Cheap Flights to Dupo: Dupo Flight Deals

View €112 flight on Sat, 17 Jan 2026Opens in a new window

Popular airlines to Dupo

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Cheap round-trip flights to Dupo

Prices were available within the past 7 days and start at €112 for one-way flights and €197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 17 Jan - Sat, 24 Jan
MDT
Harrisburg
STL
St. Louis
€197 Return, found 1 day ago
€197
Return
found 1 day ago
Select American Airlines flight, departing Sat, 17 Jan from Harrisburg to St. Louis, returning Sat, 24 Jan, priced at €197 found 1 day ago
Delta
Sat, 17 Jan - Sat, 24 Jan
MDT
Harrisburg
STL
St. Louis
€197 Return, found 1 day ago
€197
Return
found 1 day ago
Select Delta flight, departing Sat, 17 Jan from Harrisburg to St. Louis, returning Sat, 24 Jan, priced at €197 found 1 day ago
United
Tue, 26 May - Tue, 2 Jun
EWR
New York
STL
St. Louis
€246 Return, found 5 days ago
€246
Return
found 5 days ago
Select United flight, departing Tue, 26 May from New York to St. Louis, returning Tue, 2 Jun, priced at €246 found 5 days ago
British Airways
Mon, 12 Jan - Mon, 26 Jan
LHR
London
STL
St. Louis
€625 Return, found 2 days ago
€625
Return
found 2 days ago
Select British Airways flight, departing Mon, 12 Jan from London to St. Louis, returning Mon, 26 Jan, priced at €625 found 2 days ago
Iberia
Mon, 12 Jan - Mon, 26 Jan
LHR
London
STL
St. Louis
€644 Return, found 2 days ago
€644
Return
found 2 days ago
Select Iberia flight, departing Mon, 12 Jan from London to St. Louis, returning Mon, 26 Jan, priced at €644 found 2 days ago

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

October is typically the cheapest month to fly

From €118 - €386 per traveller.

Frequently asked questions

What is the name of Dupo's airport?
Book a flight to Dupo and you'll be hitting the tarmac at Lambert-St. Louis Intl. Airport (STL).
How far is Lambert Field from central Dupo?
The journey from STL to downtown Dupo is reasonably long. You'll need to travel 29 kilometres before you can check in to your city hotel.
What airport is best to fly into Dupo?
Make your way through the exit doors of Lambert-St. Louis Intl. Airport (STL) and your Dupo adventure will have begun! The city's main airport, it's located 29 kilometres from the downtown streets.
How many airlines fly to Dupo?
There are a total of 12 air carriers connecting Dupo to 61 airports across the world.
Which airlines fly to Dupo?
United Airlines and American Airlines operate the most flights to Dupo. One of the most preferred ways to travel there is with a United Airlines flight leaving from Chicago.
How many nonstop flights are there to Dupo?
With roughly 1,206 direct flights running every week, you'll be hitting the tarmac in Dupo before you can say, "Are we there yet?"
Where are the most popular flights to Dupo departing from?
The most popular flights to Dupo leave from Chicago, Dallas and New York airports.
How long is the flight to Dupo Airport?
If you're heading to Dupo from Chicago, you're looking at a flight time of 1 hour and 22 minutes. Those jetting off from Dallas should expect to be airborne for around 1 hour and 43 minutes. From New York it's approximately 3 hours and 1 minute away.
How to book the cheapest flight to Dupo?
We've all come across those lucky travellers who somehow manage to nab impossibly cheap plane tickets wherever they go. Want to know how to do it for your Dupo holiday? Don't leave it until the last possible moment to secure your flight. Also, look around online and compare your options. If your destination has several airports, you may be able to nab a fantastic deal by flying into a less busy terminal. Finally, be ready to lock in your seat quickly if you find a real bargain. It might not be available for long! With a bit of knowledge and a little luck, the ideal airfare will be yours.
Do you have any tips for my flight to Dupo?
Depending on where you're coming from, your journey to Dupo could be completely painless or it could go on forever. We've rounded up some useful hints that will help you start your next great adventure on the right foot. What to pack in your hand luggage:

  • A plane ride can be a great experience if you take the right things. First things first, you'll need toiletry items, such as a toothbrush and hairbrush, a spare change of clothes and a magazine or two. Secondly, make room in your carry-on bag for your laptop, a charger, any medications and perhaps a cosy neck pillow as well. Lastly, don't forget to take your passport, travel documents and your credit cards.

Do not pack the following items in your hand luggage:

  • While the list of prohibited items can differ between airlines, the general rule to follow is avoid carrying anything flammable, sharp or explosive. This includes screwdrivers, drills, spray paint and flares. Sports equipment like ski poles, and items that could harm passengers, such as firearms and ammunition, won't be allowed on board either.

What to wear on a flight:

  • Your top priority is to feel as comfortable as possible. Pick a pair of flat, closed-toe shoes, dress in loose, natural-fibre clothing and don't forget to bring a jacket in case it gets chilly in the cabin.
  • Most of us have heard about deep vein thrombosis (DVT), a blood clotting condition caused by long periods of inactivity. To lower your risk on board, drink plenty of water, consider wearing compression socks and keep your feet and legs moving.

How to get through airport security fast when flying to Dupo?
Being organised before your flight can make your getaway to Dupo a breeze. We've rounded up some useful tips and tricks for a swift journey past security:

  • Be sure to have your travel documents and ID within close reach. They're the first items you'll be asked for by airport security.
  • After that, both you and your carry-on luggage will be X-rayed. To speed things up, remove anything that is likely to set the alarm off. Personal belongings such as your belt, coat and headphones will be required to go through the machine.
  • For just a few minutes, you'll have to unplug from technology. Your tablet, phone and any other electronic devices will need to be sent through the scanner.
  • Remove all liquids and gels from your hand luggage. They usually need to be sent through the X-ray machine separately. Each product should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a single quart-size (one litre), clear zip-lock bag.
  • Slip-on shoes are a good footwear choice as you're less likely to have to remove them when going through security. Safety boots and other heavy shoes are often subjected to extra screening.
  • Sharp items like knives are not allowed on board. They'll be seized at security, so pack them in your checked bags.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Dupo. 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 Dupo. 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 Dupo, or are just on the lookout for the best flights to Dupo, 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 Dupo 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
Return price
€196

Trending flights to Dupo

Prices were available within the past 7 days and start at €112 for one-way flights and €197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, 13 May - Mon, 25 May
DUB
Dublin
STL
St. Louis
€654 Return, found 1 day ago
€654
Return
found 1 day ago
Select Aer Lingus flight, departing Wed, 13 May from Dublin to St. Louis, returning Mon, 25 May, priced at €654 found 1 day ago

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