Find out what a flight from Saint Louis to Ottawa might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between Saint Louis and Ottawa.

Select your dates to check current offers.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Is there more than one airport in Saint Louis or Ottawa?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

• Airports in Saint Louis: Only Saint Louis - Lambert is currently operational.
• Airports in Ottawa: Ottawa - McDonald Cartier is the only airport in operation.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near Ottawa as well.

Plan smarter: flights from Saint Louis to Ottawa

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to Canada also checked out: Calgary, Montreal, Quebec, Toronto, Vancouver.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.