Cheap flights from Ottawa to Mountain States

View AU$264 flight on Fri, 3 Oct. 2025Opens in a new window

Popular airlines from Ottawa to Mountain States

  • Air Canada

    Air Canada

  • Porter Airlines

    Porter Airlines

  • United

    United

  • WestJet

    WestJet

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Cheap Flights from Ottawa (YOW) to Mountain States (DEN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, 3 Oct. - Mon, 6 Oct.
YOW
Ottawa
LAS
Las Vegas
AU$453 Return, found 1 day ago
AU$453
Return
found 1 day ago
Select Air Canada flight, departing Fri, 3 Oct. from Ottawa to Las Vegas, returning Mon, 6 Oct., priced at AU$453 found 1 day ago
WestJet
Fri, 3 Oct. - Mon, 6 Oct.
YOW
Ottawa
LAS
Las Vegas
AU$463 Return, found 1 day ago
AU$463
Return
found 1 day ago
Select WestJet flight, departing Fri, 3 Oct. from Ottawa to Las Vegas, returning Mon, 6 Oct., priced at AU$463 found 1 day ago
Air Canada
Fri, 3 Oct. - Mon, 6 Oct.
YOW
Ottawa
LAS
Las Vegas
AU$476 Return, found 1 day ago
AU$476
Return
found 1 day ago
Select Air Canada flight, departing Fri, 3 Oct. from Ottawa to Las Vegas, returning Mon, 6 Oct., priced at AU$476 found 1 day ago
United
Fri, 3 Oct. - Mon, 6 Oct.
YOW
Ottawa
LAS
Las Vegas
AU$485 Return, found 1 day ago
AU$485
Return
found 1 day ago
Select United flight, departing Fri, 3 Oct. from Ottawa to Las Vegas, returning Mon, 6 Oct., priced at AU$485 found 1 day ago
WestJet
Fri, 3 Oct. - Mon, 6 Oct.
YOW
Ottawa
LAS
Las Vegas
AU$494 Return, found 1 day ago
AU$494
Return
found 1 day ago
Select WestJet flight, departing Fri, 3 Oct. from Ottawa to Las Vegas, returning Mon, 6 Oct., priced at AU$494 found 1 day ago
Porter Airlines
Fri, 3 Oct. - Mon, 6 Oct.
YOW
Ottawa
LAS
Las Vegas
AU$507 Return, found 1 day ago
AU$507
Return
found 1 day ago
Select Porter Airlines flight, departing Fri, 3 Oct. from Ottawa to Las Vegas, returning Mon, 6 Oct., priced at AU$507 found 1 day ago

Find the cheapest month to fly from Ottawa (YOW) to Las Vegas (LAS)

March is typically the cheapest month to fly

From AU$295 - AU$540 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.