Flights from Ottawa to the United States from $ 270*

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Changed bag rules and optional services         Cruise Packages

Find United's best fares from Ottawa to the United States

$
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  • Ottawa (YOW)to

    Orlando (MCO)
    02/19/26 - 02/26/26
    from
    $ 330
    Viewed: 6 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Chicago (ORD)
    02/23/26 - 02/26/26
    from
    $ 843
    Viewed: 5 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Las Vegas (LAS)
    05/02/26 - 05/08/26
    from
    $ 270
    Viewed: 3 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    San Antonio (SAT)
    02/28/26 - 03/11/26
    from
    $ 384
    Viewed: 1 day ago
    Roundtrip
    Economy

  • Ottawa (YOW)to

    San Diego (SAN)
    11/22/26 - 12/01/26
    from
    $ 568
    Viewed: 3 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Denver (DEN)
    05/09/26 - 05/19/26
    from
    $ 538
    Viewed: 7 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Palm Springs (PSP)
    03/15/26 - 03/22/26
    from
    $ 768
    Viewed: 1 day ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Boston (BOS)
    02/20/26 - 02/21/26
    from
    $ 607
    Viewed: 9 hours ago
    Roundtrip
    Economy

  • Ottawa (YOW)to

    Sarasota (SRQ)
    05/22/26 - 06/01/26
    from
    $ 1,296
    Viewed: 8 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Sacramento (SMF)
    03/01/26 - 03/05/26
    from
    $ 644
    Viewed: 5 hours ago
    Roundtrip
    Economy

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

Business class flights from Ottawa to the United States

$

Ottawa (YOW)to

Newark/New York (EWR)
03/16/26 - 03/20/26

Roundtrip

Business

from
$ 548
Viewed: 20 hours ago

Ottawa (YOW)to

Los Angeles (LAX)
08/12/26 - 08/22/26

Roundtrip

Business

from
$ 2,149
Viewed: 20 hours ago

Ottawa (YOW)to

Dallas (DFW)
03/20/26 - 03/27/26

Roundtrip

Business

from
$ 957
Viewed: 1 day ago

Ottawa (YOW)to

Tampa (TPA)
04/20/26 - 05/12/26

Roundtrip

Business

from
$ 1,341
Viewed: 1 day ago

Ottawa (YOW)to

Orlando (MCO)
02/19/26 - 02/26/26

Roundtrip

Business

from
$ 1,719
Viewed: 6 hours ago

Ottawa (YOW)to

Chicago (ORD)
02/23/26 - 02/26/26

Roundtrip

Business

from
$ 1,050
Viewed: 5 hours ago

Ottawa (YOW)to

Las Vegas (LAS)
05/02/26 - 05/09/26

Roundtrip

Business

from
$ 1,759
Viewed: 3 hours ago

Ottawa (YOW)to

San Antonio (SAT)
02/28/26 - 03/11/26

Roundtrip

Business

from
$ 1,191
Viewed: 1 day ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.