Cheap flights from Ottawa to St Louis

Flight FAQs

From Ottawa to St Louis

Can I find flights from Ottawa to St Louis for under C$ 377 on Cheapflights?

Yes, there are multiple flights from Ottawa to St Louis for under C$ 377. The cheapest flight booked recently is on United Airlines for just C$ 366, but on average you can expect to pay C$ 393.

What safety measures are being taken by airlines flying from Ottawa to Lambert-St Louis to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travellers flying from Ottawa to Lambert-St Louis are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Ottawa to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of our airline partners flying from Ottawa to Lambert-St Louis have new flexible policies in place due to COVID-19. WestJet, Air Canada, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like WestJet with this kind of flexibility.

Are there direct flights from Ottawa to St Louis for under C$ 377 on Cheapflights?

There are no direct flights from Ottawa to St Louis, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in Ottawa or St Louis?

When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Ottawa is roughly less than St Louis. You can assume this to be the case over the next 16 days.

Is Ottawa weather warmer or cooler than St Louis?

With an average temperature of 32 °C, peak weather can be found in July. As a traveller, expect to see changes in flight prices during that period. The temperatures in St Louis are hotter than in Ottawa.

How long is the flight from Ottawa to St Louis?

For as low as C$ 366, United Airlines can have you in St Louis from Ottawa in 4h 43m. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to flying from Ottawa to St Louis round-trip?

Currently priced at C$ 366, United Airlines will fly you from Ottawa to St Louis and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and WestJet - these airlines can fly you to your destination from C$ 372 and C$ 429, respectively. Users have found that United Airlines is 1% cheaper than the other options available to this destination.