Question 1

Why should I use momondo to find a flight deal to St. Louis?

Accepted Answer

It is quick and easy to find flights to St. Louis on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

Question 2

Can I find flights to St. Louis with flexible booking policies on momondo?

Accepted Answer

Yes. momondo enables you to select and highlight flights to St. Louis with this policy.

Question 3

How can momondo help me find flights to St. Louis?

Accepted Answer

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to St. Louis.

Question 4

I’m not ready to book a flight to St. Louis right now. Can momondo alert me if prices change?

Accepted Answer

Of course. momondo tracks the price of St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

Question 5

Is there an alternative airport near St. Louis?

Accepted Answer

Belleville Airport, Marion Williamson County Airport or Springfield Capital Airport can be an alternative airport used for travel to St. Louis.

Question 6

Which airlines fly to St. Louis?

Accepted Answer

Based on our data, the most popular airlines that fly to St. Louis from Canada are Air Canada, United Airlines, WestJet and Delta. There may also be other airline options depending on where in Canada you’re flying from.

Question 7

American Airlines Flights to St. Louis

Accepted Answer

There are 40 American Airlines flights to St. Louis in a normal week. The most common departure point is Dallas/Fort Worth and the best American Airlines ticket price seen on momondo is C$ 373 (last 72 hours, from Toronto Pearson Intl, to St. Louis). American Airlines has a score of 7.2 from 11,042 user reviews on momondo.

Question 8

WestJet Flights to St. Louis

Accepted Answer

WestJet flights to St. Louis can start from as low as C$ 477 (round-trip, from Edmonton, found in the last 72 hours). Over 32 flights that WestJet operates to St. Louis in a normal week, prices can vary significantly. The most popular WestJet flight to St. Louis is from Atlanta Hartsfield-Jackson. WestJet has been rated 7.2/10 by momondo users, in 3,193 reviews.

Question 9

When did momondo last update prices for flights to Lambert-St Louis Airport?

Accepted Answer

Prices for flights to Lambert-St Louis Airport were last updated today.

Question 10

How many operators does momondo search for flights to Lambert-St Louis Airport?

Accepted Answer

As of December 2025, there are 6 operators available to choose from for flights to Lambert-St Louis Airport.

Question 11

How old do you have to be to fly to Lambert-St Louis Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Lambert-St Louis Airport.

Question 12

What documentation or ID do you need to fly to Lambert-St Louis Airport?

Accepted Answer

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Question 13

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

Accepted Answer

The month of June is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 514. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Canada, when ticket prices are also cheap, with an average price of C$ 548.

Question 14

What is the cheapest time of day to depart on your flight to St. Louis?

Accepted Answer

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 541. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 667 on average. Flights to St. Louis from Canada at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 15

How long does it take to fly to St. Louis?

Accepted Answer

Flight times vary depending on what airport in Canada you fly out of and what airport in St. Louis you fly into. For example, flying from Toronto Pearson Intl to Lambert-St Louis takes 2h 14m on average. On the other hand, flying from Vancouver Intl to Lambert-St Louis takes 8h 53m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Question 16

How far in advance should I book a flight to St. Louis?

Accepted Answer

You are more likely to see cheaper flights to St. Louis from Canada when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 649 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Canada for as low as C$ 497 on momondo.

Question 17

What is the cheapest day to depart on your flight to St. Louis?

Accepted Answer

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 563. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 765.

CHEAPEST MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	June	17% cheaper	Flying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 544 in June
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	July	13% more expensive	It costs about C$ 736 for flights to St. Louis from Toronto Pearson Intl Airport in July
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	May	393% more users visited	More momondo users searched in flights to St. Louis from Toronto Pearson Intl Airport in May than any other month

Best One-Way Price	C$ 206
Best Round-Trip Price	C$ 336
Fastest flight time	8h 47m
Popular in	June

C$ 206 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

The month of June is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 514. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Canada, when ticket prices are also cheap, with an average price of C$ 548.

What is the absolute cheapest flight to St. Louis?

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What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 563. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 765.

What is the cheapest time of day to depart on your flight to St. Louis?

How far in advance should I book a flight to St. Louis?

How long does it take to fly to St. Louis?

Cheapest flights to Lambert-St Louis

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Frequently asked questions about flying to St. Louis

Is there an alternative airport near St. Louis?

When did momondo last update prices for flights to Lambert-St Louis Airport?

How many operators does momondo search for flights to Lambert-St Louis Airport?

How old do you have to be to fly to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

Travelling to a place near St. Louis?

Why use momondo?

Why should I use momondo to find a flight deal to St. Louis?

Can I find flights to St. Louis with flexible booking policies on momondo?

How can momondo help me find flights to St. Louis?

I’m not ready to book a flight to St. Louis right now. Can momondo alert me if prices change?

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