Question 1

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

Accepted Answer

Finding the right flight to St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Question 2

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

Accepted Answer

Yes. All flights to St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Yes. momondo can track flight prices for St. Louis and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

Question 5

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

Accepted Answer

Most flyers found that booking tickets 48 days in advance of their planned departure date is the best time to get cheap flights to St. Louis. During this timeframe, flight prices are around £701. Keep in mind that you might also find cheap flights to St. Louis outside of this time window. In fact, momondo users recently found flights from United Kingdom to St. Louis for £467.

Question 6

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 7

Which airlines fly to St. Louis?

Accepted Answer

British Airways is the airline most momondo users in United Kingdom opt for when booking flights to St. Louis. Finnair, Virgin Atlantic and United Airlines are also popular choices when flying to St. Louis from United Kingdom. Most major airlines flying from United Kingdom to St. Louis will offer flights on a regular basis, though your options may vary depending on what airport you fly from.

Question 8

Delta Flights to St. Louis

Accepted Answer

Delta operates around 29 flights into St. Louis in any given week. The most common departure point for these flights was from Atlanta Hartsfield-Jackson, with the best round-trip Delta deal found being £607 (Manchester to St. Louis). Users have rated Delta 7.9/10 in over 8,125 reviews on momondo.

Question 9

KLM Flights to St. Louis

Accepted Answer

KLM flies to St. Louis 25 times per week usually, making it a popular airline to fly with, particularly when heading to St. Louis from Atlanta Hartsfield-Jackson. KLM (rating: 7.7, 1,443 reviews) varies in price depending on when and where you want to fly to St. Louis from. The best KLM ticket price found on momondo to St. Louis was from Birmingham (£491 round-trip).

Question 10

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

Accepted Answer

Prices for flights to Lambert-St Louis Airport are refreshed on a daily basis.

Question 11

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

Accepted Answer

As of January 2026, there are 14 operators available to choose from for flights to Lambert-St Louis Airport.

Question 12

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

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Lambert-St Louis Airport.

Question 13

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

Accepted Answer

The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Question 14

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 United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around £711 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from United Kingdom for as low as £596 on momondo.

Question 15

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

Accepted Answer

If you’re flying from a popular airport in United Kingdom, such as London Heathrow or Manchester, and flying into St. Louis, then you can expect flight times to average 9h 05m and 13h 20m, respectively.

Question 16

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

Accepted Answer

Our data shows that Saturday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as £581. Flights from United Kingdom to St. Louis on a Friday will generally be more expensive and average around £658. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 17

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

Accepted Answer

The month of March is, on average, the cheapest month to fly to St. Louis from United Kingdom, with most prices found around £529. If you’re not able to fly to St. Louis in March, then January is your next best option. Flight prices from United Kingdom to St. Louis during January average around £548.

CHEAPEST MONTH TO FLY TO ST. LOUIS FROM LONDON HEATHROW AIRPORT	February	23% cheaper	Flying from London Heathrow Airport to St. Louis costs on average just £550 in February
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM LONDON HEATHROW AIRPORT	August	17% more expensive	It costs about £834 for flights to St. Louis from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM LONDON HEATHROW AIRPORT	July	386% more users visited	More momondo users searched in flights to St. Louis from London Heathrow Airport in July than any other month

Best One-Way Price	£253
Best Round-Trip Price	£422
Fastest flight time	13h 20m
Popular in	August

£253 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 23/2. 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 day to depart on your flight to St. Louis?

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

If you’re flying from a popular airport in United Kingdom, such as London Heathrow or Manchester, and flying into St. Louis, then you can expect flight times to average 9h 05m and 13h 20m, respectively.

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Frequently asked questions about flying to St. Louis

How far in advance should I book a flight 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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