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How much is the cheapest flight to Costa Mesa?
Prices were available within the past 7 days and start at NT$2,215 for one-way flights and NT$4,428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Tue, Sep 10 - Sat, Sep 14
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
NT$4,428 Roundtrip, found 5 days ago
NT$4,428
Roundtrip
found 5 days ago
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Sat, Sep 21 - Sat, Sep 28
SEA
Seattle - Tacoma Intl.
SNA
John Wayne
NT$5,729 Roundtrip, found 2 days ago
NT$5,729
Roundtrip
found 2 days ago
![United](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif)
Sat, Aug 3 - Sat, Aug 10
ORD
O'Hare Intl.
SNA
John Wayne
NT$11,625 Roundtrip, found 1 day ago
NT$11,625
Roundtrip
found 1 day ago
![American Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif)
Sat, Jun 29 - Mon, Jul 1
ORD
O'Hare Intl.
ONT
Los Angeles - Ontario Intl.
NT$15,534 Roundtrip, found 2 days ago
NT$15,534
Roundtrip
found 2 days ago
![Alaska Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif)
Tue, Sep 10 - Sat, Sep 14
PAE
Seattle Paine Field Intl. Airport
ONT
Los Angeles - Ontario Intl.
NT$25,015 Roundtrip, found 5 days ago
NT$25,015
Roundtrip
found 5 days ago
Frequently asked questions
Destination airport | Los Angeles - Ontario Intl. |
Destination airport IATA code | ONT |
Destination city name | Ontario |
Roundtrip price | NT$4,428 |
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Trending flights to Costa Mesa
Prices were available within the past 7 days and start at NT$2,215 for one-way flights and NT$4,428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![United](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif)
Wed, Oct 9 - Wed, Oct 16
TPE
Taoyuan Intl.
ONT
Los Angeles - Ontario Intl.
NT$31,493 Roundtrip, found 13 hours ago
NT$31,493
Roundtrip
found 13 hours ago
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