₹11,103 Cheap Flights from Washington (IAD) to St. Louis (STL)

View ₹11,103 flight on Thu, 1 Jan 2026Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Washington (IAD) to St. Louis (STL)

Prices were available within the past 7 days and start at ₹11,103 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Washington (IAD) to St. Louis (STL)

December is typically the cheapest month to fly

From ₹11,997 - ₹58,969 per traveller.
Flight from Washington to St. Louis route information
Origin airport
Washington Dulles Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
1111 km
Average flight time
1 hour 27 mins

Perfect flights from Washington to St. Louis

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to St. Louis. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Washington Dulles Intl. to Lambert-St. Louis Intl. ticket options cater to your travel preferences, with incredible one-way fares from ₹11,103 and roundtrip prices . Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Lambert-St. Louis Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in St. Louis.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to Lambert-St. Louis Intl. Airport (STL)?
Round-trip tickets from IAD to St. Louis Lambert International Airport start from . This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAD to Lambert-St. Louis Intl. Airport (STL)?
When it comes to cancellation fees, every airline has its own terms and conditions. If you decide to cancel your holiday, head to our Customer Service Portal.
How do I find cheap flights from IAD to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to Lambert Field flights, you'll see a "no change fees" filter for you to select.
How far is the flight from IAD to STL?
The distance from Dulles Intl. Airport (IAD) to Lambert-St. Louis Intl. Airport (STL) (STL) is just 1,100 kilometres. You'll be stepping off the plane and grabbing your bags from the carousel before long.
Which airlines fly direct from Dulles Intl. Airport to Lambert Field?
A popular option with many travellers, United Airlines (UA) operates 60 monthly flights from IAD to STL. Pick the one that fits with your travel plans and book your fare today.
Are Dulles Intl. Airport to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Washington Dulles Intl. Airport (IAD) to STL can be hit-or-miss. It is possible to score a bargain, but you could also miss out entirely! If you'd prefer to play it safe and start your travel planning early on, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines issue their prices that far in advance. Our top tip? Check back often as updates are made frequently.

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