ontario
SEA
Seattle
₩578,100 Roundtrip, found 1 day ago
₩578,100
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Oct 24 from Ontario to Seattle, returning Sat, Oct 25, priced at ₩578,100 found 1 day ago

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

September is typically the cheapest month to fly

From ₩191,807 - ₩345,902 per traveler.

Searching for cheap flights to Black Diamond? No travel company presents more choices than Expedia if you're looking to compare flights to Black Diamond. 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 Black Diamond.

Flights to Black Diamond information
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Roundtrip price
₩197,300

Trending flights to Black Diamond

Prices were available within the past 7 days and start at ₩124,800 for one-way flights and ₩197,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Thu, Oct 23 - Sun, Oct 26
ICN
Seoul
SEA
Seattle
₩478,300 Roundtrip, found 2 days ago
₩478,300
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Thu, Oct 23 from Seoul to Seattle, returning Sun, Oct 26, priced at ₩478,300 found 2 days ago
*Available to Expedia members.