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 8 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 197 (from Cape Town Intl) have been found by momondo users. In 1 406 reviews, momondo users have rated KLM at an average score of 7,7/10.

Virgin Atlantic Flights to St. Louis

R17 727 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 6 flights to St. Louis most weeks, with prices varying by availability. 671 momondo users have reviewed Virgin Atlantic, scoring the airline a 7,5/10 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 28h 14m on average, while flying from Cape Town Intl to Lambert-St Louis is 29h 39m on average. Lambert-St Louis is the most popular airport in St. Louis.

R15 120 Cheap Flights to St. Louis in 2025/26

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20:50 - 10:13CPT-STL

21h 23m1 stop

8:30 - 16:10STL-CPT

23h 40m1 stop

R17 379United Airlines

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Fri, Feb 13 - Mon, Feb 23

20:50 - 16:02CPT-STL

27h 12m2 stops

12:15 - 16:10STL-CPT

19h 55m1 stop

R17 448United Airlines

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Fri, Feb 13 - Sat, Feb 21

21:30 - 23:40CPT-STL

34h 10m1 stop

17:00 - 9:45STL-CPT

32h 45m2 stops

R17 586Multiple Airlines

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Mon, Feb 16 - Tue, Feb 24

21:30 - 16:01CPT-STL

26h 31m1 stop

11:51 - 19:15STL-CPT

23h 24m1 stop

R17 965Delta

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Tue, Feb 17 - Mon, Feb 23

19:35 - 18:14JNB-STL

30h 39m2 stops

17:20 - 10:25STL-JNB

33h 05m2 stops

R18 379British Airways

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Wed, Feb 4 - Sun, Feb 8

19:35 - 18:14JNB-STL

30h 39m2 stops

17:20 - 10:25STL-JNB

33h 05m2 stops

R18 414British Airways

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Wed, Feb 4 - Sun, Feb 8

21:55 - 20:39JNB-STL

30h 44m1 stop

17:33 - 8:35STL-JNB

55h 02m2 stops

R29 948Virgin Atlantic

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Wed, Feb 4 - Sun, Feb 8

20:50 - 20:45CPT-STL

31h 55m2 stops

17:33 - 19:15STL-CPT

17h 42m1 stop

R31 396Virgin Atlantic

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Wed, Feb 4 - Sun, Feb 8

14:35 - 15:29CPT-STL

32h 54m3 stops

11:34 - 10:30STL-CPT

38h 56m2 stops

R36 689Multiple Airlines

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Mon, Feb 16 - Tue, Feb 24

19:20 - 18:00JNB-STL

30h 40m2 stops

9:30 - 12:10STL-JNB

42h 40m2 stops

R42 051KLM

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Fri, Dec 12 - Fri, Dec 19

Fly from

Route

Depart

Return

Price

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Fri 13/2

20:50-10:13

1 stop21h 23m

Lambert-St Louis

Mon 23/2

8:30-16:10

1 stop23h 40m

R17 379

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Fri 13/2

20:50-16:02

2 stops27h 12m

Lambert-St Louis

Sat 21/2

12:15-16:10

1 stop19h 55m

R17 448

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Mon 16/2

21:30-23:40

1 stop34h 10m

Lambert-St Louis

Tue 24/2

17:00-9:45

2 stops32h 45m

R17 586

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Tue 17/2

21:30-16:01

1 stop26h 31m

Lambert-St Louis

Mon 23/2

11:51-19:15

1 stop23h 24m

R17 965

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 4/2

19:35-18:14

2 stops30h 39m

Lambert-St Louis

Sun 8/2

17:20-10:25

2 stops33h 05m

R18 379

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 4/2

19:35-18:14

2 stops30h 39m

Lambert-St Louis

Sun 8/2

17:20-10:25

2 stops33h 05m

R18 414

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Wed 4/2

21:55-20:39

1 stop30h 44m

Lambert-St Louis

Sun 8/2

17:33-8:35

2 stops55h 02m

R29 948

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Wed 4/2

20:50-20:45

2 stops31h 55m

Lambert-St Louis

Sun 8/2

17:33-19:15

1 stop17h 42m

R31 396

Cape TownSt. Louis

CPT - STL

CPTSTL

Cape Town Intl

Mon 16/2

14:35-15:29

3 stops32h 54m

Lambert-St Louis

Tue 24/2

11:34-10:30

2 stops38h 56m

R36 689

JohannesburgSt. Louis

JNB - STL

JNBSTL

Johannesburg OR Tambo

Fri 12/12

19:20-18:00

2 stops30h 40m

Lambert-St Louis

Fri 19/12

9:30-12:10

2 stops42h 40m

R42 051

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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 R17 845. 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 586.

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 269. 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 361.

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 291. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around R23 184 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 501 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 086 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	18% cheaper	Flying from Johannesburg OR Tambo Airport to St. Louis costs on average just R17 845 in November
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM JOHANNESBURG OR TAMBO AIRPORT	April	25% more expensive	It costs about R27 017 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	536% 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	R15 120
Best Round-Trip Price	R17 379
Fastest flight time	30h 26m
Popular in	January

The best one-way flight price to St. Louis from South Africa in the last 72 hours is R15 120 (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 379 (Cape Town Intl to Lambert-St Louis).

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The fastest flight to St. Louis from South Africa takes 30h 26m (Cape Town Intl 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 40 days out, which is when prices tend to be around R21 501.

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 October 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.