Cheap flights from St. Louis to Ottawa

Round-trip
1 adult
Economy
From?
To?
Tue 7/27
Tue 8/3

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Lambert-St Louis to Ottawa.
View current Canada travel restrictions

Flight information for St. Louis to Ottawa
(STL to YOW)

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Ottawa
Best Price Found$417The best flight deal from St. Louis to Ottawa found on momondo in the last 72 hours is $417
Fastest flight time5h 55mThe fastest flight from St. Louis to Ottawa takes 5h 55m
Direct flightsNoneThere are no direct flights from St. Louis to Ottawa. Popular non-direct route for this connection is Lambert-St Louis Airport - Ottawa Airport.
Airports in Ottawa1 airportThere is 1 airport near Ottawa: Ottawa (YOW)

How to get the cheapest flight ticket from St. Louis to Ottawa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from St. Louis to Ottawa?

April

The cheapest time of year to fly to Ottawa from St. Louis is April. Most expensive is October

What is the cheapest day to depart St. Louis for Ottawa?

Thursday

The cheapest day of the week is typically Thursday. The most expensive is typically Saturday

When is the cheapest time to fly from St. Louis to Ottawa?

in the evening

St. Louis to Ottawa flights are approximately 41% more expensive at noon than in the evening

What is the cheapest airline that flies to Ottawa from St. Louis?

WestJet

Air Canada, American Airlines, and Delta are the most popular carriers operating from St. Louis to Ottawa

What is the cheapest St. Louis to Ottawa flight route?

Lambert-St Louis - Ottawa

Fly from Lambert-St Louis to Ottawa for the best St. Louis - Ottawa flight prices


Easily compare round-trip flights from St. Louis to Ottawa

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Ottawa by changing tabs
Air Canada
Aug 28
STL9:41 amLambert-St Louis
9h 49m
2 stops
YOW7:30 pmOttawa
Sep 5
YOW2:00 amOttawa
6h 55m
2 stops
STL8:55 amLambert-St Louis
Air Canada
Aug 10
STL2:40 amLambert-St Louis
9h 33m
2 stops
YOW12:13 pmOttawa
Aug 17
YOW8:00 amOttawa
12h 56m
2 stops
STL8:56 pmLambert-St Louis
United Airlines
Oct 22
STL2:39 amLambert-St Louis
14h 23m
2 stops
YOW5:02 pmOttawa
Oct 25
YOW2:00 amOttawa
8h 59m
2 stops
STL10:59 amLambert-St Louis
United Airlines
Aug 6
STL4:39 amLambert-St Louis
12h 21m
2 stops
YOW5:00 pmOttawa
Aug 19
YOW1:45 amOttawa
11h 02m
2 stops
STL12:47 pmLambert-St Louis
Multiple Airlines
Sep 3
STL2:40 amLambert-St Louis
14h 20m
2 stops
YOW5:00 pmOttawa
Sep 5
YOW1:45 amOttawa
9h 21m
2 stops
STL11:06 amLambert-St Louis
United Airlines
Aug 12
STL6:30 amLambert-St Louis
10h 30m
2 stops
YOW5:00 pmOttawa
Aug 18
YOW2:00 amOttawa
15h 51m
2 stops
STL5:51 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Ottawa

If you're looking for one-way flights from St. Louis to Ottawa, view some of our deals below provided by American Airlines
American Airlines
STLLambert-St Louis
4h 25m
YOWOttawa

Best airlines flying from St. Louis to Ottawa

Compare and see reviews for airlines that fly from St. Louis to Ottawa with momondo
AirlineRatingFree CancellationPrice
WestJet
PriceFrom $112
Free Cancellation
Rating
7.6
7.7

Boarding

7.6

Comfort

8.0

Crew

7.6

Entertainment

6.7

Food

Reviews

Pros: It was on time and not overbooked

Cons: Nothing it was economy

1 / 10
American Airlines
PriceFrom $125
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

1 / 10
Delta
PriceFrom $127
Free Cancellation
Rating
8.2
8.3

Boarding

8.5

Comfort

8.3

Crew

7.9

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $149
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!

1 / 10
Air Canada
PriceFrom $150
Free Cancellation
Rating
7.3
7.6

Boarding

7.2

Comfort

7.9

Crew

7.3

Entertainment

5.7

Food

Reviews

Cons: The air conditioning

1 / 10

  • Are airlines flying from Lambert-St Louis to Ottawa offering flexible cancellation due to COVID-19?

    To ease the stress of booking flights, some of our airline partners flying from Lambert-St Louis to Ottawa are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: Delta, United Airlines, and Air Canada.

  • How far is Lambert-St Louis to Ottawa by plane?

    There are 877.2 mi between Lambert-St Louis and Ottawa. By plane, this route typically takes 7h 35m.


Can I fly to Ottawa from Lambert-St Louis right now?

Information is based on travel restrictions from Lambert-St Louis to Ottawa

Most visitors from Lambert-St Louis will not be allowed to enter Ottawa.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Ottawa.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Ottawa.

Documents
Compassionate entry for travellers and limited release from quarantine - Foreign nationals traveling without an advance written approval for an exemption of a border restriction may be denied entry into Canada.


Can I fly back to Lambert-St Louis from Ottawa?

Returning to Lambert-St Louis from Ottawa

COVID-19 testing requirements
Visitors from Ottawa must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Ottawa are not required to quarantine after entering Lambert-St Louis.

If you are planning to travel to Ottawa at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for St. Louis to Ottawa

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Kansas City to Toronto Flights
Fastest flight time2h 18m
Cheapest price$325
St. Louis to Toronto Flights
Fastest flight time3h 32m
Cheapest price$326
Kansas City to Ottawa Flights
Fastest flight time6h 50m
Cheapest price$690