
Book Cheap United flight from Toronto (YYZ) to St. Louis (STL) from CA $313
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Cheapest United Flights from Toronto (YYZ) to St. Louis (STL)
The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were CA $585 round trip and CA $313 one way. Prices and availability subject to change. Additional terms may apply.
STL From YYZ Economy Coach Packages on Similar Airlines



Frequently asked questions
Grab a great United flight from YYZ to STL
To find a great deal on United flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying United Toronto to St. Louis gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with United between Toronto and St. Louis
United has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Toronto to St. Louis with United are December.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your United flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to St. Louis

Hilton St. Louis Airport
Tesla charger does not agrr
Reviewed on Dec 3, 2025

Pear Tree Inn St. Louis Airport
The shuttle service was timely and useful. Landon,at the front desk, did an amazing job helping us with our issues with Expedia! He was very personable and helpful!
Reviewed on Dec 9, 2025

Wingate by Wyndham St. Louis Airport
Very clean. Mattress was rather worn. But otherwise it was a great experience.
Reviewed on Dec 10, 2025
Want more than a(n) United Flight from Toronto to St. Louis?
Popular United Flight Routes from YYZ
Domestic
- Toronto to Reno (YYZ - RNO)
- Winnipeg to Tampa (YWG - TPA)
- Toronto to Seoul (YYZ - ICN)
- Québec to Rapid City (YQB - RAP)
- Montreal to Rapid City (YUL - RAP)
- Vancouver to Rapid City (YVR - RAP)
- Toronto to Las Vegas (YYZ - LAS)
- Vancouver to Manila (YVR - MNL)
- Vancouver to Las Vegas (YVR - LAS)
- Saint John to Sioux Falls (YSJ - FSD)
International
- Montreal to Las Vegas (YUL - LAS)
- Toronto to Punta Cana (YYZ - PUJ)
- Toronto to Las Vegas (YYZ - LAS)
- Toronto to Seoul (YYZ - ICN)
- Montreal to Tampa (YUL - TPA)
- Vancouver to Las Vegas (YVR - LAS)
- Vancouver to Reno (YVR - RNO)
- Vancouver to Rapid City (YVR - RAP)
- Vancouver to Seoul (YVR - ICN)
- Toronto to Las Vegas (YYZ - LAS)
Most Popular
- Ottawa to Vancouver (YOW - YVR)
- Vancouver to Palm Springs (YVR - PSP)
- Vancouver to Las Vegas (YVR - LAS)
- Swoop Hamilton (YHM) to St. Petersburg - Clearwater (PIE) flights
- WestJet Hamilton (YHM) to Charlottetown (YYG) flights
- Montreal to Fort Lauderdale (YUL - FLL)
- Vancouver to San Diego (YVR - SAN)
- Toronto to Seattle (YYZ - SEA)
- Toronto to Dallas (YYZ - DFW)
- Air Canada Toronto (YYZ) to Myrtle Beach (MYR) flights
- JetBlue Airways Buffalo (BUF) to Fort Lauderdale (FLL) flights
- WestJet Kitchener (YKF) to Goffs (YHZ) flights
- Swoop Hamilton (YHM) to Sanford (SFB) flights
- WestJet Kitchener (YKF) to Calgary (YYC) flights
- Porter Airlines Toronto (YTZ) to Ottawa (YOW) flights
- Porter Airlines Toronto (YTZ) to Philadelphia (PHL) flights
- Hamilton to Calgary (YHM - YYC)
- Porter Airlines Toronto (YTZ) to Montreal (YUL) flights
- Swoop Hamilton (YHM) to St. John's (YYT) flights
- WestJet London (YXU) to Calgary (YYC) flights
- Porter Airlines Toronto (YTZ) to North Bay (YYB) flights
- Air Canada Toronto (YYZ) to Fort Lauderdale (FLL) flights
- Toronto to Las Vegas (YYZ - LAS)
- Hamilton to Edmonton (YHM - YEG)
- Swoop Abbotsford (YXX) to Las Vegas (LAS) flights
- Swoop Winnipeg (YWG) to Hamilton (YHM) flights
- WestJet Kitchener (YKF) to Ottawa (YOW) flights
- Swoop London (YXU) to Abbotsford (YXX) flights
- Kitchener to Vancouver (YKF - YVR)
- Seattle to Delhi (SEA - DEL)
