Cheap flights from Baltimore to Mont-Cascades from CA $216

View CA $216 flight on Mon, Aug. 25, 2025Opens in a new window

Popular airlines from Baltimore to Mont-Cascades

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Cheap flights from Baltimore (WAS) to Mont-Cascades (YOW)

Prices were available within the past 7 days and start at CA $216 for one-way flights and CA $499 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Aug. 27 - Fri, Aug. 29
DCA
Washington
YOW
Ottawa
CA $499 Roundtrip, just found
CA $499
Roundtrip
just found
Select Air Canada flight, departing Wed, Aug. 27 from Washington to Ottawa, returning Fri, Aug. 29, priced at CA $499 just found
Air Canada
Fri, Aug. 29 - Mon, Sep. 1
DCA
Washington
YOW
Ottawa
CA $508 Roundtrip, just found
CA $508
Roundtrip
just found
Select Air Canada flight, departing Fri, Aug. 29 from Washington to Ottawa, returning Mon, Sep. 1, priced at CA $508 just found
Air Canada
Fri, Aug. 29 - Mon, Sep. 1
DCA
Washington
YOW
Ottawa
CA $522 Roundtrip, just found
CA $522
Roundtrip
just found
Select Air Canada flight, departing Fri, Aug. 29 from Washington to Ottawa, returning Mon, Sep. 1, priced at CA $522 just found
United
Mon, Aug. 11 - Tue, Aug. 19
DCA
Washington
YOW
Ottawa
CA $527 Roundtrip, found 3 days ago
CA $527
Roundtrip
found 3 days ago
Select United flight, departing Mon, Aug. 11 from Washington to Ottawa, returning Tue, Aug. 19, priced at CA $527 found 3 days ago
Delta
Wed, Aug. 13 - Thu, Aug. 21
BWI
Baltimore
YOW
Ottawa
CA $813 Roundtrip, found 1 day ago
CA $813
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug. 13 from Baltimore to Ottawa, returning Thu, Aug. 21, priced at CA $813 found 1 day ago
WestJet
Tue, Aug. 26 - Wed, Aug. 27
BWI
Baltimore
YOW
Ottawa
CA $1,148 Roundtrip, found 1 day ago
CA $1,148
Roundtrip
found 1 day ago
Select WestJet flight, departing Tue, Aug. 26 from Baltimore to Ottawa, returning Wed, Aug. 27, priced at CA $1,148 found 1 day ago

Find the cheapest month to fly from Baltimore (BWI) to Ottawa (YOW)

May is typically the cheapest month to fly

From CA $582 - CA $1,523 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.