St. Peter's Basilica with its dome and adjacent obelisk, surrounded by a colonnade.

Cheap Flights to St. Peters: St. Peters Flight Deals

View €51 flight on Mon, 28 Sept 2026Opens in a new window

Flight 1

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Cheap round-trip flights to St. Peters

Prices were available within the past 7 days and start at €51 for one-way flights and €102 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Delta
United
Iberia
KLM

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

From €130 - €338 per traveller.

Frequently asked questions

What is the name of St. Peters' airport?
St. Peters is served by a single airport, Lambert-St. Louis Intl. Airport (STL).
How far is Lambert Field from central St. Peters?
It's 23 kilometres from Lambert Field to downtown St. Peters. Make things easy by researching the best way of getting from the terminal to the city centre before you land.
What airport is best to fly into St. Peters?
Make your way through the doors of Lambert-St. Louis Intl. Airport (STL) and your St. Peters adventure will have begun! The city's main airport, it's located 23 kilometres from the centre of town.
How many airlines fly to St. Peters?
St. Peters is serviced by 12 air carriers from at least 61 airports across the globe.
Which airlines fly to St. Peters?
United Airlines and American Airlines are some of the leading airlines that offer flights to St. Peters. Most travellers use Chicago to set off from with United Airlines flying this route the most.
How many nonstop flights are there to St. Peters?
With 1,206 direct flights operating every week, you'll be arriving in St. Peters before you can ask, "Are we there yet?"
Where are the most popular flights to St. Peters departing from?
Flights to St. Peters from Chicago, Dallas and New York airports are always popular.
How long is the flight to St. Peters Airport?
If you're heading to St. Peters from Chicago, you'll have a flight time of 1 hour and 22 minutes. Those setting off from Dallas can expect to be in the air for 1 hour and 43 minutes. From New York it's 3 hours and 1 minute away.
How to book the cheapest flight to St. Peters?
If you want to have some extra spending money on your trip to St. Peters, then listen up! As any experienced jet-setter will tell you, don't book at the very last minute. Prices are often highest close to the departure date. Don't stop there, however. Do some research and find out if there are multiple airports at your destination. Ticket prices often differ depending on which airport you use. Make sure you compare fares across air carriers as well. Lastly, be ready to lock in your seat quickly if you find an irresistible price. It might not be available for too long! With a bit of knowledge and a little good fortune, the perfect airfare can be yours.
Do you have any tips for my flight to St. Peters?
We've pulled together all the info you need to make your journey an enjoyable experience. Follow our tips and you'll be speeding through airport security and discovering St. Peters in next to no time. What to pack in your hand luggage:
  • The secret to having a pain-free flight experience is to be prepared. So, let's start with the essentials: passport, travel documents, cash and vital medications. Next, bring items that'll help pass the time, like some electronic devices or a good read. It's also wise to pack your chargers, a neck pillow and a pair of earphones. And of course, don't forget to pop in toiletries like a toothbrush, cleansing wipes and a fresh change of clothes.
Do not pack the following items in your hand luggage:
  • While the list of banned items differs between air carriers, the general rule to follow is avoid carrying anything sharp, flammable or explosive. This includes things like tools, metal cutlery, fuels and bleaching agents. Sporting equipment like ice skates, and objects that could harm passengers, such as firearms and swords, can't come on board with you either.
What to wear on a flight:
  • Your main aim is to feel as comfortable as you can. Go for shoes that are easy to slip on and off, dress in loose, natural-fibre clothing and don't forget to take a pullover in case it gets cold in the cabin.
  • Deep vein thrombosis (DVT) can pose a risk on long-distance flights. It results from blood clots forming due to poor circulation and inactivity, so do some gentle foot and leg exercises in your seat and consider wearing compression socks or tights.
How to get through airport security fast when flying to St. Peters?
A little pre-planning before you arrive at the airport will help make your trip to St. Peters easy and painless. We've compiled some handy tips and tricks for a swift journey past security:
  • Security personnel first need to determine that you have a valid ID and boarding pass before anything else. Have them close by, ready for inspection.
  • The X-ray machine is up next. Remove anything metal on you that is likely to set off the scanner's alarm. This includes items like headphones or earphones, as well as heavy jackets or coats. They'll need to be placed on the conveyor belt for screening.
  • For just a few minutes, you'll need to unplug from technology. Your phone, laptop and any other electronic gadgets also need to go through the scanner.
  • Can't travel without your favourite cologne? No problem. As long as the volume is no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, you're allowed to bring it with you in your carry-on.
  • Choosing your footwear wisely can save you several valuable minutes. Hiking or heavy-style boots are often required to be removed and X-rayed separately. Lightweight sneakers are usually not.
  • Airlines will not allow any sharp items or pocket knives to come on board with you. If you need to bring these kinds of items, put them in your checked luggage.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to St. Peters. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to St. Peters. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to St. Peters, or are just on the lookout for the best flights to St. Peters, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in St. Peters to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
€102

Trending flights to St. Peters

Prices were available within the past 7 days and start at €51 for one-way flights and €102 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
*Available to Expedia members.