AED410 Cheap Flights from Washington (IAD) to St. Louis (STL)

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

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

Prices were available within the past 7 days and start at AED410 for one-way flights and AED740 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Delta
Frontier Airlines
Frontier Airlines
Delta
Frontier Airlines
Delta
American Airlines
Delta
United
Flights from Washington (IAD) to St. Louis (STL)
Origin airport
Washington Dulles Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
AED740
Distance
1111 km
Average flight time
1 hour 23 mins

Washington to St. Louis Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to St. Louis offer the perfect respite. Not only does exploring St. Louis provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Washington to St. Louis may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from IAD to STL today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of St. Louis are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to St. Louis more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to St. Louis is AED410 now!

Frequently asked questions

How long does it take to fly from IAD to Lambert-St. Louis Intl. Airport (STL)?
A direct flight with United Airlines takes approximately 2 hours and 27 minutes. Step on board the 8:32AM flight from Dulles Intl. Airport and touch down at Lambert Field at 9:59AM. Pick up a superb deal on this route when you use Expedia to book your journey.
Is it cheaper to buy a plane ticket from Dulles Intl. Airport to Lambert Field last minute?
Being the spontaneous type is an awesome way to travel the globe, but it isn't always the best way to nab a bargain plane ticket. Consider booking your IAD to STL trip in advance rather than leaving it until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave your spontaneity for when you reach STL!
What airline has the least delays from Dulles Intl. Airport to Lambert Field?
Journey with United Airlines from Dulles Intl. Airport to STL and you're more likely to touch down at the time listed on your boarding pass. This airline takes first place on this route, with an 86% on-time score. If your flight is delayed for whatever reason, the Expedia App will help you stay in the loop. It'll give you trip alerts right when you need them, from flight delays to gate changes.
What airports do you fly into for St. Louis from Washington?
With Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS) to pick from, flying from Washington to St. Louis is no sweat. The city's major gateway, Lambert-St. Louis Intl. Airport (STL), is approximately 19 kilometers northwest of the center. Along with ticket prices, consider factors like bus or train options from the airport and the distance to your hotel when choosing where to fly into. Get your St. Louis adventure off to a terrific start by visiting Busch Stadium and Gateway Arch.
What are the most popular departure times for flights from IAD to Lambert Field?
The most popular departure times for flights from IAD to STL fall between 8:00 AM - 9:00 AM on United Airlines. Our tip is to jet off in the morning. The earlier you travel, the better your chances of arriving on time with lighter air traffic around.
Can I change the date of my flight from Washington Dulles Intl. Airport (IAD) to STL?
You can easily make changes to your Dulles Intl. Airport to Lambert-St. Louis Intl. Airport (STL) trip by logging in to the Expedia Trips portal. But before doing so, check out the rules in your itinerary to learn what you're allowed to do and what charges may apply. Some carriers charge a change fee per person, on top of any difference in ticket prices. But if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also browse our Customer Service portal for further details and to connect with our Virtual Agent.

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