Cheap Flights from St. Louis (STL) to Waterloo (ALO)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save on select hotels after you book a flight*
  • payments icon

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Waterloo Regional Airport last minute?
Being spontaneous is an awesome way to travel, but it isn't necessarily the wisest way to track down a cheap airfare. It's better to book your STL to Waterloo Regional Airport (ALO) trip ahead of time instead of leaving it to 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 your destination!
What airports do you fly into for Waterloo from St. Louis?
From St. Louis, you can fly into Waterloo through Waterloo Regional Airport (ALO), Eastern Iowa Airport (CID) and Marshalltown, IA (MIW-Marshalltown Municipal). It's wise to check which terminal is right for you before making your decision. If you opt for Waterloo Regional Airport (ALO), it's approximately 8 kilometers northwest of downtown. Use the money you save when booking your seat with Expedia to enjoy the city's well-known attractions, such as Lost Island Waterpark and Big Woods Lake Recreation Area.
Can I change the date of my flight from Lambert Field to Waterloo Regional Airport (ALO)?
You can quickly make changes to your Lambert-St. Louis Intl. Airport (STL) to Waterloo Regional Airport (ALO) ticket through the Expedia Trips portal. But before amending dates or times, check out the ticket rules in your itinerary to see what the airline will allow you to do and if fees apply. Some carriers charge a change fee per person, in addition to any difference in airfares. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also swing by our Customer Service portal for more handy information and to connect with our Virtual Agent.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Waterloo Regional
Distance
454 km

Book with confidence

Book with confidence

St. Louis to Waterloo Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Waterloo offer the perfect respite. Not only does exploring Waterloo 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 St. Louis to Waterloo 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 to 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 Waterloo are only a plane trip away. Book your travel arrangements with us today!

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

St. Louis to Waterloo Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia