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Cheap flights from Riyadh to St. Louis from $750

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Riyadh to St. Louis departing on 8/29. 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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Find the cheapest flights from Riyadh to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
10:30 pm - 6:29 pm
RUH
-
STL
27h 59m
2 stops
Qatar Airways Logo
1:42 pm - 9:00 pm
STL
-
RUH
23h 18m
2 stops
$1,295Qatar Airways
Fri, Jun 19 - Fri, Jun 26
American Airlines Logo
4:55 am - 7:21 pm
RUH
-
STL
22h 26m
2 stops
American Airlines Logo
11:15 am - 8:10 pm
STL
-
RUH
24h 55m
2 stops
$1,297American Airlines
Thu, Jun 18 - Thu, Jun 25
Turkish Airlines Logo
12:15 pm - 9:22 pm
RUH
-
STL
41h 07m
2 stops
Turkish Airlines Logo
5:32 pm - 12:15 am
STL
-
RUH
22h 43m
2 stops
$1,311Turkish Airlines
Thu, Sep 17 - Sun, Sep 20
Turkish Airlines Logo
12:15 pm - 9:22 pm
RUH
-
STL
41h 07m
2 stops
Turkish Airlines Logo
5:32 pm - 11:15 am
STL
-
RUH
33h 43m
2 stops
$1,316Turkish Airlines
Thu, Sep 17 - Sun, Sep 20
Turkish Airlines Logo
12:15 pm - 9:22 pm
RUH
-
STL
41h 07m
2 stops
Turkish Airlines Logo
5:32 pm - 11:15 am
STL
-
RUH
33h 43m
2 stops
$1,320Turkish Airlines
Thu, Sep 17 - Sun, Sep 20
Turkish Airlines Logo
12:15 pm - 9:22 pm
RUH
-
STL
41h 07m
2 stops
Turkish Airlines Logo
5:32 pm - 11:15 am
STL
-
RUH
33h 43m
2 stops
$1,321Turkish Airlines
Thu, Sep 17 - Sun, Sep 20
Multiple Airlines Logo
2:55 am - 8:25 pm
RUH
-
STL
25h 30m
2 stops
Multiple Airlines Logo
2:15 pm - 9:20 pm
STL
-
RUH
23h 05m
2 stops
$1,357Multiple Airlines
Sun, May 31 - Mon, Jun 8
Multiple Airlines Logo
11:55 pm - 5:23 pm
RUH
-
STL
25h 28m
3 stops
Multiple Airlines Logo
11:18 am - 6:45 pm
STL
-
RUH
23h 27m
2 stops
$1,735Multiple Airlines
Thu, Jun 18 - Thu, Jun 25
American Airlines Logo
12:35 am - 7:30 pm
RUH
-
STL
26h 55m
1 stop
American Airlines Logo
2:32 pm - 9:00 pm
STL
-
RUH
22h 28m
2 stops
$3,874American Airlines
Thu, Jun 18 - Fri, Jun 26
British Airways Logo
12:35 am - 9:23 pm
RUH
-
STL
28h 48m
2 stops
British Airways Logo
9:40 pm - 10:45 pm
STL
-
RUH
17h 05m
1 stop
$4,764British Airways
Wed, Sep 16 - Sun, Sep 20

Turkish Airlines flights from Riyadh to St. Louis

Our best Turkish Airlines deals on Riyadh to St. Louis flight tickets
Turkish Airlines
Sep 17
RUH12:15 pmRiyadh King Khaled Intl
41h 07m
2 stops
STL9:22 pmLambert-St Louis
Sep 20
STL5:32 pmLambert-St Louis
22h 43m
2 stops
RUH12:15 amRiyadh King Khaled Intl
$1,311
Turkish Airlines
Sep 17
RUH12:15 pmRiyadh King Khaled Intl
41h 07m
2 stops
STL9:22 pmLambert-St Louis
Sep 20
STL5:32 pmLambert-St Louis
33h 43m
2 stops
RUH11:15 amRiyadh King Khaled Intl
$1,316
Turkish Airlines
Sep 17
RUH12:15 pmRiyadh King Khaled Intl
41h 07m
2 stops
STL9:22 pmLambert-St Louis
Sep 20
STL5:32 pmLambert-St Louis
33h 43m
2 stops
RUH11:15 amRiyadh King Khaled Intl
$1,320

American Airlines flights from Riyadh to St. Louis

Our best American Airlines deals on Riyadh to St. Louis flight tickets
American Airlines
Jun 18
RUH4:55 amRiyadh King Khaled Intl
22h 26m
2 stops
STL7:21 pmLambert-St Louis
Jun 25
STL11:15 amLambert-St Louis
24h 55m
2 stops
RUH8:10 pmRiyadh King Khaled Intl
$1,297
American Airlines
Jun 18
RUH12:35 amRiyadh King Khaled Intl
26h 55m
1 stop
STL7:30 pmLambert-St Louis
Jun 26
STL2:32 pmLambert-St Louis
22h 28m
2 stops
RUH9:00 pmRiyadh King Khaled Intl
$3,874

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 May 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

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Fri 6/19

10:30 pm-6:29 pm

2 stops27h 59m

Lambert-St Louis

Fri 6/26

1:42 pm-9:00 pm

2 stops23h 18m

$1,295

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 6/18

4:55 am-7:21 pm

2 stops22h 26m

Lambert-St Louis

Thu 6/25

11:15 am-8:10 pm

2 stops24h 55m

$1,297

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 9/17

12:15 pm-9:22 pm

2 stops41h 07m

Lambert-St Louis

Sun 9/20

5:32 pm-12:15 am

2 stops22h 43m

$1,311

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 9/17

12:15 pm-9:22 pm

2 stops41h 07m

Lambert-St Louis

Sun 9/20

5:32 pm-11:15 am

2 stops33h 43m

$1,316

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 9/17

12:15 pm-9:22 pm

2 stops41h 07m

Lambert-St Louis

Sun 9/20

5:32 pm-11:15 am

2 stops33h 43m

$1,320

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 9/17

12:15 pm-9:22 pm

2 stops41h 07m

Lambert-St Louis

Sun 9/20

5:32 pm-11:15 am

2 stops33h 43m

$1,321

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Sun 5/31

2:55 am-8:25 pm

2 stops25h 30m

Lambert-St Louis

Mon 6/8

2:15 pm-9:20 pm

2 stops23h 05m

$1,357

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 6/18

11:55 pm-5:23 pm

3 stops25h 28m

Lambert-St Louis

Thu 6/25

11:18 am-6:45 pm

2 stops23h 27m

$1,735

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Thu 6/18

12:35 am-7:30 pm

1 stop26h 55m

Lambert-St Louis

Fri 6/26

2:32 pm-9:00 pm

2 stops22h 28m

$3,874
Quickest round-trip

RiyadhSt. Louis

RUH - STL

RUHSTL

Riyadh King Khaled Intl

Wed 9/16

12:35 am-9:23 pm

2 stops28h 48m

Lambert-St Louis

Sun 9/20

9:40 pm-10:45 pm

1 stop17h 05m

$4,764

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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

27h 59m

Direct flights

None
The fastest flight from Riyadh to St. Louis takes 27h 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 27h 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.

Frequently asked questions about flying from Riyadh to St. Louis

  • How do I get Price Alerts for flights from Riyadh to St. Louis?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Riyadh from St. Louis. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Riyadh to St. Louis with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near St. Louis?

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

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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