Which airlines fly to St. Louis?

For flights from South Africa to St. Louis, most momondo users will book with popular airlines such as United Airlines, British Airways, Virgin Atlantic and KLM. Depending on what airport you fly from, you may have other airlines to choose from.

KLM Flights to St. Louis

KLM is a popular choice for users travelling to St. Louis. It operates 23 flights every week to St. Louis, most often flying from Atlanta Hartsfield-Jackson. KLM ticket prices will depend on when and where you need to fly from - deals as low as R17 317 (from Cape Town Intl) have been found by momondo users. In 1 385 reviews, momondo users have rated KLM at an average score of 7,8/10.

Virgin Atlantic Flights to St. Louis

R17 777 is the best return Virgin Atlantic deal to St. Louis found on momondo in the last few days. The deal departed from Johannesburg OR Tambo. Virgin Atlantic has 26 flights to St. Louis most weeks, with prices varying by availability. 664 momondo users have reviewed Virgin Atlantic, scoring the airline a 7,4/10 on average.

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

The average flight duration from South Africa to St. Louis depends on which airport you fly into and out of. Flying from Johannesburg OR Tambo to Lambert-St Louis is 32h 24m on average, while flying from Cape Town Intl to Lambert-St Louis is 28h 52m on average. Lambert-St Louis is the most popular airport in St. Louis.

R11 528 Cheap Flights to St. Louis in 2025/26

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Find the cheapest flights from South Africa to St. Louis

Round-trip

One-way

Cheap return flights

20:40 - 17:29JNB-STL

27h 49m2 stops

10:45 - 19:00STL-JNB

24h 15m2 stops

R17 935Delta

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Tue, Oct 14 - Tue, Nov 4

20:40 - 15:55JNB-STL

26h 15m2 stops

13:30 - 22:05STL-JNB

24h 35m2 stops

R18 109Delta

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Wed, Oct 15 - Tue, Nov 4

19:35 - 21:04JNB-STL

33h 29m2 stops

16:07 - 10:25STL-JNB

34h 18m2 stops

R18 300British Airways

Find Deal

Wed, Feb 4 - Sun, Feb 8

22:00 - 13:47JNB-STL

47h 47m2 stops

13:48 - 10:25STL-JNB

36h 37m2 stops

R18 317British Airways

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Wed, Feb 4 - Sun, Feb 8

21:55 - 15:55JNB-STL

25h 00m1 stop

17:15 - 19:00STL-JNB

17h 45m1 stop

R19 741Delta

Find Deal

Wed, Oct 15 - Tue, Nov 4

19:45 - 22:45JNB-STL

34h 00m2 stops

16:35 - 18:35STL-JNB

42h 00m2 stops

R19 775United Airlines

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Tue, Oct 28 - Tue, Nov 4

23:45 - 21:04CPT-STL

29h 19m2 stops

19:03 - 5:50STL-CPT

26h 47m2 stops

R21 182KLM

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Thu, Nov 20 - Fri, Jan 2

21:55 - 22:04JNB-STL

31h 09m1 stop

17:15 - 19:00STL-JNB

17h 45m1 stop

R21 477Virgin Atlantic

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Tue, Oct 14 - Tue, Nov 4

21:30 - 16:07CPT-STL

26h 37m1 stop

19:03 - 19:15STL-CPT

40h 12m1 stop

R24 845Virgin Atlantic

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Thu, Nov 20 - Fri, Jan 2

20:50 - 10:52CPT-STL

22h 02m1 stop

11:50 - 18:00STL-CPT

22h 10m1 stop

R147 490United Airlines

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Thu, Nov 20 - Tue, Dec 2

Fly from

Route

Depart

Return

Price

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Tue 14/10

20:40-17:29

2 stops27h 49m

Lambert-St Louis

Tue 4/11

10:45-19:00

2 stops24h 15m

R17 935

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 15/10

20:40-15:55

2 stops26h 15m

Lambert-St Louis

Tue 4/11

13:30-22:05

2 stops24h 35m

R18 109

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 4/2

19:35-21:04

2 stops33h 29m

Lambert-St Louis

Sun 8/2

16:07-10:25

2 stops34h 18m

R18 300

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 4/2

22:00-13:47

2 stops47h 47m

Lambert-St Louis

Sun 8/2

13:48-10:25

2 stops36h 37m

R18 317

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 15/10

21:55-15:55

1 stop25h 00m

Lambert-St Louis

Tue 4/11

17:15-19:00

1 stop17h 45m

R19 741

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Tue 28/10

19:45-22:45

2 stops34h 00m

Lambert-St Louis

Tue 4/11

16:35-18:35

2 stops42h 00m

R19 775

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Thu 20/11

23:45-21:04

2 stops29h 19m

Lambert-St Louis

Fri 2/1

19:03-5:50

2 stops26h 47m

R21 182

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Tue 14/10

21:55-22:04

1 stop31h 09m

Lambert-St Louis

Tue 4/11

17:15-19:00

1 stop17h 45m

R21 477

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Thu 20/11

21:30-16:07

1 stop26h 37m

Lambert-St Louis

Fri 2/1

19:03-19:15

1 stop40h 12m

R24 845

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Thu 20/11

20:50-10:52

1 stop22h 02m

Lambert-St Louis

Tue 2/12

11:50-18:00

1 stop22h 10m

R147 490

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

Prices

Other information

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

In general, November is the cheapest month to fly from South Africa to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around R18 039. If you aren’t able to travel to St. Louis during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of R18 786.

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

The cheapest day to depart from South Africa to St. Louis is on a Wednesday when prices can be found for as low as R17 390. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to St. Louis on Saturday is R23 525.

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

Our data shows that the cheapest South Africa to St. Louis flights are usually those with departure times at midday. Our users have found flights to St. Louis at midday for as low as R17 412. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around R23 347 per ticket.

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

You are more likely to see cheaper flights to St. Louis from South Africa when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around R21 642 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 South Africa for as low as R19 636 on momondo.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport

Find flights from Johannesburg OR Tambo Airport to St. Louis

CHEAPEST MONTH TO FLY TO ST. LOUIS FROM JOHANNESBURG OR TAMBO AIRPORT	November	17% cheaper	Flying from Johannesburg OR Tambo Airport to St. Louis costs on average just R18 039 in November
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM JOHANNESBURG OR TAMBO AIRPORT	April	25% more expensive	It costs about R27 206 for flights to St. Louis from Johannesburg OR Tambo Airport in April
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM JOHANNESBURG OR TAMBO AIRPORT	June	539% more users visited	More momondo users searched in flights to St. Louis from Johannesburg OR Tambo Airport in June than any other month

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price	R11 528
Best Round-Trip Price	R17 935
Fastest flight time	20h 52m
Popular in	January

The best one-way flight price to St. Louis from South Africa in the last 72 hours is R11 528 (Cape Town Intl to Lambert-St Louis).

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The best round-trip flight price to St. Louis from South Africa in the last 72 hours is R17 935 (Johannesburg OR Tambo to Lambert-St Louis).

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The fastest flight to St. Louis from South Africa takes 20h 52m (Johannesburg OR Tambo to Lambert-St Louis).

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January has the highest demand for flights to St. Louis, with a 19% price increase on average.

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Frequently asked questions about flying to St. Louis

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

The best time to book a flight to St. Louis from South Africa is 82 days out, which is when prices tend to be around R21 642.

Is there an alternative airport near St. Louis?

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

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

Prices for flights to Lambert-St Louis Airport refresh daily.

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

The number of operators available for flights to Lambert-St Louis Airport is 7 as of September 2025.

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

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 stopovers. It is recommended that you verify with the airline you are booking with for travel to Lambert-St Louis Airport.

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

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 licence, 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.

Why use momondo?

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

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.

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

All flight searches to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for flights to St. Louis, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.