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Cheap flights from Riyadh to St. Louis from $857

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Riyadh to St. Louis departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Riyadh to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
1:00 am - 10:59 pmRUH  Riyadh King Khaled Intl-STL Lambert-St Louis
30h 59m2 stops London Heathrow Dallas/Fort Worth
British Airways Logo
1:06 pm - 10:50 pmSTL  Lambert-St Louis-RUH Riyadh King Khaled Intl
24h 44m2 stops Chicago O'Hare Intl London Heathrow
$857British Airways
Mon, Jan 25 - Fri, Jan 29
Air Canada Logo
2:00 am - 3:26 pmRUH  Riyadh King Khaled Intl-STL Lambert-St Louis
46h 26m2 stops Frankfurt am Main Toronto Pearson Intl
Air Canada Logo
4:05 pm - 7:55 pmSTL  Lambert-St Louis-RUH Riyadh King Khaled Intl
18h 50m2 stops Toronto Pearson Intl Frankfurt am Main
$1,131Air Canada
Thu, Nov 12 - Mon, Nov 16
Air Canada Logo
2:00 am - 3:26 pmRUH  Riyadh King Khaled Intl-STL Lambert-St Louis
46h 26m2 stops Frankfurt am Main Toronto Pearson Intl
Air Canada Logo
4:05 pm - 7:55 pmSTL  Lambert-St Louis-RUH Riyadh King Khaled Intl
18h 50m2 stops Toronto Pearson Intl Frankfurt am Main
$1,134Air Canada
Thu, Nov 12 - Mon, Nov 16
Air Canada Logo
2:00 am - 3:26 pmRUH  Riyadh King Khaled Intl-STL Lambert-St Louis
46h 26m2 stops Frankfurt am Main Toronto Pearson Intl
Air Canada Logo
4:05 pm - 7:55 pmSTL  Lambert-St Louis-RUH Riyadh King Khaled Intl
18h 50m2 stops Toronto Pearson Intl Frankfurt am Main
$1,140Air Canada
Thu, Nov 12 - Mon, Nov 16

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Air Canada flights from Riyadh to St. Louis

Our best Air Canada deals on Riyadh to St. Louis flight tickets
Air Canada
Nov 12
RUH2:00 amRiyadh King Khaled Intl
46h 26m
2 stops
STL3:26 pmLambert-St Louis
Nov 16
STL4:05 pmLambert-St Louis
18h 50m
2 stops
RUH7:55 pmRiyadh King Khaled Intl
$1,131
Air Canada
Nov 12
RUH2:00 amRiyadh King Khaled Intl
46h 26m
2 stops
STL3:26 pmLambert-St Louis
Nov 16
STL4:05 pmLambert-St Louis
18h 50m
2 stops
RUH7:55 pmRiyadh King Khaled Intl
$1,134
Air Canada
Nov 12
RUH2:00 amRiyadh King Khaled Intl
46h 26m
2 stops
STL3:26 pmLambert-St Louis
Nov 16
STL4:05 pmLambert-St Louis
18h 50m
2 stops
RUH7:55 pmRiyadh King Khaled Intl
$1,140

momondo Fare Finder

 
Customize your flight search to find flights from Riyadh to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 8, 2026.
Use the filters below to find and compare flights from Riyadh to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Mon 1/25

1:00 am-10:59 pm

2 stops30h 59m

Lambert-St Louis

Fri 1/29

1:06 pm-10:50 pm

2 stops24h 44m

$857

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 11/12

2:00 am-3:26 pm

2 stops46h 26m

Lambert-St Louis

Mon 11/16

4:05 pm-7:55 pm

2 stops18h 50m

$1,131

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 11/12

2:00 am-3:26 pm

2 stops46h 26m

Lambert-St Louis

Mon 11/16

4:05 pm-7:55 pm

2 stops18h 50m

$1,134

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 11/12

2:00 am-3:26 pm

2 stops46h 26m

Lambert-St Louis

Mon 11/16

4:05 pm-7:55 pm

2 stops18h 50m

$1,140
Cheapest one-way

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 8/20

6:25 am-7:45 am

2 stops33h 20m

$928

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 8/20

6:25 am-7:45 am

2 stops33h 20m

$929

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 8/20

6:25 am-7:45 am

2 stops33h 20m

$1,018

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 8/20

6:25 am-7:45 am

2 stops33h 20m

$1,022
Quickest one-way

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 8/20

11:35 pm-2:02 pm

3 stops22h 27m

$2,587

RiyadhSt. Louis

RUH Riyadh King Khaled Intl - STL Lambert-St Louis

RUHSTL

Riyadh King Khaled Intl

Thu 8/20

11:35 pm-2:02 pm

3 stops22h 27m

$3,336

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

How to get the cheapest flight ticket from Riyadh to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Riyadh King Khaled Intl to Lambert-St Louis?

Royal Jordanian is the most popular carrier operating from Riyadh King Khaled Intl to Lambert-St Louis

When to book flights from Riyadh to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Riyadh to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Riyadh to St. Louis (RUH to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Riyadh to St. Louis

Fastest flight time

24h 59m

Direct flights

None
The fastest flight from Riyadh to St. Louis takes 24h 59m
There are no direct flights from Riyadh to St. Louis. There are no popular flight routes from Riyadh to St. Louis.
Search flight deals

Frequently asked questions about flying from Riyadh to St. Louis

  • How far is Riyadh King Khaled Intl to Lambert-St Louis by plane?

    Lambert-St Louis is 7245.2 mi away from Riyadh King Khaled Intl. A reasonable flight in good conditions will take 24h 59m.

  • When did momondo last update prices for flights from Riyadh King Khaled Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Riyadh King Khaled Intl Airport to Lambert-St Louis Airport were last updated today.

  • How old do you have to be to fly from Riyadh King Khaled Intl Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Riyadh King Khaled Intl Airport to Lambert-St Louis Airport.

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

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
Alton
O'Fallon
Clayton
Farmington
Fenton
Wentzville
Festus
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Riyadh to St. Louis for you.

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

Yes. momondo allows you to filter the results for Riyadh to St. Louis flights to just show those with flexible booking policies.

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

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 from Riyadh to St. Louis.

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

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

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