Featured airlines
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Travel information
Travel information
Origin airport | Lambert-St. Louis Intl. |
Destination airport | Macdonald-Cartier Intl. |
Distance | 1405 km |
Book with confidence
Book with confidence
Perfect flights from St. Louis to Ottawa
Your Journey from St. Louis to Ottawa
Start your unforgettable journey with Expedia. Our broad selection of flights from St. Louis to Ottawa caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
Choosing Your Ideal Flight
With Expedia, you have access to a wide range of airlines, including . Our selection of flights from Lambert-St. Louis Intl. to Macdonald-Cartier Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from airlines, you're bound to find the perfect flight.
Maximizing Value with St. Louis to Ottawa Flights
Experience the joy of finding cheap flights from Lambert-St. Louis Intl. to Macdonald-Cartier Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares and roundtrip prices *.
Pre-Flight Essentials
Ensure a smooth journey from St. Louis to Ottawa with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
Experience the Vibrant Ottawa
Picture yourself stepping off the plane in Ottawa and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
Added Convenience on Your St. Louis to Ottawa Flight
Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from St. Louis to Ottawa.
Beyond the Flight – Exploring Ottawa
With Expedia, your adventure extends beyond the flight. Explore Ottawa at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
Book Your Flight from St. Louis to Ottawa with Confidence
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from St. Louis to Ottawa with confidence. Book your travel arrangements with Expedia today.
*Note: Prices may vary based on availability and are subject to change.
Frequently asked questions
Frequently asked questions
Frequently asked questions
Explore a world of travel with Expedia
Explore a world of travel with Expedia
- Trending Routes
- Trending Flights
- Top Flights Destinations
- More Carriers
- Cheap Flights from Other Airports
- Expedia's Latest Trends
Top Routes from St. Louis
Top Routes to Ottawa
Top Flight Destinations
- Flights to Toronto
- Flights to Vancouver
- Flights to Niagara Falls
- Flights to Montreal
- Flights to Banff
- Flights to Calgary
- Flights to Edmonton
- Flights to Ottawa
- Flights to Whistler
- Flights to Canmore
- Flights to Victoria
- Flights to Winnipeg
- Flights to Halifax
- Flights to Saskatoon
- Flights to Kelowna
- Flights to The Blue Mountains
- Flights to Kingston
- Flights to Regina
Flights
Flights from George Town (PEN) to Philadelphia (PHL)Flights from Sepang (KUL) to Anchorage (ANC)Flights from NYC-All Airports to Harry Reid Intl.Flights from Philadelphia (PHL) to Sepang (KUL)Flights from George Town (PEN) to Toronto (YYZ)Flights from Singapore (SIN) to Toronto (YYZ)Flights from Sepang (KUL) to Dallas (DFW)Flights from Toronto (YYZ) to Calgary (YYC)Flights from William P. Hobby to NYC-All AirportsFlights from Sepang (KUL) to Toronto (YYZ)Flights from NYC-All Airports to Cincinnati - Northern Kentucky Intl.Flights from Kuching Intl. to NYC-All AirportsFlights from NYC-All Airports to IlulissatFlights from Toronto (YYZ) to George Town (PEN)Flights from Toronto (YYZ) to Vancouver (YVR)Flights from NYC-All Airports to Jackson HoleFlights from Pearson Intl. to NYC-All AirportsFlights from NYC-All Airports to Los Angeles Intl.Flights from LON-All Airports to NYC-All AirportsFlights from Dallas (DFW) to Sepang (KUL)Flights from Vancouver (YVR) to Toronto (YYZ)Flights from NYC-All Airports to Malacca Intl. AirportFlights from Haidong (XNN) to Vandalia (DAY)Flights from Kota Kinabalu (BKI) to Toronto (YYZ)Flights from Toronto (YYZ) to Sepang (KUL)Flights from Sepang (KUL) to Louisville (SDF)Flights from Sepang (KUL) to San Diego (SAN)Flights from Kuala Lumpur Intl. to NYC-All AirportsFlights from Bangkok (BKK) to Toronto (YYZ)Flights from Texas (SPS) to Ivujivik (YIK)
*Available to Expedia members.