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Cheap Flights from St Louis to Ottawa, ON, Canada - STL to YOW

Popular flights from St Louis to Ottawa

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Air Canada
Departure Date Return Date Lowest Price
May 31, 2016 Jun 3, 2016 $302
American Airlines
Departure Date Return Date Lowest Price
Jun 14, 2016 Jun 17, 2016 $461
United Airlines
Departure Date Return Date Lowest Price
Jul 6, 2016 Jul 10, 2016 $338
WestJet
Departure Date Return Date Lowest Price
May 31, 2016 Jun 3, 2016 $411
Jul 6, 2016 Jul 10, 2016 $411

How Much Does it Cost to Fly from St Louis to Ottawa (STL to YOW)?

We have collected flight cost data from across the web for travel from St Louis to Ottawa, and have found the average flight price for this trip to be $361.

When Can I Buy the Cheapest Flight from St Louis to Ottawa (STL to YOW)?

Airlines can adjust prices for plane tickets from St Louis to Ottawa based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Round Trip vs One Way Flights from St Louis to Ottawa (STL to YOW)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Ottawa. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Ottawa is $199.

The average price for round trip flights from St Louis to Ottawa is $378.

St Louis to Ottawa Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to Ottawa?
Answer: Detroit, MI

Airlines Flying from St Louis to Ottawa (STL to YOW)

Below are the different airlines that fly from St Louis to Ottawa with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to Ottawa.

St Louis to Ottawa
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHL X X X X X X X
Air Canada YYZ X X X X X X X
Delta DTW X X X X X X X
Delta MSP / DTW X X X X X X X
United EWR X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and Ottawa, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to New York American, Alaska, United $253
St Louis to Chicago American, Alaska, United $213
St Louis to Boston American, Alaska, United $331
St Louis to Atlanta American, Alaska, Frontier, United $88
St Louis to Washington American, Alaska, United $203
St Louis to Newark American, Alaska, JetBlue, United $253
St Louis to Philadelphia American, Alaska, United $325
St Louis to Dallas - Ft Worth American, Alaska, United $203
St Louis to Syracuse American, Alaska, United $345
St Louis to Burlington American, Alaska, United $431
St Louis to Rochester American, Alaska, United $363
St Louis to Baltimore American, Alaska, United $293
St Louis to Detroit American, Alaska, United $232
St Louis to Hartford American, Alaska, United $267
St Louis to Albany American, Alaska, United $346
St Louis to Buffalo American, Alaska, United $345
St Louis to Charlotte American, Alaska, United $320
St Louis to Manchester American, United $327
St Louis to Pittsburgh American, Alaska, United $169
St Louis to Cleveland American, Alaska, United $162
St Louis to Providence American, Alaska, United $357

Cheap International Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Montreal Air Choice One, American, Air Canada, Alaska, United, WestJet $283
St Louis to Toronto Air Choice One, American, Air Canada, Alaska, Frontier, United, WestJet $352

Cheap Domestic Flights to Ottawa - YOW

FlightsAirlineLowest Price
Springfield to Chicago American, United $288
Evansville to New York American, United $401
Springfield to New York American, United $409
Springfield to Boston American, Alaska, United $440

Cheap International Flights to Ottawa - YOW

FlightsAirlineLowest Price
Evansville to Ottawa American, Air Canada, United Check Dates
Springfield to Ottawa American, United Check Dates
Springfield to Montreal American, United Check Dates
Cheap Flights from St Louis to Ottawa, ON, Canada, from $302 Round trip from STL to YOW