Cheap flights from St Louis to Riyadh

Compare St Louis to Riyadh flight deals

Find the cheapest month or even day of the year to fly to Riyadh

Book the best Riyadh fare with no extra fees

Flight deals from St Louis Airport to Riyadh Airport

Looking for a cheap last-minute deal or the best return flight from St Louis to Riyadh? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Riyadh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Riyadh flights are currently cheapest in April.

St Louis to Riyadh: Alternative routes

Compare routes from St Louis to Riyadh below. You may find an airport to fly into that's cheaper, faster, or easier than Riyadh.

St Louis to Riyadh: Flight information

The things to know before you go.
Cheapest flight found$652
Cheapest month to flyApril

Finding cheap flights from St Louis to Riyadh: Frequently asked questions

The best price we found for a return flight from St Louis to Riyadh is $1,235. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Riyadh. But we found flights with one or more stops from $1,235.
As of March 2026, there are no flights flying from St Louis to Riyadh.
The cheapest month to fly from St Louis to Riyadh is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Riyadh Airport on Wednesday, 6 May 2026.
No airlines currently offer direct flights between St Louis Airport and Riyadh Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Riyadh but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Riyadh is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Qatar Airways offers the cheapest flight tickets to Riyadh.

Flying from Lambert-St. Louis International Airport (STL) to King Khaled International Airport (RUH): what you need to know

  • Riyadh is eight hours ahead of St Louis and observes the UTC+3 timezone.

  • To ensure you get on your STL to RUH flight, leave plenty of time for things like baggage drop and finding your gate. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Be prepared for bigger queues in popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.

  • Enjoy a quick visit to another city or simply break up your journey with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from Lambert-St. Louis International Airport to King Khaled International Airport. Many travellers pass through Washington Dulles International Airport on this route.

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to King Khaled International Airport (RUH)

  • The lowest price we've found for a one-way Lambert-St. Louis International Airport to King Khaled International Airport flight is $652. A return fare is currently $1,235. Depending on the availability when you book, these fares can change.

  • It's usually smart to book ahead of time if you want to get cheap tickets from STL to RUH. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • The 'Whole month' search function shows you the cheapest flights from Lambert-St. Louis International Airport to King Khaled International Airport across the month. It's an easy way to snap up a bargain if your trip dates are flexible.

  • Finding cheap flights from STL to RUH is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Lambert-St. Louis International Airport to King Khaled International Airport.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at King Khaled International Airport (RUH)

Getting from King Khaled International Airport (RUH) to central Riyadh

  • King Khaled International Airport to central Riyadh has a drive time of about 35 minutes. It's approximately 40 kilometres away.

When to fly to King Khaled International Airport (RUH)

  • The quietest month for a flight from Lambert-St. Louis International Airport to King Khaled International Airport is April, while July is the busiest. Pick the best time to go to Riyadh based on whether you prefer a faster pace or a more relaxed vibe.

  • Book your flight from Lambert-St. Louis International Airport to King Khaled International Airport for July if you want to explore Riyadh during its warmest month. Expect temperatures of between 26ºC (79ºF) and 44ºC (111ºF).

  • January has average temperatures of between 7ºC (45ºF) and 23ºC (73ºF). Search for cheap tickets from STL to RUH around that time if you'd rather travel in cooler conditions.

Explore more of Saudi Arabia

  • You've visited Riyadh, now it's time to explore more of Saudi Arabia. Journey around 386 kilometres north-east to Dammam to tick off its popular sights. From King Fahd Park to Dammam Corniche and Marjan Island, you've got a jam-packed schedule ahead.

  • Eager to explore Prince Abdulrahman bin Nasser Park? Then find your way to Al Kharj. Another worthwhile stop in Saudi Arabia, it's located roughly 137 kilometres south-east of Riyadh.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.