Flights from Ottawa to the United States from $ 349*

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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

    Las Vegas (LAS)
    01/17/26 - 01/21/26
    from
    $ 350
    Viewed: 1 day ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Phoenix (PHX)
    12/25/25 - 12/30/25
    from
    $ 1,487
    Viewed: 5 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Denver (DEN)
    01/15/26 - 01/19/26
    from
    $ 779
    Viewed: 12 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Houston (IAH)
    02/22/26 - 02/24/26
    from
    $ 661
    Viewed: 1 day ago
    Roundtrip
    Economy

  • Ottawa (YOW)to

    Atlanta (ATL)
    06/24/26 - 06/27/26
    from
    $ 652
    Viewed: 9 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    San Jose (SJC)
    01/01/26 - 01/04/26
    from
    $ 1,017
    Viewed: 14 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Orange County (SNA)
    06/11/26 - 06/14/26
    from
    $ 1,033
    Viewed: 13 hours ago
    Roundtrip
    Economy

    Ottawa (YOW)to

    Maui (OGG)
    03/17/26 - 03/31/26
    from
    $ 533
    Viewed: 8 hours ago
    Roundtrip
    Economy

  • Ottawa (YOW)to

    Newark/New York (LGA)
    01/16/26 - 01/19/26
    from
    $ 569
    Viewed: 2 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)
12/27/25 - 01/03/26

Roundtrip

Business

from
$ 745
Viewed: 12 hours ago

Ottawa (YOW)to

Chicago (ORD)
03/06/26 - 03/15/26

Roundtrip

Business

from
$ 806
Viewed: 7 hours ago

Ottawa (YOW)to

Las Vegas (LAS)
05/13/26 - 05/19/26

Roundtrip

Business

from
$ 1,532
Viewed: 7 hours ago

Ottawa (YOW)to

Los Angeles (LAX)
02/20/26 - 02/22/26

Roundtrip

Business

from
$ 1,909
Viewed: 11 hours ago

Ottawa (YOW)to

San Diego (SAN)
02/20/26 - 02/22/26

Roundtrip

Business

from
$ 1,448
Viewed: 5 hours ago

Ottawa (YOW)to

Phoenix (PHX)
12/25/25 - 12/30/25

Roundtrip

Business

from
$ 1,873
Viewed: 5 hours ago

Ottawa (YOW)to

Denver (DEN)
01/15/26 - 01/19/26

Roundtrip

Business

from
$ 1,374
Viewed: 12 hours ago

Ottawa (YOW)to

Houston (IAH)
02/22/26 - 02/24/26

Roundtrip

Business

from
$ 1,313
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.