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Cheap Flights from St. Louis to Ottawa $289.54

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Cheapest Flights from St. Louis to Ottawa (STL to YOW)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Ottawa (STL to YOW)

Question : How long are most people's visits to Ottawa when they fly in from Saint Louis?
Answer : Of course you're not most people, but if you were, you'd stay roughly three days.

Question : Can you cut down on flight costs by changing the day of the week you travel to Ottawa?
Answer : The best day to fly on a budget this month is Wednesday. Being flexible with your travel days garners you even more savings during your booking.

Question : Over the coming months, which airline is getting its passengers to Ottawa/Macdonald-Cartier International Airport (YOW) round-trip the cheapest?
Answer : American Airlines is offering its passengers the cheapest flights over the next three months.